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
As La Chapelle-Janson welcomes September, the average high-temperature is noted at a pleasant 20.8°C (69.4°F), closely aligning with the preceding month. In La Chapelle-Janson, an average nighttime temperature of 10.6°C (51.1°F) is expected during September.Humidity
The months with the lowest humidity in La Chapelle-Janson are August and September, with an average relative humidity of 77%.Rainfall
The month with the least rainfall is September, when the rain falls for 9.8 days and typically collects 14mm (0.55") of precipitation.Snowfall
May through October are months without snowfall in La Chapelle-Janson.Daylight
In September, the average length of the day is 12h and 35min.On the first day of the month, sunrise is at 07:22 and sunset at 20:45. On the last day of September, sunrise is at 08:03 and sunset at 19:45 CEST.
Sunshine
In La Chapelle-Janson, the average sunshine in September is 7.4h.UV index
In La Chapelle-Janson, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 4 suggests these recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. The Sun's radiation is especially intense around midday; try to stay in shade during this period. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Frequently asked questions
What are September temperatures in La Chapelle-Janson?
What are the least humid months in La Chapelle-Janson?
What is the average humidity in September in La Chapelle-Janson?
What is the driest month in La Chapelle-Janson?
How much does it rain in La Chapelle-Janson in September?
When it does not snow in La Chapelle-Janson?
How many hours of daylight does La Chapelle-Janson have in September?
What time are sunrise and sunset in September in La Chapelle-Janson?
How long on average sun shines in September in La Chapelle-Janson?
How high is the UV index in September in La Chapelle-Janson?
Average temperature in September
La Chapelle-Janson, France
- Average high temperature in September: 20.8°C
The warmest month (with the highest average high temperature) is July (23.4°C).
The month with the lowest average high temperature is January (7.4°C).
- Average low temperature in September: 10.6°C
The month with the highest average low temperature is July (12.8°C).
The coldest month (with the lowest average low temperature) is February (1.7°C).
Average pressure in September
La Chapelle-Janson, France
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is December (1018.6mbar).
The month with the lowest atmospheric pressure is November (1013.1mbar).
Average wind speed in September
La Chapelle-Janson, France
- Average wind speed in September: 12km/h
The windiest month (with the highest average wind speed) is February (17.6km/h).
The calmest month (with the lowest average wind speed) is August (11.5km/h).
Average humidity in September
La Chapelle-Janson, France
- Average humidity in September: 77%
The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are August and September (77%).
Average rainfall in September
La Chapelle-Janson, France
- Average rainfall in September: 14mm
The wettest month (with the highest rainfall) is June (37mm).
The driest month (with the least rainfall) is September (14mm).
Average rainfall days in September
La Chapelle-Janson, France
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is September (9.8 days).
Average snowfall in September
La Chapelle-Janson, France
- Average snowfall in September: 0mm
The month with the highest snowfall is February (6mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
La Chapelle-Janson, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
La Chapelle-Janson, 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: 7h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in September
La Chapelle-Janson, France
- Average sunshine days in September: 16.7 days
The month with the most sunshine days is September (16.7 days).
The month with the least sunshine days is June (11.7 days).
Average UV index in September
La Chapelle-Janson, France
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
La Chapelle-Janson, France
- Average cloud cover in September: 41
The months with the most cloud cover are January and November (Cloud cover 59).
The month with the least cloud cover is September (Cloud cover 41).
Average visibility in September
La Chapelle-Janson, France
- Average visibility in September: 8km
The months with the highest visibility are February, March, April, June, July, November and December (9km).
The months with the lowest visibility are January, May, August, September and October (8km).
La Chapelle-Janson, France
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