September weather forecastSouternon, France
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Souternon, France, with an average temperature varying between 9.6°C (49.3°F) and 20.3°C (68.5°F).Temperature
With September's onset, the weather reveals a slight temperature decrease, transitioning from a moderately hot 24.6°C (76.3°F) in August to a pleasant 20.3°C (68.5°F). During the month of September, Souternon's nighttime temperature lowers to an average of 9.6°C (49.3°F).Humidity
In Souternon, the average relative humidity in September is 78%.Rainfall
In Souternon, during September, the rain falls for 13.6 days and regularly aggregates up to 40mm (1.57") of precipitation. Throughout the year, in Souternon, France, there are 188.6 rainfall days, and 694mm (27.32") of precipitation is accumulated.Snowfall
In Souternon, snow does not fall in April through September.Daylight
The average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 07:05 and sunset at 20:22. On the last day of September, sunrise is at 07:41 and sunset at 19:25 CEST.
Sunshine
The average sunshine in September in Souternon is 7.9h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: The UV index of 4 during September leads to these advisories:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Souternon, France
- Average high temperature in September: 20.3°C
The warmest month (with the highest average high temperature) is August (24.6°C).
The month with the lowest average high temperature is January (4.9°C).
- Average low temperature in September: 9.6°C
The months with the highest average low temperature are July and August (12.7°C).
The coldest month (with the lowest average low temperature) is February (-0.7°C).
Average pressure in September
Souternon, France
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is December (1021.3mbar).
The month with the lowest atmospheric pressure is April (1015.6mbar).
Average wind speed in September
Souternon, France
- Average wind speed in September: 8.3km/h
The windiest month (with the highest average wind speed) is February (12.4km/h).
The calmest month (with the lowest average wind speed) is August (8km/h).
Average humidity in September
Souternon, France
- Average humidity in September: 78%
The months with the highest relative humidity are November and December (86%).
The month with the lowest relative humidity is August (74%).
Average rainfall in September
Souternon, France
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is June (88mm).
The driest month (with the least rainfall) is February (35mm).
Average rainfall days in September
Souternon, France
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is May (20.8 days).
The month with the least rainy days is February (12.9 days).
Average snowfall in September
Souternon, France
- Average snowfall in September: 0mm
The month with the highest snowfall is February (53mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in September
Souternon, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (5.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Souternon, 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: 7h and 54min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in September
Souternon, France
- Average sunshine days in September: 14 days
The month with the most sunshine days is October (15.1 days).
The month with the least sunshine days is May (7.4 days).
Average UV index in September
Souternon, 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
Souternon, France
- Average cloud cover in September: 39
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
Souternon, France
- Average visibility in September: 8km
The months with the highest visibility are March and August (9km).
The months with the lowest visibility are January, February, April, May, June, July, September, October, November and December (8km).
