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Climate and Average Weather Year Round in Itako Japan

In Itako, the summers are short, warm, oppressive, and mostly cloudy; the winters are very cold, windy, and mostly clear; and it is wet year round. Over the course of the year, the temperature typically varies from 30°F to 84°F and is rarely below 23°F or above 91°F.

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

Climate in Itako

coldcoolcomfortablewarmcoolcoldJanFebMarAprMayJunJulAugSepOctNovDecNowNow75%75%28%28%clearprecipitation: 7.6 inprecipitation: 7.6 in1.8 in1.8 inmuggy: 93%muggy: 93%0%0%drydrytourism score: 6.5tourism score: 6.50.10.1
Itako weather by month. Click on each chart for more information.

The warm season lasts for 2.7 months, from June 29 to September 18, with an average daily high temperature above 77°F. The hottest month of the year in Itako is August, with an average high of 84°F and low of 72°F.

The cold season lasts for 3.5 months, from December 4 to March 20, with an average daily high temperature below 55°F. The coldest month of the year in Itako is January, with an average low of 31°F and high of 48°F.

Average High and Low Temperature in Itako

Average High and Low Temperature in ItakowarmcoldcoldJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FJan 2048°FJan 2048°FAug 884°FAug 884°F30°F30°F73°F73°FJun 2977°FJun 2977°FSep 1877°FSep 1877°FDec 455°FDec 455°FMar 2055°FMar 2055°F66°F66°F66°F66°F38°F38°F40°F40°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 48°F49°F54°F63°F70°F74°F81°F84°F78°F69°F60°F52°F
Temp. 39°F40°F46°F55°F63°F68°F75°F77°F72°F62°F52°F43°F
Low 31°F33°F39°F48°F56°F63°F70°F72°F67°F56°F45°F35°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 Itako

Average Hourly Temperature in ItakoJanFebMarAprMayJunJulAugSepOctNovDec12 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 AMNowNowvery coldvery coldcoldcoldcoolcoolcomfortablewarmvery coldvery coldfreezing
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.

Chincoteague, Virginia, United States (6,848 miles away) and Lankaran, Azerbaijan (4,814 miles) are the far-away foreign places with temperatures most similar to Itako (view comparison).

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In Itako, 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 Itako begins around October 2 and lasts for 5.9 months, ending around March 30.

The clearest month of the year in Itako is December, during which on average the sky is clear, mostly clear, or partly cloudy 73% of the time.

The cloudier part of the year begins around March 30 and lasts for 6.1 months, ending around October 2.

The cloudiest month of the year in Itako is June, during which on average the sky is overcast or mostly cloudy 68% of the time.

Cloud Cover Categories in Itako

Cloud Cover Categories in ItakoclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Dec 2675%Dec 2675%Jun 2628%Jun 2628%Oct 251%Oct 251%Mar 3051%Mar 3051%NowNowclearmostly clearpartly cloudyovercast
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 29%36%45%52%58%68%66%53%53%43%35%27%
Clearer 71%64%55%48%42%32%34%47%47%57%65%73%

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

The wetter season lasts 7.1 months, from March 18 to October 21, with a greater than 30% chance of a given day being a wet day. The month with the most wet days in Itako is June, with an average of 13.1 days with at least 0.04 inches of precipitation.

The drier season lasts 4.9 months, from October 21 to March 18. The month with the fewest wet days in Itako is January, with an average of 4.8 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 Itako is June, with an average of 13.1 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 48% on June 23.

Daily Chance of Precipitation in Itako

Daily Chance of Precipitation in ItakowetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jun 2348%Jun 2348%Dec 2813%Dec 2813%Mar 1830%Mar 1830%Oct 2130%Oct 2130%NowNowrain
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 4.6d6.0d9.3d9.8d10.8d13.1d12.0d10.6d12.3d10.2d7.3d4.8d
Mixed 0.1d0.2d0.1d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d
Any 4.8d6.3d9.4d9.8d10.8d13.1d12.0d10.6d12.3d10.2d7.3d4.8d

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. Itako experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Itako. The month with the most rain in Itako is September, with an average rainfall of 7.3 inches.

