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 arrival of September correlates with a minor temperature reduction, down from August's moderately hot 23.1°C (73.6°F) to a refreshing 19.5°C (67.1°F). Allaines records an average nighttime low of 10.7°C (51.3°F) in September.Humidity
In September, the average relative humidity in Allaines is 78%.Rainfall
In Allaines, in September, during 12 rainfall days, 28mm (1.1") of precipitation is typically accumulated. In Allaines, during the entire year, the rain falls for 176.8 days and collects up to 514mm (20.24") of precipitation.Snowfall
In Allaines, snow does not fall in April through September.Daylight
In Allaines, the average length of the day in September is 12h and 37min.On the first day of the month, sunrise is at 07:04 and sunset at 20:31. On the last day of September, in Allaines, sunrise is at 07:47 and sunset at 19:28 CEST.
Sunshine
In Allaines, the average sunshine in September is 7.5h.UV index
In September, the average daily maximum UV index in Allaines is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 4 in September suggests the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Avoiding the Sun during its peak radiation time around midday is a healthy practice. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.
Frequently asked questions
What is the usual temperature for Allaines in September?
What is the average humidity in September in Allaines?
How many days does it rain in September in Allaines?
When it does not snow in Allaines?
Does it snow in Allaines in September?
What is the average length of the day in September in Allaines?
When is the sunrise / sunset in September in Allaines?
How long on average sun shines in September in Allaines?
How high is the UV index in September in Allaines?
Average temperature in September
Allaines, France
- Average high temperature in September: 19.5°C
The warmest month (with the highest average high temperature) is August (23.1°C).
The month with the lowest average high temperature is January (5.3°C).
- Average low temperature in September: 10.7°C
The month with the highest average low temperature is August (13.4°C).
The coldest month (with the lowest average low temperature) is January (0.9°C).
Average pressure in September
Allaines, France
- Average pressure in September: 1017.8mbar
The month with the highest atmospheric pressure is September (1017.8mbar).
The month with the lowest atmospheric pressure is November (1012.9mbar).
Average wind speed in September
Allaines, France
- Average wind speed in September: 11.6km/h
The windiest month (with the highest average wind speed) is February (17.4km/h).
The calmest month (with the lowest average wind speed) is August (11.1km/h).
Average humidity in September
Allaines, France
- Average humidity in September: 78%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Allaines, France
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is December (64mm).
The driest month (with the least rainfall) is April (26mm).
Average rainfall days in September
Allaines, France
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is May (16.6 days).
The month with the least rainy days is September (12 days).
Average snowfall in September
Allaines, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (36mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in September
Allaines, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.8 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
Allaines, France
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in September: 7h and 3min
The month with the most sunshine is August (Average sunshine: 9h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in September
Allaines, France
- Average sunshine days in September: 15 days
The month with the most sunshine days is March (15.8 days).
The month with the least sunshine days is February (9.6 days).
Average UV index in September
Allaines, 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
Allaines, France
- Average cloud cover in September: 41
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in September
Allaines, France
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and December (9km).
The months with the lowest visibility are January and November (8km).
Allaines, France
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