September weather forecastHennemont, France
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Hennemont, France, with an average temperature varying between 19.2°C (66.6°F) and 9.5°C (49.1°F).Temperature
The arrival of September suggests a slight decrease in the average high-temperature, moving from a warm 23.1°C (73.6°F) in August to an enjoyable 19.2°C (66.6°F). In the month of September, Hennemont's average low-temperature falls to a frosty 9.5°C (49.1°F).Humidity
In September, the average relative humidity is 79%.Rainfall
In September, in Hennemont, the rain falls for 11.7 days. Throughout September, 40mm (1.57") of precipitation is accumulated. Throughout the year, in Hennemont, France, there are 185.5 rainfall days, and 593mm (23.35") of precipitation is accumulated.Snowfall
April through September are months without snowfall in Hennemont.Daylight
The average length of the day in September in Hennemont is 12h and 35min.On the first day of September in Hennemont, France, sunrise is at 06:54 and sunset at 20:19. On the last day of the month, sunrise is at 07:36 and sunset at 19:18 CEST.
Sunshine
The average sunshine in September is 8.1h.UV index
In Hennemont, the average daily maximum UV index in September is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: In September, the maximum UV index of 3 suggests this advice:
Make use of precautions - Shielding skin and eyes from injury is a requirement. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Hennemont, France
- Average high temperature in September: 19.2°C
The warmest month (with the highest average high temperature) is August (23.1°C).
The month with the lowest average high temperature is January (3.5°C).
- Average low temperature in September: 9.5°C
The month with the highest average low temperature is August (13.3°C).
The coldest month (with the lowest average low temperature) is January (-0.7°C).
Average pressure in September
Hennemont, France
- Average pressure in September: 1018mbar
The month with the highest atmospheric pressure is December (1018.6mbar).
The month with the lowest atmospheric pressure is November (1014.2mbar).
Average wind speed in September
Hennemont, France
- Average wind speed in September: 10.1km/h
The windiest month (with the highest average wind speed) is February (15.3km/h).
The calmest month (with the lowest average wind speed) is August (9.6km/h).
Average humidity in September
Hennemont, France
- Average humidity in September: 79%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Hennemont, France
- Average rainfall in September: 40mm
The wettest month (with the highest rainfall) is December (71mm).
The driest month (with the least rainfall) is April (36mm).
Average rainfall days in September
Hennemont, France
- Average rainfall days in September: 11.7 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is September (11.7 days).
Average snowfall in September
Hennemont, France
- Average snowfall in September: 0mm
The month with the highest snowfall is December (55mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in September
Hennemont, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.1 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
Hennemont, 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 18min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is December (Average sunshine: 3h and 12min).
Average sunshine days in September
Hennemont, France
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is September (15.5 days).
The month with the least sunshine days is December (8.4 days).
Average UV index in September
Hennemont, France
- Average UV index in September: 3
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
Hennemont, France
- Average cloud cover in September: 39
The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 36).
Average visibility in September
Hennemont, France
- Average visibility in September: 8km
The months with the highest visibility are March, April, May, June, July and August (9km).
The months with the lowest visibility are January, February, September, October, November and December (8km).