The month with the least rain in Itako is January, with an average rainfall of 2.0 inches.

Average Monthly Rainfall in Itako

Average Monthly Rainfall in ItakoJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 in12 in12 in14 in14 inSep 277.6 inSep 277.6 inDec 291.8 inDec 291.8 inJun 226.0 inJun 226.0 inApr 74.4 inApr 74.4 inAug 24.3 inAug 24.3 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 2.0″2.6″3.9″4.4″4.6″5.8″5.0″4.8″7.3″6.2″3.4″2.0″

The length of the day in Itako varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 43 minutes of daylight; the longest day is June 21, with 14 hours, 36 minutes of daylight.

Hours of Daylight and Twilight in Itako

Hours of Daylight and Twilight in ItakoJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 8 minMar 2012 hr, 8 minMar 2014 hr, 36 minJun 2114 hr, 36 minJun 2112 hr, 9 minSep 2212 hr, 9 minSep 229 hr, 43 minDec 219 hr, 43 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 10.0h10.9h12.0h13.1h14.1h14.6h14.3h13.5h12.4h11.3h10.3h9.8h

The earliest sunrise is at 4:20 AM on June 12, and the latest sunrise is 2 hours, 28 minutes later at 6:48 AM on January 8. The earliest sunset is at 4:23 PM on December 5, and the latest sunset is 2 hours, 35 minutes later at 6:58 PM on June 28.

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

Sunrise & Sunset with Twilight in Itako

Sunrise & Sunset with Twilight in ItakoJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PMJun 124:20 AMJun 124:20 AM6:58 PMJun 286:58 PMJun 28Dec 54:23 PMDec 54:23 PM6:48 AMJan 86:48 AMJan 8daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
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 Itako

Solar Elevation and Azimuth in ItakoJanFebMarAprMayJunJulAugSepOctNovDec12 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 AM000010101010202020203030303040404050505060607000001010101020202020303030304040405050607078NowNow
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 Itako

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.

Itako experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 3.8 months, from June 8 to October 2, during which time the comfort level is muggy, oppressive, or miserable at least 23% of the time. The month with the most muggy days in Itako is August, with 28.2 days that are muggy or worse.

The least muggy day of the year is February 10, when muggy conditions are essentially unheard of.

Humidity Comfort Levels in Itako

Humidity Comfort Levels in ItakomuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Feb 100%Feb 100%93%Aug 793%Aug 7Jun 823%Jun 823%Oct 223%Oct 223%NowNowmiserablemiserableoppressiveoppressivedrydrycomfortablecomfortable
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 0.0d0.0d0.0d0.2d1.8d11.1d24.7d28.2d17.1d3.0d0.1d0.0d

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 Itako experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 5.9 months, from November 20 to May 15, with average wind speeds of more than 10.7 miles per hour. The windiest month of the year in Itako is February, with an average hourly wind speed of 12.3 miles per hour.

The calmer time of year lasts for 6.1 months, from May 15 to November 20. The calmest month of the year in Itako is July, with an average hourly wind speed of 9.3 miles per hour.

Average Wind Speed in Itako

Average Wind Speed in ItakowindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mph18 mph18 mph20 mph20 mphFeb 2912.4 mphFeb 2912.4 mphJul 289.1 mphJul 289.1 mphNov 2010.7 mphNov 2010.7 mphMay 1510.7 mphMay 1510.7 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) 12.012.312.311.810.79.69.39.410.510.610.611.4

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

The wind is most often from the south for 4.7 months, from April 10 to September 1, with a peak percentage of 51% on August 7. The wind is most often from the east for 1.1 months, from September 1 to October 4, with a peak percentage of 40% on September 8. The wind is most often from the north for 6.2 months, from October 4 to April 10, with a peak percentage of 46% on January 1.

Wind Direction in Itako

Wind Direction in ItakoNSENJanFebMarAprMayJunJulAugSepOctNovDec0%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).

