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Climate and Average Weather Year Round in Ōtsuchi Japan

In Ōtsuchi, the summers are comfortable, humid, wet, and mostly cloudy and the winters are very cold, snowy, windy, and mostly clear. Over the course of the year, the temperature typically varies from 27°F to 77°F and is rarely below 20°F or above 84°F.

Based on the tourism score, the best time of year to visit Ōtsuchi for warm-weather activities is from mid July to early September.

Climate in Ōtsuchi

very coldcoldcoolcomfortablewarmcoolcoldJanFebMarAprMayJunJulAugSepOctNovDecNowNow70%70%40%40%clearovercastprecipitation: 6.7 inprecipitation: 6.7 in1.5 in1.5 inmuggy: 75%muggy: 75%0%0%drydrytourism score: 6.7tourism score: 6.70.00.0
Ōtsuchi weather by month. Click on each chart for more information.

The warm season lasts for 3.0 months, from June 27 to September 26, with an average daily high temperature above 69°F. The hottest month of the year in Ōtsuchi is August, with an average high of 76°F and low of 68°F.

The cold season lasts for 3.4 months, from December 6 to March 18, with an average daily high temperature below 45°F. The coldest month of the year in Ōtsuchi is January, with an average low of 27°F and high of 37°F.

Average High and Low Temperature in Ōtsuchi

Average High and Low Temperature in ŌtsuchiwarmcoldcoldJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FJan 2637°FJan 2637°FAug 877°FAug 877°F27°F27°F69°F69°FJun 2769°FJun 2769°FSep 2669°FSep 2669°FDec 645°FDec 645°FMar 1845°FMar 1845°F61°F61°F58°F58°F34°F34°F33°F33°FNowNow
The daily average high (red line) and low (blue line) temperature, with 25th to 75th and 10th to 90th percentile bands. The thin dotted lines are the corresponding average perceived temperatures.
AverageJanFebMarAprMayJunJulAugSepOctNovDec
High 37°F38°F45°F54°F62°F67°F73°F76°F72°F63°F52°F42°F
Temp. 32°F32°F38°F47°F56°F62°F69°F72°F67°F56°F46°F37°F
Low 27°F28°F33°F42°F51°F59°F65°F68°F62°F50°F40°F32°F

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in Ōtsuchi

Average Hourly Temperature in ŌtsuchiJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMNowNowfreezingfreezingvery coldvery coldcoldcoldcoolcoolcomfortablewarm
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The average hourly temperature, color coded into bands. The shaded overlays indicate night and civil twilight.

New Shoreham, Rhode Island, United States (6,495 miles away) is the far-away foreign place with temperatures most similar to Ōtsuchi (view comparison).

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Compare Ōtsuchi to another city:

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In Ōtsuchi, the average percentage of the sky covered by clouds experiences significant seasonal variation over the course of the year.

The clearer part of the year in Ōtsuchi begins around October 7 and lasts for 5.7 months, ending around March 31.

The clearest month of the year in Ōtsuchi is January, during which on average the sky is clear, mostly clear, or partly cloudy 68% of the time.

The cloudier part of the year begins around March 31 and lasts for 6.3 months, ending around October 7.

The cloudiest month of the year in Ōtsuchi is July, during which on average the sky is overcast or mostly cloudy 59% of the time.

Cloud Cover Categories in Ōtsuchi

Cloud Cover Categories in ŌtsuchiclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Dec 2770%Dec 2770%Jul 240%Jul 240%Oct 754%Oct 754%Mar 3155%Mar 3155%NowNowclearmostly clearpartly cloudyovercastmostly cloudy
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
The percentage of time spent in each cloud cover band, categorized by the percentage of the sky covered by clouds.
FractionJanFebMarAprMayJunJulAugSepOctNovDec
Cloudier 32%36%43%49%53%56%59%54%53%40%34%32%
Clearer 68%64%57%51%47%44%41%46%47%60%66%68%

A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. The chance of wet days in Ōtsuchi varies throughout the year.

The wetter season lasts 6.3 months, from April 10 to October 19, with a greater than 28% chance of a given day being a wet day. The month with the most wet days in Ōtsuchi is September, with an average of 11.8 days with at least 0.04 inches of precipitation.

The drier season lasts 5.7 months, from October 19 to April 10. The month with the fewest wet days in Ōtsuchi is January, with an average of 4.5 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in Ōtsuchi is September, with an average of 11.8 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 42% on August 29.

