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Climate and Average Weather Year Round in Bolu Turkey

In Bolu, the summers are warm, dry, and clear and the winters are very cold, snowy, and partly cloudy. Over the course of the year, the temperature typically varies from 27°F to 80°F and is rarely below 16°F or above 87°F.

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

Climate in Bolu

very coldcoldcoolcomfortablewarmcoolcoldJanFebMarAprMayJunJulAugSepOctNovDecNowNow96%96%37%37%clearovercastprecipitation: 2.0 inprecipitation: 2.0 in0.9 in0.9 inmuggy: 3%muggy: 3%0%0%drydrytourism score: 8.7tourism score: 8.70.10.1
Bolu weather by month. Click on each chart for more information.

The warm season lasts for 3.4 months, from June 6 to September 18, with an average daily high temperature above 72°F. The hottest month of the year in Bolu is July, with an average high of 79°F and low of 58°F.

The cold season lasts for 3.4 months, from November 29 to March 9, with an average daily high temperature below 47°F. The coldest month of the year in Bolu is January, with an average low of 28°F and high of 40°F.

Average High and Low Temperature in Bolu

Average High and Low Temperature in BoluwarmcoldcoldJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FJan 2439°FJan 2439°FAug 180°FAug 180°F27°F27°F59°F59°FJun 672°FJun 672°FSep 1872°FSep 1872°FNov 2947°FNov 2947°FMar 947°FMar 947°F52°F52°F51°F51°F34°F34°F32°F32°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 40°F43°F50°F59°F67°F74°F79°F79°F73°F63°F52°F43°F
Temp. 34°F35°F41°F50°F58°F64°F69°F69°F62°F53°F44°F37°F
Low 28°F29°F33°F40°F48°F54°F58°F58°F51°F44°F37°F31°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 Bolu

Average Hourly Temperature in BoluJanFebMarAprMayJunJulAugSepOctNovDec12 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 AMNowNowfreezingvery coldvery coldcoldcoldcoolcomfortablewarmvery 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.

Boone, North Carolina, United States (5,653 miles away) is the far-away foreign place with temperatures most similar to Bolu (view comparison).

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In Bolu, 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 in Bolu begins around May 29 and lasts for 4.0 months, ending around September 30.

The clearest month of the year in Bolu is July, during which on average the sky is clear, mostly clear, or partly cloudy 95% of the time.

The cloudier part of the year begins around September 30 and lasts for 8.0 months, ending around May 29.

The cloudiest month of the year in Bolu is December, during which on average the sky is overcast or mostly cloudy 61% of the time.

Cloud Cover Categories in Bolu

Cloud Cover Categories in BoluclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Aug 296%Aug 296%Dec 2437%Dec 2437%May 2966%May 2966%Sep 3067%Sep 3067%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 58%58%53%49%39%20%5%6%22%45%55%61%
Clearer 42%42%47%51%61%80%95%94%78%55%45%39%

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

The wetter season lasts 8.7 months, from October 1 to June 24, with a greater than 19% chance of a given day being a wet day. The month with the most wet days in Bolu is December, with an average of 8.3 days with at least 0.04 inches of precipitation.

The drier season lasts 3.3 months, from June 24 to October 1. The month with the fewest wet days in Bolu is August, with an average of 3.8 days with at least 0.04 inches of precipitation.

Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two. The month with the most days of rain alone in Bolu is April, with an average of 6.7 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 25% on June 6.

Daily Chance of Precipitation in Bolu

Daily Chance of Precipitation in BoluwetwetdryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Dec 2128%Dec 2128%Aug 811%Aug 811%Oct 119%Oct 119%Jun 2419%Jun 2419%NowNowrainsnow
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).
Days ofJanFebMarAprMayJunJulAugSepOctNovDec
Rain 4.1d3.9d5.3d6.7d6.9d6.6d4.1d3.8d4.6d6.8d6.6d5.8d
Mixed 1.6d1.1d0.9d0.1d0.0d0.0d0.0d0.0d0.0d0.0d0.5d1.3d
Snow 1.9d1.5d0.7d0.1d0.0d0.0d0.0d0.0d0.0d0.0d0.3d1.2d
Any 7.5d6.5d6.9d6.9d6.9d6.6d4.1d3.8d4.6d6.9d7.4d8.3d

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. Bolu experiences some seasonal variation in monthly rainfall.

