September weather forecastPrompsat, France
September
Weather in September
September, the first month of the autumn in Prompsat, is still a pleasant month, with an average temperature ranging between min 8.9°C (48°F) and max 20.1°C (68.2°F).Temperature
As August makes way for September, Prompsat's average high-temperature eases from a moderately hot 24.3°C (75.7°F) to a pleasant 20.1°C (68.2°F). During September, Prompsat's temperature averages to a frosty 8.9°C (48°F) at night.Humidity
In September, the average relative humidity in Prompsat is 77%.Rainfall
September is the month with the least rainfall in Prompsat. Rain falls for 12.3 days and accumulates 25mm (0.98") of precipitation.Snowfall
In Prompsat, snow does not fall in June through September.Daylight
In Prompsat, the average length of the day in September is 12h and 32min.On the first day of the month, sunrise is at 07:09 and sunset at 20:25. On the last day of September, in Prompsat, sunrise is at 07:45 and sunset at 19:29 CEST.
Sunshine
In September, the average sunshine in Prompsat is 8.3h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 4 in September translates into these instructions:
Undertake precautions - Guarding against sun damage is counselled. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Prompsat, France
- Average high temperature in September: 20.1°C
The warmest month (with the highest average high temperature) is August (24.3°C).
The month with the lowest average high temperature is January (5.1°C).
- Average low temperature in September: 8.9°C
The month with the highest average low temperature is August (12.2°C).
The coldest month (with the lowest average low temperature) is February (-1.2°C).
Average pressure in September
Prompsat, France
- Average pressure in September: 1018.5mbar
The month with the highest atmospheric pressure is December (1021.3mbar).
The month with the lowest atmospheric pressure is November (1015.5mbar).
Average wind speed in September
Prompsat, France
- Average wind speed in September: 7.9km/h
The windiest month (with the highest average wind speed) is February (11.9km/h).
The calmest month (with the lowest average wind speed) is August (7.5km/h).
Average humidity in September
Prompsat, France
- Average humidity in September: 77%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is August (73%).
Average rainfall in September
Prompsat, France
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is June (67mm).
The driest month (with the least rainfall) is September (25mm).
Average rainfall days in September
Prompsat, France
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is May (19.9 days).
The month with the least rainy days is October (11.2 days).
Average snowfall in September
Prompsat, France
- Average snowfall in September: 0mm
The month with the highest snowfall is February (43mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Prompsat, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Prompsat, 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 18min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).
Average sunshine days in September
Prompsat, France
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is October (17.3 days).
The month with the least sunshine days is May (8 days).
Average UV index in September
Prompsat, 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
Prompsat, France
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Prompsat, 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).
