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
Weather in September
Temperature
The shift from August to September is characterized by an average high-temperature of a still warm 23.3°C (73.9°F), not significantly different from the 26.1°C (79°F) of August. During September, the average low-temperature in Grassac is a fresh 12°C (53.6°F).Humidity
In September, the average relative humidity is 71%.Rainfall
In Grassac, in September, during 8.5 rainfall days, 23mm (0.91") of precipitation is typically accumulated. In Grassac, during the entire year, the rain falls for 160.6 days and collects up to 496mm (19.53") of precipitation.Snowfall
March through November are months without snowfall in Grassac, France.Daylight
The average length of the day in September in Grassac, France, is 12h and 32min.On the first day of the month, sunrise is at 07:20 and sunset at 20:36. On the last day of September, sunrise is at 07:56 and sunset at 19:40 CEST.
Sunshine
In Grassac, the average sunshine in September is 8.3h.UV index
The average daily maximum UV index in September in Grassac is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Put precautions into practice - Guidance to elude sunburn is provided. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Frequently asked questions
What are September temperatures in Grassac?
What is the average humidity in September in Grassac?
How many days does it rain in September in Grassac?
When it does not snow in Grassac?
How many hours of daylight does Grassac have in September?
When is the sunrise / sunset in September in Grassac?
How many hours of sunshine does Grassac have in September?
What is the UV index reading in September in Grassac?
Average temperature in September
Grassac, France
- Average high temperature in September: 23.3°C
The warmest month (with the highest average high temperature) is August (26.1°C).
The month with the lowest average high temperature is January (7.9°C).
- Average low temperature in September: 12°C
The month with the highest average low temperature is July (14.5°C).
The coldest month (with the lowest average low temperature) is February (2.5°C).
Average pressure in September
Grassac, France
- Average pressure in September: 1018.2mbar
The month with the highest atmospheric pressure is December (1020.6mbar).
The month with the lowest atmospheric pressure is November (1014.7mbar).
Average wind speed in September
Grassac, France
- Average wind speed in September: 10.6km/h
The windiest month (with the highest average wind speed) is February (15.5km/h).
The calmest month (with the lowest average wind speed) is August (9.6km/h).
Average humidity in September
Grassac, France
- Average humidity in September: 71%
The months with the highest relative humidity are January, November and December (86%).
The month with the lowest relative humidity is August (70%).
Average rainfall in September
Grassac, France
- Average rainfall in September: 23mm
The wettest month (with the highest rainfall) is November (67mm).
The driest month (with the least rainfall) is July (21mm).
Average rainfall days in September
Grassac, France
- Average rainfall days in September: 8.5 days
The month with the highest number of rainy days is May (16 days).
The month with the least rainy days is September (8.5 days).
Average snowfall in September
Grassac, France
- Average snowfall in September: 0mm
The month with the highest snowfall is December (5mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Grassac, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.3 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
Grassac, France
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is December (Average sunshine: 4h and 36min).
Average sunshine days in September
Grassac, France
- Average sunshine days in September: 19.7 days
The month with the most sunshine days is September (19.7 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in September
Grassac, France
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February and November (UV index 2).
Average cloud cover in September
Grassac, France
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in September
Grassac, France
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (9km).
The month with the lowest visibility is May (8km).
Grassac, France
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