September weather forecastPrimelles, France
September
Weather in September
September, the first month of the autumn in Primelles, is still a pleasant month, with an average temperature ranging between max 21.7°C (71.1°F) and min 11.5°C (52.7°F).Temperature
The transition into September involves a small decrease in the average high-temperature, dipping slightly from a warm 25.4°C (77.7°F) in August to an agreeable 21.7°C (71.1°F). Primelles's September nights cool down to an average low-temperature of 11.5°C (52.7°F).Humidity
In Primelles, the average relative humidity in September is 73%.Rainfall
The month with the least rainfall in Primelles is September, when the rain falls for 11.5 days and typically collects 31mm (1.22") of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September is 12h and 33min.On the first day of September, sunrise is at 07:11 and sunset at 20:30. On the last day of the month, sunrise is at 07:49 and sunset at 19:32 CEST.
Sunshine
In September, the average sunshine in Primelles is 8h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Primelles, France
- Average high temperature in September: 21.7°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 (6.6°C).
- Average low temperature in September: 11.5°C
The month with the highest average low temperature is August (14.7°C).
The coldest month (with the lowest average low temperature) is February (1.4°C).
Average pressure in September
Primelles, France
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is December (1020.2mbar).
The month with the lowest atmospheric pressure is November (1014.7mbar).
Average wind speed in September
Primelles, France
- Average wind speed in September: 10.8km/h
The windiest month (with the highest average wind speed) is February (16km/h).
The calmest month (with the lowest average wind speed) is August (10.3km/h).
Average humidity in September
Primelles, France
- Average humidity in September: 73%
The month with the highest relative humidity is December (86%).
The month with the lowest relative humidity is August (69%).
Average rainfall in September
Primelles, France
- Average rainfall in September: 31mm
The wettest months (with the highest rainfall) are May and June (68mm).
The driest month (with the least rainfall) is September (31mm).
Average rainfall days in September
Primelles, France
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is September (11.5 days).
Average snowfall in September
Primelles, France
- Average snowfall in September: 0mm
The month with the highest snowfall is February (24mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Primelles, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Primelles, France
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
Primelles, France
- Average sunshine days in September: 15.4 days
The month with the most sunshine days is September (15.4 days).
The month with the least sunshine days is May (7.6 days).
Average UV index in September
Primelles, 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
Primelles, France
- Average cloud cover in September: 34
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
Primelles, France
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, July, August, September, October and December (9km).
The months with the lowest visibility are January, May, June and November (8km).
