1. WeatherSpark.com
  2. Ukraine
  3. Donetsk

Climate and Average Weather Year Round in Donetsk Ukraine

In Donetsk, the summers are warm and partly cloudy and the winters are long, freezing, snowy, windy, and mostly cloudy. Over the course of the year, the temperature typically varies from 18°F to 82°F and is rarely below 0°F or above 93°F.

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

Climate in Donetsk

freezingcoldcoolwarmcoolcoldvery coldJanFebMarAprMayJunJulAugSepOctNovDecNowNow77%77%27%27%clearovercastprecipitation: 1.8 inprecipitation: 1.8 in0.9 in0.9 inmuggy: 5%muggy: 5%0%0%drydrytourism score: 7.5tourism score: 7.50.00.0
Donetsk weather by month. Click on each chart for more information.

The warm season lasts for 3.5 months, from May 23 to September 8, with an average daily high temperature above 72°F. The hottest month of the year in Donetsk is July, with an average high of 81°F and low of 61°F.

The cold season lasts for 3.8 months, from November 17 to March 11, with an average daily high temperature below 40°F. The coldest month of the year in Donetsk is January, with an average low of 20°F and high of 29°F.

Average High and Low Temperature in Donetsk

Average High and Low Temperature in DonetskwarmcoldcoldJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FFeb 329°FFeb 329°FJul 2882°FJul 2882°F18°F18°F62°F62°FMay 2372°FMay 2372°FSep 872°FSep 872°FNov 1740°FNov 1740°FMar 1140°FMar 1140°F53°F53°F52°F52°F30°F30°F27°F27°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 29°F31°F42°F58°F70°F77°F81°F80°F69°F55°F40°F32°F
Temp. 25°F25°F35°F50°F61°F68°F72°F70°F60°F48°F36°F28°F
Low 20°F20°F29°F41°F51°F58°F61°F59°F50°F40°F30°F23°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 Donetsk

Average Hourly Temperature in DonetskJanFebMarAprMayJunJulAugSepOctNovDec12 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 coldcoldcoldcoolcomfortablewarmcomfortablevery 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.

Kent City, Michigan, United States (5,266 miles away) is the far-away foreign place with temperatures most similar to Donetsk (view comparison).

Map
Marker
© OpenStreetMap contributors

Compare Donetsk to another city:

Map

In Donetsk, 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 Donetsk begins around May 1 and lasts for 5.4 months, ending around October 14.

The clearest month of the year in Donetsk is July, 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 October 14 and lasts for 6.6 months, ending around May 1.

The cloudiest month of the year in Donetsk is January, during which on average the sky is overcast or mostly cloudy 72% of the time.

Cloud Cover Categories in Donetsk

Cloud Cover Categories in DonetskclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Aug 377%Aug 377%Dec 2827%Dec 2827%May 152%May 152%Oct 1452%Oct 1452%NowNowclearpartly cloudymostly cloudyovercastmostly clear
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 72%70%62%55%45%38%25%27%38%50%64%71%
Clearer 28%30%38%45%55%62%75%73%62%50%36%29%

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

The wetter season lasts 7.5 months, from November 29 to July 14, with a greater than 19% chance of a given day being a wet day. The month with the most wet days in Donetsk is June, with an average of 7.4 days with at least 0.04 inches of precipitation.

The drier season lasts 4.5 months, from July 14 to November 29. The month with the fewest wet days in Donetsk is August, with an average of 4.4 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. Based on this categorization, the most common form of precipitation in Donetsk changes throughout the year.

Rain alone is the most common for 11 months, from February 12 to January 10. The month with the most days of rain alone in Donetsk is June, with an average of 7.4 days.

Snow alone is the most common for 1.1 months, from January 10 to February 12. The month with the most days of snow alone in Donetsk is January, with an average of 2.1 days.

