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Climate and Average Weather Year Round in Voronezh Russia

In Voronezh, the summers are warm and partly cloudy and the winters are long, freezing, snowy, windy, and overcast. Over the course of the year, the temperature typically varies from 12°F to 79°F and is rarely below -9°F or above 90°F.

Based on the tourism score, the best time of year to visit Voronezh for warm-weather activities is from mid June to late August.

Climate in Voronezh

freezingcoolcomfortablewarmcoolcoldfreezingJanFebMarAprMayJunJulAugSepOctNovDecNowNow68%68%24%24%overcastclearprecipitation: 1.9 inprecipitation: 1.9 in0.8 in0.8 inmuggy: 2%muggy: 2%0%0%drydrytourism score: 7.2tourism score: 7.20.00.0
Voronezh weather by month. Click on each chart for more information.

The warm season lasts for 3.7 months, from May 15 to September 6, with an average daily high temperature above 68°F. The hottest month of the year in Voronezh is July, with an average high of 78°F and low of 59°F.

The cold season lasts for 3.9 months, from November 16 to March 14, with an average daily high temperature below 35°F. The coldest month of the year in Voronezh is January, with an average low of 14°F and high of 25°F.

Average High and Low Temperature in Voronezh

Average High and Low Temperature in VoronezhwarmcoldcoldJanFebMarAprMayJunJulAugSepOctNovDec-10°F-10°F0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FFeb 424°FFeb 424°FJul 2679°FJul 2679°F12°F12°F59°F59°FMay 1568°FMay 1568°FSep 668°FSep 668°FNov 1635°FNov 1635°FMar 1435°FMar 1435°F47°F47°F49°F49°F26°F26°F21°F21°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 25°F26°F37°F55°F68°F75°F78°F76°F64°F50°F36°F28°F
Temp. 20°F20°F30°F47°F59°F65°F69°F67°F56°F44°F31°F23°F
Low 14°F14°F23°F37°F48°F55°F59°F55°F46°F36°F26°F18°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 Voronezh

Average Hourly Temperature in VoronezhJanFebMarAprMayJunJulAugSepOctNovDec12 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 coldcoldcoldcoolcomfortablewarmvery coldcomfortable
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.

Edgar, Wisconsin, United States (5,114 miles away) and Ottawa, Canada (4,700 miles) are the far-away foreign places with temperatures most similar to Voronezh (view comparison).

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In Voronezh, 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 Voronezh begins around April 15 and lasts for 5.8 months, ending around October 9.

The clearest month of the year in Voronezh is August, during which on average the sky is clear, mostly clear, or partly cloudy 65% of the time.

The cloudier part of the year begins around October 9 and lasts for 6.2 months, ending around April 15.

The cloudiest month of the year in Voronezh is February, during which on average the sky is overcast or mostly cloudy 75% of the time.

Cloud Cover Categories in Voronezh

Cloud Cover Categories in VoronezhclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Aug 268%Aug 268%Feb 624%Feb 624%Apr 1546%Apr 1546%Oct 946%Oct 946%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 75%75%65%54%46%43%36%35%46%56%68%73%
Clearer 25%25%35%46%54%57%64%65%54%44%32%27%

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

The wetter season lasts 3.7 months, from June 1 to September 21, with a greater than 23% chance of a given day being a wet day. The month with the most wet days in Voronezh is June, with an average of 8.0 days with at least 0.04 inches of precipitation.

The drier season lasts 8.3 months, from September 21 to June 1. The month with the fewest wet days in Voronezh is March, with an average of 5.2 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 Voronezh changes throughout the year.

Rain alone is the most common for 9.1 months, from March 2 to December 5. The month with the most days of rain alone in Voronezh is June, with an average of 8.0 days.

Snow alone is the most common for 2.9 months, from December 5 to March 2. The month with the most days of snow alone in Voronezh is January, with an average of 3.2 days.

Daily Chance of Precipitation in Voronezh

Daily Chance of Precipitation in VoronezhsnowrainsnowJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jun 2629%Jun 2629%Mar 2216%Mar 2216%Dec 518%Dec 518%Sep 2123%Sep 2123%NowNowsnowrainmixed
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 1.1d1.4d3.0d5.5d6.3d8.0d7.2d6.1d6.7d5.9d3.5d1.8d
Mixed 1.5d0.9d0.9d0.3d0.0d0.0d0.0d0.0d0.0d0.3d1.1d1.2d
Snow 3.2d2.8d1.3d0.1d0.0d0.0d0.0d0.0d0.0d0.1d1.3d2.4d
Any 5.8d5.1d5.2d5.9d6.3d8.0d7.2d6.1d6.7d6.3d5.8d5.4d

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. Voronezh experiences some seasonal variation in monthly rainfall.

