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Climate and Average Weather Year Round in Bilajari Azerbaijan

In Bilajari, the summers are hot, humid, arid, and clear; the winters are long, very cold, dry, and partly cloudy; and it is windy year round. Over the course of the year, the temperature typically varies from 34°F to 90°F and is rarely below 28°F or above 98°F.

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

Climate in Bilajari

very coldcoldcoolwarmhotwarmcoolcoldJanFebMarAprMayJunJulAugSepOctNovDecNowNow96%96%46%46%clearovercastprecipitation: 1.1 inprecipitation: 1.1 in0.1 in0.1 inmuggy: 57%muggy: 57%0%0%drydrybeach/pool score: 8.8beach/pool score: 8.80.00.0
Bilajari weather by month. Click on each chart for more information.

The hot season lasts for 3.3 months, from June 2 to September 11, with an average daily high temperature above 81°F. The hottest month of the year in Bilajari is July, with an average high of 89°F and low of 71°F.

The cool season lasts for 4.0 months, from November 24 to March 22, with an average daily high temperature below 53°F. The coldest month of the year in Bilajari is January, with an average low of 35°F and high of 45°F.

Average High and Low Temperature in Bilajari

Average High and Low Temperature in BilajarihotcoolcoolJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FJan 2844°FJan 2844°FJul 3090°FJul 3090°F34°F34°F72°F72°FJun 281°FJun 281°FSep 1181°FSep 1181°FNov 2453°FNov 2453°FMar 2253°FMar 2253°F62°F62°F65°F65°F43°F43°F40°F40°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°F45°F52°F63°F74°F84°F89°F88°F79°F67°F56°F48°F
Temp. 39°F40°F45°F54°F65°F75°F80°F80°F71°F61°F51°F43°F
Low 35°F35°F39°F47°F57°F66°F71°F70°F63°F54°F45°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 Bilajari

Average Hourly Temperature in BilajariJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMNowNowvery coldvery coldcoldcoldcoolcoolcomfortablewarmwarmhotvery 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.

Baltimore, United States (5,983 miles away) and Kyoto, Japan (4,524 miles) are the far-away foreign places with temperatures most similar to Bilajari (view comparison).

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In Bilajari, 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 Bilajari begins around May 21 and lasts for 4.6 months, ending around October 8.

The clearest month of the year in Bilajari 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 October 8 and lasts for 7.4 months, ending around May 21.

The cloudiest month of the year in Bilajari is January, during which on average the sky is overcast or mostly cloudy 52% of the time.

Cloud Cover Categories in Bilajari

Cloud Cover Categories in BilajariclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jul 2396%Jul 2396%Jan 1846%Jan 1846%May 2171%May 2171%Oct 872%Oct 872%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 52%51%48%45%32%12%5%5%14%34%48%50%
Clearer 48%49%52%55%68%88%95%95%86%66%52%50%

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

The wetter season lasts 8.1 months, from September 9 to May 13, with a greater than 9% chance of a given day being a wet day. The month with the most wet days in Bilajari is October, with an average of 4.4 days with at least 0.04 inches of precipitation.

The drier season lasts 3.9 months, from May 13 to September 9. The month with the fewest wet days in Bilajari is July, with an average of 0.8 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 Bilajari is October, with an average of 4.4 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 16% on October 28.

Daily Chance of Precipitation in Bilajari

Daily Chance of Precipitation in BilajariwetwetdryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Oct 2816%Oct 2816%Jul 192%Jul 192%Sep 99%Sep 99%May 139%May 139%NowNowrainmixed
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 2.0d2.4d3.2d2.9d2.6d1.2d0.8d1.2d3.2d4.4d3.6d2.0d
Mixed 0.4d0.5d0.1d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.1d
Snow 0.2d0.2d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.1d
Any 2.6d3.1d3.3d2.9d2.6d1.2d0.8d1.2d3.2d4.4d3.6d2.2d

To show variation within the months and not just the monthly totals, we show the rainfall accumulated over a sliding 31-day period centered around each day of the year. Bilajari experiences some seasonal variation in monthly rainfall.

The rainy period of the year lasts for 7.9 months, from September 6 to May 2, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Bilajari is October, with an average rainfall of 1.1 inches.

