Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
With the commencement of September, Castagniers records a moderate temperature decline, with the average high easing from August's moderately hot 24.8°C (76.6°F) to an agreeable 21.3°C (70.3°F). The temperature during September nights demonstrates a small drop from the daytime highs, settling to an average of 16.9°C (62.4°F).Humidity
The average relative humidity in September is 70%.Rainfall
In Castagniers, in September, during 11.9 rainfall days, 36mm (1.42") of precipitation is typically accumulated. In Castagniers, France, during the entire year, the rain falls for 149.2 days and collects up to 639mm (25.16") of precipitation.Snowfall
In Castagniers, snow does not fall in April through December.Daylight
In Castagniers, the average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 06:55 and sunset at 20:06. On the last day of the month, sunrise is at 07:28 and sunset at 19:13 CEST.
Sunshine
The average sunshine in September in Castagniers is 10h.UV index
In September, the average daily maximum UV index in Castagniers is 5. A UV Index estimate of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for average individuals.Note: In September, an average UV index of 5 transforms into the following instructions:
Prioritize safety - Suggestions to prevent sun damage are offered. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Castagniers?
What is the average humidity in September in Castagniers?
How many days does it rain in September in Castagniers?
When it does not snow in Castagniers?
What is the average length of the day in September in Castagniers?
When is the sunrise / sunset in September in Castagniers?
How long on average sun shines in September in Castagniers?
How high is the UV index in September in Castagniers?
Average temperature in September
Castagniers, France
- Average high temperature in September: 21.3°C
The warmest month (with the highest average high temperature) is August (24.8°C).
The months with the lowest average high temperature are January and February (9.4°C).
- Average low temperature in September: 16.9°C
The month with the highest average low temperature is August (20°C).
The coldest month (with the lowest average low temperature) is February (5.5°C).
Average pressure in September
Castagniers, France
- Average pressure in September: 1015.9mbar
The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is April (1013.9mbar).
Average wind speed in September
Castagniers, France
- Average wind speed in September: 10km/h
The windiest month (with the highest average wind speed) is March (13.5km/h).
The calmest month (with the lowest average wind speed) is August (8.5km/h).
Average humidity in September
Castagniers, France
- Average humidity in September: 70%
The months with the highest relative humidity are May and June (73%).
The months with the lowest relative humidity are January and December (68%).
Average rainfall in September
Castagniers, France
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is November (125mm).
The driest month (with the least rainfall) is August (30mm).
Average rainfall days in September
Castagniers, France
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is December (9.6 days).
Average snowfall in September
Castagniers, France
- Average snowfall in September: 0mm
The month with the highest snowfall is February (9mm).
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Castagniers, France
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is February (1 days).
The months with the least snowfall days are April, May, June, July, August, October and November (0 days).
Average daylight in September /
Average sunshine in September
Castagniers, France
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 10h and 0min
The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is January (Average sunshine: 6h and 24min).
Average sunshine days in September
Castagniers, France
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is December (18.6 days).
The month with the least sunshine days is June (9 days).
Average UV index in September
Castagniers, France
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Castagniers, France
- Average cloud cover in September: 16
The months with the most cloud cover are February and November (Cloud cover 29).
The month with the least cloud cover is August (Cloud cover 11).
Average visibility in September
Castagniers, France
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
Castagniers, France
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