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
Grugny's shift into September is marked by a subtle change to a refreshing 19.4°C (66.9°F) from August's 22.1°C (71.8°F) in temperature. September sees the temperature falling to a mean low of 10.4°C (50.7°F).Humidity
The average relative humidity in September is 81%.Rainfall
September is the month with the least rainfall. Rain falls for 12.1 days and accumulates 24mm (0.94") of precipitation.Snowfall
April through October are months without snowfall.Daylight
In September, the average length of the day in Grugny, France, is 12h and 36min.On the first day of September in Grugny, France, sunrise is at 07:12 and sunset at 20:38. On the last day of the month, sunrise is at 07:54 and sunset at 19:36 CEST.
Sunshine
In Grugny, the average sunshine in September is 7.1h.UV index
In Grugny, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high UV index of 4 in September translates into the following recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Grugny?
What is the average humidity in September in Grugny?
What is the driest month in Grugny?
How much does it rain in Grugny in September?
When it does not snow in Grugny?
How many hours of daylight does Grugny have in September?
What time are sunrise and sunset in September in Grugny?
How long on average sun shines in September in Grugny?
What is the UV index reading in September in Grugny?
Average temperature in September
Grugny, France
- Average high temperature in September: 19.4°C
The warmest month (with the highest average high temperature) is August (22.1°C).
The month with the lowest average high temperature is January (6.4°C).
- Average low temperature in September: 10.4°C
The month with the highest average low temperature is August (12.8°C).
The coldest month (with the lowest average low temperature) is January (1.4°C).
Average pressure in September
Grugny, 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 (1012.5mbar).
Average wind speed in September
Grugny, France
- Average wind speed in September: 12km/h
The windiest month (with the highest average wind speed) is February (17.7km/h).
The calmest month (with the lowest average wind speed) is August (11.5km/h).
Average humidity in September
Grugny, France
- Average humidity in September: 81%
The months with the highest relative humidity are January and December (89%).
The month with the lowest relative humidity is August (79%).
Average rainfall in September
Grugny, France
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is December (60mm).
The driest month (with the least rainfall) is September (24mm).
Average rainfall days in September
Grugny, France
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is September (12.1 days).
Average snowfall in September
Grugny, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (14mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Grugny, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.3 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
Grugny, France
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in September: 7h and 1min
The months with the most sunshine are June and July (Average sunshine: 9h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Grugny, France
- Average sunshine days in September: 14.6 days
The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is July (9.4 days).
Average UV index in September
Grugny, France
- Average UV index in September: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Grugny, France
- Average cloud cover in September: 47
The months with the most cloud cover are January and November (Cloud cover 64).
The month with the least cloud cover is April (Cloud cover 46).
Average visibility in September
Grugny, France
- Average visibility in September: 8km
The months with the highest visibility are February, March, April and December (9km).
The months with the lowest visibility are January, May, June, July, August, September, October and November (8km).
Grugny, France
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