September weather forecastCasteil, France
September
Weather in September
September, the first month of the autumn in Casteil, is still a comfortable month, with an average temperature ranging between min 5.8°C (42.4°F) and max 16.3°C (61.3°F).Temperature
Casteil experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from an agreeable 20.3°C (68.5°F) in August to an enjoyable 16.3°C (61.3°F). The average temperature in Casteil during September nights dips to a wintry 5.8°C (42.4°F).Humidity
The average relative humidity in September in Casteil is 78%.Rainfall
In September, in Casteil, the rain falls for 14.6 days. Throughout September, 59mm (2.32") of precipitation is accumulated. Throughout the year, in Casteil, there are 160.5 rainfall days, and 840mm (33.07") of precipitation is accumulated.Snowfall
Months with snowfall are January through May, September through December. September is the first month it typically snows in Casteil, France. Throughout September, in the average 0.3 snowfall days, it receives 4mm (0.16") of snow. Throughout the year, in Casteil, France, there are 54 snowfall days, and 1387mm (54.61") of snow is accumulated.Daylight
In Casteil, the average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 07:15 and sunset at 20:24. On the last day of September, sunrise is at 07:47 and sunset at 19:33 CEST.
Sunshine
The average sunshine in September in Casteil is 8.1h.UV index
In September, the average daily maximum UV index in Casteil, France, is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The average daily UV index of 3 in September transforms into the following instructions:
Act with care - The need to guard against sun damage is communicated. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Casteil, France
- Average high temperature in September: 16.3°C
The warmest month (with the highest average high temperature) is July (21°C).
The month with the lowest average high temperature is January (2.3°C).
- Average low temperature in September: 5.8°C
The month with the highest average low temperature is August (9.4°C).
The coldest month (with the lowest average low temperature) is February (-6°C).
Average pressure in September
Casteil, France
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is December (1021.1mbar).
The month with the lowest atmospheric pressure is April (1015mbar).
Average wind speed in September
Casteil, France
- Average wind speed in September: 6.6km/h
The windiest month (with the highest average wind speed) is February (10.5km/h).
The calmest month (with the lowest average wind speed) is August (6.3km/h).
Average humidity in September
Casteil, France
- Average humidity in September: 78%
The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is July (73%).
Average rainfall in September
Casteil, France
- Average rainfall in September: 59mm
The wettest month (with the highest rainfall) is April (96mm).
The driest month (with the least rainfall) is February (35mm).
Average rainfall days in September
Casteil, France
- Average rainfall days in September: 14.6 days
The month with the highest number of rainy days is April (19.5 days).
The month with the least rainy days is January (6.7 days).
Average snowfall in September
Casteil, France
- Average snowfall in September: 4mm
The month with the highest snowfall is January (482mm).
The months with the least snowfall are June, July and August (0mm).
Average snowfall days in September
Casteil, France
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
Casteil, 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: 8h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are January and November (Average sunshine: 5h and 42min).
Average sunshine days in September
Casteil, France
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is April (7.2 days).
Average UV index in September
Casteil, France
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in September
Casteil, France
- Average cloud cover in September: 37
The month with the most cloud cover is April (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 33).
Average visibility in September
Casteil, France
- Average visibility in September: 8km
The month with the highest visibility is December (9km).
The month with the lowest visibility is April (7km).
