1. WeatherSpark.com
  2. Japan

Climate and Average Weather Year Round at Shizuhama Ab Japan

At Shizuhama Ab, the summers are short, warm, oppressive, and mostly cloudy; the winters are cold, windy, and mostly clear; and it is wet year round. Over the course of the year, the temperature typically varies from 36°F to 86°F and is rarely below 30°F or above 91°F.

Based on the beach/pool score, the best time of year to visit Shizuhama Ab for hot-weather activities is from late July to early September.

Climate at Shizuhama Ab

coldcoolcomfortablewarmhotwarmcoolJanFebMarAprMayJunJulAugSepOctNovDecNowNow76%76%25%25%clearprecipitation: 8.8 inprecipitation: 8.8 in2.0 in2.0 inmuggy: 97%muggy: 97%0%0%drydrybeach/pool score: 6.5beach/pool score: 6.50.00.0
Shizuhama Ab weather by month. Click on each chart for more information.

The hot season lasts for 2.9 months, from June 25 to September 21, with an average daily high temperature above 79°F. The hottest month of the year at Shizuhama Ab is August, with an average high of 85°F and low of 75°F.

The cool season lasts for 3.3 months, from December 6 to March 17, with an average daily high temperature below 58°F. The coldest month of the year at Shizuhama Ab is January, with an average low of 37°F and high of 51°F.

Average High and Low Temperature at Shizuhama Ab

Average High and Low Temperature at Shizuhama AbhotcoolcoolJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FJan 2651°FJan 2651°FAug 886°FAug 886°F36°F36°F75°F75°FJun 2579°FJun 2579°FSep 2179°FSep 2179°FDec 658°FDec 658°FMar 1758°FMar 1758°F69°F69°F68°F68°F43°F43°F43°F43°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 51°F53°F58°F66°F72°F77°F83°F85°F80°F72°F64°F56°F
Temp. 43°F45°F50°F58°F66°F72°F78°F80°F75°F66°F57°F47°F
Low 37°F38°F44°F52°F60°F67°F73°F75°F70°F60°F50°F41°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 at Shizuhama Ab

Average Hourly Temperature at Shizuhama AbJanFebMarAprMayJunJulAugSepOctNovDec12 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 coldcoldcoldcoolcoolcomfortablewarmcomfortablevery coldvery cold
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.

Southern Shores, North Carolina, United States (7,075 miles away) and Langarūd, Iran (4,739 miles) are the far-away foreign places with temperatures most similar to Shizuhama Ab (view comparison).

Map
Marker
© OpenStreetMap contributors

Compare Shizuhama Ab to another city:

Map

At Shizuhama Ab, the average percentage of the sky covered by clouds experiences extreme seasonal variation over the course of the year.

The clearer part of the year at Shizuhama Ab begins around September 29 and lasts for 6.0 months, ending around March 28.

The clearest month of the year at Shizuhama Ab is December, during which on average the sky is clear, mostly clear, or partly cloudy 75% of the time.

The cloudier part of the year begins around March 28 and lasts for 6.0 months, ending around September 29.

The cloudiest month of the year at Shizuhama Ab is June, during which on average the sky is overcast or mostly cloudy 71% of the time.

Cloud Cover Categories at Shizuhama Ab

Cloud Cover Categories at Shizuhama AbclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Dec 1876%Dec 1876%Jun 2625%Jun 2625%Sep 2951%Sep 2951%Mar 2851%Mar 2851%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 27%35%46%53%59%71%67%53%52%42%35%25%
Clearer 73%65%54%47%41%29%33%47%48%58%65%75%

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

The wetter season lasts 7.1 months, from March 8 to October 11, with a greater than 32% chance of a given day being a wet day. The month with the most wet days at Shizuhama Ab is June, with an average of 13.3 days with at least 0.04 inches of precipitation.

The drier season lasts 4.9 months, from October 11 to March 8. The month with the fewest wet days at Shizuhama Ab is January, with an average of 5.1 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 at Shizuhama Ab is June, with an average of 13.3 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 50% on June 23.

Daily Chance of Precipitation at Shizuhama Ab

Daily Chance of Precipitation at Shizuhama AbwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jun 2350%Jun 2350%Dec 2714%Dec 2714%Mar 832%Mar 832%Oct 1132%Oct 1132%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 5.1d6.7d10.2d10.6d10.6d13.3d12.5d11.0d12.0d9.6d7.3d5.2d

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. Shizuhama Ab experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year at Shizuhama Ab. The month with the most rain at Shizuhama Ab is June, with an average rainfall of 8.3 inches.

