September weather forecastFontoy, France
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Fontoy, France, with an average temperature ranging between max 19.2°C (66.6°F) and min 9.5°C (49.1°F).Temperature
The average high-temperature slightly decreases in September, shifting from a warm 23.1°C (73.6°F) in August to an enjoyable 19.2°C (66.6°F). During September, Fontoy sees a mean low-temperature of 9.5°C (49.1°F).Humidity
The average relative humidity in September is 79%.Rainfall
In Fontoy, in September, it is raining for 11.7 days, with typically 40mm (1.57") of accumulated precipitation. Throughout the year, in Fontoy, there are 185.5 rainfall days, and 593mm (23.35") of precipitation is accumulated.Snowfall
April through September are months without snowfall in Fontoy.Daylight
In Fontoy, the average length of the day in September is 12h and 36min.On the first day of the month, sunrise is at 06:52 and sunset at 20:18. On the last day of September, sunrise is at 07:35 and sunset at 19:16 CEST.
Sunshine
The average sunshine in September is 8.1h.UV index
The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: In September, the UV index of 3 transforms into the following advice:
Heed the precautions - Suggestions to avoid sunburn are made. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. 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
Fontoy, France
- Average high temperature in September: 19.2°C
The warmest month (with the highest average high temperature) is August (23.1°C).
The month with the lowest average high temperature is January (3.5°C).
- Average low temperature in September: 9.5°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (-0.7°C).
Average pressure in September
Fontoy, France
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is December (1018.6mbar).
The month with the lowest atmospheric pressure is November (1014.2mbar).
Average wind speed in September
Fontoy, France
- Average wind speed in September: 10.1km/h
The windiest month (with the highest average wind speed) is February (15.3km/h).
The calmest month (with the lowest average wind speed) is August (9.6km/h).
Average humidity in September
Fontoy, France
- Average humidity in September: 79%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Fontoy, France
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is December (71mm).
The driest month (with the least rainfall) is April (36mm).
Average rainfall days in September
Fontoy, France
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is September (11.7 days).
Average snowfall in September
Fontoy, France
- Average snowfall in September: 0mm
The month with the highest snowfall is December (55mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in September
Fontoy, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Fontoy, France
- Average daylight in September: 12h and 36min
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 18min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).
Average sunshine days in September
Fontoy, France
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is December (8.4 days).
Average UV index in September
Fontoy, France
- Average UV index in September: 3
The months with the highest UV index are June and 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
Fontoy, France
- Average cloud cover in September: 39
The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in September
Fontoy, France
- Average visibility in September: 8km
The months with the highest visibility are March, April, May, June, July and August (9km).
The months with the lowest visibility are January, February, September, October, November and December (8km).