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

The month with the least rain in Bolu is August, with an average rainfall of 0.9 inches.

Average Monthly Rainfall in Bolu

Average Monthly Rainfall in BoluJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 in7 in7 inOct 241.8 inOct 241.8 inAug 50.9 inAug 50.9 inJun 21.6 inJun 21.6 inFeb 71.0 inFeb 71.0 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 1.1″1.0″1.2″1.4″1.5″1.5″1.0″0.9″1.2″1.8″1.7″1.6″

Snowfall

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

The snowy period of the year lasts for 4.6 months, from November 13 to April 2, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Bolu is January, with an average snowfall of 5.7 inches.

The snowless period of the year lasts for 7.4 months, from April 2 to November 13. The least snow falls around July 23, with an average total accumulation of 0.0 inches.

Average Monthly Snowfall in Bolu

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 5.7″5.1″2.5″0.4″0.0″0.0″0.0″0.0″0.0″0.1″1.1″4.3″

The length of the day in Bolu varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 15 minutes of daylight; the longest day is June 20, with 15 hours, 6 minutes of daylight.

Hours of Daylight and Twilight in Bolu

Hours of Daylight and Twilight in BoluJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 7 minMar 2012 hr, 7 minMar 2015 hr, 6 minJun 2015 hr, 6 minJun 2012 hr, 9 minSep 2212 hr, 9 minSep 229 hr, 15 minDec 219 hr, 15 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 9.6h10.7h12.0h13.3h14.5h15.0h14.7h13.7h12.4h11.1h9.9h9.3h

The earliest sunrise is at 5:21 AM on June 14, and the latest sunrise is 2 hours, 56 minutes later at 8:17 AM on January 5. The earliest sunset is at 5:25 PM on December 7, and the latest sunset is 3 hours, 3 minutes later at 8:28 PM on June 27.

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

Sunrise & Sunset with Twilight in Bolu

Sunrise & Sunset with Twilight in BoluJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 145:21 AMJun 145:21 AM8:28 PMJun 278:28 PMJun 27Dec 75:25 PMDec 75:25 PM8:17 AMJan 58:17 AMJan 5daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
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 Bolu

Solar Elevation and Azimuth in BoluJanFebMarAprMayJunJulAugSepOctNovDec12 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 AM000010101010202020203030303040404050506060700000101010102020202030303040405050602673NowNow
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 Bolu

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 Bolu, 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 Bolu

Humidity Comfort Levels in BoluJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Mar 170%Mar 170%Jul 263%Jul 263%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 0.0d0.0d0.0d0.0d0.0d0.1d0.6d0.5d0.0d0.0d0.0d0.0d

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

The windier part of the year lasts for 4.7 months, from November 18 to April 8, with average wind speeds of more than 5.9 miles per hour. The windiest month of the year in Bolu is February, with an average hourly wind speed of 6.8 miles per hour.

The calmer time of year lasts for 7.3 months, from April 8 to November 18. The calmest month of the year in Bolu is May, with an average hourly wind speed of 5.0 miles per hour.

Average Wind Speed in Bolu

Average Wind Speed in BoluwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mphFeb 126.9 mphFeb 126.9 mphMay 294.9 mphMay 294.9 mphNov 185.9 mphNov 185.9 mphApr 85.9 mphApr 85.9 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) 6.46.86.35.75.05.25.85.75.15.15.76.2

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

The wind is most often from the north for 3.4 weeks, from March 6 to March 30 and for 6.6 months, from April 9 to October 29, with a peak percentage of 69% on July 19. The wind is most often from the south for 1.4 weeks, from March 30 to April 9 and for 4.3 months, from October 29 to March 6, with a peak percentage of 33% on April 3.