The month with the least rain at Shizuhama Ab is December, with an average rainfall of 2.3 inches.

Average Monthly Rainfall at Shizuhama Ab

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 2.3″3.4″5.5″6.3″6.2″8.3″6.9″6.0″8.1″6.2″3.9″2.3″

The length of the day at Shizuhama Ab varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 49 minutes of daylight; the longest day is June 21, with 14 hours, 30 minutes of daylight.

Hours of Daylight and Twilight at Shizuhama Ab

Hours of Daylight and Twilight at Shizuhama AbJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 8 minMar 2012 hr, 8 minMar 2014 hr, 30 minJun 2114 hr, 30 minJun 2112 hr, 9 minSep 2212 hr, 9 minSep 229 hr, 49 minDec 219 hr, 49 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 10.1h10.9h12.0h13.1h14.0h14.5h14.2h13.4h12.4h11.3h10.4h9.9h

The earliest sunrise is at 4:32 AM on June 12, and the latest sunrise is 2 hours, 22 minutes later at 6:54 AM on January 8. The earliest sunset is at 4:35 PM on December 5, and the latest sunset is 2 hours, 29 minutes later at 7:04 PM on June 28.

Daylight saving time (DST) is not observed at Shizuhama Ab during 2024.

Sunrise & Sunset with Twilight at Shizuhama Ab

Sunrise & Sunset with Twilight at Shizuhama AbJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 124:32 AMJun 124:32 AM7:04 PMJun 287:04 PMJun 28Dec 54:35 PMDec 54:35 PM6:54 AMJan 86:54 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 at Shizuhama Ab

Solar Elevation and Azimuth at Shizuhama AbJanFebMarAprMayJunJulAugSepOctNovDec12 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 AM00001010101020202020303030304040405050506060700000101010102020202030303030404040505060703279NowNow
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 at Shizuhama Ab

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.

Shizuhama Ab experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 4.1 months, from June 1 to October 5, during which time the comfort level is muggy, oppressive, or miserable at least 24% of the time. The month with the most muggy days at Shizuhama Ab is August, with 29.7 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 at Shizuhama Ab

Humidity Comfort Levels at Shizuhama AbmuggyJanFebMarAprMayJunJulAugSepOctNovDec0%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%97%Aug 1197%Aug 11Jun 124%Jun 124%Oct 524%Oct 524%NowNowmiserablemiserableoppressiveoppressivedrydryhumidhumid
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 0.0d0.0d0.0d0.4d3.1d16.4d28.6d29.7d19.5d4.1d0.3d0.0d

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 at Shizuhama Ab experiences significant seasonal variation over the course of the year.

The windier part of the year lasts for 4.9 months, from November 18 to April 14, with average wind speeds of more than 10.6 miles per hour. The windiest month of the year at Shizuhama Ab is January, with an average hourly wind speed of 12.7 miles per hour.

The calmer time of year lasts for 7.1 months, from April 14 to November 18. The calmest month of the year at Shizuhama Ab is August, with an average hourly wind speed of 8.3 miles per hour.

Average Wind Speed at Shizuhama Ab

Average Wind Speed at Shizuhama AbwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mph18 mph18 mph20 mph20 mphJan 1712.9 mphJan 1712.9 mphAug 148.2 mphAug 148.2 mphNov 1810.6 mphNov 1810.6 mphApr 1410.6 mphApr 1410.6 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) 12.712.111.410.49.38.78.68.39.19.710.412.2

The predominant average hourly wind direction at Shizuhama Ab varies throughout the year.

The wind is most often from the east for 2.3 weeks, from May 26 to June 11 and for 2.4 months, from August 19 to November 1, with a peak percentage of 51% on October 4. The wind is most often from the west for 1.9 months, from June 11 to August 8 and for 6.8 months, from November 1 to May 26, with a peak percentage of 44% on July 8. The wind is most often from the south for 1.6 weeks, from August 8 to August 19, with a peak percentage of 33% on August 9.

Wind Direction at Shizuhama Ab

Wind Direction at Shizuhama AbWEWSEWJanFebMarAprMayJunJulAugSepOctNovDec0%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).

Shizuhama Ab 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 14 to October 1, with an average temperature above 76°F. The month of the year at Shizuhama Ab with the warmest water is August, with an average temperature of 79°F.

The time of year with cooler water lasts for 4.0 months, from December 24 to April 23, with an average temperature below 64°F. The month of the year at Shizuhama Ab with the coolest water is February, with an average temperature of 60°F.