Daily Chance of Precipitation in Donetsk

Daily Chance of Precipitation in DonetsksnowrainJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jun 1326%Jun 1326%Aug 1513%Aug 1513%Jan 1019%Jan 1019%Nov 2919%Nov 2919%Jul 1419%Jul 1419%NowNowsnowrain
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 2.1d2.0d3.3d5.3d6.4d7.4d5.8d4.4d4.7d4.6d4.0d2.9d
Mixed 1.4d1.0d0.9d0.2d0.0d0.0d0.0d0.0d0.0d0.1d0.7d1.2d
Snow 2.1d1.9d1.1d0.1d0.0d0.0d0.0d0.0d0.0d0.0d0.6d1.9d
Any 5.6d5.0d5.2d5.5d6.4d7.4d5.8d4.4d4.7d4.8d5.3d6.0d

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. Donetsk experiences some seasonal variation in monthly rainfall.

Rain falls throughout the year in Donetsk. The month with the most rain in Donetsk is June, with an average rainfall of 1.8 inches.

The month with the least rain in Donetsk is February, with an average rainfall of 0.5 inches.

Average Monthly Rainfall in Donetsk

Average Monthly Rainfall in DonetskJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 inJun 191.8 inJun 191.8 inFeb 110.5 inFeb 110.5 inSep 51.2 inSep 51.2 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 0.6″0.5″0.6″1.1″1.3″1.8″1.4″1.1″1.1″1.1″1.0″0.7″

Snowfall

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

The snowy period of the year lasts for 4.9 months, from November 3 to March 31, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Donetsk is January, with an average snowfall of 4.9 inches.

The snowless period of the year lasts for 7.1 months, from March 31 to November 3. The least snow falls around July 14, with an average total accumulation of 0.0 inches.

Average Monthly Snowfall in Donetsk

Average Monthly Snowfall in DonetsksnowsnowJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 in12 in12 inJan 245.0 inJan 245.0 inJul 140.0 inJul 140.0 inNov 31.0 inNov 31.0 inMar 311.0 inMar 311.0 in
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 4.9″4.5″2.3″0.3″0.0″0.0″0.0″0.0″0.0″0.2″1.9″4.5″

The length of the day in Donetsk varies extremely over the course of the year. In 2024, the shortest day is December 21, with 8 hours, 22 minutes of daylight; the longest day is June 20, with 16 hours, 3 minutes of daylight.

Hours of Daylight and Twilight in Donetsk

Hours of Daylight and Twilight in DonetskJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 7 minMar 2012 hr, 7 minMar 2016 hr, 3 minJun 2016 hr, 3 minJun 2012 hr, 10 minSep 2212 hr, 10 minSep 228 hr, 22 minDec 218 hr, 22 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 8.9h10.2h11.9h13.7h15.2h16.0h15.6h14.2h12.5h10.8h9.3h8.4h

The earliest sunrise is at 4:28 AM on June 16, and the latest sunrise is 2 hours, 50 minutes later at 7:18 AM on January 2. The earliest sunset is at 3:35 PM on December 10, and the latest sunset is 4 hours, 57 minutes later at 8:32 PM on June 25.

Daylight saving time (DST) is observed in Donetsk during 2024, starting in the spring on March 31, lasting 6.9 months, and ending in the fall on October 27.

Sunrise & Sunset with Twilight and Daylight Saving Time in Donetsk

Sunrise & Sunset with Twilight and Daylight Saving Time in DonetskJanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 164:28 AMJun 164:28 AM8:32 PMJun 258:32 PMJun 25Dec 103:35 PMDec 103:35 PM7:18 AMJan 27:18 AMJan 2Mar 31DSTMar 31DSTDSTOct 27DSTOct 27daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
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 transitions to and from daylight saving time are indicated by the 'DST' labels.

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 Donetsk

Solar Elevation and Azimuth in DonetskJanFebMarAprMayJunJulAugSepOctNovDec12 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 AM0000101010202030304040506000010101010202020303040405050601965NowNow
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 Donetsk

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.

The perceived humidity level in Donetsk, as measured by the percentage of time in which the humidity comfort level is muggy, oppressive, or miserable, does not vary significantly over the course of the year, staying within 2% of 2% throughout.

Humidity Comfort Levels in Donetsk

Humidity Comfort Levels in DonetskJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Mar 10%Mar 10%Jul 115%Jul 115%comfortablecomfortabledrydryhumidhumid
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 0.0d0.0d0.0d0.0d0.0d0.8d1.4d0.7d0.1d0.0d0.0d0.0d

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

The windier part of the year lasts for 5.0 months, from November 13 to April 13, with average wind speeds of more than 10.5 miles per hour. The windiest month of the year in Donetsk is February, with an average hourly wind speed of 12.3 miles per hour.

