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
The commencement of September indicates a gentle shift in the average high-temperature, receding from August's warm 24.8°C (76.6°F) to a pleasant 21°C (69.8°F). In Chailley, September nights witness a steady temperature drop to a fresh 11.2°C (52.2°F).Humidity
In September, the average relative humidity is 74%.Rainfall
In September, in Chailley, the rain falls for 11 days. Throughout September, 29mm (1.14") of precipitation is accumulated. In Chailley, during the entire year, the rain falls for 162.7 days and collects up to 472mm (18.58") of precipitation.Snowfall
In Chailley, snow does not fall in April through October.Daylight
In September, the average length of the day in Chailley is 12h and 34min.On the first day of the month, sunrise is at 07:03 and sunset at 20:26. On the last day of September, sunrise is at 07:43 and sunset at 19:26 CEST.
Sunshine
In September, the average sunshine in Chailley is 8h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: A daily high UV index of 4 in September leads to these guidelines:
Take precautions - Protection against sunburn is recommended. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Chailley in September?
What is the average humidity in September in Chailley?
How much does it rain in Chailley in September?
When it does not snow in Chailley?
What is the average length of the day in September in Chailley?
What time are sunrise and sunset in September in Chailley?
How long on average sun shines in September in Chailley?
What is the UV index intensity in September in Chailley?
Average temperature in September
Chailley, France
- Average high temperature in September: 21°C
The warmest month (with the highest average high temperature) is August (24.8°C).
The month with the lowest average high temperature is January (5.7°C).
- Average low temperature in September: 11.2°C
The month with the highest average low temperature is July (14.1°C).
The coldest month (with the lowest average low temperature) is January (0.8°C).
Average pressure in September
Chailley, France
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1019.7mbar).
The month with the lowest atmospheric pressure is November (1014.5mbar).
Average wind speed in September
Chailley, France
- Average wind speed in September: 10.3km/h
The windiest month (with the highest average wind speed) is February (15.4km/h).
The calmest month (with the lowest average wind speed) is August (9.6km/h).
Average humidity in September
Chailley, France
- Average humidity in September: 74%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (71%).
Average rainfall in September
Chailley, France
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is May (56mm).
The driest month (with the least rainfall) is February (28mm).
Average rainfall days in September
Chailley, France
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (9.9 days).
Average snowfall in September
Chailley, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (24mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Chailley, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Chailley, France
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 42min).
The months with the least sunshine are January and December (Average sunshine: 3h and 48min).
Average sunshine days in September
Chailley, France
- Average sunshine days in September: 17.3 days
The month with the most sunshine days is March (17.8 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in September
Chailley, 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
Chailley, France
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 35).
Average visibility in September
Chailley, France
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, July, August, September and October (9km).
The months with the lowest visibility are January, May, June, November and December (8km).
Chailley, France
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