September weather forecastArlet, France
September
Weather in September
September, the first month of the autumn in Arlet, is still a refreshing month, with an average temperature ranging between min 7.4°C (45.3°F) and max 18.7°C (65.7°F).Temperature
September signals a slight drop in average high-temperature, sliding from August's warm 23.3°C (73.9°F) to a refreshing 18.7°C (65.7°F). The temperature in Arlet dips to an average of 7.4°C (45.3°F) during September nights.Humidity
The average relative humidity in September is 78%.Rainfall
In Arlet, during September, the rain falls for 12.1 days and regularly aggregates up to 29mm (1.14") of precipitation. Throughout the year, there are 157.7 rainfall days, and 526mm (20.71") of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In Arlet, the average length of the day in September is 12h and 31min.On the first day of the month, sunrise is at 07:08 and sunset at 20:23. On the last day of September, sunrise is at 07:43 and sunset at 19:28 CEST.
Sunshine
In September, the average sunshine is 8.3h.UV index
The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: In September, a daily UV index of 3 turns into the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Arlet, France
- Average high temperature in September: 18.7°C
The warmest month (with the highest average high temperature) is August (23.3°C).
The month with the lowest average high temperature is January (3.4°C).
- Average low temperature in September: 7.4°C
The month with the highest average low temperature is August (10.7°C).
The coldest month (with the lowest average low temperature) is February (-3°C).
Average pressure in September
Arlet, France
- Average pressure in September: 1018.4mbar
The month with the highest atmospheric pressure is December (1021.3mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in September
Arlet, France
- Average wind speed in September: 8.6km/h
The windiest month (with the highest average wind speed) is February (12.7km/h).
The calmest month (with the lowest average wind speed) is August (8.2km/h).
Average humidity in September
Arlet, France
- Average humidity in September: 78%
The months with the highest relative humidity are January, November and December (87%).
The month with the lowest relative humidity is August (72%).
Average rainfall in September
Arlet, France
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is November (64mm).
The driest month (with the least rainfall) is February (28mm).
Average rainfall days in September
Arlet, France
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is May (18.5 days).
The month with the least rainy days is February (8.1 days).
Average snowfall in September
Arlet, France
- Average snowfall in September: 0mm
The month with the highest snowfall is February (137mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Arlet, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (14.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Arlet, France
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 18min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in September
Arlet, France
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is October (15.4 days).
The month with the least sunshine days is May (8.5 days).
Average UV index in September
Arlet, France
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Arlet, France
- Average cloud cover in September: 41
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
Arlet, France
- Average visibility in September: 8km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and December (8km).
The months with the lowest visibility are January and November (7km).
