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 advent of September brings a subtle shift in temperature, with the average high moving from a pleasant 22.6°C (72.7°F) in August to a refreshing 18.3°C (64.9°F). Throughout September, the average low-temperature dips to a chilly 8°C (46.4°F).Humidity
In La Flachère, the average relative humidity in September is 79%.Rainfall
The month with the least rainfall is September, when the rain falls for 10.6 days and typically collects 23mm (0.91") of precipitation.Snowfall
In La Flachère, snow does not fall in June through September.Daylight
In La Flachère, the average length of the day in September is 12h and 32min.On the first day of September, sunrise is at 06:58 and sunset at 20:13. On the last day of the month, sunrise is at 07:33 and sunset at 19:18 CEST.
Sunshine
The average sunshine in September is 8.8h.UV index
In La Flachère, France, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Ensure safety - Sun damage prevention is strongly urged. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Frequently asked questions
What are the temperatures in La Flachère in September?
What is the average humidity in September in La Flachère?
What is the driest month in La Flachère?
How much does it rain in La Flachère in September?
When it does not snow in La Flachère?
Does it snow in La Flachère in September?
How many hours of daylight does La Flachère have in September?
When are sunrise and sunset in September in La Flachère?
How many hours of sunshine does La Flachère have in September?
What is the UV index intensity in September in La Flachère?
Average temperature in September
La Flachère, France
- Average high temperature in September: 18.3°C
The warmest months (with the highest average high temperature) are July and August (22.6°C).
The month with the lowest average high temperature is January (2.8°C).
- Average low temperature in September: 8°C
The months with the highest average low temperature are July and August (11.2°C).
The coldest month (with the lowest average low temperature) is February (-3.7°C).
Average pressure in September
La Flachère, France
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is April (1015mbar).
Average wind speed in September
La Flachère, France
- Average wind speed in September: 6.2km/h
The windiest month (with the highest average wind speed) is February (8km/h).
The calmest month (with the lowest average wind speed) is September (6.2km/h).
Average humidity in September
La Flachère, France
- Average humidity in September: 79%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is August (74%).
Average rainfall in September
La Flachère, France
- Average rainfall in September: 23mm
The wettest month (with the highest rainfall) is December (50mm).
The driest month (with the least rainfall) is September (23mm).
Average rainfall days in September
La Flachère, France
- Average rainfall days in September: 10.6 days
The month with the highest number of rainy days is May (15.6 days).
The month with the least rainy days is February (5.3 days).
Average snowfall in September
La Flachère, France
- Average snowfall in September: 0mm
The month with the highest snowfall is December (197mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
La Flachère, France
- Average snowfall days in September: 0.1 days
The month with the highest number of snowfall days is January (12.5 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in September /
Average sunshine in September
La Flachère, France
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 5min
The months with the most sunshine are July and August (Average sunshine: 11h and 0min).
The months with the least sunshine are January and December (Average sunshine: 5h and 30min).
Average sunshine days in September
La Flachère, France
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is October (17.8 days).
The month with the least sunshine days is May (11.9 days).
Average UV index in September
La Flachère, 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, March, November and December (UV index 2).
Average cloud cover in September
La Flachère, France
- Average cloud cover in September: 31
The months with the most cloud cover are January and February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
La Flachère, France
- Average visibility in September: 8km
The months with the highest visibility are March and August (9km).
The months with the lowest visibility are January, February, April, May, June, July, September, October, November and December (8km).
La Flachère, France
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