1. WeatherSpark.com
  2. France
  3. Nouvelle-Aquitaine

Climate and Average Weather Year Round in Martillac France

In Martillac, the summers are warm, the winters are very cold, and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 36°F to 82°F and is rarely below 26°F or above 93°F.

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

Climate in Martillac

coldcoolcomfortablewarmcoolcoldJanFebMarAprMayJunJulAugSepOctNovDecNowNow75%75%35%35%clearovercastprecipitation: 2.7 inprecipitation: 2.7 in1.2 in1.2 inmuggy: 14%muggy: 14%0%0%drydrytourism score: 7.4tourism score: 7.40.70.7
Martillac weather by month. Click on each chart for more information.

The warm season lasts for 3.3 months, from June 8 to September 17, with an average daily high temperature above 75°F. The hottest month of the year in Martillac is July, with an average high of 80°F and low of 59°F.

The cool season lasts for 3.5 months, from November 16 to March 1, with an average daily high temperature below 56°F. The coldest month of the year in Martillac is January, with an average low of 37°F and high of 50°F.

Average High and Low Temperature in Martillac

Average High and Low Temperature in MartillacwarmcoolcoolJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FFeb 752°FFeb 752°FAug 282°FAug 282°F36°F36°F60°F60°FJun 875°FJun 875°FSep 1775°FSep 1775°FNov 1656°FNov 1656°F55°F55°F54°F54°F42°F42°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 50°F53°F59°F64°F70°F76°F80°F81°F75°F67°F57°F51°F
Temp. 43°F44°F50°F54°F61°F67°F70°F70°F64°F57°F49°F44°F
Low 37°F37°F41°F45°F51°F56°F59°F59°F54°F49°F42°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 Martillac

Average Hourly Temperature in MartillacJanFebMarAprMayJunJulAugSepOctNovDec12 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 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.

Sierra Grande, Argentina (7,190 miles away); Tandil, Argentina (6,750 miles); and Canberra, Australia (10,728 miles) are the far-away foreign places with temperatures most similar to Martillac (view comparison).

Map
Marker
© OpenStreetMap contributors

Compare Martillac to another city:

Map

In Martillac, 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 Martillac begins around June 6 and lasts for 3.7 months, ending around September 28.

The clearest month of the year in Martillac is July, during which on average the sky is clear, mostly clear, or partly cloudy 73% of the time.

The cloudier part of the year begins around September 28 and lasts for 8.3 months, ending around June 6.

The cloudiest month of the year in Martillac is January, during which on average the sky is overcast or mostly cloudy 63% of the time.

Cloud Cover Categories in Martillac

Cloud Cover Categories in MartillacclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jul 2375%Jul 2375%Jan 535%Jan 535%Jun 654%Jun 654%Sep 2855%Sep 2855%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 63%57%53%50%49%40%27%31%41%50%57%61%
Clearer 37%43%47%50%51%60%73%69%59%50%43%39%

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

The wetter season lasts 8.9 months, from September 17 to June 13, with a greater than 25% chance of a given day being a wet day. The month with the most wet days in Martillac is November, with an average of 9.6 days with at least 0.04 inches of precipitation.

The drier season lasts 3.1 months, from June 13 to September 17. The month with the fewest wet days in Martillac is August, with an average of 5.6 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 Martillac is November, with an average of 9.5 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 33% on November 23.

Daily Chance of Precipitation in Martillac

Daily Chance of Precipitation in MartillacwetwetdryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Nov 2333%Nov 2333%Aug 2117%Aug 2117%Jun 1325%Jun 1325%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 9.4d7.6d7.6d8.9d9.0d7.5d5.8d5.6d7.2d8.8d9.5d9.4d
Mixed 0.2d0.1d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.1d
Snow 0.1d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d
Any 9.7d7.8d7.6d8.9d9.0d7.5d5.8d5.6d7.2d8.8d9.6d9.5d

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. Martillac experiences some seasonal variation in monthly rainfall.

Rain falls throughout the year in Martillac. The month with the most rain in Martillac is November, with an average rainfall of 2.7 inches.

The month with the least rain in Martillac is July, with an average rainfall of 1.2 inches.

Average Monthly Rainfall in Martillac

Average Monthly Rainfall in MartillacJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 inNov 82.7 inNov 82.7 inJul 201.2 inJul 201.2 inApr 252.0 inApr 252.0 inMar 131.6 inMar 131.6 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 2.3″2.0″1.6″2.0″2.0″1.8″1.2″1.4″2.1″2.5″2.7″2.4″

The length of the day in Martillac varies significantly over the course of the year. In 2024, the shortest day is December 21, with 8 hours, 48 minutes of daylight; the longest day is June 20, with 15 hours, 35 minutes of daylight.

