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 transition to September results in a modest reduction in average high-temperature, moving from a warm 26°C (78.8°F) in August to an agreeable 21.5°C (70.7°F). Nightly temperatures drop to an average low of 11.1°C (52°F) in September.Humidity
The average relative humidity in September in Sonnay is 76%.Rainfall
In September, in Sonnay, the rain falls for 10.2 days. Throughout September, 31mm (1.22") of precipitation is accumulated. In Sonnay, France, during the entire year, the rain falls for 151.5 days and collects up to 504mm (19.84") of precipitation.Snowfall
In Sonnay, France, snow does not fall in April through September.Daylight
In September, the average length of the day in Sonnay is 12h and 32min.On the first day of the month, sunrise is at 07:02 and sunset at 20:17. On the last day of September, sunrise is at 07:37 and sunset at 19:22 CEST.
Sunshine
The average sunshine in September is 8.3h.UV index
The average daily maximum UV index in September in Sonnay is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Guard yourself - An obligation to protect skin and eyes from harm exists. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. 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
What is the temperature in September in Sonnay?
What is the average humidity in September in Sonnay?
How many days does it rain in September in Sonnay?
When it does not snow in Sonnay?
Does it snow in Sonnay in September?
What is the average length of the day in September in Sonnay?
When is the sunrise / sunset in September in Sonnay?
How long on average sun shines in September in Sonnay?
What is the UV index reading in September in Sonnay?
Average temperature in September
Sonnay, France
- Average high temperature in September: 21.5°C
The warmest month (with the highest average high temperature) is August (26°C).
The month with the lowest average high temperature is January (5.3°C).
- Average low temperature in September: 11.1°C
The month with the highest average low temperature is July (14.4°C).
The coldest months (with the lowest average low temperature) are January and February (0.2°C).
Average pressure in September
Sonnay, France
- Average pressure in September: 1018.4mbar
The month with the highest atmospheric pressure is December (1021.2mbar).
The month with the lowest atmospheric pressure is April (1015.3mbar).
Average wind speed in September
Sonnay, France
- Average wind speed in September: 9.2km/h
The windiest month (with the highest average wind speed) is February (12.6km/h).
The calmest month (with the lowest average wind speed) is September (9.2km/h).
Average humidity in September
Sonnay, France
- Average humidity in September: 76%
The month with the highest relative humidity is December (86%).
The month with the lowest relative humidity is August (71%).
Average rainfall in September
Sonnay, France
- Average rainfall in September: 31mm
The wettest month (with the highest rainfall) is November (56mm).
The driest month (with the least rainfall) is February (25mm).
Average rainfall days in September
Sonnay, France
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is September (10.2 days).
Average snowfall in September
Sonnay, France
- Average snowfall in September: 0mm
The month with the highest snowfall is November (79mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in September
Sonnay, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Sonnay, 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 August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in September
Sonnay, France
- Average sunshine days in September: 16.5 days
The month with the most sunshine days is August (17.4 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in September
Sonnay, France
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Sonnay, France
- Average cloud cover in September: 35
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Sonnay, France
- Average visibility in September: 8km
The months with the highest visibility are February, March, April, May, June, July and August (9km).
The months with the lowest visibility are January, September, October, November and December (8km).
