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 start of September involves a subtle temperature drop, shifting from a warm 25.3°C (77.5°F) in August to an agreeable 21.3°C (70.3°F). An average low-temperature of 10.8°C (51.4°F) is recorded during the nights in September.Humidity
The average relative humidity in September is 75%.Rainfall
September is the month with the least rainfall. Rain falls for 7.1 days and accumulates 10mm (0.39") of precipitation.Snowfall
In Biches, snow does not fall in April through September.Daylight
In September, the average length of the day in Biches is 12h and 34min.On the first day of the month, sunrise is at 07:05 and sunset at 20:24. On the last day of September, sunrise is at 07:43 and sunset at 19:26 CEST.
Sunshine
In September, the average sunshine in Biches, France, is 7.9h.UV index
In Biches, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: In September, a daily UV index of 4 turns into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Frequently asked questions
What is the usual temperature for Biches in September?
What is the average humidity in September in Biches?
What is the driest month in Biches?
How many days does it rain in September in Biches?
When it does not snow in Biches?
Does it snow in Biches in September?
How many hours of daylight does Biches have in September?
When are sunrise and sunset in September in Biches?
How many hours of sunshine does Biches have in September?
What is the UV index reading in September in Biches?
Average temperature in September
Biches, France
- Average high temperature in September: 21.3°C
The warmest month (with the highest average high temperature) is August (25.3°C).
The month with the lowest average high temperature is January (6.1°C).
- Average low temperature in September: 10.8°C
The month with the highest average low temperature is July (14°C).
The coldest month (with the lowest average low temperature) is February (0.8°C).
Average pressure in September
Biches, France
- Average pressure in September: 1018.5mbar
The month with the highest atmospheric pressure is December (1020.5mbar).
The month with the lowest atmospheric pressure is November (1015mbar).
Average wind speed in September
Biches, France
- Average wind speed in September: 9.8km/h
The windiest month (with the highest average wind speed) is February (14.8km/h).
The calmest month (with the lowest average wind speed) is August (9.3km/h).
Average humidity in September
Biches, France
- Average humidity in September: 75%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (72%).
Average rainfall in September
Biches, France
- Average rainfall in September: 10mm
The wettest month (with the highest rainfall) is December (28mm).
The driest month (with the least rainfall) is September (10mm).
Average rainfall days in September
Biches, France
- Average rainfall days in September: 7.1 days
The month with the highest number of rainy days is May (13.4 days).
The month with the least rainy days is September (7.1 days).
Average snowfall in September
Biches, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (14mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in September
Biches, France
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (2.3 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Biches, France
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Biches, France
- Average sunshine days in September: 20.3 days
The month with the most sunshine days is September (20.3 days).
The month with the least sunshine days is June (13.3 days).
Average UV index in September
Biches, 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
Biches, France
- Average cloud cover in September: 36
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Biches, France
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, July, August and September (9km).
The months with the lowest visibility are January, May, June, October, November and December (8km).
Biches, France
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