Hours of Daylight and Twilight in Martillac

Hours of Daylight and Twilight in MartillacJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 7 minMar 2012 hr, 7 minMar 2015 hr, 35 minJun 2015 hr, 35 minJun 2012 hr, 9 minSep 2212 hr, 9 minSep 228 hr, 48 minDec 218 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 9.2h10.4h12.0h13.5h14.9h15.5h15.2h14.0h12.5h10.9h9.6h8.9h

The earliest sunrise is at 6:15 AM on June 15, and the latest sunrise is 2 hours, 23 minutes later at 8:39 AM on January 2. The earliest sunset is at 5:21 PM on December 9, and the latest sunset is 4 hours, 30 minutes later at 9:51 PM on June 26.

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

Sunrise & Sunset with Twilight and Daylight Saving Time in Martillac

Sunrise & Sunset with Twilight and Daylight Saving Time in MartillacJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM2 AMJun 156:15 AMJun 156:15 AM9:51 PMJun 269:51 PMJun 26Dec 95:21 PMDec 95:21 PM8:39 AMJan 28:39 AMJan 2Mar 31DSTMar 31DSTDSTOct 27DSTOct 27daynightnightnightnightSolarMidnightSolarMidnightSolarNoonSunriseSunsetNowNow
The solar day over the course of the year 2024. From bottom to top, the black lines are the previous solar midnight, sunrise, solar noon, sunset, and the next solar midnight. The day, twilights (civil, nautical, and astronomical), and night are indicated by the color bands from yellow to gray. The transitions to and from daylight saving time are indicated by the 'DST' labels.

The figure below presents a compact representation of the sun's elevation (the angle of the sun above the horizon) and azimuth (its compass bearing) for every hour of every day in the reporting period. The horizontal axis is the day of the year and the vertical axis is the hour of the day. For a given day and hour of that day, the background color indicates the azimuth of the sun at that moment. The black isolines are contours of constant solar elevation.

Solar Elevation and Azimuth in Martillac

Solar Elevation and Azimuth in MartillacJanFebMarAprMayJunJulAugSepOctNovDec12 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 AM00001010102020203030304040506000010101010202020303040405050602269NowNow
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 Martillac

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.

Martillac experiences some seasonal variation in the perceived humidity.

The muggier period of the year lasts for 3.1 months, from June 15 to September 17, during which time the comfort level is muggy, oppressive, or miserable at least 4% of the time. The month with the most muggy days in Martillac is August, with 3.9 days that are muggy or worse.

The least muggy day of the year is February 28, when muggy conditions are essentially unheard of.

Humidity Comfort Levels in Martillac

Humidity Comfort Levels in MartillacmuggyJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Feb 280%Feb 280%Aug 1314%Aug 1314%Jun 154%Jun 154%Sep 174%Sep 174%NowNowmuggymuggyhumidhumidcomfortablecomfortabledrydry
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 0.0d0.0d0.0d0.0d0.1d1.2d3.2d3.9d1.3d0.2d0.0d0.0d

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

The windier part of the year lasts for 6.9 months, from October 14 to May 11, with average wind speeds of more than 6.0 miles per hour. The windiest month of the year in Martillac is February, with an average hourly wind speed of 6.6 miles per hour.

The calmer time of year lasts for 5.1 months, from May 11 to October 14. The calmest month of the year in Martillac is August, with an average hourly wind speed of 5.2 miles per hour.

Average Wind Speed in Martillac

Average Wind Speed in MartillacwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph1 mph1 mph2 mph2 mph3 mph3 mph4 mph4 mph5 mph5 mph6 mph6 mph7 mph7 mph8 mph8 mph9 mph9 mph10 mph10 mph11 mph11 mphApr 26.8 mphApr 26.8 mphAug 85.1 mphAug 85.1 mphOct 146.0 mphOct 146.0 mphMay 116.0 mphMay 116.0 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) 6.46.66.66.55.95.65.45.25.56.06.26.4

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

The wind is most often from the west for 1.0 months, from January 23 to February 23; for 1.4 months, from March 3 to April 16; and for 5.8 months, from April 22 to October 15, with a peak percentage of 45% on July 10. The wind is most often from the north for 1.3 weeks, from February 23 to March 3 and for 6.0 days, from April 16 to April 22, with a peak percentage of 32% on April 19. The wind is most often from the south for 3.3 months, from October 15 to January 23, with a peak percentage of 34% on January 1.

Wind Direction in Martillac

Wind Direction in MartillacSWWWSJanFebMarAprMayJunJulAugSepOctNovDec0%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).

Martillac 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 3.0 months, from June 28 to September 27, with an average temperature above 66°F. The month of the year in Martillac with the warmest water is August, with an average temperature of 70°F.

The time of year with cooler water lasts for 4.1 months, from December 16 to April 21, with an average temperature below 55°F. The month of the year in Martillac with the coolest water is February, with an average temperature of 52°F.

