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Climate and Average Weather Year Round in Torgnon Italy

In Torgnon, the summers are cool, the winters are freezing and snowy, and it is partly cloudy year round. Over the course of the year, the temperature typically varies from 16°F to 67°F and is rarely below 8°F or above 73°F.

Based on the tourism score, the best time of year to visit Torgnon for warm-weather activities is from early July to mid August.

Climate in Torgnon

freezingvery coldcoldcoolcoolcoldvery coldJanFebMarAprMayJunJulAugSepOctNovDecNowNow67%67%41%41%overcastclearprecipitation: 3.0 inprecipitation: 3.0 in1.3 in1.3 inmuggy: 0%muggy: 0%drydrytourism score: 6.0tourism score: 6.00.00.0
Torgnon weather by month. Click on each chart for more information.

The warm season lasts for 3.2 months, from June 4 to September 11, with an average daily high temperature above 59°F. The hottest month of the year in Torgnon is July, with an average high of 66°F and low of 47°F.

The cold season lasts for 3.1 months, from November 22 to February 24, with an average daily high temperature below 36°F. The coldest month of the year in Torgnon is January, with an average low of 16°F and high of 30°F.

Average High and Low Temperature in Torgnon

Average High and Low Temperature in TorgnonwarmcoldcoldJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FJan 1229°FJan 1229°FJul 2567°FJul 2567°F16°F16°F48°F48°FJun 459°FJun 459°FSep 1159°FSep 1159°FNov 2236°FNov 2236°FFeb 2436°FFeb 2436°F42°F42°F43°F43°F23°F23°F20°F20°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 30°F35°F42°F47°F54°F61°F66°F65°F58°F49°F38°F30°F
Temp. 22°F25°F33°F39°F46°F53°F57°F56°F49°F41°F31°F23°F
Low 16°F19°F25°F30°F38°F44°F47°F47°F42°F34°F25°F18°F

The figure below shows you a compact characterization of the entire year of hourly average temperatures. The horizontal axis is the day of the year, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.

Average Hourly Temperature in Torgnon

Average Hourly Temperature in TorgnonJanFebMarAprMayJunJulAugSepOctNovDec12 AM12 AM2 AM2 AM4 AM4 AM6 AM6 AM8 AM8 AM10 AM10 AM12 PM12 PM2 PM2 PM4 PM4 PM6 PM6 PM8 PM8 PM10 PM10 PM12 AM12 AMNowNowfreezingfreezingvery coldvery coldcoldcoolcoolcomfortable
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.

Cordova, Alaska, United States (4,943 miles away) and Mountain Village, Colorado, United States (5,408 miles) are the far-away foreign places with temperatures most similar to Torgnon (view comparison).

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In Torgnon, 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 Torgnon begins around June 17 and lasts for 3.0 months, ending around September 16.

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

The cloudier part of the year begins around September 16 and lasts for 9.0 months, ending around June 17.

The cloudiest month of the year in Torgnon is May, during which on average the sky is overcast or mostly cloudy 57% of the time.

Cloud Cover Categories in Torgnon

Cloud Cover Categories in TorgnonclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jul 2467%Jul 2467%May 841%May 841%Jun 1754%Jun 1754%Sep 1654%Sep 1654%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 45%46%49%53%57%47%35%38%46%52%50%47%
Clearer 55%54%51%47%43%53%65%62%54%48%50%53%

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

The wetter season lasts 4.2 months, from April 16 to August 21, with a greater than 28% chance of a given day being a wet day. The month with the most wet days in Torgnon is May, with an average of 11.5 days with at least 0.04 inches of precipitation.

The drier season lasts 7.8 months, from August 21 to April 16. The month with the fewest wet days in Torgnon is February, with an average of 5.8 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. Based on this categorization, the most common form of precipitation in Torgnon changes throughout the year.

Rain alone is the most common for 8.2 months, from March 13 to November 18. The month with the most days of rain alone in Torgnon is May, with an average of 11.1 days.

Snow alone is the most common for 3.7 months, from November 18 to March 11. The month with the most days of snow alone in Torgnon is January, with an average of 5.8 days.

Mixed snow and rain is the most common for 2.0 days, from March 11 to March 13. The month with the most days of mixed snow and rain in Torgnon is April, with an average of 2.2 days.

