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
September
Weather in September
Temperature
The start of September comes with a small reduction in the average high-temperature, subtly receding from a warm 24.3°C (75.7°F) in August to an agreeable 20.5°C (68.9°F). In Petit-Mesnil, September nights cool down to an average of 10.5°C (50.9°F).Humidity
In Petit-Mesnil, the average relative humidity in September is 77%.Rainfall
In Petit-Mesnil, during September, the rain falls for 11.5 days and regularly aggregates up to 35mm (1.38") of precipitation. In Petit-Mesnil, during the entire year, the rain falls for 188.1 days and collects up to 585mm (23.03") of precipitation.Snowfall
In Petit-Mesnil, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 35min.On the first day of the month, sunrise is at 06:59 and sunset at 20:23. On the last day of September, in Petit-Mesnil, France, sunrise is at 07:40 and sunset at 19:22 CEST.
Sunshine
In September, the average sunshine is 8.2h.UV index
In Petit-Mesnil, France, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Undertake protective steps - Preventing sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Petit-Mesnil in September?
What is the average humidity in September in Petit-Mesnil?
How much does it rain in Petit-Mesnil in September?
When it does not snow in Petit-Mesnil?
What is the average length of the day in September in Petit-Mesnil?
When is the sunrise / sunset in September in Petit-Mesnil?
How long on average sun shines in September in Petit-Mesnil?
What is the UV index intensity in September in Petit-Mesnil?
Average temperature in September
Petit-Mesnil, France
- Average high temperature in September: 20.5°C
The warmest months (with the highest average high temperature) are July and August (24.3°C).
The month with the lowest average high temperature is January (4.8°C).
- Average low temperature in September: 10.5°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is January (0.3°C).
Average pressure in September
Petit-Mesnil, France
- Average pressure in September: 1018.1mbar
The month with the highest atmospheric pressure is December (1019.1mbar).
The month with the lowest atmospheric pressure is November (1014.4mbar).
Average wind speed in September
Petit-Mesnil, France
- Average wind speed in September: 9.9km/h
The windiest month (with the highest average wind speed) is December (14.3km/h).
The calmest month (with the lowest average wind speed) is August (9.3km/h).
Average humidity in September
Petit-Mesnil, France
- Average humidity in September: 77%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (73%).
Average rainfall in September
Petit-Mesnil, France
- Average rainfall in September: 35mm
The wettest month (with the highest rainfall) is December (74mm).
The driest month (with the least rainfall) is April (34mm).
Average rainfall days in September
Petit-Mesnil, France
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is September (11.5 days).
Average snowfall in September
Petit-Mesnil, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (48mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Petit-Mesnil, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (4.9 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
Petit-Mesnil, France
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 3h and 42min).
Average sunshine days in September
Petit-Mesnil, France
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is September (16.1 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in September
Petit-Mesnil, 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
Petit-Mesnil, France
- Average cloud cover in September: 36
The month with the most cloud cover is December (Cloud cover 64).
The months with the least cloud cover are August and September (Cloud cover 36).
Average visibility in September
Petit-Mesnil, France
- Average visibility in September: 8km
The months with the highest visibility are March, April, July and August (9km).
The months with the lowest visibility are January, February, May, June, September, October, November and December (8km).
