September weather forecastCourniou, France
September
Weather in September
September, the first month of the autumn in Courniou, is still a warm month, with an average temperature ranging between min 16.3°C (61.3°F) and max 24°C (75.2°F).Temperature
September brings a slight decrease in temperature, down from 27.7°C (81.9°F) in August to a still moderately hot 24°C (75.2°F). In Courniou, an average temperature of 16.3°C (61.3°F) is noted during September nights.Humidity
In Courniou, the average relative humidity in September is 67%.Rainfall
In Courniou, in September, during 7.5 rainfall days, 23mm (0.91") of precipitation is typically accumulated. Throughout the year, in Courniou, France, there are 109.6 rainfall days, and 357mm (14.06") of precipitation is accumulated.Snowfall
January, February, April through December are months without snowfall.Daylight
In September, the average length of the day is 12h and 30min.On the first day of the month, sunrise is at 07:13 and sunset at 20:24. On the last day of September, sunrise is at 07:46 and sunset at 19:31 CEST.
Sunshine
In September, the average sunshine is 9h.UV index
In September, the average daily maximum UV index in Courniou is 5. 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: The daily high UV index of 5 during September translates into the following recommendations:
Take necessary precautions - Suggestions to elude sunburn are provided. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Courniou, France
- Average high temperature in September: 24°C
The warmest months (with the highest average high temperature) are July and August (27.7°C).
The month with the lowest average high temperature is January (9.9°C).
- Average low temperature in September: 16.3°C
The month with the highest average low temperature is August (19.1°C).
The coldest month (with the lowest average low temperature) is February (5°C).
Average pressure in September
Courniou, France
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is December (1020.9mbar).
The month with the lowest atmospheric pressure is April (1015mbar).
Average wind speed in September
Courniou, France
- Average wind speed in September: 15km/h
The windiest month (with the highest average wind speed) is February (20.2km/h).
The calmest month (with the lowest average wind speed) is August (14.7km/h).
Average humidity in September
Courniou, France
- Average humidity in September: 67%
The months with the highest relative humidity are November and December (76%).
The month with the lowest relative humidity is July (63%).
Average rainfall in September
Courniou, France
- Average rainfall in September: 23mm
The wettest month (with the highest rainfall) is October (63mm).
The driest month (with the least rainfall) is August (16mm).
Average rainfall days in September
Courniou, France
- Average rainfall days in September: 7.5 days
The month with the highest number of rainy days is November (12.8 days).
The month with the least rainy days is February (7 days).
Average snowfall in September
Courniou, France
- Average snowfall in September: 0mm
The month with the highest snowfall is March (7mm).
The months with the least snowfall are January, February, April, May, June, July, August, September, October, November and December (0mm).
Average snowfall days in September
Courniou, France
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January, February, March and December (0.2 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Courniou, France
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 9h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 48min).
The month with the least sunshine is November (Average sunshine: 5h and 42min).
Average sunshine days in September
Courniou, France
- Average sunshine days in September: 21.1 days
The months with the most sunshine days are August and September (21.1 days).
The month with the least sunshine days is November (14.2 days).
Average UV index in September
Courniou, France
- Average UV index in September: 5
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Courniou, France
- Average cloud cover in September: 23
The month with the most cloud cover is November (Cloud cover 39).
The month with the least cloud cover is July (Cloud cover 15).
Average visibility in September
Courniou, France
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and December (10km).
The months with the lowest visibility are January and November (9km).
