September weather forecastCertines, France
September
Weather in September
September, the first month of the autumn in Certines, is still a pleasant month, with temperature in the range of an average low of 10.5°C (50.9°F) and an average high of 20.8°C (69.4°F).Temperature
In Certines, the average high-temperature in September slightly decreases from a warm 25.4°C (77.7°F) in August to a pleasant 20.8°C (69.4°F). In September, Certines experiences a temperature dip to an average of 10.5°C (50.9°F) at night.Humidity
The average relative humidity in September in Certines is 79%.Rainfall
September is the month with the least rainfall in Certines. Rain falls for 13.4 days and accumulates 51mm (2.01") of precipitation.Snowfall
April through September are months without snowfall.Daylight
In Certines, the average length of the day in September is 12h and 32min.On the first day of September in Certines, sunrise is at 07:00 and sunset at 20:17. On the last day of the month, sunrise is at 07:36 and sunset at 19:20 CEST.
Sunshine
The average sunshine in September in Certines is 8.5h.UV index
In Certines, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Take precautions - Protection against skin and eye damage is obliged. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Certines, France
- Average high temperature in September: 20.8°C
The warmest month (with the highest average high temperature) is August (25.4°C).
The month with the lowest average high temperature is January (4.8°C).
- Average low temperature in September: 10.5°C
The month with the highest average low temperature is July (13.8°C).
The coldest month (with the lowest average low temperature) is January (-0.3°C).
Average pressure in September
Certines, 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 (1015.5mbar).
Average wind speed in September
Certines, France
- Average wind speed in September: 7.5km/h
The windiest month (with the highest average wind speed) is February (10.6km/h).
The calmest month (with the lowest average wind speed) is August (7km/h).
Average humidity in September
Certines, France
- Average humidity in September: 79%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Certines, France
- Average rainfall in September: 51mm
The wettest month (with the highest rainfall) is November (93mm).
The driest month (with the least rainfall) is September (51mm).
Average rainfall days in September
Certines, France
- Average rainfall days in September: 13.4 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is October (13 days).
Average snowfall in September
Certines, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (56mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in September
Certines, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.9 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
Certines, 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 months with the least sunshine are January and December (Average sunshine: 4h and 36min).
Average sunshine days in September
Certines, France
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is October (16.3 days).
The month with the least sunshine days is May (9.6 days).
Average UV index in September
Certines, 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, February, November and December (UV index 2).
Average cloud cover in September
Certines, France
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Certines, France
- Average visibility in September: 8km
The months with the highest visibility are February, July and August (9km).
The months with the lowest visibility are January, March, April, May, June, September, October, November and December (8km).
