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Climate and Average Weather Year Round in Jiulong China

In Jiulong, the summers are warm, oppressive, wet, and mostly cloudy; the winters are very cold and partly cloudy; and it is windy year round. Over the course of the year, the temperature typically varies from 34°F to 88°F and is rarely below 27°F or above 94°F.

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

Climate in Jiulong

coldcoolwarmhotwarmcoolcoldJanFebMarAprMayJunJulAugSepOctNovDecNowNow71%71%27%27%clearovercastprecipitation: 7.0 inprecipitation: 7.0 in1.3 in1.3 inmuggy: 100%muggy: 100%0%0%drydrytourism score: 7.5tourism score: 7.50.10.1
Jiulong weather by month. Click on each chart for more information.

The hot season lasts for 3.0 months, from June 16 to September 15, with an average daily high temperature above 79°F. The hottest month of the year in Jiulong is July, with an average high of 87°F and low of 76°F.

The cool season lasts for 3.3 months, from December 5 to March 13, with an average daily high temperature below 53°F. The coldest month of the year in Jiulong is January, with an average low of 34°F and high of 45°F.

Average High and Low Temperature in Jiulong

Average High and Low Temperature in JiulonghotcoolcoolJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FJan 2044°FJan 2044°FJul 2888°FJul 2888°F34°F34°F78°F78°FJun 1679°FJun 1679°FSep 1579°FSep 1579°FDec 553°FDec 553°FMar 1353°FMar 1353°F70°F70°F70°F70°F41°F41°F42°F42°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 45°F47°F54°F64°F73°F79°F87°F86°F79°F71°F61°F50°F
Temp. 39°F42°F48°F57°F67°F74°F81°F81°F75°F66°F55°F44°F
Low 34°F37°F43°F52°F62°F69°F76°F77°F70°F60°F49°F38°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 Jiulong

Average Hourly Temperature in JiulongJanFebMarAprMayJunJulAugSepOctNovDec12 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 coldcoldcoldcoolcoolwarmhotcomfortablevery coldcomfortablevery 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.

Cape Charles, Virginia, United States (7,533 miles away) and Baku, Azerbaijan (3,938 miles) are the far-away foreign places with temperatures most similar to Jiulong (view comparison).

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In Jiulong, 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 Jiulong begins around August 26 and lasts for 6.6 months, ending around March 13.

The clearest month of the year in Jiulong is December, during which on average the sky is clear, mostly clear, or partly cloudy 70% of the time.

The cloudier part of the year begins around March 13 and lasts for 5.4 months, ending around August 26.

The cloudiest month of the year in Jiulong is July, during which on average the sky is overcast or mostly cloudy 67% of the time.

Cloud Cover Categories in Jiulong

Cloud Cover Categories in JiulongclearerclearercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Dec 1271%Dec 1271%Jul 427%Jul 427%Aug 2649%Aug 2649%Mar 1349%Mar 1349%NowNowclearmostly clearpartly cloudymostly 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 37%43%52%55%54%64%67%52%41%32%32%30%
Clearer 63%57%48%45%46%36%33%48%59%68%68%70%

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

The wetter season lasts 6.0 months, from March 6 to September 7, with a greater than 31% chance of a given day being a wet day. The month with the most wet days in Jiulong is June, with an average of 11.8 days with at least 0.04 inches of precipitation.

The drier season lasts 6.0 months, from September 7 to March 6. The month with the fewest wet days in Jiulong is December, with an average of 4.1 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 in Jiulong is June, 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 49% on July 1.

Daily Chance of Precipitation in Jiulong

Daily Chance of Precipitation in JiulongwetdrydryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jul 149%Jul 149%Dec 1712%Dec 1712%Mar 631%Mar 631%Sep 731%Sep 731%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 5.1d6.7d9.6d8.6d8.6d11.8d11.9d10.4d7.9d5.4d5.3d4.1d
Mixed 0.1d0.2d0.1d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d
Any 5.3d6.9d9.7d8.6d8.6d11.8d11.9d10.4d7.9d5.4d5.3d4.1d

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. Jiulong experiences extreme seasonal variation in monthly rainfall.

Rain falls throughout the year in Jiulong. The month with the most rain in Jiulong is June, with an average rainfall of 6.3 inches.

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

Average Monthly Rainfall in Jiulong

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 1.6″2.1″3.0″2.9″3.4″6.3″5.0″4.1″3.5″2.0″1.9″1.3″

The length of the day in Jiulong varies significantly over the course of the year. In 2024, the shortest day is December 21, with 10 hours, 4 minutes of daylight; the longest day is June 21, with 14 hours, 14 minutes of daylight.

Hours of Daylight and Twilight in Jiulong

Hours of Daylight and Twilight in JiulongJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 6 minMar 2012 hr, 6 minMar 2014 hr, 14 minJun 2114 hr, 14 minJun 2112 hr, 8 minSep 2212 hr, 8 minSep 2210 hr, 4 minDec 2110 hr, 4 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 10.3h11.1h12.0h13.0h13.8h14.2h14.0h13.3h12.3h11.4h10.5h10.1h

The earliest sunrise is at 4:47 AM on June 11, and the latest sunrise is 2 hours, 8 minutes later at 6:54 AM on January 9. The earliest sunset is at 4:49 PM on December 3, and the latest sunset is 2 hours, 14 minutes later at 7:03 PM on June 29.

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

Sunrise & Sunset with Twilight in Jiulong

Sunrise & Sunset with Twilight in JiulongJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 114:47 AMJun 114:47 AM7:03 PMJun 297:03 PMJun 29Dec 34:49 PMDec 34:49 PM6:54 AMJan 96:54 AMJan 9daynightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
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 Jiulong

Solar Elevation and Azimuth in JiulongJanFebMarAprMayJunJulAugSepOctNovDec12 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 AM000010101010202020203030303040404050505060607080000010101010202020203030303040404050506060707035NowNow
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 Jiulong

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.

