September weather forecastCastéras, France
September
Weather in September
September, the first month of the autumn in Castéras, is also an agreeable month, with an average temperature fluctuating between 10.2°C (50.4°F) and 22.2°C (72°F).Temperature
As September arrives, Castéras's weather displays a minor decrease in high-temperatures, transitioning from August's warm 26.2°C (79.2°F) to an agreeable 22.2°C (72°F). Castéras registers a significant reduction from the day's heat, with an average temperature drop to a fresh 10.2°C (50.4°F) in September.Humidity
The average relative humidity in September in Castéras is 68%.Rainfall
September is the month with the least rainfall in Castéras. Rain falls for 10.8 days and accumulates 24mm (0.94") of precipitation.Snowfall
June through September are months without snowfall in Castéras.Daylight
In Castéras, the average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 07:19 and sunset at 20:29. On the last day of September, in Castéras, France, sunrise is at 07:51 and sunset at 19:37 CEST.
Sunshine
In Castéras, the average sunshine in September is 8.9h.UV index
In Castéras, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: A typical high UV index of 4 in September suggests the following recommendations:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Castéras, France
- Average high temperature in September: 22.2°C
The warmest month (with the highest average high temperature) is August (26.2°C).
The month with the lowest average high temperature is January (7.7°C).
- Average low temperature in September: 10.2°C
The month with the highest average low temperature is August (13.2°C).
The coldest month (with the lowest average low temperature) is February (0°C).
Average pressure in September
Castéras, France
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is December (1021.5mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).
Average wind speed in September
Castéras, France
- Average wind speed in September: 7.9km/h
The windiest month (with the highest average wind speed) is February (10.4km/h).
The calmest month (with the lowest average wind speed) is August (7.8km/h).
Average humidity in September
Castéras, France
- Average humidity in September: 68%
The month with the highest relative humidity is February (76%).
The month with the lowest relative humidity is August (67%).
Average rainfall in September
Castéras, France
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is May (65mm).
The driest month (with the least rainfall) is September (24mm).
Average rainfall days in September
Castéras, France
- Average rainfall days in September: 10.8 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is October (9.2 days).
Average snowfall in September
Castéras, France
- Average snowfall in September: 0mm
The month with the highest snowfall is February (124mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Castéras, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (6.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Castéras, 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 54min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is November (Average sunshine: 6h and 0min).
Average sunshine days in September
Castéras, France
- Average sunshine days in September: 15.2 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is May (8.8 days).
Average UV index in September
Castéras, France
- Average UV index in September: 4
The month with the highest UV index is 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
Castéras, France
- Average cloud cover in September: 24
The months with the most cloud cover are January and February (Cloud cover 39).
The month with the least cloud cover is September (Cloud cover 24).
Average visibility in September
Castéras, France
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).