The rainy period of the year lasts for 9.1 months, from March 12 to December 15, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Voronezh is June, with an average rainfall of 1.8 inches.

The rainless period of the year lasts for 2.9 months, from December 15 to March 12. The month with the least rain in Voronezh is February, with an average rainfall of 0.3 inches.

Average Monthly Rainfall in Voronezh

Average Monthly Rainfall in VoronezhrainJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 in7 in7 inJun 251.9 inJun 251.9 inJan 290.3 inJan 290.3 inSep 121.6 inSep 121.6 inMar 120.5 inMar 120.5 inDec 150.5 inDec 150.5 in
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 0.3″0.3″0.6″1.2″1.3″1.8″1.7″1.4″1.6″1.4″0.9″0.5″

Snowfall

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

The snowy period of the year lasts for 5.5 months, from October 21 to April 5, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Voronezh is January, with an average snowfall of 6.3 inches.

The snowless period of the year lasts for 6.5 months, from April 5 to October 21. The least snow falls around July 14, with an average total accumulation of 0.0 inches.

Average Monthly Snowfall in Voronezh

Average Monthly Snowfall in VoronezhsnowsnowJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 in12 in12 in14 in14 inJan 106.3 inJan 106.3 inJul 140.0 inJul 140.0 inOct 211.0 inOct 211.0 inApr 51.0 inApr 51.0 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 6.3″5.3″2.6″0.4″0.0″0.0″0.0″0.0″0.0″0.6″3.4″5.2″

The length of the day in Voronezh varies extremely over the course of the year. In 2024, the shortest day is December 21, with 7 hours, 48 minutes of daylight; the longest day is June 20, with 16 hours, 40 minutes of daylight.

Hours of Daylight and Twilight in Voronezh

Hours of Daylight and Twilight in VoronezhJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 8 minMar 2012 hr, 8 minMar 2016 hr, 40 minJun 2016 hr, 40 minJun 2012 hr, 11 minSep 2212 hr, 11 minSep 227 hr, 48 minDec 217 hr, 48 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 8.4h10.0h11.9h13.9h15.7h16.6h16.1h14.5h12.6h10.6h8.8h7.9h

The earliest sunrise is at 4:04 AM on June 17, and the latest sunrise is 4 hours, 25 minutes later at 8:29 AM on December 30. The earliest sunset is at 4:13 PM on December 12, and the latest sunset is 4 hours, 32 minutes later at 8:45 PM on June 24.

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

Sunrise & Sunset with Twilight in Voronezh

Sunrise & Sunset with Twilight in VoronezhJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 174:04 AMJun 174:04 AM8:45 PMJun 248:45 PMJun 24Dec 124:13 PMDec 124:13 PM8:29 AMDec 308:29 AMDec 30daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
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 Voronezh

Solar Elevation and Azimuth in VoronezhJanFebMarAprMayJunJulAugSepOctNovDec12 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 AM0000101010102020203030404050000010101010202020303030404050601562NowNow
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 Voronezh

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 Voronezh, 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 1% of 1% throughout.

Humidity Comfort Levels in Voronezh

Humidity Comfort Levels in VoronezhJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Mar 50%Mar 50%Jul 102%Jul 102%NowNowcomfortablecomfortabledrydryhumidhumid
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 0.0d0.0d0.0d0.0d0.0d0.4d0.7d0.2d0.0d0.0d0.0d0.0d

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

The windier part of the year lasts for 5.8 months, from October 18 to April 12, with average wind speeds of more than 10.2 miles per hour. The windiest month of the year in Voronezh is February, with an average hourly wind speed of 11.9 miles per hour.

The calmer time of year lasts for 6.2 months, from April 12 to October 18. The calmest month of the year in Voronezh is July, with an average hourly wind speed of 8.2 miles per hour.