Jiulong experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 4.5 months, from May 22 to October 6, during which time the comfort level is muggy, oppressive, or miserable at least 25% of the time. The month with the most muggy days in Jiulong is July, with 30.5 days that are muggy or worse.

The least muggy day of the year is January 31, when muggy conditions are essentially unheard of.

Humidity Comfort Levels in Jiulong

Humidity Comfort Levels in JiulongmuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jan 310%Jan 310%100%Jul 23100%Jul 23May 2225%May 2225%Oct 625%Oct 625%NowNowmiserablemiserableoppressiveoppressivedrydrymuggymuggyhumidhumidcomfortablecomfortable
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 0.0d0.0d0.0d0.8d6.5d21.5d30.5d30.0d18.4d4.6d0.6d0.0d

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 Jiulong experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 6.5 months, from October 28 to May 13, with average wind speeds of more than 11.5 miles per hour. The windiest month of the year in Jiulong is March, with an average hourly wind speed of 12.2 miles per hour.

The calmer time of year lasts for 5.5 months, from May 13 to October 28. The calmest month of the year in Jiulong is June, with an average hourly wind speed of 10.7 miles per hour.

Average Wind Speed in Jiulong

Average Wind Speed in JiulongwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mph18 mph18 mph20 mph20 mphMar 812.5 mphMar 812.5 mphJun 2210.6 mphJun 2210.6 mphOct 2811.5 mphOct 2811.5 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) 12.012.112.211.811.510.711.011.411.911.612.012.2

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

The wind is most often from the east for 5.0 days, from April 4 to April 9; for 1.1 months, from May 21 to June 24; and for 1.5 months, from August 9 to September 24, with a peak percentage of 44% on September 12. The wind is most often from the south for 1.4 months, from April 9 to May 21 and for 1.5 months, from June 24 to August 9, with a peak percentage of 52% on July 21. The wind is most often from the north for 6.3 months, from September 24 to April 4, with a peak percentage of 52% on January 1.

Wind Direction in Jiulong

Wind Direction in JiulongNSESENJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowsoutheastnorthwest
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).

Jiulong 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 3.3 months, from June 27 to October 4, with an average temperature above 73°F. The month of the year in Jiulong with the warmest water is August, with an average temperature of 80°F.

The time of year with cooler water lasts for 3.4 months, from December 23 to April 4, with an average temperature below 51°F. The month of the year in Jiulong with the coolest water is February, with an average temperature of 44°F.

Average Water Temperature in Jiulong

Average Water Temperature in JiulongwarmcoolJanFebMarAprMayJunJulAugSepOctNovDec40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°FAug 1180°FAug 1180°F44°FFeb 1144°FFeb 11Jun 2773°FJun 2773°FOct 473°FOct 473°FDec 2351°FDec 2351°FApr 451°FApr 451°FNowNow
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature 46°F44°F47°F54°F63°F70°F77°F80°F77°F70°F62°F53°F

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

Tourism Score in Jiulong

Tourism Score in JiulongJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.57.50.10.16.66.64.04.0NowNowtemperaturetemperature precipitationprecipitationtourism 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 Jiulong for hot-weather activities is from late July to mid September, with a peak score in the last week of August.

Beach/Pool Score in Jiulong

Beach/Pool Score in Jiulongbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.36.30.00.0NowNowtemperaturetemperature precipitationprecipitationbeach/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 Jiulong typically lasts for 9.5 months (286 days), from around February 25 to around December 7, rarely starting before February 3 or after March 20, and rarely ending before November 18 or after December 26.

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

Time Spent in Various Temperature Bands and the Growing Season in Jiulonggrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Feb 2550%Feb 2550%Dec 750%Dec 790%Mar 2090%Mar 2090%Nov 1890%Nov 1810%Feb 310%Feb 310%Dec 2610%Dec 260%Jan 150%Jan 15Jul 22100%Jul 22100%NowNowvery coldcoldcoolwarmhotcomfortable
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 Jiulong should appear around March 27, only rarely appearing before March 11 or after April 13.

Growing Degree Days in Jiulong

Growing Degree Days in JiulongJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°FMar 2775°FMar 2775°FJun 3900°FJun 3900°FDec 314,871°FDec 314,871°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 2.0 months, from April 17 to June 19, with an average daily incident shortwave energy per square meter above 5.5 kWh. The brightest month of the year in Jiulong is May, with an average of 6.0 kWh.

The darker period of the year lasts for 3.0 months, from November 6 to February 7, with an average daily incident shortwave energy per square meter below 3.5 kWh. The darkest month of the year in Jiulong is December, with an average of 2.9 kWh.

Average Daily Incident Shortwave Solar Energy in Jiulong

Average Daily Incident Shortwave Solar Energy in JiulongbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWhMay 216.1 kWhMay 216.1 kWhJan 32.8 kWhJan 32.8 kWhNov 63.5 kWhNov 63.5 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) 3.03.64.45.46.05.65.35.55.04.23.22.9

For the purposes of this report, the geographical coordinates of Jiulong are 31.908 deg latitude, 121.571 deg longitude, and 16 ft elevation.

The topography within 2 miles of Jiulong is essentially flat, with a maximum elevation change of 30 feet and an average elevation above sea level of 13 feet. Within 10 miles is also essentially flat (52 feet). Within 50 miles is essentially flat (400 feet).

The area within 2 miles of Jiulong is covered by cropland (97%), within 10 miles by cropland (90%), and within 50 miles by water (62%) and cropland (29%).

This report illustrates the typical weather in Jiulong, 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 Jiulong.

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