Average Water Temperature at Shizuhama Ab

Average Water Temperature at Shizuhama AbwarmcoolJanFebMarAprMayJunJulAugSepOctNovDec55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°F85°F85°FAug 1980°FAug 1980°F60°FFeb 1560°FFeb 15Jul 1476°FJul 1476°FOct 176°FOct 176°FDec 2464°FDec 2464°FApr 2364°FApr 2364°FNowNow
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature 61°F60°F60°F63°F67°F71°F76°F79°F78°F74°F69°F65°F

To characterize how pleasant the weather is at Shizuhama Ab 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 Shizuhama Ab for general outdoor tourist activities is from late August to mid October, with a peak score in the last week of September.

Tourism Score at Shizuhama Ab

Tourism Score at Shizuhama Abbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.56.50.20.25.85.85.15.1NowNowtemperaturetemperature 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 Shizuhama Ab for hot-weather activities is from late July to early September, with a peak score in the second week of August.

Beach/Pool Score at Shizuhama Ab

Beach/Pool Score at Shizuhama Abbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.56.50.00.0NowNowtemperaturetemperaturecloudscloudsprecipitationprecipitationbeach/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 at Shizuhama Ab typically lasts for 9.7 months (296 days), from around March 2 to around December 23, rarely starting before February 9 or after March 22, and rarely ending before December 5 or after January 9.

Time Spent in Various Temperature Bands and the Growing Season at Shizuhama Ab

Time Spent in Various Temperature Bands and the Growing Season at Shizuhama Abgrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Mar 250%Mar 250%Dec 2350%Dec 2390%Mar 2290%Mar 2290%Dec 590%Dec 510%Feb 910%Feb 910%Jan 910%Jan 9Jul 30100%Jul 30100%NowNowvery 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 at Shizuhama Ab should appear around March 14, only rarely appearing before February 25 or after March 27.

Growing Degree Days at Shizuhama Ab

Growing Degree Days at Shizuhama AbJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°FMar 1479°FMar 1479°FMay 31900°FMay 31900°FJul 101,800°FJul 101,800°FDec 314,831°FDec 314,831°FNowNow
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 13 to August 30, with an average daily incident shortwave energy per square meter above 5.4 kWh. The brightest month of the year at Shizuhama Ab is July, with an average of 5.9 kWh.

The darker period of the year lasts for 3.2 months, from October 30 to February 5, with an average daily incident shortwave energy per square meter below 3.4 kWh. The darkest month of the year at Shizuhama Ab is December, with an average of 2.7 kWh.

Average Daily Incident Shortwave Solar Energy at Shizuhama Ab

Average Daily Incident Shortwave Solar Energy at Shizuhama AbbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhJul 206.0 kWhJul 206.0 kWhDec 102.7 kWhDec 102.7 kWhApr 135.4 kWhApr 135.4 kWhAug 305.4 kWhAug 305.4 kWhOct 303.4 kWhOct 303.4 kWhFeb 53.4 kWhFeb 53.4 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) 3.03.74.55.45.95.65.95.74.73.73.02.7

For the purposes of this report, the geographical coordinates of Shizuhama Ab are 34.813 deg latitude, 138.298 deg longitude, and -13 ft elevation.

The topography within 2 miles of Shizuhama Ab is essentially flat, with a maximum elevation change of 92 feet and an average elevation above sea level of 32 feet. Within 10 miles is essentially flat (1,654 feet). Within 50 miles contains very significant variations in elevation (12,365 feet).

The area within 2 miles of Shizuhama Ab is covered by cropland (75%) and water (21%), within 10 miles by water (60%) and trees (21%), and within 50 miles by water (58%) and trees (35%).

This report illustrates the typical weather at Shizuhama Ab, 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

Shizuhama Ab has a weather station that reported reliably enough during the analysis period that we have included it in our network. When available, historical temperature and dew point measurements are taken directly from this weather station. These records are obtained from NOAA's Integrated Surface Hourly data set, falling back on ICAO METAR records as required.

In the case of missing or erroneous measurements from this station, we fall back on records from nearby stations, adjusted according to typical seasonal and diurnal intra-station differences. For a given day of the year and hour of the day, the fallback station is selected to minimize the prediction error over the years for which there are measurements for both stations.

The stations on which we may fall back include but are not limited to Hamamatsu Ab, Atsugi United States Naval Air Station, Yokota Air Base, Yokosuka Fwf, Chūbu Centrair International Airport, Iruma Ab, Tateyama Ab, and Tokyo International Airport.

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.