Average Wind Speed in Voronezh

Average Wind Speed in VoronezhwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mph18 mph18 mphFeb 812.3 mphFeb 812.3 mphJul 288.0 mphJul 288.0 mphOct 1810.2 mphOct 1810.2 mphApr 1210.2 mphApr 1210.2 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) 11.511.911.310.09.08.68.28.69.510.110.411.0

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

The wind is most often from the south for 3.4 weeks, from February 10 to March 5; for 1.0 months, from March 12 to April 13; for 2.3 weeks, from April 30 to May 16; and for 2.6 weeks, from November 17 to December 5, with a peak percentage of 34% on November 29. The wind is most often from the west for 1.0 weeks, from March 5 to March 12; for 1.3 months, from May 24 to July 2; for 2.9 months, from August 19 to November 17; and for 2.2 months, from December 5 to February 10, with a peak percentage of 37% on October 25. The wind is most often from the north for 1.5 months, from July 2 to August 19, with a peak percentage of 35% on August 9.

Wind Direction in Voronezh

Wind Direction in VoronezhWSSESWNWSWJanFebMarAprMayJunJulAugSepOctNovDec0%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).

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

Tourism Score in Voronezh

Tourism Score in Voronezhbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.27.20.00.0NowNowtemperaturetemperature 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 Voronezh 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 Voronezh

Beach/Pool Score in VoronezhJanFebMarAprMayJunJulAugSepOctNovDec002244668810105.25.20.00.0NowNowtemperaturetemperature cloudscloudsprecipitationprecipitation
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 Voronezh typically lasts for 5.5 months (165 days), from around April 24 to around October 6, rarely starting before April 6 or after May 11, and rarely ending before September 17 or after October 24.

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

Time Spent in Various Temperature Bands and the Growing Season in Voronezhgrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Apr 2450%Apr 2450%Oct 650%Oct 650%May 1190%May 1190%Sep 1790%Sep 1790%Apr 610%Apr 610%Oct 2410%Oct 2410%Jul 18100%Jul 18100%NowNowfrigidfreezingvery coldcoolcomfortablewarmcoldhot
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 Voronezh should appear around April 29, only rarely appearing before April 21 or after May 8.

Growing Degree Days in Voronezh

Growing Degree Days in VoronezhJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°F2,500°F2,500°FApr 2990°FApr 2990°FJul 2900°FJul 2900°FAug 201,800°FAug 201,800°FDec 312,225°FDec 312,225°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 extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 3.5 months, from May 2 to August 20, with an average daily incident shortwave energy per square meter above 5.3 kWh. The brightest month of the year in Voronezh is June, with an average of 6.4 kWh.

The darker period of the year lasts for 3.8 months, from October 22 to February 17, with an average daily incident shortwave energy per square meter below 1.8 kWh. The darkest month of the year in Voronezh is December, with an average of 0.7 kWh.

Average Daily Incident Shortwave Solar Energy in Voronezh

Average Daily Incident Shortwave Solar Energy in VoronezhbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhJun 176.5 kWhJun 176.5 kWhDec 180.7 kWhDec 180.7 kWhMay 25.3 kWhMay 25.3 kWhAug 205.3 kWhAug 205.3 kWhOct 221.8 kWhOct 221.8 kWhFeb 171.8 kWhFeb 171.8 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Solar Energy (kWh) 0.91.83.24.55.96.46.35.43.82.21.10.7

For the purposes of this report, the geographical coordinates of Voronezh are 51.672 deg latitude, 39.184 deg longitude, and 515 ft elevation.

The topography within 2 miles of Voronezh contains only modest variations in elevation, with a maximum elevation change of 272 feet and an average elevation above sea level of 477 feet. Within 10 miles also contains only modest variations in elevation (371 feet). Within 50 miles contains only modest variations in elevation (640 feet).

The area within 2 miles of Voronezh is covered by artificial surfaces (98%), within 10 miles by cropland (38%) and trees (31%), and within 50 miles by cropland (69%) and grassland (15%).

This report illustrates the typical weather in Voronezh, 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 is only a single weather station, Voronezh International Airport, in our network suitable to be used as a proxy for the historical temperature and dew point records of Voronezh.

At a distance of 16 kilometers from Voronezh, closer than our threshold of 150 kilometers, this station is deemed sufficiently nearby to be relied upon as our primary source for temperature and dew point records.

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

Please note that the station records themselves may additionally have been back-filled using other nearby stations or the MERRA-2 reanalysis.

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.