Daily Chance of Precipitation in Ōtsuchi

Daily Chance of Precipitation in ŌtsuchiwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Aug 2942%Aug 2942%Jan 2313%Jan 2313%Apr 1028%Apr 1028%Oct 1928%Oct 1928%NowNowrainmixedsnow
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).
Days ofJanFebMarAprMayJunJulAugSepOctNovDec
Rain 3.2d3.0d5.9d8.6d9.2d10.0d11.5d10.9d11.8d8.9d6.8d4.8d
Mixed 0.9d1.1d0.9d0.1d0.0d0.0d0.0d0.0d0.0d0.0d0.1d0.4d
Snow 0.3d0.5d0.2d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.1d
Any 4.5d4.6d6.9d8.7d9.2d10.0d11.5d10.9d11.8d8.9d6.9d5.3d

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Ōtsuchi experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Ōtsuchi. The month with the most rain in Ōtsuchi is September, with an average rainfall of 6.7 inches.

The month with the least rain in Ōtsuchi is January, with an average rainfall of 1.3 inches.

Average Monthly Rainfall in Ōtsuchi

Average Monthly Rainfall in ŌtsuchiJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 in12 in12 in14 in14 inSep 116.7 inSep 116.7 inFeb 11.2 inFeb 11.2 inJul 85.6 inJul 85.6 inMay 34.0 inMay 34.0 inNowNow
The average rainfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average snowfall.
JanFebMarAprMayJunJulAugSepOctNovDec
Rainfall 1.3″1.5″2.5″3.7″3.8″4.6″5.4″5.5″6.7″4.3″2.8″1.8″

Snowfall

As with rainfall, we consider the snowfall accumulated over a sliding 31-day period centered around each day of the year. Ōtsuchi experiences some seasonal variation in monthly snowfall.

The snowy period of the year lasts for 2.8 months, from December 30 to March 23, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Ōtsuchi is February, with an average snowfall of 2.3 inches.

The snowless period of the year lasts for 9.2 months, from March 23 to December 30. The least snow falls around July 20, with an average total accumulation of 0.0 inches.

Average Monthly Snowfall in Ōtsuchi

Average Monthly Snowfall in ŌtsuchisnowJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 in7 in7 inFeb 22.3 inFeb 22.3 inJul 200.0 inJul 200.0 inDec 301.0 inDec 301.0 inMar 231.0 inMar 231.0 inNowNow
The average snowfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average rainfall.
JanFebMarAprMayJunJulAugSepOctNovDec
Snowfall 1.8″2.3″1.4″0.1″0.0″0.0″0.0″0.0″0.0″0.0″0.1″0.5″

The length of the day in Ōtsuchi varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 24 minutes of daylight; the longest day is June 21, with 14 hours, 57 minutes of daylight.

Hours of Daylight and Twilight in Ōtsuchi

Hours of Daylight and Twilight in ŌtsuchiJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 8 minMar 2012 hr, 8 minMar 2014 hr, 57 minJun 2114 hr, 57 minJun 2112 hr, 10 minSep 2212 hr, 10 minSep 229 hr, 24 minDec 219 hr, 24 minDec 21nightnightdayNowNow
The number of hours during which the Sun is visible (black line). From bottom (most yellow) to top (most gray), the color bands indicate: full daylight, twilight (civil, nautical, and astronomical), and full night.
Hours ofJanFebMarAprMayJunJulAugSepOctNovDec
Daylight 9.7h10.7h12.0h13.3h14.3h14.9h14.6h13.7h12.4h11.2h10.0h9.4h

The earliest sunrise is at 4:05 AM on June 14, and the latest sunrise is 2 hours, 48 minutes later at 6:52 AM on January 5. The earliest sunset is at 4:08 PM on December 7, and the latest sunset is 2 hours, 55 minutes later at 7:03 PM on June 28.

Daylight saving time (DST) is not observed in Ōtsuchi during 2024.

Sunrise & Sunset with Twilight in Ōtsuchi

Sunrise & Sunset with Twilight in ŌtsuchiJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PMJun 144:05 AMJun 144:05 AM7:03 PMJun 287:03 PMJun 28Dec 74:08 PMDec 74:08 PM6:52 AMJan 56:52 AMJan 5daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of the year 2024. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in Ōtsuchi

Solar Elevation and Azimuth in ŌtsuchiJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AM000010101010202020203030303040404050506060700000101010102020202030303040405050602774NowNow
northeastsouthwest
Solar elevation and azimuth over the course of the year 2024. The black lines are lines of constant solar elevation (the angle of the sun above the horizon, in degrees). The background color fills indicate the azimuth (the compass bearing) of the sun. The lightly tinted areas at the boundaries of the cardinal compass points indicate the implied intermediate directions (northeast, southeast, southwest, and northwest).

The figure below presents a compact representation of key lunar data for 2024. The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.

Moon Rise, Set & Phases in Ōtsuchi

The time in which the moon is above the horizon (light blue area), with new moons (dark gray lines) and full moons (blue lines) indicated. The shaded overlays indicate night and civil twilight.

We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid. Unlike temperature, which typically varies significantly between night and day, dew point tends to change more slowly, so while the temperature may drop at night, a muggy day is typically followed by a muggy night.

