September weather forecastGratens, France
September
Weather in September
The first month of the autumn, September, is still a warm month in Gratens, France, with temperature in the range of an average high of 24.7°C (76.5°F) and an average low of 13.7°C (56.7°F).Temperature
September brings a slight decrease in the average high-temperature, shifting from a warm 28.4°C (83.1°F) in August to a still moderately hot 24.7°C (76.5°F). Gratens's average low-temperature is measured at a refreshing 13.7°C (56.7°F) during September.Humidity
In September, the average relative humidity is 67%.Rainfall
The month with the least rainfall in Gratens is September, when the rain falls for 10.7 days and typically collects 26mm (1.02") of precipitation.Snowfall
In Gratens, France, snow does not fall in April through October.Daylight
In Gratens, the average length of the day in September is 12h and 30min.On the first day of September, sunrise is at 07:20 and sunset at 20:30. On the last day of the month, sunrise is at 07:52 and sunset at 19:38 CEST.
Sunshine
In September, the average sunshine is 8.5h.UV index
The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: The average daily UV index of 5 in September transforms into the following instructions:
Heed the precautions - It is counselled to guard against solar damage. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Gratens, France
- Average high temperature in September: 24.7°C
The warmest month (with the highest average high temperature) is August (28.4°C).
The month with the lowest average high temperature is January (8.8°C).
- Average low temperature in September: 13.7°C
The month with the highest average low temperature is August (16.5°C).
The coldest month (with the lowest average low temperature) is February (2.7°C).
Average pressure in September
Gratens, France
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1021.7mbar).
The month with the lowest atmospheric pressure is April (1015.4mbar).
Average wind speed in September
Gratens, France
- Average wind speed in September: 9.7km/h
The windiest month (with the highest average wind speed) is March (13.7km/h).
The calmest months (with the lowest average wind speed) are August and September (9.7km/h).
Average humidity in September
Gratens, France
- Average humidity in September: 67%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is August (65%).
Average rainfall in September
Gratens, France
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is May (61mm).
The driest month (with the least rainfall) is September (26mm).
Average rainfall days in September
Gratens, France
- Average rainfall days in September: 10.7 days
The month with the highest number of rainy days is April (16.8 days).
The month with the least rainy days is September (10.7 days).
Average snowfall in September
Gratens, France
- Average snowfall in September: 0mm
The month with the highest snowfall is February (22mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Gratens, 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
Gratens, France
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 54min).
Average sunshine days in September
Gratens, France
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is October (18 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in September
Gratens, 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 and November (UV index 2).
Average cloud cover in September
Gratens, France
- Average cloud cover in September: 29
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Gratens, France
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, September, October, November and December (9km).
