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Climate and Average Weather Year Round in Sankt Peter Germany

In Sankt Peter, the summers are comfortable, wet, and partly cloudy and the winters are freezing, snowy, and mostly cloudy. Over the course of the year, the temperature typically varies from 25°F to 72°F and is rarely below 13°F or above 82°F.

Based on the tourism score, the best time of year to visit Sankt Peter for warm-weather activities is from late June to late August.

Climate in Sankt Peter

very coldcoldcoolcomfortablecoolcoldvery coldJanFebMarAprMayJunJulAugSepOctNovDecNowNow59%59%29%29%clearprecipitation: 3.9 inprecipitation: 3.9 in2.4 in2.4 inmuggy: 0%muggy: 0%0%0%drydrytourism score: 6.3tourism score: 6.30.00.0
Sankt Peter weather by month. Click on each chart for more information.

The warm season lasts for 3.3 months, from May 31 to September 9, with an average daily high temperature above 64°F. The hottest month of the year in Sankt Peter is July, with an average high of 71°F and low of 52°F.

The cold season lasts for 3.6 months, from November 16 to March 4, with an average daily high temperature below 42°F. The coldest month of the year in Sankt Peter is January, with an average low of 25°F and high of 35°F.

Average High and Low Temperature in Sankt Peter

Average High and Low Temperature in Sankt PeterwarmcoldcoldJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F10°F10°F20°F20°F30°F30°F40°F40°F50°F50°F60°F60°F70°F70°F80°F80°F90°F90°F100°F100°FFeb 936°FFeb 936°FAug 372°FAug 372°F25°F25°F52°F52°FMay 3164°FMay 3164°FSep 964°FSep 964°FNov 1642°FNov 1642°F46°F46°F47°F47°F32°F32°F28°F28°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 35°F37°F45°F53°F61°F67°F71°F70°F63°F53°F42°F36°F
Temp. 30°F31°F38°F44°F52°F58°F61°F61°F54°F46°F37°F32°F
Low 25°F25°F31°F36°F43°F49°F52°F51°F46°F39°F32°F28°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 Sankt Peter

Average Hourly Temperature in Sankt PeterJanFebMarAprMayJunJulAugSepOctNovDec12 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 AMNowNowfreezingfreezingfreezingvery coldvery coldcoldcoolcoolcomfortablefreezing
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.

Terrace, Canada (4,922 miles away) is the far-away foreign place with temperatures most similar to Sankt Peter (view comparison).

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In Sankt Peter, 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 Sankt Peter begins around June 9 and lasts for 3.4 months, ending around September 22.

The clearest month of the year in Sankt Peter is July, during which on average the sky is clear, mostly clear, or partly cloudy 58% of the time.

The cloudier part of the year begins around September 22 and lasts for 8.6 months, ending around June 9.

The cloudiest month of the year in Sankt Peter is December, during which on average the sky is overcast or mostly cloudy 70% of the time.

Cloud Cover Categories in Sankt Peter

Cloud Cover Categories in Sankt PeterclearercloudiercloudierJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Jul 2359%Jul 2359%Nov 2329%Nov 2329%Jun 944%Jun 944%Sep 2244%Sep 2244%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 67%63%62%60%60%53%42%44%53%64%69%70%
Clearer 33%37%38%40%40%47%58%56%47%36%31%30%

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

The wetter season lasts 8.0 months, from April 30 to December 31, with a greater than 37% chance of a given day being a wet day. The month with the most wet days in Sankt Peter is June, with an average of 12.5 days with at least 0.04 inches of precipitation.

The drier season lasts 4.0 months, from December 31 to April 30. The month with the fewest wet days in Sankt Peter is February, with an average of 9.1 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 Sankt Peter is June, with an average of 12.5 days. Based on this categorization, the most common form of precipitation throughout the year is rain alone, with a peak probability of 44% on May 26.

Daily Chance of Precipitation in Sankt Peter

Daily Chance of Precipitation in Sankt PeterwetdryJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%May 2644%May 2644%Mar 229%Mar 229%Dec 3137%Dec 3137%NowNowsnowrainmixed
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 6.4d5.5d8.1d9.6d12.8d12.5d11.6d10.8d10.0d10.2d8.3d7.4d
Mixed 1.8d1.8d1.4d0.6d0.1d0.0d0.0d0.0d0.0d0.1d0.9d2.0d
Snow 2.3d1.8d0.8d0.1d0.0d0.0d0.0d0.0d0.0d0.0d0.7d1.9d
Any 10.5d9.1d10.2d10.3d12.9d12.5d11.6d10.8d10.0d10.4d9.8d11.3d

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

Rain falls throughout the year in Sankt Peter. The month with the most rain in Sankt Peter is May, with an average rainfall of 3.7 inches.

The month with the least rain in Sankt Peter is February, with an average rainfall of 1.9 inches.