The calmer time of year lasts for 7.0 months, from April 13 to November 13. The calmest month of the year in Donetsk is July, with an average hourly wind speed of 8.5 miles per hour.

Average Wind Speed in Donetsk

Average Wind Speed in DonetskwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mph18 mph18 mph20 mph20 mphFeb 212.5 mphFeb 212.5 mphJun 198.5 mphJun 198.5 mphNov 1310.5 mphNov 1310.5 mphApr 1310.5 mphApr 1310.5 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) 11.612.312.010.38.98.68.58.79.610.210.711.2

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

The wind is most often from the east for 4.8 months, from January 26 to June 19 and for 5.5 months, from July 8 to December 22, with a peak percentage of 40% on March 22. The wind is most often from the west for 1.3 weeks, from June 19 to June 28 and for 1.1 months, from December 22 to January 26, with a peak percentage of 30% on June 26. The wind is most often from the north for 1.4 weeks, from June 28 to July 8, with a peak percentage of 30% on July 7.

Wind Direction in Donetsk

Wind Direction in DonetskWEEJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwesteastnorthsouth
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).

To characterize how pleasant the weather is in Donetsk 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 Donetsk for general outdoor tourist activities is from early June to early September, with a peak score in the first week of August.

Tourism Score in Donetsk

Tourism Score in Donetskbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.57.50.00.0NowNowtemperaturetemperature 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 Donetsk for hot-weather activities is from early July to mid August, with a peak score in the last week of July.

Beach/Pool Score in Donetsk

Beach/Pool Score in DonetskJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.56.50.00.0NowNowtemperaturetemperature 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 Donetsk typically lasts for 6.2 months (189 days), from around April 11 to around October 17, rarely starting before March 21 or after May 4, and rarely ending before September 26 or after November 7.

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

Time Spent in Various Temperature Bands and the Growing Season in Donetskgrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Apr 1150%Apr 1150%Oct 1750%Oct 1790%May 490%May 490%Sep 2690%Sep 2610%Mar 2110%Mar 2110%Nov 710%Nov 70%Dec 170%Dec 17Jul 14100%Jul 14100%frigidfreezingvery coldcoolcomfortablewarmhotcold
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 Donetsk should appear around April 23, only rarely appearing before April 13 or after May 4.

Growing Degree Days in Donetsk

Growing Degree Days in DonetskJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°F2,500°F2,500°F3,000°F3,000°FApr 2390°FApr 2390°FJun 24900°FJun 24900°FAug 51,800°FAug 51,800°FDec 312,720°FDec 312,720°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 extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 3.6 months, from May 4 to August 22, with an average daily incident shortwave energy per square meter above 5.7 kWh. The brightest month of the year in Donetsk is July, with an average of 6.7 kWh.

The darker period of the year lasts for 3.6 months, from October 28 to February 17, with an average daily incident shortwave energy per square meter below 2.1 kWh. The darkest month of the year in Donetsk is December, with an average of 1.0 kWh.

Average Daily Incident Shortwave Solar Energy in Donetsk

Average Daily Incident Shortwave Solar Energy in DonetskbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhJul 76.8 kWhJul 76.8 kWhDec 190.9 kWhDec 190.9 kWhMay 45.7 kWhMay 45.7 kWhAug 225.7 kWhAug 225.7 kWhOct 282.1 kWhOct 282.1 kWhFeb 172.1 kWhFeb 172.1 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) 1.22.13.44.76.16.66.75.94.42.71.41.0

For the purposes of this report, the geographical coordinates of Donetsk are 48.023 deg latitude, 37.802 deg longitude, and 732 ft elevation.

The topography within 2 miles of Donetsk contains only modest variations in elevation, with a maximum elevation change of 417 feet and an average elevation above sea level of 629 feet. Within 10 miles contains only modest variations in elevation (666 feet). Within 50 miles contains significant variations in elevation (1,243 feet).

The area within 2 miles of Donetsk is covered by artificial surfaces (88%), within 10 miles by artificial surfaces (37%) and cropland (33%), and within 50 miles by cropland (70%) and trees (13%).

This report illustrates the typical weather in Donetsk, 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 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Donetsk.

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