Itako 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 2.6 months, from July 16 to October 3, with an average temperature above 72°F. The month of the year in Itako with the warmest water is August, with an average temperature of 76°F.

The time of year with cooler water lasts for 3.6 months, from January 3 to April 22, with an average temperature below 60°F. The month of the year in Itako with the coolest water is February, with an average temperature of 57°F.

Average Water Temperature in Itako

Average Water Temperature in ItakowarmcoolJanFebMarAprMayJunJulAugSepOctNovDec50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°FAug 2076°FAug 2076°F56°FFeb 2556°FFeb 25Jul 1672°FJul 1672°FOct 372°FOct 372°FJan 360°FJan 360°FApr 2260°FApr 2260°FNowNow
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature 59°F57°F57°F59°F64°F68°F72°F76°F75°F70°F66°F62°F

To characterize how pleasant the weather is in Itako 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 Itako for general outdoor tourist activities is from mid July to early October, with a peak score in the third week of August.

Tourism Score in Itako

Tourism Score in Itakobest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.56.50.10.1NowNowtemperaturetemperature 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 Itako for hot-weather activities is from late July to late August, with a peak score in the second week of August.

Beach/Pool Score in Itako

Beach/Pool Score in ItakoJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.26.20.00.0NowNowtemperaturetemperature 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 Itako typically lasts for 8.3 months (251 days), from around March 26 to around December 2, rarely starting before March 8 or after April 12, and rarely ending before November 13 or after December 20.

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

Time Spent in Various Temperature Bands and the Growing Season in Itakogrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Mar 2650%Mar 2650%Dec 250%Dec 290%Apr 1290%Apr 1290%Nov 1390%Nov 1310%Mar 810%Mar 810%Dec 2010%Dec 200%Jan 280%Jan 28Jul 23100%Jul 23100%very coldcoldcoolcomfortablewarmhot
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 Itako should appear around April 2, only rarely appearing before March 19 or after April 14.

Growing Degree Days in Itako

Growing Degree Days in ItakoJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°F2,500°F2,500°F3,000°F3,000°F3,500°F3,500°F4,000°F4,000°FApr 284°FApr 284°FJun 14900°FJun 14900°FJul 251,800°FJul 251,800°FDec 314,003°FDec 314,003°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 4.5 months, from April 12 to August 29, with an average daily incident shortwave energy per square meter above 5.3 kWh. The brightest month of the year in Itako is May, with an average of 5.9 kWh.

The darker period of the year lasts for 3.1 months, from November 1 to February 5, with an average daily incident shortwave energy per square meter below 3.2 kWh. The darkest month of the year in Itako is December, with an average of 2.6 kWh.

Average Daily Incident Shortwave Solar Energy in Itako

Average Daily Incident Shortwave Solar Energy in ItakobrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhMay 226.0 kWhMay 226.0 kWhDec 192.6 kWhDec 192.6 kWhApr 125.3 kWhApr 125.3 kWhAug 295.3 kWhAug 295.3 kWhNov 13.2 kWhNov 13.2 kWhFeb 53.2 kWhFeb 53.2 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) 2.83.54.45.45.95.75.85.74.63.62.92.6

For the purposes of this report, the geographical coordinates of Itako are 35.933 deg latitude, 140.550 deg longitude, and 0 ft elevation.

The topography within 2 miles of Itako contains only modest variations in elevation, with a maximum elevation change of 131 feet and an average elevation above sea level of 11 feet. Within 10 miles also contains only modest variations in elevation (328 feet). Within 50 miles contains only modest variations in elevation (2,976 feet).

The area within 2 miles of Itako is covered by cropland (57%), trees (18%), and water (14%), within 10 miles by cropland (41%) and water (28%), and within 50 miles by water (62%) and cropland (19%).

This report illustrates the typical weather in Itako, 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 2 weather stations near enough to contribute to our estimation of the temperature and dew point in Itako.

For each station, the records are corrected for the elevation difference between that station and Itako 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 Itako is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Itako and a given station.

The stations contributing to this reconstruction are:

To get a sense of how much these sources agree with each other, you can view a comparison of Itako 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.