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Climate and Average Weather Year Round in Halitpaşa Turkey

In Halitpaşa, the summers are hot, arid, and clear and the winters are long, cold, wet, and partly cloudy. Over the course of the year, the temperature typically varies from 34°F to 95°F and is rarely below 26°F or above 101°F.

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

Climate in Halitpaşa

coldcoolwarmhotwarmcoolcoldJanFebMarAprMayJunJulAugSepOctNovDecNowNow99%99%51%51%clearovercastprecipitation: 3.4 inprecipitation: 3.4 in0.1 in0.1 inmuggy: 9%muggy: 9%0%0%drydrybeach/pool score: 8.7beach/pool score: 8.70.00.0
Halitpaşa weather by month. Click on each chart for more information.

The hot season lasts for 3.3 months, from June 5 to September 15, with an average daily high temperature above 86°F. The hottest month of the year in Halitpaşa is July, with an average high of 94°F and low of 69°F.

The cool season lasts for 3.8 months, from November 23 to March 15, with an average daily high temperature below 60°F. The coldest month of the year in Halitpaşa is January, with an average low of 35°F and high of 51°F.

Average High and Low Temperature in Halitpaşa

Average High and Low Temperature in HalitpaşahotcoolcoolJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FJan 2251°FJan 2251°FJul 3095°FJul 3095°F34°F34°F70°F70°FJun 586°FJun 586°FSep 1586°FSep 1586°FNov 2360°FNov 2360°FMar 1560°FMar 1560°F60°F60°F61°F61°F41°F41°F39°F39°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 51°F53°F60°F69°F80°F89°F94°F93°F86°F75°F62°F53°F
Temp. 42°F44°F49°F58°F67°F76°F81°F81°F73°F63°F52°F45°F
Low 35°F36°F40°F47°F55°F63°F69°F68°F61°F52°F43°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 Halitpaşa

Average Hourly Temperature in HalitpaşaJanFebMarAprMayJunJulAugSepOctNovDec12 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 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.

Sedona, Arizona, United States (6,739 miles away); Double Springs, Alabama, United States (5,920 miles); and Franklin, Virginia, United States (5,364 miles) are the far-away foreign places with temperatures most similar to Halitpaşa (view comparison).

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In Halitpaşa, 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 Halitpaşa begins around May 24 and lasts for 4.4 months, ending around October 4.

The clearest month of the year in Halitpaşa is July, during which on average the sky is clear, mostly clear, or partly cloudy 99% of the time.

The cloudier part of the year begins around October 4 and lasts for 7.6 months, ending around May 24.

The cloudiest month of the year in Halitpaşa is December, during which on average the sky is overcast or mostly cloudy 48% of the time.

Cloud Cover Categories in Halitpaşa

Cloud Cover Categories in HalitpaşaclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jul 2499%Jul 2499%Dec 2951%Dec 2951%May 2475%May 2475%Oct 476%Oct 476%NowNowclearmostly clearmostly cloudyovercastpartly cloudy
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 46%46%42%38%28%10%1%2%13%31%41%48%
Clearer 54%54%58%62%72%90%99%98%87%69%59%52%

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

The wetter season lasts 6.1 months, from October 28 to April 30, with a greater than 16% chance of a given day being a wet day. The month with the most wet days in Halitpaşa is December, with an average of 9.0 days with at least 0.04 inches of precipitation.

The drier season lasts 5.9 months, from April 30 to October 28. The month with the fewest wet days in Halitpaşa is July, with an average of 0.7 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 Halitpaşa is December, with an average of 8.8 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 30% on December 20.

Daily Chance of Precipitation in Halitpaşa

Daily Chance of Precipitation in HalitpaşawetwetdryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Dec 2030%Dec 2030%Jul 301%Jul 301%Oct 2816%Oct 2816%Apr 3016%Apr 3016%NowNowrain
The percentage of days in which various types of precipitation are observed, excluding trace quantities: rain alone, snow alone, and mixed (both rain and snow fell in the same day).
Days ofJanFebMarAprMayJunJulAugSepOctNovDec
Rain 7.8d7.3d6.7d5.7d4.1d2.0d0.7d0.7d1.8d4.0d6.7d8.8d
Mixed 0.2d0.1d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.2d
Any 8.0d7.5d6.7d5.7d4.1d2.0d0.7d0.7d1.8d4.0d6.7d9.0d

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. Halitpaşa experiences significant seasonal variation in monthly rainfall.

