September weather forecastSaint-André-de-Chalencon, France
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Saint-André-de-Chalencon, France, with temperature in the range of an average low of 7.4°C (45.3°F) and an average high of 18.9°C (66°F).Temperature
The onset of September entails a subtle temperature shift, as the average high-temperature eases from a moderately hot 23.3°C (73.9°F) in August to an enjoyable 18.9°C (66°F). During the month of September, Saint-André-de-Chalencon experiences a steady low-temperature average of 7.4°C (45.3°F).Humidity
In September, the average relative humidity is 78%.Rainfall
In Saint-André-de-Chalencon, during September, the rain falls for 12.1 days and regularly aggregates up to 35mm (1.38") of precipitation. Throughout the year, in Saint-André-de-Chalencon, there are 157.7 rainfall days, and 532mm (20.94") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 1mm (0.04") of snow. Throughout the year, in Saint-André-de-Chalencon, there are 56.9 snowfall days, and 652mm (25.67") of snow is accumulated.Daylight
The average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 07:06 and sunset at 20:21. On the last day of September, sunrise is at 07:41 and sunset at 19:26 CEST.
Sunshine
In September, the average sunshine is 8.3h.UV index
In September, the average daily maximum UV index in Saint-André-de-Chalencon is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 4 during September translates into the following directions:
Exercise prevention - Protecting skin and eyes from harm is required. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Saint-André-de-Chalencon, France
- Average high temperature in September: 18.9°C
The warmest month (with the highest average high temperature) is August (23.3°C).
The month with the lowest average high temperature is January (3.4°C).
- Average low temperature in September: 7.4°C
The month with the highest average low temperature is August (10.7°C).
The coldest month (with the lowest average low temperature) is February (-3°C).
Average pressure in September
Saint-André-de-Chalencon, France
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is December (1021.3mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in September
Saint-André-de-Chalencon, France
- Average wind speed in September: 8.5km/h
The windiest month (with the highest average wind speed) is February (12.7km/h).
The calmest month (with the lowest average wind speed) is August (8.2km/h).
Average humidity in September
Saint-André-de-Chalencon, France
- Average humidity in September: 78%
The months with the highest relative humidity are January, November and December (87%).
The month with the lowest relative humidity is August (72%).
Average rainfall in September
Saint-André-de-Chalencon, France
- Average rainfall in September: 35mm
The wettest month (with the highest rainfall) is November (64mm).
The driest month (with the least rainfall) is February (28mm).
Average rainfall days in September
Saint-André-de-Chalencon, France
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is February (8.1 days).
Average snowfall in September
Saint-André-de-Chalencon, France
- Average snowfall in September: 1mm
The month with the highest snowfall is February (137mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Saint-André-de-Chalencon, France
- Average snowfall days in September: 0.2 days
The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Saint-André-de-Chalencon, France
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in September
Saint-André-de-Chalencon, France
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is October (15.4 days).
The month with the least sunshine days is May (8.5 days).
Average UV index in September
Saint-André-de-Chalencon, France
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Saint-André-de-Chalencon, France
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Saint-André-de-Chalencon, France
- Average visibility in September: 8km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and December (8km).
The months with the lowest visibility are January and November (7km).
