September weather forecastChaleins, France
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Chaleins, France, with an average temperature fluctuating between 10.8°C (51.4°F) and 21.3°C (70.3°F).Temperature
Chaleins's progression into September involves a gentle drop in the average high-temperature, from a moderately hot 25.7°C (78.3°F) in August to a pleasant 21.3°C (70.3°F). During the month of September, an average temperature of 10.8°C (51.4°F) is noted during the nights in Chaleins.Humidity
The average relative humidity in September in Chaleins is 78%.Rainfall
The month with the least rainfall in Chaleins is September, when the rain falls for 12.2 days and typically collects 40mm (1.57") of precipitation.Snowfall
In Chaleins, snow does not fall in April through September.Daylight
The average length of the day in September in Chaleins is 12h and 32min.On the first day of September, sunrise is at 07:02 and sunset at 20:19. On the last day of the month, sunrise is at 07:38 and sunset at 19:22 CEST.
Sunshine
In September, the average sunshine is 8.5h.UV index
In September, the average daily maximum UV index in Chaleins is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: During September, 4 as the daily maximum UV index converts into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chaleins, France
- Average high temperature in September: 21.3°C
The warmest month (with the highest average high temperature) is August (25.7°C).
The month with the lowest average high temperature is January (5.5°C).
- Average low temperature in September: 10.8°C
The month with the highest average low temperature is July (14.2°C).
The coldest month (with the lowest average low temperature) is February (0.1°C).
Average pressure in September
Chaleins, France
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is December (1021.2mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in September
Chaleins, France
- Average wind speed in September: 8km/h
The windiest month (with the highest average wind speed) is February (11.6km/h).
The calmest month (with the lowest average wind speed) is August (7.4km/h).
Average humidity in September
Chaleins, France
- Average humidity in September: 78%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is August (74%).
Average rainfall in September
Chaleins, France
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is November (86mm).
The driest month (with the least rainfall) is September (40mm).
Average rainfall days in September
Chaleins, France
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is May (19.7 days).
The month with the least rainy days is September (12.2 days).
Average snowfall in September
Chaleins, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (48mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in September
Chaleins, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.7 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Chaleins, 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 30min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in September
Chaleins, France
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is October (14.7 days).
The month with the least sunshine days is May (7.3 days).
Average UV index in September
Chaleins, France
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, November and December (UV index 2).
Average cloud cover in September
Chaleins, France
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Chaleins, France
- Average visibility in September: 8km
The months with the highest visibility are March, April, June, July and August (9km).
The months with the lowest visibility are January, February, May, September, October, November and December (8km).





