September weather forecastGrans, France
September
Weather in September
September, the first month of the autumn in Grans, is also a moderately hot month, with temperature in the range of an average low of 15.9°C (60.6°F) and an average high of 25.1°C (77.2°F).Temperature
With the onset of September, the average high-temperature subtly recedes from August's warm 29.3°C (84.7°F) to a still moderately hot 25.1°C (77.2°F). An average low-temperature of 15.9°C (60.6°F) is expected in Grans during September.Humidity
In September, the average relative humidity is 63%.Rainfall
In Grans, in September, it is raining for 6.8 days, with typically 24mm (0.94") of accumulated precipitation. Throughout the year, there are 104.8 rainfall days, and 402mm (15.83") of precipitation is accumulated.Snowfall
In Grans, snow does not fall in April through November.Daylight
In Grans, France, the average length of the day in September is 12h and 30min.On the first day of the month, sunrise is at 07:04 and sunset at 20:15. On the last day of September, sunrise is at 07:36 and sunset at 19:22 CEST.
Sunshine
In Grans, the average sunshine in September is 9.5h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Grans, France
- Average high temperature in September: 25.1°C
The warmest month (with the highest average high temperature) is July (29.6°C).
The month with the lowest average high temperature is January (9.7°C).
- Average low temperature in September: 15.9°C
The month with the highest average low temperature is July (19.4°C).
The coldest month (with the lowest average low temperature) is February (4°C).
Average pressure in September
Grans, France
- Average pressure in September: 1016.9mbar
The month with the highest atmospheric pressure is December (1019.7mbar).
The months with the lowest atmospheric pressure are April and November (1014.6mbar).
Average wind speed in September
Grans, France
- Average wind speed in September: 13km/h
The windiest month (with the highest average wind speed) is February (17.9km/h).
The calmest month (with the lowest average wind speed) is August (12.8km/h).
Average humidity in September
Grans, France
- Average humidity in September: 63%
The months with the highest relative humidity are November and December (76%).
The months with the lowest relative humidity are July and August (57%).
Average rainfall in September
Grans, France
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is November (69mm).
The driest months (with the least rainfall) are July and August (16mm).
Average rainfall days in September
Grans, France
- Average rainfall days in September: 6.8 days
The month with the highest number of rainy days is November (11.1 days).
The months with the least rainy days are July and August (5.9 days).
Average snowfall in September
Grans, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (7mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Grans, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.8 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
Grans, 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 30min
The month with the most sunshine is July (Average sunshine: 12h and 0min).
The months with the least sunshine are January and November (Average sunshine: 6h and 6min).
Average sunshine days in September
Grans, France
- Average sunshine days in September: 21.4 days
The months with the most sunshine days are July and August (22.3 days).
The month with the least sunshine days is February (17.2 days).
Average UV index in September
Grans, France
- Average UV index in September: 5
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Grans, France
- Average cloud cover in September: 17
The month with the most cloud cover is November (Cloud cover 35).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in September
Grans, France
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
