September weather forecastDémuin, France
September
Weather in September
September, the first month of the autumn in Démuin, is still a comfortable month, with an average temperature varying between 11°C (51.8°F) and 19.4°C (66.9°F).Temperature
Démuin's September weather shows a modest shift in high-temperatures, falling from August's agreeable 22.8°C (73°F) to an enjoyable 19.4°C (66.9°F). Démuin throughout September, experiences an average nighttime temperature of 11°C (51.8°F).Humidity
In September, the average relative humidity in Démuin is 78%.Rainfall
The month with the least rainfall is September, when the rain falls for 11.3 days and typically collects 16mm (0.63") of precipitation.Snowfall
In Démuin, snow does not fall in April through October.Daylight
The average length of the day in September in Démuin is 12h and 37min.On the first day of the month, sunrise is at 07:06 and sunset at 20:33. On the last day of September, sunrise is at 07:49 and sunset at 19:30 CEST.
Sunshine
In September, the average sunshine in Démuin, France, is 7.3h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Démuin, France
- Average high temperature in September: 19.4°C
The warmest month (with the highest average high temperature) is August (22.8°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in September: 11°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (1°C).
Average pressure in September
Démuin, France
- Average pressure in September: 1017.8mbar
The month with the highest atmospheric pressure is September (1017.8mbar).
The month with the lowest atmospheric pressure is November (1012.5mbar).
Average wind speed in September
Démuin, France
- Average wind speed in September: 12.3km/h
The windiest month (with the highest average wind speed) is February (18.2km/h).
The calmest month (with the lowest average wind speed) is August (11.9km/h).
Average humidity in September
Démuin, France
- Average humidity in September: 78%
The months with the highest relative humidity are January and December (88%).
The month with the lowest relative humidity is August (76%).
Average rainfall in September
Démuin, France
- Average rainfall in September: 16mm
The wettest month (with the highest rainfall) is December (43mm).
The driest month (with the least rainfall) is September (16mm).
Average rainfall days in September
Démuin, France
- Average rainfall days in September: 11.3 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is September (11.3 days).
Average snowfall in September
Démuin, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (17mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Démuin, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Démuin, France
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in September: 7h and 18min
The month with the most sunshine is June (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Démuin, France
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is March (15.1 days).
The month with the least sunshine days is July (10.6 days).
Average UV index in September
Démuin, France
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Démuin, France
- Average cloud cover in September: 42
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 41).
Average visibility in September
Démuin, France
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).