The rainless period of the year lasts for 4.1 months, from May 2 to September 6. The month with the least rain in Bilajari is July, with an average rainfall of 0.2 inches.

Average Monthly Rainfall in Bilajari

Average Monthly Rainfall in BilajarirainrainJanFebMarAprMayJunJulAugSepOctNovDec0.0 in0.0 in0.5 in0.5 in1.0 in1.0 in1.5 in1.5 in2.0 in2.0 in2.5 in2.5 in3.0 in3.0 in3.5 in3.5 inOct 141.1 inOct 141.1 inJul 260.1 inJul 260.1 inMar 60.6 inMar 60.6 inDec 280.4 inDec 280.4 inSep 60.5 inSep 60.5 inMay 20.5 inMay 20.5 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 0.4″0.5″0.6″0.5″0.4″0.2″0.2″0.2″0.7″1.1″0.9″0.4″

The length of the day in Bilajari varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 17 minutes of daylight; the longest day is June 21, with 15 hours, 4 minutes of daylight.

Hours of Daylight and Twilight in Bilajari

Hours of Daylight and Twilight in BilajariJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 7 minMar 2012 hr, 7 minMar 2015 hr, 4 minJun 2115 hr, 4 minJun 2112 hr, 9 minSep 2212 hr, 9 minSep 229 hr, 17 minDec 219 hr, 17 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 9.7h10.7h12.0h13.3h14.4h15.0h14.7h13.7h12.4h11.1h9.9h9.3h

The earliest sunrise is at 5:09 AM on June 13, and the latest sunrise is 2 hours, 54 minutes later at 8:04 AM on January 4. The earliest sunset is at 5:13 PM on December 7, and the latest sunset is 3 hours, 1 minute later at 8:15 PM on June 27.

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

Sunrise & Sunset with Twilight in Bilajari

Sunrise & Sunset with Twilight in BilajariJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 135:09 AMJun 135:09 AM8:15 PMJun 278:15 PMJun 27Dec 75:13 PMDec 75:13 PM8:04 AMJan 48:04 AMJan 4daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
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 Bilajari

Solar Elevation and Azimuth in BilajariJanFebMarAprMayJunJulAugSepOctNovDec12 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 Bilajari

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.

Bilajari experiences extreme seasonal variation in the perceived humidity.

The muggier period of the year lasts for 3.5 months, from June 14 to September 30, during which time the comfort level is muggy, oppressive, or miserable at least 14% of the time. The month with the most muggy days in Bilajari is August, with 16.0 days that are muggy or worse.

The least muggy day of the year is February 19, when muggy conditions are essentially unheard of.

Humidity Comfort Levels in Bilajari

Humidity Comfort Levels in BilajarimuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Feb 190%Feb 190%Aug 457%Aug 457%Jun 1414%Jun 1414%Sep 3014%Sep 3014%NowNowmuggymuggyhumidhumiddrydrycomfortablecomfortableoppressiveoppressivemiserablemiserable
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 0.0d0.0d0.0d0.0d0.8d5.1d14.4d16.0d7.9d2.0d0.1d0.0d

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

The windier part of the year lasts for 9.4 months, from June 20 to March 31, with average wind speeds of more than 10.7 miles per hour. The windiest month of the year in Bilajari is November, with an average hourly wind speed of 12.2 miles per hour.

The calmer time of year lasts for 2.7 months, from March 31 to June 20. The calmest month of the year in Bilajari is May, with an average hourly wind speed of 9.3 miles per hour.

Average Wind Speed in Bilajari

Average Wind Speed in BilajariwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mph18 mph18 mph20 mph20 mphNov 1912.4 mphNov 1912.4 mphMay 179.1 mphMay 179.1 mphMar 3110.7 mphMar 3110.7 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) 11.812.111.610.29.310.511.811.811.911.812.212.0

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

The wind is most often from the north for 3.1 weeks, from January 15 to February 6; for 1.0 months, from February 28 to March 29; for 5.9 months, from April 7 to October 3; and for 2.0 weeks, from November 10 to November 24, with a peak percentage of 63% on July 24. The wind is most often from the south for 3.1 weeks, from February 6 to February 28; for 1.3 weeks, from March 29 to April 7; for 1.2 months, from October 3 to November 10; and for 1.7 months, from November 24 to January 15, with a peak percentage of 39% on February 21.

