September weather forecastSepx, France
September
Weather in September
September, the first month of the autumn in Sepx, is also an enjoyable month, with an average temperature varying between 7.5°C (45.5°F) and 18°C (64.4°F).Temperature
September implies a soft temperature shift, with average high-temperatures reducing from August's agreeable 21.7°C (71.1°F) to a refreshing 18°C (64.4°F). September's nights in Sepx, France, observe an average temperature of 7.5°C (45.5°F).Humidity
In September, the average relative humidity in Sepx is 73%.Rainfall
In Sepx, in September, it is raining for 12.8 days, with typically 45mm (1.77") of accumulated precipitation. Throughout the year, there are 149.7 rainfall days, and 817mm (32.17") of precipitation is accumulated.Snowfall
Months with snowfall are January through June, August through December. In Sepx, in September, during 0.4 snowfall days, 20mm (0.79") of snow is typically accumulated. In Sepx, during the entire year, snow falls for 90.2 days and aggregates up to 2798mm (110.16") of snow.Daylight
In Sepx, the average length of the day in September is 12h and 30min.On the first day of September in Sepx, France, sunrise is at 07:21 and sunset at 20:31. On the last day of the month, sunrise is at 07:53 and sunset at 19:39 CEST.
Sunshine
In September, the average sunshine in Sepx is 9.4h.UV index
The average daily maximum UV index in September in Sepx is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sepx, France
- Average high temperature in September: 18°C
The warmest months (with the highest average high temperature) are July and August (21.7°C).
The month with the lowest average high temperature is February (3.2°C).
- Average low temperature in September: 7.5°C
The month with the highest average low temperature is August (10.5°C).
The coldest month (with the lowest average low temperature) is February (-4.3°C).
Average pressure in September
Sepx, France
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is December (1021.7mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).
Average wind speed in September
Sepx, France
- Average wind speed in September: 5.7km/h
The windiest month (with the highest average wind speed) is February (8.8km/h).
The calmest month (with the lowest average wind speed) is August (5.6km/h).
Average humidity in September
Sepx, France
- Average humidity in September: 73%
The months with the highest relative humidity are February and March (81%).
The months with the lowest relative humidity are July and August (70%).
Average rainfall in September
Sepx, France
- Average rainfall in September: 45mm
The wettest month (with the highest rainfall) is May (94mm).
The driest month (with the least rainfall) is February (43mm).
Average rainfall days in September
Sepx, France
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in September
Sepx, France
- Average snowfall in September: 20mm
The month with the highest snowfall is January (479mm).
The month with the least snowfall is July (0mm).
Average snowfall days in September
Sepx, France
- Average snowfall days in September: 0.4 days
The month with the highest number of snowfall days is January (15.3 days).
The month with the least snowfall days is July (0 days).
Average daylight in September /
Average sunshine in September
Sepx, France
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 9h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is November (Average sunshine: 6h and 24min).
Average sunshine days in September
Sepx, France
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is October (17.1 days).
The month with the least sunshine days is June (6.9 days).
Average UV index in September
Sepx, France
- Average UV index in September: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Sepx, France
- Average cloud cover in September: 22
The month with the most cloud cover is April (Cloud cover 38).
The months with the least cloud cover are July, August and September (Cloud cover 22).
Average visibility in September
Sepx, France
- Average visibility in September: 9km
The months with the highest visibility are February, March, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January and April (8km).