Ōtsuchi experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 2.7 months, from June 30 to September 20, during which time the comfort level is muggy, oppressive, or miserable at least 19% of the time. The month with the most muggy days in Ōtsuchi is August, with 21.4 days that are muggy or worse.

The least muggy day of the year is March 11, when muggy conditions are essentially unheard of.

Humidity Comfort Levels in Ōtsuchi

Humidity Comfort Levels in ŌtsuchimuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Mar 110%Mar 110%75%Aug 775%Aug 7Jun 3019%Jun 3019%Sep 2019%Sep 2019%NowNowoppressiveoppressivemuggymuggyhumidhumiddrydrycomfortablecomfortable
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.
JanFebMarAprMayJunJulAugSepOctNovDec
Muggy days 0.0d0.0d0.0d0.0d0.0d1.9d14.6d21.4d8.4d0.5d0.0d0.0d

This section discusses the wide-area hourly average wind vector (speed and direction) at 10 meters above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.

The average hourly wind speed in Ōtsuchi experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 5.7 months, from October 26 to April 16, with average wind speeds of more than 10.5 miles per hour. The windiest month of the year in Ōtsuchi is January, with an average hourly wind speed of 13.7 miles per hour.

The calmer time of year lasts for 6.3 months, from April 16 to October 26. The calmest month of the year in Ōtsuchi is July, with an average hourly wind speed of 7.1 miles per hour.

Average Wind Speed in Ōtsuchi

Average Wind Speed in ŌtsuchiwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mph18 mph18 mph20 mph20 mphJan 1913.9 mphJan 1913.9 mphJul 197.1 mphJul 197.1 mphOct 2610.5 mphOct 2610.5 mphApr 1610.5 mphApr 1610.5 mphNowNow
The average of mean hourly wind speeds (dark gray line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Wind Speed (mph) 13.713.312.210.58.97.57.17.68.710.111.513.0

The predominant average hourly wind direction in Ōtsuchi varies throughout the year.

The wind is most often from the south for 4.5 months, from May 13 to September 27, with a peak percentage of 45% on August 6. The wind is most often from the west for 7.5 months, from September 27 to May 13, with a peak percentage of 72% on January 1.

Wind Direction in Ōtsuchi

Wind Direction in ŌtsuchiWSWJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwestsoutheastnorth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

Ōtsuchi is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.

The average water temperature experiences significant seasonal variation over the course of the year.

The time of year with warmer water lasts for 2.8 months, from July 18 to October 11, with an average temperature above 66°F. The month of the year in Ōtsuchi with the warmest water is August, with an average temperature of 70°F.

The time of year with cooler water lasts for 3.6 months, from January 18 to May 5, with an average temperature below 49°F. The month of the year in Ōtsuchi with the coolest water is March, with an average temperature of 44°F.

Average Water Temperature in Ōtsuchi

Average Water Temperature in ŌtsuchiwarmcoolJanFebMarAprMayJunJulAugSepOctNovDec35°F35°F40°F40°F45°F45°F50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°FAug 2071°FAug 2071°F44°FMar 1344°FMar 13Jul 1866°FJul 1866°FOct 1166°FOct 1166°FJan 1849°FJan 1849°FMay 549°FMay 549°FNowNow
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature 50°F46°F44°F46°F52°F59°F65°F70°F69°F65°F59°F54°F

To characterize how pleasant the weather is in Ōtsuchi throughout the year, we compute two travel scores.

The tourism score favors clear, rainless days with perceived temperatures between 65°F and 80°F. Based on this score, the best time of year to visit Ōtsuchi for general outdoor tourist activities is from mid July to early September, with a peak score in the second week of August.

Tourism Score in Ōtsuchi

Tourism Score in Ōtsuchibest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.76.70.00.0NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationtourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Ōtsuchi for hot-weather activities is from late July to late August, with a peak score in the first week of August.

Beach/Pool Score in Ōtsuchi

Beach/Pool Score in ŌtsuchiJanFebMarAprMayJunJulAugSepOctNovDec002244668810104.94.90.00.0NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationbeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season in Ōtsuchi typically lasts for 7.7 months (234 days), from around April 2 to around November 22, rarely starting before March 17 or after April 18, and rarely ending before November 6 or after December 8.

Time Spent in Various Temperature Bands and the Growing Season in Ōtsuchi

Time Spent in Various Temperature Bands and the Growing Season in Ōtsuchigrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Apr 250%Apr 250%Nov 2250%Nov 2290%Apr 1890%Apr 1890%Nov 690%Nov 610%Mar 1710%Mar 1710%Dec 810%Dec 8Jul 29100%Jul 29100%freezingvery coldcoldcoolcomfortablewarm
frigid 15°F freezing 32°F very cold 45°F cold 55°F cool 65°F comfortable 75°F warm 85°F hot 95°F sweltering
The percentage of time spent in various temperature bands. The black line is the percentage chance that a given day is within the growing season.