Average Monthly Rainfall in Sankt Peter

Average Monthly Rainfall in Sankt PeterJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in1 in1 in2 in2 in3 in3 in4 in4 in5 in5 in6 in6 in7 in7 inMay 293.9 inMay 293.9 inFeb 221.9 inFeb 221.9 inOct 63.3 inOct 63.3 inAug 173.0 inAug 173.0 inDec 152.7 inDec 152.7 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″1.9″2.2″2.6″3.7″3.7″3.4″3.0″3.1″3.2″2.7″2.7″

Snowfall

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

The snowy period of the year lasts for 5.0 months, from November 5 to April 5, with a sliding 31-day snowfall of at least 1.0 inches. The month with the most snow in Sankt Peter is December, with an average snowfall of 6.2 inches.

The snowless period of the year lasts for 7.0 months, from April 5 to November 5. The least snow falls around July 26, with an average total accumulation of 0.0 inches.

Average Monthly Snowfall in Sankt Peter

Average Monthly Snowfall in Sankt PetersnowsnowJanFebMarAprMayJunJulAugSepOctNovDec0 in0 in2 in2 in4 in4 in6 in6 in8 in8 in10 in10 in12 in12 in14 in14 inDec 276.5 inDec 276.5 inJul 260.0 inJul 260.0 inNov 51.0 inNov 51.0 inApr 51.0 inApr 51.0 in
The average snowfall (solid line) accumulated over the course of a sliding 31-day period centered on the day in question, with 25th to 75th and 10th to 90th percentile bands. The thin dotted line is the corresponding average rainfall.
JanFebMarAprMayJunJulAugSepOctNovDec
Snowfall 5.8″5.1″2.8″0.6″0.0″0.0″0.0″0.0″0.0″0.2″2.1″6.2″

The length of the day in Sankt Peter varies extremely over the course of the year. In 2024, the shortest day is December 21, with 8 hours, 22 minutes of daylight; the longest day is June 20, with 16 hours, 3 minutes of daylight.

Hours of Daylight and Twilight in Sankt Peter

Hours of Daylight and Twilight in Sankt PeterJanFebMarAprMayJunJulAugSepOctNovDec0 hr24 hr4 hr20 hr8 hr16 hr12 hr12 hr16 hr8 hr20 hr4 hr24 hr0 hr12 hr, 8 minMar 2012 hr, 8 minMar 2016 hr, 3 minJun 2016 hr, 3 minJun 2012 hr, 10 minSep 2212 hr, 10 minSep 228 hr, 22 minDec 218 hr, 22 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 8.9h10.2h12.0h13.7h15.2h16.0h15.6h14.2h12.5h10.8h9.3h8.4h

The earliest sunrise is at 5:27 AM on June 16, and the latest sunrise is 2 hours, 50 minutes later at 8:17 AM on January 2. The earliest sunset is at 4:34 PM on December 11, and the latest sunset is 4 hours, 57 minutes later at 9:31 PM on June 25.

Daylight saving time (DST) is observed in Sankt Peter 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 Sankt Peter

Sunrise & Sunset with Twilight and Daylight Saving Time in Sankt PeterJanFebMarAprMayJunJulAugSepOctNovDec2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AMJun 165:27 AMJun 165:27 AM9:31 PMJun 259:31 PMJun 25Dec 114:34 PMDec 114:34 PM8:17 AMJan 28:17 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 Sankt Peter

Solar Elevation and Azimuth in Sankt PeterJanFebMarAprMayJunJulAugSepOctNovDec12 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 AM0000101010202030304040506000010101010202020303040405050601965NowNow
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 Sankt Peter

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 Sankt Peter, 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 Sankt Peter

Humidity Comfort Levels in Sankt PeterJanFebMarAprMayJunJulAugSepOctNovDec0%0%10%10%20%20%30%30%40%40%50%50%60%60%70%70%80%80%90%90%100%100%Mar 150%Mar 150%Jul 80%Jul 80%humidhumidcomfortablecomfortabledrydry
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The percentage of time spent at various humidity comfort levels, categorized by dew point.
JanFebMarAprMayJunJulAugSepOctNovDec
Muggy days 0.0d0.0d0.0d0.0d0.0d0.1d0.1d0.1d0.0d0.0d0.0d0.0d

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 Sankt Peter experiences mild seasonal variation over the course of the year.

The windier part of the year lasts for 4.9 months, from November 19 to April 15, with average wind speeds of more than 5.4 miles per hour. The windiest month of the year in Sankt Peter is February, with an average hourly wind speed of 6.4 miles per hour.

The calmer time of year lasts for 7.1 months, from April 15 to November 19. The calmest month of the year in Sankt Peter is August, with an average hourly wind speed of 4.3 miles per hour.

