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
Le Mesnil-Guillaume starts September with an average high-temperature of a comfortable 18.9°C (66°F), a minor shift from August's 20.7°C (69.3°F). During September nights, Le Mesnil-Guillaume records an average temperature of 12.9°C (55.2°F).Humidity
August and September, with an average relative humidity of 79%, are the least humid months.Rainfall
In Le Mesnil-Guillaume, in September, during 13.9 rainfall days, 36mm (1.42") of precipitation is typically accumulated. In Le Mesnil-Guillaume, France, during the entire year, the rain falls for 188.8 days and collects up to 580mm (22.83") of precipitation.Snowfall
April through October are months without snowfall.Daylight
The average length of the day in September is 12h and 35min.On the first day of September in Le Mesnil-Guillaume, sunrise is at 07:16 and sunset at 20:41. On the last day of the month, sunrise is at 07:57 and sunset at 19:39 CEST.
Sunshine
In September, the average sunshine in Le Mesnil-Guillaume is 7.5h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: In September, a daily UV index of 4 turns into the following recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. Avoiding the Sun during its peak radiation time around midday is a healthy practice. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Frequently asked questions
What are the temperatures in Le Mesnil-Guillaume in September?
What is the least humid month in Le Mesnil-Guillaume?
What is the average humidity in September in Le Mesnil-Guillaume?
How many days does it rain in September in Le Mesnil-Guillaume?
When it does not snow in Le Mesnil-Guillaume?
What is the average length of the day in September in Le Mesnil-Guillaume?
When are sunrise and sunset in September in Le Mesnil-Guillaume?
How many hours of sunshine does Le Mesnil-Guillaume have in September?
What is the UV index reading in September in Le Mesnil-Guillaume?
Average temperature in September
Le Mesnil-Guillaume, France
- Average high temperature in September: 18.9°C
The warmest month (with the highest average high temperature) is August (20.7°C).
The month with the lowest average high temperature is January (7.4°C).
- Average low temperature in September: 12.9°C
The month with the highest average low temperature is August (14.7°C).
The coldest months (with the lowest average low temperature) are January and February (3.8°C).
Average pressure in September
Le Mesnil-Guillaume, France
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is September (1018mbar).
The month with the lowest atmospheric pressure is November (1012.3mbar).
Average wind speed in September
Le Mesnil-Guillaume, France
- Average wind speed in September: 16.6km/h
The windiest month (with the highest average wind speed) is December (24.1km/h).
The calmest month (with the lowest average wind speed) is August (15km/h).
Average humidity in September
Le Mesnil-Guillaume, France
- Average humidity in September: 79%
The months with the highest relative humidity are January and November (84%).
The months with the lowest relative humidity are August and September (79%).
Average rainfall in September
Le Mesnil-Guillaume, France
- Average rainfall in September: 36mm
The wettest month (with the highest rainfall) is December (76mm).
The driest month (with the least rainfall) is April (29mm).
Average rainfall days in September
Le Mesnil-Guillaume, France
- Average rainfall days in September: 13.9 days
The month with the highest number of rainy days is January (18.8 days).
The month with the least rainy days is April (13.1 days).
Average snowfall in September
Le Mesnil-Guillaume, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (17mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Le Mesnil-Guillaume, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.3 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
Le Mesnil-Guillaume, France
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 18min).
- Average sunshine in September: 7h and 3min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The months with the least sunshine are January, November and December (Average sunshine: 4h and 6min).
Average sunshine days in September
Le Mesnil-Guillaume, France
- Average sunshine days in September: 13.5 days
The month with the most sunshine days is July (13.7 days).
The month with the least sunshine days is December (8.4 days).
Average UV index in September
Le Mesnil-Guillaume, 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 and November (UV index 2).
Average cloud cover in September
Le Mesnil-Guillaume, France
- Average cloud cover in September: 40
The months with the most cloud cover are January, November and December (Cloud cover 59).
The months with the least cloud cover are April and July (Cloud cover 39).
Average visibility in September
Le Mesnil-Guillaume, France
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January and December (9km).
Le Mesnil-Guillaume, France
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