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 move into September indicates a slight reduction in the average high-temperature, down from August's moderately hot 24.5°C (76.1°F) to a pleasant 20.9°C (69.6°F). Attainville's average low-temperature is measured at a fresh 11.6°C (52.9°F) during September.Humidity
The average relative humidity in September in Attainville, France, is 72%.Rainfall
The month with the least rainfall in Attainville is September, when the rain falls for 9.2 days and typically collects 14mm (0.55") of precipitation.Snowfall
In Attainville, snow does not fall in April through October.Daylight
In September, the average length of the day in Attainville, France, is 12h and 35min.On the first day of September, sunrise is at 07:07 and sunset at 20:33. On the last day of the month, sunrise is at 07:49 and sunset at 19:31 CEST.
Sunshine
In Attainville, the average sunshine in September is 7.6h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In September, a regular UV index of 4 translates into these guidelines:
Prioritize safety - Recommendations to avert sunburn are shared. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Frequently asked questions
What are September temperatures in Attainville?
What is the average humidity in September in Attainville?
What is the driest month in Attainville?
How many days does it rain in September in Attainville?
When it does not snow in Attainville?
How many hours of daylight does Attainville have in September?
When is the sunrise / sunset in September in Attainville?
How long on average sun shines in September in Attainville?
What is the UV index reading in September in Attainville?
Average temperature in September
Attainville, France
- Average high temperature in September: 20.9°C
The warmest month (with the highest average high temperature) is August (24.5°C).
The month with the lowest average high temperature is January (5.9°C).
- Average low temperature in September: 11.6°C
The month with the highest average low temperature is August (14.8°C).
The coldest months (with the lowest average low temperature) are January and February (1.8°C).
Average pressure in September
Attainville, France
- Average pressure in September: 1018.1mbar
The months with the highest atmospheric pressure are September and December (1018.1mbar).
The month with the lowest atmospheric pressure is November (1013.3mbar).
Average wind speed in September
Attainville, France
- Average wind speed in September: 10.4km/h
The windiest month (with the highest average wind speed) is February (15.5km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).
Average humidity in September
Attainville, France
- Average humidity in September: 72%
The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is August (68%).
Average rainfall in September
Attainville, France
- Average rainfall in September: 14mm
The wettest month (with the highest rainfall) is December (31mm).
The driest month (with the least rainfall) is September (14mm).
Average rainfall days in September
Attainville, France
- Average rainfall days in September: 9.2 days
The month with the highest number of rainy days is July (14.5 days).
The month with the least rainy days is September (9.2 days).
Average snowfall in September
Attainville, France
- Average snowfall in September: 0mm
The months with the highest snowfall are January, February and December (11mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Attainville, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Attainville, 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 4min
The month with the most sunshine is August (Average sunshine: 9h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Attainville, France
- Average sunshine days in September: 17.9 days
The month with the most sunshine days is September (17.9 days).
The month with the least sunshine days is February (12.5 days).
Average UV index in September
Attainville, France
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Attainville, France
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is September (Cloud cover 39).
Average visibility in September
Attainville, France
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Attainville, France
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