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
September
Weather in September
Temperature
September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a moderately hot 26.2°C (79.2°F) in August to an agreeable 22.5°C (72.5°F). Nighttime temperature in Grasse dips to a mean of 15.3°C (59.5°F) during September.Humidity
In Grasse, the average relative humidity in September is 68%.Rainfall
In Grasse, in September, during 9.2 rainfall days, 25mm (0.98") of precipitation is typically accumulated. In Grasse, France, during the entire year, the rain falls for 116.3 days and collects up to 523mm (20.59") of precipitation.Snowfall
In Grasse, snow does not fall in April through November.Daylight
The average length of the day in September in Grasse is 12h and 30min.On the first day of September, sunrise is at 06:56 and sunset at 20:07. On the last day of the month, sunrise is at 07:29 and sunset at 19:14 CEST.
Sunshine
The average sunshine in September is 9.9h.UV index
In September, the average daily maximum UV index in Grasse is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The daily high UV index of 5 during September translates into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Grasse in September?
What is the average humidity in September in Grasse?
How much does it rain in Grasse in September?
When it does not snow in Grasse?
How many hours of daylight does Grasse have in September?
When is the sunrise / sunset in September in Grasse?
How many hours of sunshine does Grasse have in September?
How high is the UV index in September in Grasse?
Average temperature in September
Grasse, France
- Average high temperature in September: 22.5°C
The warmest months (with the highest average high temperature) are July and August (26.2°C).
The month with the lowest average high temperature is January (9.3°C).
- Average low temperature in September: 15.3°C
The month with the highest average low temperature is August (18.1°C).
The coldest month (with the lowest average low temperature) is January (3.3°C).
Average pressure in September
Grasse, France
- Average pressure in September: 1016mbar
The month with the highest atmospheric pressure is December (1018.6mbar).
The month with the lowest atmospheric pressure is April (1013.9mbar).
Average wind speed in September
Grasse, France
- Average wind speed in September: 8.8km/h
The windiest month (with the highest average wind speed) is March (11.4km/h).
The calmest month (with the lowest average wind speed) is August (8.1km/h).
Average humidity in September
Grasse, France
- Average humidity in September: 68%
The month with the highest relative humidity is November (72%).
The month with the lowest relative humidity is August (64%).
Average rainfall in September
Grasse, France
- Average rainfall in September: 25mm
The wettest month (with the highest rainfall) is November (119mm).
The driest month (with the least rainfall) is August (17mm).
Average rainfall days in September
Grasse, France
- Average rainfall days in September: 9.2 days
The month with the highest number of rainy days is May (13.2 days).
The month with the least rainy days is August (7.4 days).
Average snowfall in September
Grasse, France
- Average snowfall in September: 0mm
The month with the highest snowfall is February (19mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Grasse, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.6 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
Grasse, France
- Average daylight in September: 12h and 3min
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 5min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is November (Average sunshine: 6h and 30min).
Average sunshine days in September
Grasse, France
- Average sunshine days in September: 19 days
The months with the most sunshine days are October and December (21.2 days).
The month with the least sunshine days is May (15.2 days).
Average UV index in September
Grasse, France
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in September
Grasse, France
- Average cloud cover in September: 16
The months with the most cloud cover are February and November (Cloud cover 28).
The months with the least cloud cover are July and August (Cloud cover 11).
Average visibility in September
Grasse, France
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