Daily Chance of Precipitation in Torgnon

Daily Chance of Precipitation in TorgnonsnowrainsnowJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%May 2439%May 2439%Mar 417%Mar 417%Nov 1824%Nov 1824%Apr 1628%Apr 1628%Aug 2128%Aug 2128%NowNowsnowrain
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 0.1d0.5d2.4d5.6d11.1d10.3d9.2d8.8d7.6d6.7d2.9d0.5d
Mixed 0.8d1.5d2.1d2.2d0.4d0.0d0.0d0.0d0.0d0.8d1.9d1.2d
Snow 5.8d3.8d1.7d0.6d0.0d0.0d0.0d0.0d0.0d0.3d2.2d5.0d
Any 6.7d5.8d6.3d8.4d11.5d10.4d9.2d8.8d7.6d7.8d7.0d6.7d

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. Torgnon experiences significant seasonal variation in monthly rainfall.

The rainy period of the year lasts for 9.0 months, from March 7 to December 6, with a sliding 31-day rainfall of at least 0.5 inches. The month with the most rain in Torgnon is May, with an average rainfall of 3.0 inches.

The rainless period of the year lasts for 3.0 months, from December 6 to March 7. The month with the least rain in Torgnon is January, with an average rainfall of 0.1 inches.

Average Monthly Rainfall in Torgnon

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 0.1″0.2″0.7″1.8″3.0″2.6″2.2″2.2″2.3″2.3″1.4″0.3″

Snowfall

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

The snowy period of the year lasts for 7.0 months, from October 10 to May 9, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Torgnon is January, with an average snowfall of 13.1 inches.

The snowless period of the year lasts for 5.0 months, from May 9 to October 10. The least snow falls around August 1, with an average total accumulation of 0.0 inches.

Average Monthly Snowfall in Torgnon

Average Monthly Snowfall in TorgnonsnowsnowJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in5 in5 in10 in10 in15 in15 in20 in20 in25 in25 in30 in30 inJan 813.3 inJan 813.3 inAug 10.0 inAug 10.0 inOct 101.0 inOct 101.0 inMay 91.0 inMay 91.0 inNowNow
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 13.1″11.0″6.8″4.1″0.5″0.0″0.0″0.0″0.1″1.6″7.7″13.1″

The length of the day in Torgnon varies significantly over the course of the year. In 2024, the shortest day is December 21, with 8 hours, 40 minutes of daylight; the longest day is June 20, with 15 hours, 44 minutes of daylight.

Hours of Daylight and Twilight in Torgnon

Hours of Daylight and Twilight in TorgnonJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 7 minMar 2012 hr, 7 minMar 2015 hr, 44 minJun 2015 hr, 44 minJun 2012 hr, 10 minSep 2212 hr, 10 minSep 228 hr, 40 minDec 218 hr, 40 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 9.1h10.4h12.0h13.6h15.0h15.7h15.3h14.1h12.5h10.9h9.5h8.7h

The earliest sunrise is at 5:39 AM on June 15, and the latest sunrise is 2 hours, 32 minutes later at 8:10 AM on January 2. The earliest sunset is at 4:45 PM on December 10, and the latest sunset is 4 hours, 39 minutes later at 9:23 PM on June 25.

Daylight saving time (DST) is observed in Torgnon 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 Torgnon

Sunrise & Sunset with Twilight and Daylight Saving Time in TorgnonJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 155:39 AMJun 155:39 AM9:23 PMJun 259:23 PMJun 25Dec 104:45 PMDec 104:45 PM8:10 AMJan 28:10 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 Torgnon

Solar Elevation and Azimuth in TorgnonJanFebMarAprMayJunJulAugSepOctNovDec12 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 AM00001010102020203030304040506000010101010202020303040405050602168NowNow
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 Torgnon

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 Torgnon, 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, remaining a virtually constant 0% throughout.

Humidity Comfort Levels in Torgnon

Humidity Comfort Levels in TorgnonJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Jul 20%Jul 20%NowNowdrydry
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 0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d0.0d

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

The windier part of the year lasts for 6.4 months, from November 12 to May 23, with average wind speeds of more than 4.3 miles per hour. The windiest month of the year in Torgnon is March, with an average hourly wind speed of 4.9 miles per hour.

The calmer time of year lasts for 5.6 months, from May 23 to November 12. The calmest month of the year in Torgnon is August, with an average hourly wind speed of 3.7 miles per hour.

Average Wind Speed in Torgnon

Average Wind Speed in TorgnonwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph1 mph1 mph2 mph2 mph3 mph3 mph4 mph4 mph5 mph5 mph6 mph6 mph7 mph7 mph8 mph8 mph9 mph9 mphFeb 25.0 mphFeb 25.0 mphAug 93.6 mphAug 93.6 mphNov 124.3 mphNov 124.3 mphMay 234.3 mphMay 234.3 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) 4.84.84.94.74.44.14.03.73.94.04.34.7

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

The wind is most often from the south for 1.1 months, from April 24 to May 27, with a peak percentage of 32% on May 12. The wind is most often from the west for 11 months, from May 27 to April 24, with a peak percentage of 50% on January 1.