Average Water Temperature in Martillac

Average Water Temperature in MartillacwarmcoolJanFebMarAprMayJunJulAugSepOctNovDec50°F50°F55°F55°F60°F60°F65°F65°F70°F70°F75°F75°FAug 770°FAug 770°F52°FFeb 2152°FFeb 21Jun 2866°FJun 2866°FSep 2766°FSep 2766°FDec 1655°FDec 1655°FApr 2155°FApr 2155°FNowNow
The daily average water temperature (purple line), with 25th to 75th and 10th to 90th percentile bands.
WaterJanFebMarAprMayJunJulAugSepOctNovDec
Temperature 53°F52°F53°F55°F59°F65°F69°F70°F68°F64°F59°F55°F

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

Tourism Score in Martillac

Tourism Score in Martillacbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810107.47.40.70.7NowNowtemperaturetemperature 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 Martillac for hot-weather activities is from early July to late August, with a peak score in the first week of August.

Beach/Pool Score in Martillac

Beach/Pool Score in Martillacbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.56.50.00.0NowNowtemperaturetemperature cloudscloudsprecipitationprecipitationbeach/pool score
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Methodology

For each hour between 8:00 AM and 9:00 PM of each day in the analysis period (1980 to 2016), independent scores are computed for perceived temperature, cloud cover, and total precipitation. Those scores are combined into a single hourly composite score, which is then aggregated into days, averaged over all the years in the analysis period, and smoothed.

Our cloud cover score is 10 for fully clear skies, falling linearly to 9 for mostly clear skies, and to 1 for fully overcast skies.

Our precipitation score, which is based on the three-hour precipitation centered on the hour in question, is 10 for no precipitation, falling linearly to 9 for trace precipitation, and to 0 for 0.04 inches of precipitation or more.

Our tourism temperature score is 0 for perceived temperatures below 50°F, rising linearly to 9 for 65°F, to 10 for 75°F, falling linearly to 9 for 80°F, and to 1 for 90°F or hotter.

Our beach/pool temperature score is 0 for perceived temperatures below 65°F, rising linearly to 9 for 75°F, to 10 for 82°F, falling linearly to 9 for 90°F, and to 1 for 100°F or hotter.

Definitions of the growing season vary throughout the world, but for the purposes of this report, we define it as the longest continuous period of non-freezing temperatures (≥ 32°F) in the year (the calendar year in the Northern Hemisphere, or from July 1 until June 30 in the Southern Hemisphere).

The growing season in Martillac typically lasts for 8.0 months (244 days), from around March 19 to around November 18, rarely starting before February 20 or after April 13, and rarely ending before October 24 or after December 22.

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

Time Spent in Various Temperature Bands and the Growing Season in Martillacgrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%50%Mar 1950%Mar 1950%Nov 1850%Nov 1890%Apr 1390%Apr 1390%Oct 2490%Oct 2410%Feb 2010%Feb 2010%Dec 2210%Dec 220%Jan 180%Jan 18Jul 22100%Jul 22100%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 Martillac should appear around March 11, only rarely appearing before February 22 or after March 31.

Growing Degree Days in Martillac

Growing Degree Days in MartillacJanFebMarAprMayJunJulAugSepOctNovDec0°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°FMar 1189°FMar 1189°FJun 14900°FJun 14900°FAug 11,800°FAug 11,800°FDec 313,202°FDec 313,202°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 10 to August 20, with an average daily incident shortwave energy per square meter above 6.0 kWh. The brightest month of the year in Martillac is July, with an average of 7.0 kWh.

The darker period of the year lasts for 3.6 months, from October 27 to February 16, with an average daily incident shortwave energy per square meter below 2.5 kWh. The darkest month of the year in Martillac is December, with an average of 1.3 kWh.

Average Daily Incident Shortwave Solar Energy in Martillac

Average Daily Incident Shortwave Solar Energy in MartillacbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhJul 37.2 kWhJul 37.2 kWhDec 261.3 kWhDec 261.3 kWhMay 106.0 kWhMay 106.0 kWhAug 206.0 kWhAug 206.0 kWhOct 272.5 kWhOct 272.5 kWhFeb 162.5 kWhFeb 162.5 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Solar Energy (kWh) 1.52.53.85.16.26.97.06.14.63.01.81.3

For the purposes of this report, the geographical coordinates of Martillac are 44.711 deg latitude, -0.537 deg longitude, and 125 ft elevation.

The topography within 2 miles of Martillac contains only modest variations in elevation, with a maximum elevation change of 197 feet and an average elevation above sea level of 102 feet. Within 10 miles also contains only modest variations in elevation (400 feet). Within 50 miles contains only modest variations in elevation (702 feet).

The area within 2 miles of Martillac is covered by cropland (42%), trees (34%), and artificial surfaces (21%), within 10 miles by trees (43%) and cropland (27%), and within 50 miles by trees (47%) and cropland (31%).

This report illustrates the typical weather in Martillac, 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 Martillac.

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