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 beginning of September subtly marks a decrease in the average high-temperature, transitioning from a moderately hot 23.8°C (74.8°F) in August to an agreeable 20.3°C (68.5°F). During the September nights, an average temperature of 10.9°C (51.6°F) is observed.Humidity
The average relative humidity in September in Terny-Sorny is 76%.Rainfall
The month with the least rainfall is September, when the rain falls for 13 days and typically collects 28mm (1.1") of precipitation.Snowfall
April through October are months without snowfall in Terny-Sorny.Daylight
In September, the average length of the day in Terny-Sorny is 12h and 36min.On the first day of September, sunrise is at 07:03 and sunset at 20:29. On the last day of the month, sunrise is at 07:45 and sunset at 19:27 CEST.
Sunshine
In September, the average sunshine in Terny-Sorny is 7.6h.UV index
In September, the average daily maximum UV index in Terny-Sorny is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In September, the maximum UV index of 4 suggests this advice:
Heed the precautions - Protecting the skin and eyes from damage is compulsory. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Frequently asked questions
What is the average September temperature in Terny-Sorny?
What is the average humidity in September in Terny-Sorny?
What is the driest month in Terny-Sorny?
How much does it rain in Terny-Sorny in September?
When it does not snow in Terny-Sorny?
How many hours of daylight does Terny-Sorny have in September?
What time are sunrise and sunset in September in Terny-Sorny?
How many hours of sunshine does Terny-Sorny have in September?
What is the UV index intensity in September in Terny-Sorny?
Average temperature in September
Terny-Sorny, France
- Average high temperature in September: 20.3°C
The warmest month (with the highest average high temperature) is August (23.8°C).
The month with the lowest average high temperature is January (5.8°C).
- Average low temperature in September: 10.9°C
The month with the highest average low temperature is August (13.6°C).
The coldest month (with the lowest average low temperature) is January (1.2°C).
Average pressure in September
Terny-Sorny, France
- Average pressure in September: 1017.9mbar
The month with the highest atmospheric pressure is September (1017.9mbar).
The month with the lowest atmospheric pressure is November (1013.1mbar).
Average wind speed in September
Terny-Sorny, France
- Average wind speed in September: 10.7km/h
The windiest month (with the highest average wind speed) is February (16.2km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).
Average humidity in September
Terny-Sorny, France
- Average humidity in September: 76%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (74%).
Average rainfall in September
Terny-Sorny, France
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is December (65mm).
The driest month (with the least rainfall) is September (28mm).
Average rainfall days in September
Terny-Sorny, France
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is May (19.5 days).
The month with the least rainy days is September (13 days).
Average snowfall in September
Terny-Sorny, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (38mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Terny-Sorny, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.8 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
Terny-Sorny, France
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 12min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in September: 7h and 4min
The month with the most sunshine is August (Average sunshine: 9h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in September
Terny-Sorny, France
- Average sunshine days in September: 13.6 days
The month with the most sunshine days is September (13.6 days).
The month with the least sunshine days is June (8.1 days).
Average UV index in September
Terny-Sorny, France
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Terny-Sorny, France
- Average cloud cover in September: 39
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are August and September (Cloud cover 39).
Average visibility in September
Terny-Sorny, France
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September and October (9km).
The months with the lowest visibility are January, November and December (8km).
Terny-Sorny, France
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