Average Wind Speed in Sankt Peter

Average Wind Speed in Sankt PeterwindywindyJanFebMarAprMayJunJulAugSepOctNovDec0 mph0 mph1 mph1 mph2 mph2 mph3 mph3 mph4 mph4 mph5 mph5 mph6 mph6 mph7 mph7 mph8 mph8 mph9 mph9 mph10 mph10 mph11 mph11 mphFeb 26.6 mphFeb 26.6 mphAug 94.2 mphAug 94.2 mphNov 195.4 mphNov 195.4 mphApr 155.4 mphApr 155.4 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) 6.46.46.15.44.94.74.54.34.65.05.46.1

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

The wind is most often from the west for 7.9 months, from February 1 to September 29, with a peak percentage of 43% on July 5. The wind is most often from the south for 4.0 months, from September 29 to February 1, with a peak percentage of 40% on January 1.

Wind Direction in Sankt Peter

Wind Direction in Sankt PeterSWSJanFebMarAprMayJunJulAugSepOctNovDec0%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 Sankt Peter 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 Sankt Peter for general outdoor tourist activities is from late June to late August, with a peak score in the first week of August.

Tourism Score in Sankt Peter

Tourism Score in Sankt Peterbest timeJanFebMarAprMayJunJulAugSepOctNovDec002244668810106.36.30.00.0NowNowtemperaturetemperature 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 Sankt Peter for hot-weather activities is from early July to mid August, with a peak score in the last week of July.

Beach/Pool Score in Sankt Peter

Beach/Pool Score in Sankt PeterJanFebMarAprMayJunJulAugSepOctNovDec002244668810102.92.90.00.0NowNow 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 Sankt Peter typically lasts for 5.7 months (173 days), from around April 27 to around October 18, rarely starting before April 8 or after May 19, and rarely ending before September 27 or after November 7.

Time Spent in Various Temperature Bands and the Growing Season in Sankt Peter

Time Spent in Various Temperature Bands and the Growing Season in Sankt Petergrowing seasonJanFebMarAprMayJunJulAugSepOctNovDec0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%Apr 2750%Apr 2750%Oct 1850%Oct 1850%May 1990%May 1990%Sep 2790%Sep 2790%Apr 810%Apr 810%Nov 710%Nov 710%Jul 18100%Jul 18100%NowNowfreezingvery coldcoldcoolcomfortablefrigidwarm
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 Sankt Peter should appear around May 5, only rarely appearing before April 24 or after May 22.

Growing Degree Days in Sankt Peter

Growing Degree Days in Sankt PeterJanFebMarAprMayJunJulAugSepOctNovDec0°F0°F200°F200°F400°F400°F600°F600°F800°F800°F1,000°F1,000°F1,200°F1,200°F1,400°F1,400°FMay 590°FMay 590°FAug 5900°FAug 5900°FDec 311,393°FDec 311,393°F
The average growing degree days accumulated over the course of the year, with 25th to 75th and 10th to 90th percentile bands.

This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.

The average daily incident shortwave solar energy experiences extreme seasonal variation over the course of the year.

The brighter period of the year lasts for 3.4 months, from May 7 to August 18, with an average daily incident shortwave energy per square meter above 5.4 kWh. The brightest month of the year in Sankt Peter is June, with an average of 6.4 kWh.

The darker period of the year lasts for 3.6 months, from October 27 to February 15, with an average daily incident shortwave energy per square meter below 2.1 kWh. The darkest month of the year in Sankt Peter is December, with an average of 1.0 kWh.

Average Daily Incident Shortwave Solar Energy in Sankt Peter

Average Daily Incident Shortwave Solar Energy in Sankt PeterbrightdarkdarkJanFebMarAprMayJunJulAugSepOctNovDec0 kWh0 kWh1 kWh1 kWh2 kWh2 kWh3 kWh3 kWh4 kWh4 kWh5 kWh5 kWh6 kWh6 kWh7 kWh7 kWh8 kWh8 kWh9 kWh9 kWhJun 296.5 kWhJun 296.5 kWhDec 230.9 kWhDec 230.9 kWhMay 75.4 kWhMay 75.4 kWhAug 185.4 kWhAug 185.4 kWhOct 272.1 kWhOct 272.1 kWhFeb 152.1 kWhFeb 152.1 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) 1.22.13.34.75.76.46.45.54.02.51.41.0

For the purposes of this report, the geographical coordinates of Sankt Peter are 48.015 deg latitude, 8.033 deg longitude, and 2,346 ft elevation.

The topography within 2 miles of Sankt Peter contains very significant variations in elevation, with a maximum elevation change of 1,801 feet and an average elevation above sea level of 2,382 feet. Within 10 miles contains very significant variations in elevation (4,229 feet). Within 50 miles also contains extreme variations in elevation (4,554 feet).

The area within 2 miles of Sankt Peter is covered by trees (45%) and grassland (42%), within 10 miles by trees (61%) and grassland (25%), and within 50 miles by trees (45%) and cropland (35%).

This report illustrates the typical weather in Sankt Peter, 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 5 weather stations near enough to contribute to our estimation of the temperature and dew point in Sankt Peter.

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