Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
The arrival of September signals a subtle shift in temperature, down from a comfortable 18.7°C (65.7°F) in August to a moderate 14.4°C (57.9°F). An average minimum temperature of 4.3°C (39.7°F) is recorded in Saint-Gervais-les-Bains, France, during the month of September.Humidity
In Saint-Gervais-les-Bains, France, the average relative humidity in September is 80%.Rainfall
September is the month with the least rainfall. Rain falls for 15.3 days and accumulates 42mm (1.65") of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 32min.On the first day of September, sunrise is at 06:54 and sunset at 20:11. On the last day of the month, sunrise is at 07:30 and sunset at 19:15 CEST.
Sunshine
In Saint-Gervais-les-Bains, the average sunshine in September is 8.7h.UV index
In Saint-Gervais-les-Bains, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: In September, the maximum UV index of 3 suggests these recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Saint-Gervais-les-Bains?
What is the average humidity in September in Saint-Gervais-les-Bains?
What is the driest month in Saint-Gervais-les-Bains?
How much does it rain in Saint-Gervais-les-Bains in September?
When it does not snow in Saint-Gervais-les-Bains?
Does it snow in Saint-Gervais-les-Bains in September?
How many hours of daylight does Saint-Gervais-les-Bains have in September?
When is the sunrise / sunset in September in Saint-Gervais-les-Bains?
How long on average sun shines in September in Saint-Gervais-les-Bains?
What is the UV index reading in September in Saint-Gervais-les-Bains?
Average temperature in September
Saint-Gervais-les-Bains, France
- Average high temperature in September: 14.4°C
The warmest month (with the highest average high temperature) is August (18.7°C).
The month with the lowest average high temperature is January (-0.8°C).
- Average low temperature in September: 4.3°C
The month with the highest average low temperature is August (6.9°C).
The coldest months (with the lowest average low temperature) are January and February (-10.3°C).
Average pressure in September
Saint-Gervais-les-Bains, France
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is April (1015.1mbar).
Average wind speed in September
Saint-Gervais-les-Bains, France
- Average wind speed in September: 6.3km/h
The windiest month (with the highest average wind speed) is December (8.2km/h).
The calmest months (with the lowest average wind speed) are August and September (6.3km/h).
Average humidity in September
Saint-Gervais-les-Bains, France
- Average humidity in September: 80%
The months with the highest relative humidity are February and March (90%).
The month with the lowest relative humidity is August (77%).
Average rainfall in September
Saint-Gervais-les-Bains, France
- Average rainfall in September: 42mm
The wettest month (with the highest rainfall) is December (134mm).
The driest month (with the least rainfall) is September (42mm).
Average rainfall days in September
Saint-Gervais-les-Bains, France
- Average rainfall days in September: 15.3 days
The month with the highest number of rainy days is May (21.4 days).
The month with the least rainy days is February (7.2 days).
Average snowfall in September
Saint-Gervais-les-Bains, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (540mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Saint-Gervais-les-Bains, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (13.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Saint-Gervais-les-Bains, France
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 5h and 0min).
Average sunshine days in September
Saint-Gervais-les-Bains, France
- Average sunshine days in September: 12.1 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is May (7.3 days).
Average UV index in September
Saint-Gervais-les-Bains, France
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 4).
The months with the lowest UV index are January, February and November (UV index 1).
Average cloud cover in September
Saint-Gervais-les-Bains, France
- Average cloud cover in September: 36
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in September
Saint-Gervais-les-Bains, France
- Average visibility in September: 8km
The months with the highest visibility are April, May, June, July, August, September, October, November and December (8km).
The months with the lowest visibility are January, February and March (7km).
Saint-Gervais-les-Bains, France
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