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
September sees a slight reduction in average high-temperature, with a shift from a warm 24.2°C (75.6°F) in August to a pleasant 20°C (68°F). The average low-temperature during September nights is a frosty 9.5°C (49.1°F).Humidity
In Rillans, France, the average relative humidity in September is 81%.Rainfall
The month with the least rainfall is September, when the rain falls for 11.5 days and typically collects 30mm (1.18") of precipitation.Snowfall
In Rillans, snow does not fall in April through September.Daylight
The average length of the day in September in Rillans is 12h and 34min.On the first day of the month, sunrise is at 06:54 and sunset at 20:14. On the last day of September, in Rillans, sunrise is at 07:32 and sunset at 19:15 CEST.
Sunshine
In Rillans, the average sunshine in September is 8.6h.UV index
The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily high UV index of 4 in September translates into this advice:
Exercise prevention - Warding off sunburn is urged. The Sun's radiation is especially intense around midday; try to stay in shade during this period. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Rillans?
What is the average humidity in September in Rillans?
What is the driest month in Rillans?
How much does it rain in Rillans in September?
When it does not snow in Rillans?
Does it snow in Rillans in September?
What is the average length of the day in September in Rillans?
When is the sunrise / sunset in September in Rillans?
How long on average sun shines in September in Rillans?
What is the UV index intensity in September in Rillans?
Average temperature in September
Rillans, France
- Average high temperature in September: 20°C
The warmest month (with the highest average high temperature) is August (24.2°C).
The month with the lowest average high temperature is January (4.2°C).
- Average low temperature in September: 9.5°C
The months with the highest average low temperature are July and August (13°C).
The coldest month (with the lowest average low temperature) is January (-0.5°C).
Average pressure in September
Rillans, France
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is December (1020.5mbar).
The month with the lowest atmospheric pressure is November (1015.4mbar).
Average wind speed in September
Rillans, France
- Average wind speed in September: 8.7km/h
The windiest month (with the highest average wind speed) is February (13.1km/h).
The calmest month (with the lowest average wind speed) is August (7.9km/h).
Average humidity in September
Rillans, France
- Average humidity in September: 81%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (78%).
Average rainfall in September
Rillans, France
- Average rainfall in September: 30mm
The wettest month (with the highest rainfall) is December (84mm).
The driest month (with the least rainfall) is September (30mm).
Average rainfall days in September
Rillans, France
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is September (11.5 days).
Average snowfall in September
Rillans, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (81mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in September
Rillans, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.1 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Rillans, France
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in September: 8h and 4min
The months with the most sunshine are July and August (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 18min).
Average sunshine days in September
Rillans, France
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is October (16.9 days).
The month with the least sunshine days is June (7.9 days).
Average UV index in September
Rillans, France
- Average UV index in September: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Rillans, France
- Average cloud cover in September: 34
The month with the most cloud cover is December (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Rillans, France
- Average visibility in September: 8km
The months with the highest visibility are February, March, April, July and August (9km).
The months with the lowest visibility are January, May, June, September, October, November and December (8km).
