September weather forecastSallanches, France
September
Weather in September
September, the first month of the autumn in Sallanches, is still a mild month, with an average temperature ranging between min 4.9°C (40.8°F) and max 15.2°C (59.4°F).Temperature
With the onset of September, the average high-temperature subtly recedes from August's comfortable 19.6°C (67.3°F) to a moderate 15.2°C (59.4°F). The nighttime temperature dips to a cold 4.9°C (40.8°F) on average during September.Humidity
The average relative humidity in September is 80%.Rainfall
The month with the least rainfall in Sallanches is September, when the rain falls for 13.8 days and typically collects 31mm (1.22") of precipitation.Snowfall
June through September are months without snowfall.Daylight
The average length of the day in September 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 07:31 and sunset at 19:15 CEST.
Sunshine
The average sunshine in September in Sallanches is 8.7h.UV index
In Sallanches, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A typical high UV index of 3 in September suggests the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sallanches, France
- Average high temperature in September: 15.2°C
The warmest month (with the highest average high temperature) is August (19.6°C).
The month with the lowest average high temperature is January (-0.4°C).
- Average low temperature in September: 4.9°C
The months with the highest average low temperature are July and August (7.6°C).
The coldest month (with the lowest average low temperature) is February (-9.5°C).
Average pressure in September
Sallanches, France
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1021mbar).
The month with the lowest atmospheric pressure is April (1015.1mbar).
Average wind speed in September
Sallanches, France
- Average wind speed in September: 6.1km/h
The windiest month (with the highest average wind speed) is December (7.9km/h).
The calmest month (with the lowest average wind speed) is September (6.1km/h).
Average humidity in September
Sallanches, France
- Average humidity in September: 80%
The months with the highest relative humidity are February and March (89%).
The month with the lowest relative humidity is August (76%).
Average rainfall in September
Sallanches, France
- Average rainfall in September: 31mm
The wettest month (with the highest rainfall) is May (99mm).
The driest month (with the least rainfall) is September (31mm).
Average rainfall days in September
Sallanches, France
- Average rainfall days in September: 13.8 days
The month with the highest number of rainy days is May (19.7 days).
The months with the least rainy days are January and February (7.5 days).
Average snowfall in September
Sallanches, France
- Average snowfall in September: 0mm
The month with the highest snowfall is December (384mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Sallanches, France
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (13.2 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Sallanches, France
- Average daylight in September: 12h and 30min
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 42min
The month with the most sunshine is August (Average sunshine: 10h and 36min).
The months with the least sunshine are January and December (Average sunshine: 5h and 12min).
Average sunshine days in September
Sallanches, France
- Average sunshine days in September: 12.4 days
The month with the most sunshine days is October (18.7 days).
The month with the least sunshine days is May (7.5 days).
Average UV index in September
Sallanches, 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 and February (UV index 1).
Average cloud cover in September
Sallanches, France
- Average cloud cover in September: 35
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Sallanches, 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).
