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
During the shift to September, Saint-Pierre-du-Perray records a mild decrease in average high-temperature, moving from a moderately hot 24.9°C (76.8°F) in August to an agreeable 21.1°C (70°F). In the month of September, Saint-Pierre-du-Perray witnesses a consistent average low-temperature of 11.7°C (53.1°F).Humidity
In Saint-Pierre-du-Perray, the average relative humidity in September is 73%.Rainfall
September is the month with the least rainfall. Rain falls for 9.1 days and accumulates 16mm (0.63") of precipitation.Snowfall
In Saint-Pierre-du-Perray, snow does not fall in April through October.Daylight
In Saint-Pierre-du-Perray, France, the average length of the day in September is 12h and 35min.On the first day of the month, sunrise is at 07:07 and sunset at 20:31. On the last day of September, in Saint-Pierre-du-Perray, sunrise is at 07:48 and sunset at 19:30 CEST.
Sunshine
In September, the average sunshine in Saint-Pierre-du-Perray is 7.8h.UV index
In Saint-Pierre-du-Perray, the average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum UV index of 4 in September translates into the following recommendations:
Take precautions - Protection against sun damage is advised. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Frequently asked questions
What is the usual temperature for Saint-Pierre-du-Perray in September?
What is the average humidity in September in Saint-Pierre-du-Perray?
What is the driest month in Saint-Pierre-du-Perray?
How many days does it rain in September in Saint-Pierre-du-Perray?
When it does not snow in Saint-Pierre-du-Perray?
How many hours of daylight does Saint-Pierre-du-Perray have in September?
When are sunrise and sunset in September in Saint-Pierre-du-Perray?
How many hours of sunshine does Saint-Pierre-du-Perray have in September?
What is the UV index reading in September in Saint-Pierre-du-Perray?
Average temperature in September
Saint-Pierre-du-Perray, France
- Average high temperature in September: 21.1°C
The warmest month (with the highest average high temperature) is August (24.9°C).
The month with the lowest average high temperature is January (6°C).
- Average low temperature in September: 11.7°C
The month with the highest average low temperature is August (15°C).
The coldest months (with the lowest average low temperature) are January and February (1.8°C).
Average pressure in September
Saint-Pierre-du-Perray, France
- Average pressure in September: 1018.1mbar
The month with the highest atmospheric pressure is December (1018.5mbar).
The month with the lowest atmospheric pressure is November (1013.6mbar).
Average wind speed in September
Saint-Pierre-du-Perray, France
- Average wind speed in September: 10.3km/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 (10km/h).
Average humidity in September
Saint-Pierre-du-Perray, France
- Average humidity in September: 73%
The months with the highest relative humidity are January and December (86%).
The month with the lowest relative humidity is August (69%).
Average rainfall in September
Saint-Pierre-du-Perray, France
- Average rainfall in September: 16mm
The wettest month (with the highest rainfall) is June (40mm).
The driest month (with the least rainfall) is September (16mm).
Average rainfall days in September
Saint-Pierre-du-Perray, France
- Average rainfall days in September: 9.1 days
The month with the highest number of rainy days is June (15.2 days).
The month with the least rainy days is September (9.1 days).
Average snowfall in September
Saint-Pierre-du-Perray, France
- Average snowfall in September: 0mm
The months with the highest snowfall are February and December (15mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Saint-Pierre-du-Perray, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.7 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
Saint-Pierre-du-Perray, 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 24min).
- Average sunshine in September: 7h and 5min
The month with the most sunshine is August (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Saint-Pierre-du-Perray, France
- Average sunshine days in September: 18.4 days
The month with the most sunshine days is September (18.4 days).
The month with the least sunshine days is June (11 days).
Average UV index in September
Saint-Pierre-du-Perray, 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
Saint-Pierre-du-Perray, France
- Average cloud cover in September: 37
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 37).
Average visibility in September
Saint-Pierre-du-Perray, 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).
Saint-Pierre-du-Perray, France
Weather forecast for your location
2. Allow the app to use your location