Wind Direction in Bilajari

Wind Direction in BilajariSNSNNSNSJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowsouthnortheastwest
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).

Bilajari 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 3.0 months, from June 23 to September 24, with an average temperature above 72°F. The month of the year in Bilajari with the warmest water is August, with an average temperature of 78°F.

The time of year with cooler water lasts for 4.3 months, from December 10 to April 21, with an average temperature below 51°F. The month of the year in Bilajari with the coolest water is February, with an average temperature of 45°F.

Average Water Temperature in Bilajari

The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature 46°F45°F45°F50°F60°F70°F76°F78°F74°F66°F57°F50°F

To characterize how pleasant the weather is in Bilajari 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 times of year to visit Bilajari for general outdoor tourist activities are from mid May to early July and from late August to early October, with a peak score in the second week of September.

Tourism Score in Bilajari

Tourism Score in Bilajaribest timebest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810108.48.40.10.18.28.26.86.8NowNowtemperaturetemperature 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 Bilajari for hot-weather activities is from late June to early September, with a peak score in the third week of July.

Beach/Pool Score in Bilajari

Beach/Pool Score in Bilajaribest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810108.88.80.00.0NowNow 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 Bilajari typically lasts for 9.3 months (285 days), from around March 4 to around December 14, rarely starting before February 9 or after March 28, and rarely ending before November 21 or after January 6.

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

Time Spent in Various Temperature Bands and the Growing Season in Bilajarigrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Mar 450%Mar 450%Dec 1450%Dec 1490%Mar 2890%Mar 2890%Nov 2190%Nov 2110%Feb 910%Feb 910%Jan 610%Jan 6Jul 25100%Jul 25100%NowNowvery coldcoldcoolcomfortablewarmhotfreezing
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 Bilajari should appear around April 12, only rarely appearing before March 29 or after April 25.

Growing Degree Days in Bilajari

Growing Degree Days in BilajariJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F500°F500°F1,000°F1,000°F1,500°F1,500°F2,000°F2,000°F2,500°F2,500°F3,000°F3,000°F3,500°F3,500°F4,000°F4,000°F4,500°F4,500°FApr 1282°FApr 1282°FJun 10900°FJun 10900°FJul 141,800°FJul 141,800°FDec 314,277°FDec 314,277°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 3.3 months, from May 8 to August 18, with an average daily incident shortwave energy per square meter above 6.5 kWh. The brightest month of the year in Bilajari is June, with an average of 7.6 kWh.

The darker period of the year lasts for 3.7 months, from October 26 to February 16, with an average daily incident shortwave energy per square meter below 3.0 kWh. The darkest month of the year in Bilajari is December, with an average of 1.8 kWh.

Average Daily Incident Shortwave Solar Energy in Bilajari

Average Daily Incident Shortwave Solar Energy in BilajaribrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhJun 207.7 kWhJun 207.7 kWhDec 221.8 kWhDec 221.8 kWhMay 86.5 kWhMay 86.5 kWhAug 186.5 kWhAug 186.5 kWhOct 263.0 kWhOct 263.0 kWhFeb 163.0 kWhFeb 163.0 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) 2.02.94.35.66.97.67.46.65.23.52.31.8

For the purposes of this report, the geographical coordinates of Bilajari are 40.444 deg latitude, 49.806 deg longitude, and 82 ft elevation.

The topography within 2 miles of Bilajari contains only modest variations in elevation, with a maximum elevation change of 440 feet and an average elevation above sea level of 152 feet. Within 10 miles contains only modest variations in elevation (1,263 feet). Within 50 miles contains very significant variations in elevation (5,200 feet).

The area within 2 miles of Bilajari is covered by sparse vegetation (49%), trees (18%), grassland (17%), and bare soil (11%), within 10 miles by sparse vegetation (34%) and water (19%), and within 50 miles by water (68%) and sparse vegetation (13%).

This report illustrates the typical weather in Bilajari, 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 Bilajari.

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