Growing degree days are a measure of yearly heat accumulation used to predict plant and animal development, and defined as the integral of warmth above a base temperature, discarding any excess above a maximum temperature. In this report, we use a base of 50°F and a cap of 86°F.

Based on growing degree days alone, the first spring blooms in Ōtsuchi should appear around May 7, only rarely appearing before April 28 or after May 16.

Growing Degree Days in Ōtsuchi

Growing Degree Days in ŌtsuchiJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°F2,500°F2,500°FMay 790°FMay 790°FJul 16900°FJul 16900°FAug 271,800°FAug 271,800°FDec 312,653°FDec 312,653°F
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences significant seasonal variation over the course of the year.

The brighter period of the year lasts for 4.1 months, from April 16 to August 21, with an average daily incident shortwave energy per square meter above 5.3 kWh. The brightest month of the year in Ōtsuchi is June, with an average of 6.0 kWh.

The darker period of the year lasts for 3.1 months, from November 8 to February 10, with an average daily incident shortwave energy per square meter below 2.8 kWh. The darkest month of the year in Ōtsuchi is December, with an average of 2.0 kWh.

Average Daily Incident Shortwave Solar Energy in Ōtsuchi

Average Daily Incident Shortwave Solar Energy in ŌtsuchibrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhJun 26.2 kWhJun 26.2 kWhDec 221.9 kWhDec 221.9 kWhApr 165.3 kWhApr 165.3 kWhAug 215.3 kWhAug 215.3 kWhFeb 102.8 kWhFeb 102.8 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Solar Energy (kWh) 2.23.04.15.35.96.05.85.54.33.52.52.0

For the purposes of this report, the geographical coordinates of Ōtsuchi are 39.367 deg latitude, 141.900 deg longitude, and 16 ft elevation.

The topography within 2 miles of Ōtsuchi contains very significant variations in elevation, with a maximum elevation change of 1,388 feet and an average elevation above sea level of 358 feet. Within 10 miles contains very significant variations in elevation (3,445 feet). Within 50 miles also contains extreme variations in elevation (6,250 feet).

The area within 2 miles of Ōtsuchi is covered by trees (83%), within 10 miles by trees (57%) and water (39%), and within 50 miles by water (61%) and trees (32%).

This report illustrates the typical weather in Ōtsuchi, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.

Temperature and Dew Point

There are 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Ōtsuchi.

For each station, the records are corrected for the elevation difference between that station and Ōtsuchi according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.

The estimated value at Ōtsuchi is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Ōtsuchi and a given station.

The stations contributing to this reconstruction are:

  • Matsushima Ab (RJST, 39%, 76 mi, southwest, -10 ft elevation change)
  • Hachinohe Ab (RJSH, 32%, 85 mi, north, 135 ft elevation change)
  • Akita Airport (RJSK, 29%, 91 mi, west, 295 ft elevation change)

To get a sense of how much these sources agree with each other, you can view a comparison of Ōtsuchi and the stations that contribute to our estimates of its temperature history and climate. Please note that each source's contribution is adjusted for elevation and the relative change present in the MERRA-2 data.

Other Data

All data relating to the Sun's position (e.g., sunrise and sunset) are computed using astronomical formulas from the book, Astronomical Algorithms 2nd Edition , by Jean Meeus.

All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.

Land Use data comes from the Global Land Cover SHARE database , published by the Food and Agriculture Organization of the United Nations.

Elevation data comes from the Shuttle Radar Topography Mission (SRTM) , published by NASA's Jet Propulsion Laboratory.

Names, locations, and time zones of places and some airports come from the GeoNames Geographical Database .

Time zones for airports and weather stations are provided by AskGeo.com .

Maps are © OpenStreetMap contributors.

Disclaimer

The information on this site is provided as is, without any assurances as to its accuracy or suitability for any purpose. Weather data is prone to errors, outages, and other defects. We assume no responsibility for any decisions made on the basis of the content presented on this site.

We draw particular cautious attention to our reliance on the MERRA-2 model-based reconstructions for a number of important data series. While having the tremendous advantages of temporal and spatial completeness, these reconstructions: (1) are based on computer models that may have model-based errors, (2) are coarsely sampled on a 50 km grid and are therefore unable to reconstruct the local variations of many microclimates, and (3) have particular difficulty with the weather in some coastal areas, especially small islands.

We further caution that our travel scores are only as good as the data that underpin them, that weather conditions at any given location and time are unpredictable and variable, and that the definition of the scores reflects a particular set of preferences that may not agree with those of any particular reader.

Please review our full terms contained on our Terms of Service page.