Wind Direction in Bolu

Wind Direction in BoluSNSNSJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwestsouthnortheast
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).

Bolu 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 3.4 months, from June 18 to September 30, with an average temperature above 70°F. The month of the year in Bolu with the warmest water is August, with an average temperature of 76°F.

The time of year with cooler water lasts for 3.9 months, from December 21 to April 17, with an average temperature below 51°F. The month of the year in Bolu with the coolest water is February, with an average temperature of 45°F.

Average Water Temperature in Bolu

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature 47°F45°F46°F51°F60°F69°F75°F76°F73°F66°F59°F52°F

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

Tourism Score in Bolu

Tourism Score in Bolubest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810108.78.70.10.1NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationtourism score
The tourism score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

The beach/pool score favors clear, rainless days with perceived temperatures between 75°F and 90°F. Based on this score, the best time of year to visit Bolu for hot-weather activities is from mid July to mid August, with a peak score in the first week of August.

Beach/Pool Score in Bolu

Beach/Pool Score in BoluJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.66.60.00.0NowNowtemperaturetemperature 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 Bolu typically lasts for 6.7 months (206 days), from around April 11 to around November 3, rarely starting before March 17 or after May 3, and rarely ending before October 14 or after November 23.

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

Time Spent in Various Temperature Bands and the Growing Season in Bolugrowing 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%Nov 350%Nov 390%May 390%May 390%Oct 1490%Oct 1410%Mar 1710%Mar 1710%Nov 2310%Nov 230%Dec 280%Dec 28Jul 26100%Jul 26100%freezingvery coldcoldcoolcomfortablewarmfrigid
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 Bolu should appear around April 11, only rarely appearing before March 28 or after April 29.

Growing Degree Days in Bolu

Growing Degree Days in BoluJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°F2,500°F2,500°FApr 1190°FApr 1190°FJul 2900°FJul 2900°FAug 191,800°FAug 191,800°FDec 312,606°FDec 312,606°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 3.2 months, from May 17 to August 23, with an average daily incident shortwave energy per square meter above 6.6 kWh. The brightest month of the year in Bolu is July, with an average of 7.8 kWh.

The darker period of the year lasts for 3.5 months, from October 30 to February 15, with an average daily incident shortwave energy per square meter below 2.9 kWh. The darkest month of the year in Bolu is December, with an average of 1.8 kWh.

Average Daily Incident Shortwave Solar Energy in Bolu

Average Daily Incident Shortwave Solar Energy in BolubrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWh10 kWh10 kWhJul 67.9 kWhJul 67.9 kWhDec 221.7 kWhDec 221.7 kWhMay 176.6 kWhMay 176.6 kWhAug 236.6 kWhAug 236.6 kWhOct 302.9 kWhOct 302.9 kWhFeb 152.9 kWhFeb 152.9 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Solar Energy (kWh) 2.12.94.35.56.67.47.86.95.43.62.41.8

For the purposes of this report, the geographical coordinates of Bolu are 40.736 deg latitude, 31.606 deg longitude, and 2,405 ft elevation.

The topography within 2 miles of Bolu contains significant variations in elevation, with a maximum elevation change of 568 feet and an average elevation above sea level of 2,442 feet. Within 10 miles contains significant variations in elevation (4,131 feet). Within 50 miles also contains extreme variations in elevation (7,851 feet).

The area within 2 miles of Bolu is covered by cropland (61%) and artificial surfaces (38%), within 10 miles by trees (63%) and cropland (30%), and within 50 miles by trees (55%) and cropland (22%).

This report illustrates the typical weather in Bolu, 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 Bolu.

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