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 arrival of September suggests a slight decrease in the average high-temperature, moving from a warm 25.2°C (77.4°F) in August to a pleasant 21.5°C (70.7°F). During September, Cieux's temperature falls to a steady low-temperature average of 10.2°C (50.4°F).Humidity
In September, the average relative humidity is 75%.Rainfall
In September, in Cieux, the rain falls for 10.2 days. Throughout September, 28mm (1.1") of precipitation is accumulated. Throughout the year, there are 170.5 rainfall days, and 577mm (22.72") of precipitation is accumulated.Snowfall
May through September are months without snowfall.Daylight
In Cieux, the average length of the day in September is 12h and 32min.On the first day of September, sunrise is at 07:17 and sunset at 20:34. On the last day of the month, sunrise is at 07:53 and sunset at 19:37 CEST.
Sunshine
The average sunshine in September is 8.1h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for the average person.Note: In September, the UV index of 4 transforms into the following advice:
Take precautions - Protection against sun damage is advised. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Frequently asked questions
What is the average September temperature in Cieux?
What is the average humidity in September in Cieux?
How many days does it rain in September in Cieux?
When it does not snow in Cieux?
Does it snow in Cieux in September?
What is the average length of the day in September in Cieux?
When is the sunrise / sunset in September in Cieux?
How long on average sun shines in September in Cieux?
What is the UV index intensity in September in Cieux?
Average temperature in September
Cieux, France
- Average high temperature in September: 21.5°C
The warmest month (with the highest average high temperature) is August (25.2°C).
The month with the lowest average high temperature is January (6.4°C).
- Average low temperature in September: 10.2°C
The month with the highest average low temperature is July (13.3°C).
The coldest month (with the lowest average low temperature) is February (0.4°C).
Average pressure in September
Cieux, France
- Average pressure in September: 1018.3mbar
The month with the highest atmospheric pressure is December (1020.8mbar).
The month with the lowest atmospheric pressure is November (1014.9mbar).
Average wind speed in September
Cieux, France
- Average wind speed in September: 8.7km/h
The windiest month (with the highest average wind speed) is February (13.2km/h).
The calmest month (with the lowest average wind speed) is August (7.8km/h).
Average humidity in September
Cieux, France
- Average humidity in September: 75%
The months with the highest relative humidity are November and December (89%).
The month with the lowest relative humidity is August (73%).
Average rainfall in September
Cieux, France
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is November (69mm).
The driest month (with the least rainfall) is July (26mm).
Average rainfall days in September
Cieux, France
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is September (10.2 days).
Average snowfall in September
Cieux, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (39mm).
The months with the least snowfall are May, June, July, August and September (0mm).
Average snowfall days in September
Cieux, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.6 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
Cieux, France
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in September: 8h and 1min
The month with the most sunshine is July (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Cieux, France
- Average sunshine days in September: 18.4 days
The month with the most sunshine days is September (18.4 days).
The month with the least sunshine days is November (10.2 days).
Average UV index in September
Cieux, 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
Cieux, France
- Average cloud cover in September: 36
The months with the most cloud cover are January and November (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Cieux, France
- Average visibility in September: 8km
The months with the highest visibility are February, March, April, July, August, September, October and December (8km).
The months with the lowest visibility are January, May, June and November (7km).
Cieux, France
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