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
The beginning of September brings a minor change in the average high-temperature, shifting from a warm 27.7°C (81.9°F) in August to a still moderately hot 23.5°C (74.3°F). Saint-Germain-du-Bel-Air undergoes a major shift from daytime highs, averaging a cool 11.3°C (52.3°F) during the night in September.Humidity
The average relative humidity in September is 72%.Rainfall
In Saint-Germain-du-Bel-Air, during September, the rain falls for 9.8 days and regularly aggregates up to 24mm (0.94") of precipitation. Throughout the year, there are 148 rainfall days, and 391mm (15.39") of precipitation is accumulated.Snowfall
In Saint-Germain-du-Bel-Air, snow does not fall in March through October.Daylight
In September, the average length of the day in Saint-Germain-du-Bel-Air, France, is 12h and 31min.On the first day of September in Saint-Germain-du-Bel-Air, sunrise is at 07:17 and sunset at 20:30. On the last day of the month, sunrise is at 07:51 and sunset at 19:36 CEST.
Sunshine
In September, the average sunshine is 8.5h.UV index
In Saint-Germain-du-Bel-Air, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Ensure safety - Recommendations to avert sunburn are presented. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Saint-Germain-du-Bel-Air?
What is the average humidity in September in Saint-Germain-du-Bel-Air?
How many days does it rain in September in Saint-Germain-du-Bel-Air?
When it does not snow in Saint-Germain-du-Bel-Air?
What is the average length of the day in September in Saint-Germain-du-Bel-Air?
What time are sunrise and sunset in September in Saint-Germain-du-Bel-Air?
How many hours of sunshine does Saint-Germain-du-Bel-Air have in September?
What is the UV index reading in September in Saint-Germain-du-Bel-Air?
Average temperature in September
Saint-Germain-du-Bel-Air, France
- Average high temperature in September: 23.5°C
The warmest month (with the highest average high temperature) is August (27.7°C).
The month with the lowest average high temperature is January (7.8°C).
- Average low temperature in September: 11.3°C
The month with the highest average low temperature is July (14.4°C).
The coldest month (with the lowest average low temperature) is February (1.2°C).
Average pressure in September
Saint-Germain-du-Bel-Air, France
- Average pressure in September: 1018.4mbar
The month with the highest atmospheric pressure is December (1021.5mbar).
The month with the lowest atmospheric pressure is November (1015.5mbar).
Average wind speed in September
Saint-Germain-du-Bel-Air, France
- Average wind speed in September: 7.1km/h
The windiest month (with the highest average wind speed) is March (9.8km/h).
The calmest months (with the lowest average wind speed) are August and September (7.1km/h).
Average humidity in September
Saint-Germain-du-Bel-Air, France
- Average humidity in September: 72%
The months with the highest relative humidity are January, November and December (87%).
The month with the lowest relative humidity is August (68%).
Average rainfall in September
Saint-Germain-du-Bel-Air, France
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is November (42mm).
The driest month (with the least rainfall) is July (23mm).
Average rainfall days in September
Saint-Germain-du-Bel-Air, France
- Average rainfall days in September: 9.8 days
The month with the highest number of rainy days is May (14.6 days).
The months with the least rainy days are August and September (9.8 days).
Average snowfall in September
Saint-Germain-du-Bel-Air, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (6mm).
The months with the least snowfall are March, April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Saint-Germain-du-Bel-Air, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.8 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
Saint-Germain-du-Bel-Air, France
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The months with the least sunshine are January and November (Average sunshine: 4h and 30min).
Average sunshine days in September
Saint-Germain-du-Bel-Air, France
- Average sunshine days in September: 18.8 days
The month with the most sunshine days is September (18.8 days).
The month with the least sunshine days is November (13.4 days).
Average UV index in September
Saint-Germain-du-Bel-Air, France
- Average UV index in September: 4
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Saint-Germain-du-Bel-Air, France
- Average cloud cover in September: 31
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Saint-Germain-du-Bel-Air, France
- Average visibility in September: 8km
The months with the highest visibility are July and August (9km).
The months with the lowest visibility are January, November and December (7km).