The rainy period of the year lasts for 8.9 months, from September 14 to June 11, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Halitpaşa is December, with an average rainfall of 3.3 inches.

The rainless period of the year lasts for 3.1 months, from June 11 to September 14. The month with the least rain in Halitpaşa is July, with an average rainfall of 0.1 inches.

Average Monthly Rainfall in Halitpaşa

Average Monthly Rainfall in HalitpaşarainrainJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 in7 in7 inDec 113.4 inDec 113.4 inAug 10.1 inAug 10.1 inJan 293.0 inJan 293.0 inSep 140.5 inSep 140.5 inJun 110.5 inJun 110.5 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 2.9″2.8″2.2″1.7″1.0″0.4″0.1″0.1″0.5″1.4″2.8″3.3″

The length of the day in Halitpaşa varies significantly over the course of the year. In 2024, the shortest day is December 21, with 9 hours, 28 minutes of daylight; the longest day is June 20, with 14 hours, 53 minutes of daylight.

Hours of Daylight and Twilight in Halitpaşa

Hours of Daylight and Twilight in HalitpaşaJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 7 minMar 2012 hr, 7 minMar 2014 hr, 53 minJun 2014 hr, 53 minJun 2012 hr, 9 minSep 2212 hr, 9 minSep 229 hr, 28 minDec 219 hr, 28 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 9.8h10.8h12.0h13.2h14.3h14.8h14.6h13.6h12.4h11.2h10.1h9.5h

The earliest sunrise is at 5:44 AM on June 13, and the latest sunrise is 2 hours, 44 minutes later at 8:27 AM on January 5. The earliest sunset is at 5:47 PM on December 7, and the latest sunset is 2 hours, 51 minutes later at 8:38 PM on June 27.

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

Sunrise & Sunset with Twilight in Halitpaşa

Sunrise & Sunset with Twilight in HalitpaşaJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 135:44 AMJun 135:44 AM8:38 PMJun 278:38 PMJun 27Dec 75:47 PMDec 75:47 PM8:27 AMJan 58:27 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 Halitpaşa

Solar Elevation and Azimuth in HalitpaşaJanFebMarAprMayJunJulAugSepOctNovDec12 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 AM00001010101020202020303030304040405050606070000010101010202020203030304040505060702875NowNow
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 Halitpaşa

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 Halitpaşa, 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 5% of 5% throughout.

Humidity Comfort Levels in Halitpaşa

Humidity Comfort Levels in HalitpaşaJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Feb 270%Feb 270%Aug 79%Aug 79%NowNowhumidhumidcomfortablecomfortabledrydrymuggymuggy
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 0.0d0.0d0.0d0.0d0.0d0.3d1.9d2.2d0.3d0.1d0.0d0.0d

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

The windier part of the year lasts for 2.4 months, from June 22 to September 3, with average wind speeds of more than 8.9 miles per hour. The windiest month of the year in Halitpaşa is July, with an average hourly wind speed of 10.2 miles per hour.

The calmer time of year lasts for 9.6 months, from September 3 to June 22. The calmest month of the year in Halitpaşa is May, with an average hourly wind speed of 7.3 miles per hour.

Average Wind Speed in Halitpaşa

Average Wind Speed in HalitpaşawindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph2 mph2 mph4 mph4 mph6 mph6 mph8 mph8 mph10 mph10 mph12 mph12 mph14 mph14 mph16 mph16 mphJul 2610.5 mphJul 2610.5 mphMay 87.2 mphMay 87.2 mphSep 38.9 mphSep 38.9 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) 8.28.78.37.67.38.510.29.88.37.77.88.1

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

The wind is most often from the north for 2.7 months, from January 9 to March 30 and for 7.2 months, from April 9 to November 15, with a peak percentage of 79% on July 19. The wind is most often from the south for 1.4 weeks, from March 30 to April 9 and for 1.8 months, from November 15 to January 9, with a peak percentage of 35% on April 5.

Wind Direction in Halitpaşa

Wind Direction in HalitpaşaNSNSJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowsouthnorthwesteast
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).

