Average Weather in August in Saint-Gervais-les-Bains France
Daily high temperatures decrease by 4°F, from 73°F to 69°F, rarely falling below 61°F or exceeding 81°F.
Daily low temperatures decrease by 4°F, from 52°F to 48°F, rarely falling below 42°F or exceeding 58°F.
For reference, on July 26, the hottest day of the year, temperatures in Saint-Gervais-les-Bains typically range from 52°F to 73°F, while on January 12, the coldest day of the year, they range from 19°F to 33°F.
Average High and Low Temperature in August
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on August. The horizontal axis is the day, 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 August
Revelstoke, Canada (4,987 miles away) and Upper Bear Creek, Colorado, United States (5,199 miles) are the far-away foreign places with temperatures most similar to Saint-Gervais-les-Bains (view comparison).
The month of August in Saint-Gervais-les-Bains experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 37% to 43%.
The clearest day of the month is August 1, with clear, mostly clear, or partly cloudy conditions 63% of the time.
For reference, on May 9, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 61%, while on July 23, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 64%.
Cloud Cover Categories in August
0% clear 20% mostly clear 40% partly cloudy 60% mostly cloudy 80% overcast 100%
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Saint-Gervais-les-Bains, the chance of a wet day over the course of August is gradually decreasing, starting the month at 32% and ending it at 29%.
For reference, the year's highest daily chance of a wet day is 40% on May 27, and its lowest chance is 23% on March 3.
Probability of Precipitation in August
The average sliding 31-day rainfall during August in Saint-Gervais-les-Bains is essentially constant, remaining about 2.7 inches throughout, and rarely exceeding 4.5 inches or falling below 1.0 inches.
The lowest average 31-day accumulation is 2.6 inches on August 16.
Average Monthly Rainfall in August
Over the course of August in Saint-Gervais-les-Bains, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1 hour, 26 minutes, implying an average daily decrease of 2 minutes, 52 seconds, and weekly decrease of 20 minutes, 1 second.
The shortest day of the month is August 31, with 13 hours, 21 minutes of daylight and the longest day is August 1, with 14 hours, 47 minutes of daylight.
Hours of Daylight and Twilight in August
The earliest sunrise of the month in Saint-Gervais-les-Bains is 6:15 AM on August 1 and the latest sunrise is 37 minutes later at 6:52 AM on August 31.
The latest sunset is 9:02 PM on August 1 and the earliest sunset is 49 minutes earlier at 8:13 PM on August 31.
Daylight saving time is observed in Saint-Gervais-les-Bains during 2018, but it neither starts nor ends during August, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:42 AM and sets 15 hours, 44 minutes later, at 9:27 PM, while on December 21, the shortest day of the year, it rises at 8:11 AM and sets 8 hours, 39 minutes later, at 4:50 PM.
Sunrise & Sunset with Twilight in August
The chance that a given day will be muggy in Saint-Gervais-les-Bains is essentially constant during August, remaining around 0% throughout.
For reference, on July 6, the muggiest day of the year, there are muggy conditions 0% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in August
dry 55°F comfortable 60°F humid 65°F muggy 70°F oppressive 75°F miserable
The average hourly wind speed in Saint-Gervais-les-Bains is essentially constant during August, remaining around 3.7 miles per hour throughout.
For reference, on January 26, the windiest day of the year, the daily average wind speed is 4.3 miles per hour, while on August 10, the calmest day of the year, the daily average wind speed is 3.7 miles per hour.
The lowest daily average wind speed during August is 3.7 miles per hour on August 12.
Average Wind Speed in August
Wind Direction in August
The growing season in Saint-Gervais-les-Bains typically lasts for 5.4 months (165 days), from around May 1 to around October 12, rarely starting before April 9 or after May 23, and rarely ending before September 26 or after October 28.
The month of August in Saint-Gervais-les-Bains is reliably fully within the growing season.
Time Spent in Various Temperature Bands and the Growing Season in August
The average accumulated growing degree days in Saint-Gervais-les-Bains are increasing during August, increasing by 345°F, from 882°F to 1,227°F, over the course of the month.
Growing Degree Days in August
The average daily incident shortwave solar energy in Saint-Gervais-les-Bains is decreasing during August, falling by 1.2 kWh, from 6.7 kWh to 5.6 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in August
For the purposes of this report, the geographical coordinates of Saint-Gervais-les-Bains are 45.893 deg latitude, 6.714 deg longitude, and 3,543 ft elevation.
The topography within 2 miles of Saint-Gervais-les-Bains contains extreme variations in elevation, with a maximum elevation change of 4,554 feet and an average elevation above sea level of 3,455 feet. Within 10 miles also contains extreme variations in elevation (14,065 feet). Within 50 miles also contains extreme variations in elevation (14,987 feet).
The area within 2 miles of Saint-Gervais-les-Bains is covered by trees (57%), artificial surfaces (24%), and grassland (14%), within 10 miles by trees (32%) and grassland (19%), and within 50 miles by trees (35%) and grassland (22%).
This report illustrates the typical weather in Saint-Gervais-les-Bains year round, 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 3 weather stations near enough to contribute to our estimation of the temperature and dew point in Saint-Gervais-les-Bains.
For each station, the records are corrected for the elevation difference between that station and Saint-Gervais-les-Bains 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 Saint-Gervais-les-Bains is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Saint-Gervais-les-Bains and a given station.
Time zones for aiports and weather stations are provided by AskGeo.com .