September weather forecastMelles, France
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Melles, France, with an average temperature varying between 7.5°C (45.5°F) and 18°C (64.4°F).Temperature
September's onset corresponds with a subtle shift in the average high-temperature, slightly moving from an agreeable 21.7°C (71.1°F) in August to an enjoyable 18°C (64.4°F). During September, Melles consistently records a temperature low averaging a chilly 7.5°C (45.5°F).Humidity
In Melles, France, the average relative humidity in September is 73%.Rainfall
In September, the rain falls for 12.8 days. Throughout September, 45mm (1.77") of precipitation is accumulated. Throughout the year, there are 149.7 rainfall days, and 817mm (32.17") of precipitation is accumulated.Snowfall
January through June, August through December are months with snowfall in Melles, France. In Melles, during September, snow falls for 0.4 days and regularly aggregates up to 20mm (0.79") of snow. Throughout the year, there are 90.2 snowfall days, and 2798mm (110.16") of snow is accumulated.Daylight
The average length of the day in September in Melles is 12h and 29min.On the first day of the month, sunrise is at 07:22 and sunset at 20:31. On the last day of September, sunrise is at 07:53 and sunset at 19:39 CEST.
Sunshine
In September, the average sunshine in Melles is 9.4h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the average person.Note: A maximum UV index of 4 in September translates into the following recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Melles, France
- Average high temperature in September: 18°C
The warmest months (with the highest average high temperature) are July and August (21.7°C).
The month with the lowest average high temperature is February (3.2°C).
- Average low temperature in September: 7.5°C
The month with the highest average low temperature is August (10.5°C).
The coldest month (with the lowest average low temperature) is February (-4.3°C).
Average pressure in September
Melles, France
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is December (1021.7mbar).
The month with the lowest atmospheric pressure is April (1015.2mbar).
Average wind speed in September
Melles, France
- Average wind speed in September: 5.7km/h
The windiest month (with the highest average wind speed) is February (8.8km/h).
The calmest month (with the lowest average wind speed) is August (5.6km/h).
Average humidity in September
Melles, France
- Average humidity in September: 73%
The months with the highest relative humidity are February and March (81%).
The months with the lowest relative humidity are July and August (70%).
Average rainfall in September
Melles, France
- Average rainfall in September: 45mm
The wettest month (with the highest rainfall) is May (94mm).
The driest month (with the least rainfall) is February (43mm).
Average rainfall days in September
Melles, France
- Average rainfall days in September: 12.8 days
The month with the highest number of rainy days is May (19.6 days).
The month with the least rainy days is January (5.9 days).
Average snowfall in September
Melles, France
- Average snowfall in September: 20mm
The month with the highest snowfall is January (479mm).
The month with the least snowfall is July (0mm).
Average snowfall days in September
Melles, France
- Average snowfall days in September: 0.4 days
The month with the highest number of snowfall days is January (15.3 days).
The month with the least snowfall days is July (0 days).
Average daylight in September /
Average sunshine in September
Melles, France
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in September: 9h and 24min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is November (Average sunshine: 6h and 24min).
Average sunshine days in September
Melles, France
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is October (17.1 days).
The month with the least sunshine days is June (6.9 days).
Average UV index in September
Melles, France
- Average UV index in September: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Melles, France
- Average cloud cover in September: 22
The month with the most cloud cover is April (Cloud cover 38).
The months with the least cloud cover are July, August and September (Cloud cover 22).
Average visibility in September
Melles, France
- Average visibility in September: 9km
The months with the highest visibility are February, March, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January and April (8km).