Halitpaşa 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 some seasonal variation over the course of the year.

The time of year with warmer water lasts for 3.4 months, from June 14 to September 25, with an average temperature above 71°F. The month of the year in Halitpaşa with the warmest water is August, with an average temperature of 74°F.

The time of year with cooler water lasts for 4.3 months, from December 13 to April 23, with an average temperature below 62°F. The month of the year in Halitpaşa with the coolest water is February, with an average temperature of 59°F.

Average Water Temperature in Halitpaşa

Average Water Temperature in HalitpaşawarmcoolJanFebMarAprMayJunJulAugSepOctNovDec55°F55°F60°F60°F65°F65°F70°F70°F75°F75°F80°F80°FAug 775°FAug 775°F58°FMar 458°FMar 4Jun 1471°FJun 1471°FSep 2571°FSep 2571°FDec 1362°FDec 1362°FApr 2362°FApr 2362°FNowNow
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature 59°F59°F59°F61°F66°F71°F74°F74°F72°F69°F64°F61°F

To characterize how pleasant the weather is in Halitpaşa 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 Halitpaşa for general outdoor tourist activities are from early May to mid June and from late August to mid October, with a peak score in the third week of September.

Tourism Score in Halitpaşa

Tourism Score in Halitpaşabest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810108.08.00.90.97.67.65.85.8NowNowtemperaturetemperature 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 Halitpaşa for hot-weather activities is from mid June to mid September, with a peak score in the second week of July.

Beach/Pool Score in Halitpaşa

Beach/Pool Score in Halitpaşabest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810108.78.70.00.0NowNowtemperaturetemperature 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 Halitpaşa typically lasts for 8.2 months (253 days), from around March 14 to around November 22, rarely starting before February 19 or after April 8, and rarely ending before November 1 or after December 15.

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

Time Spent in Various Temperature Bands and the Growing Season in Halitpaşagrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Mar 1450%Mar 1450%Nov 2250%Nov 2290%Apr 890%Apr 890%Nov 190%Nov 110%Feb 1910%Feb 1910%Dec 1510%Dec 150%Jan 160%Jan 16Jul 30100%Jul 30100%NowNowvery coldcoldcoolcomfortablewarmhot
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 Halitpaşa should appear around March 2, only rarely appearing before February 14 or after March 23.

Growing Degree Days in Halitpaşa

Growing Degree Days in HalitpaşaJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F1,000°F1,000°F2,000°F2,000°F3,000°F3,000°F4,000°F4,000°F5,000°F5,000°FMar 283°FMar 283°FMay 26900°FMay 26900°FJul 21,800°FJul 21,800°FDec 314,817°FDec 314,817°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 14 to August 23, with an average daily incident shortwave energy per square meter above 7.1 kWh. The brightest month of the year in Halitpaşa is July, with an average of 8.2 kWh.

The darker period of the year lasts for 3.5 months, from November 3 to February 16, with an average daily incident shortwave energy per square meter below 3.2 kWh. The darkest month of the year in Halitpaşa is December, with an average of 2.1 kWh.

Average Daily Incident Shortwave Solar Energy in Halitpaşa

Average Daily Incident Shortwave Solar Energy in HalitpaşabrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhJul 48.3 kWhJul 48.3 kWhDec 212.0 kWhDec 212.0 kWhMay 147.1 kWhMay 147.1 kWhAug 237.1 kWhAug 237.1 kWhNov 33.2 kWhNov 33.2 kWhFeb 163.2 kWhFeb 163.2 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) 2.33.24.66.07.18.08.27.35.94.12.82.1

For the purposes of this report, the geographical coordinates of Halitpaşa are 38.685 deg latitude, 27.678 deg longitude, and 617 ft elevation.

The topography within 2 miles of Halitpaşa contains very significant variations in elevation, with a maximum elevation change of 1,453 feet and an average elevation above sea level of 591 feet. Within 10 miles contains very significant variations in elevation (3,268 feet). Within 50 miles contains large variations in elevation (7,060 feet).

The area within 2 miles of Halitpaşa is covered by cropland (68%) and trees (32%), within 10 miles by cropland (73%) and trees (22%), and within 50 miles by cropland (43%) and trees (35%).

This report illustrates the typical weather in Halitpaşa, 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 Halitpaşa.

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