September weather forecastRolleville, France
September
Weather in September
September, the first month of the autumn in Rolleville, is still a refreshing month, with an average temperature varying between 17.9°C (64.2°F) and 14.6°C (58.3°F).Temperature
Transitioning into September, Rolleville experiences an average high-temperature of a still refreshing 17.9°C (64.2°F), marking a minor shift from the preceding month. The nights of September anticipate a slight dip from daytime high temperatures, settling to an average low-temperature of 14.6°C (58.3°F).Humidity
With an average relative humidity of 78%, September is the least humid month in Rolleville.Rainfall
In September, the rain falls for 14 days. Throughout September, 37mm (1.46") of precipitation is accumulated. Throughout the year, there are 185.9 rainfall days, and 521mm (20.51") of precipitation is accumulated.Snowfall
May through November are months without snowfall in Rolleville, France.Daylight
In Rolleville, the average length of the day in September is 12h and 36min.On the first day of the month, sunrise is at 07:15 and sunset at 20:42. On the last day of September, in Rolleville, sunrise is at 07:58 and sunset at 19:39 CEST.
Sunshine
In Rolleville, the average sunshine in September is 7.3h.UV index
In September, the average daily maximum UV index in Rolleville is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In September, a regular UV index of 4 translates into these guidelines:
Take precautions - Protection against skin and eye damage is obliged. Around midday, solar radiation is most harmful; hence, exposure should be limited. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Rolleville, France
- Average high temperature in September: 17.9°C
The warmest month (with the highest average high temperature) is August (19.3°C).
The months with the lowest average high temperature are January and February (8.1°C).
- Average low temperature in September: 14.6°C
The month with the highest average low temperature is August (16°C).
The coldest month (with the lowest average low temperature) is February (5.2°C).
Average pressure in September
Rolleville, France
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is September (1018mbar).
The month with the lowest atmospheric pressure is November (1012.2mbar).
Average wind speed in September
Rolleville, France
- Average wind speed in September: 20.2km/h
The windiest month (with the highest average wind speed) is December (29.2km/h).
The calmest months (with the lowest average wind speed) are July and August (18km/h).
Average humidity in September
Rolleville, France
- Average humidity in September: 78%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is September (78%).
Average rainfall in September
Rolleville, France
- Average rainfall in September: 37mm
The wettest months (with the highest rainfall) are November and December (58mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in September
Rolleville, France
- Average rainfall days in September: 14 days
The month with the highest number of rainy days is December (18.5 days).
The month with the least rainy days is April (12.6 days).
Average snowfall in September
Rolleville, France
- Average snowfall in September: 0mm
The month with the highest snowfall is January (6mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Rolleville, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (1.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Rolleville, France
- Average daylight in September: 12h and 36min
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 18min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is November (Average sunshine: 3h and 54min).
Average sunshine days in September
Rolleville, France
- Average sunshine days in September: 13.1 days
The month with the most sunshine days is May (14.3 days).
The month with the least sunshine days is December (8.9 days).
Average UV index in September
Rolleville, 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 and November (UV index 2).
Average cloud cover in September
Rolleville, France
- Average cloud cover in September: 42
The months with the most cloud cover are November and December (Cloud cover 61).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in September
Rolleville, France
- Average visibility in September: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