Wind Direction in Torgnon

Wind Direction in TorgnonWSWJanFebMarAprMayJunJulAugSepOctNovDec0%100%20%80%40%60%60%40%80%20%100%0%NowNowwestsoutheastnorth
northeastsouthwest
The percentage of hours in which the mean wind direction is from each of the four cardinal wind directions, excluding hours in which the mean wind speed is less than 1.0 mph. The lightly tinted areas at the boundaries are the percentage of hours spent in the implied intermediate directions (northeast, southeast, southwest, and northwest).

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

Tourism Score in Torgnon

Tourism Score in Torgnonbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.06.00.00.0NowNow 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 Torgnon for hot-weather activities is from mid July to early August, with a peak score in the last week of July.

Beach/Pool Score in Torgnon

Beach/Pool Score in TorgnonJanFebMarAprMayJunJulAugSepOctNovDec002244668810101.21.20.00.0NowNowtemperaturetemperaturecloudscloudsprecipitationprecipitation
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 Torgnon typically lasts for 4.6 months (141 days), from around May 15 to around October 4, rarely starting before April 21 or after June 9, and rarely ending before September 8 or after October 22.

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

Time Spent in Various Temperature Bands and the Growing Season in Torgnongrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%May 1550%May 1550%Oct 450%Oct 450%Jun 990%Jun 990%Sep 890%Sep 890%Apr 2110%Apr 2110%Oct 2210%Oct 2210%0%Feb 160%Feb 16Jul 23100%Jul 23100%NowNowfrigidfreezingvery coldcoldcool
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 Torgnon should appear around June 7, only rarely appearing before May 25 or after June 23.

Growing Degree Days in Torgnon

Growing Degree Days in TorgnonJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F100°F100°F200°F200°F300°F300°F400°F400°F500°F500°F600°F600°F700°F700°F800°F800°F900°F900°FJun 790°FJun 790°FDec 31749°FDec 31749°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 3.2 months, from May 10 to August 17, with an average daily incident shortwave energy per square meter above 6.2 kWh. The brightest month of the year in Torgnon is July, with an average of 7.1 kWh.

The darker period of the year lasts for 3.4 months, from October 27 to February 8, with an average daily incident shortwave energy per square meter below 2.8 kWh. The darkest month of the year in Torgnon is December, with an average of 1.7 kWh.

Average Daily Incident Shortwave Solar Energy in Torgnon

Average Daily Incident Shortwave Solar Energy in TorgnonbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWh10 kWh10 kWhJul 57.3 kWhJul 57.3 kWhDec 181.7 kWhDec 181.7 kWhMay 106.2 kWhMay 106.2 kWhAug 176.2 kWhAug 176.2 kWhOct 272.8 kWhOct 272.8 kWhFeb 82.8 kWhFeb 82.8 kWhNowNow
The average daily shortwave solar energy reaching the ground per square meter (orange line), with 25th to 75th and 10th to 90th percentile bands.
JanFebMarAprMayJunJulAugSepOctNovDec
Solar Energy (kWh) 2.03.14.55.66.47.17.16.24.83.22.11.7

For the purposes of this report, the geographical coordinates of Torgnon are 45.806 deg latitude, 7.570 deg longitude, and 4,970 ft elevation.

The topography within 2 miles of Torgnon contains extreme variations in elevation, with a maximum elevation change of 5,748 feet and an average elevation above sea level of 5,311 feet. Within 10 miles also contains extreme variations in elevation (11,342 feet). Within 50 miles also contains extreme variations in elevation (15,279 feet).

The area within 2 miles of Torgnon is covered by trees (65%) and grassland (22%), within 10 miles by trees (47%) and grassland (21%), and within 50 miles by trees (34%) and grassland (19%).

This report illustrates the typical weather in Torgnon, 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 Torgnon.

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

The stations contributing to this reconstruction are:

  • Pian Rosa (LIMH, 26%, 11 mi, northeast, 6,473 ft elevation change)
  • Aosta Airport (LIMW, 74%, 12 mi, southwest, -3,163 ft elevation change)

Sources mapLIMH, 26%11 mi, 6,473 ftLIMW, 74%12 mi, -3,163 ft© OpenStreetMap contributors

To get a sense of how much these sources agree with each other, you can view a comparison of Torgnon 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.