September weather forecastBietlenheim, France
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Bietlenheim, France, with an average temperature varying between 20.5°C (68.9°F) and 10°C (50°F).Temperature
The shift from August to September includes a small decrease in the average high-temperature, from a warm 24.9°C (76.8°F) to a pleasant 20.5°C (68.9°F). Bietlenheim's nights in September experience an average temperature drop to a cool 10°C (50°F).Humidity
The average relative humidity in September in Bietlenheim is 76%.Rainfall
September is the month with the least rainfall in Bietlenheim, France. Rain falls for 10.5 days and accumulates 26mm (1.02") of precipitation.Snowfall
April through September are months without snowfall.Daylight
In Bietlenheim, the average length of the day in September is 12h and 35min.On the first day of September, sunrise is at 06:46 and sunset at 20:10. On the last day of the month, sunrise is at 07:27 and sunset at 19:09 CEST.
Sunshine
In September, the average sunshine in Bietlenheim is 8.9h.UV index
In Bietlenheim, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes 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 sun damage is advised. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bietlenheim, France
- Average high temperature in September: 20.5°C
The warmest month (with the highest average high temperature) is August (24.9°C).
The month with the lowest average high temperature is January (4.3°C).
- Average low temperature in September: 10°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (-0.7°C).
Average pressure in September
Bietlenheim, France
- Average pressure in September: 1018.4mbar
The month with the highest atmospheric pressure is December (1019.8mbar).
The month with the lowest atmospheric pressure is November (1015.2mbar).
Average wind speed in September
Bietlenheim, France
- Average wind speed in September: 7.7km/h
The windiest month (with the highest average wind speed) is February (11km/h).
The calmest month (with the lowest average wind speed) is August (7.4km/h).
Average humidity in September
Bietlenheim, France
- Average humidity in September: 76%
The months with the highest relative humidity are January and December (86%).
The months with the lowest relative humidity are April, July and August (73%).
Average rainfall in September
Bietlenheim, France
- Average rainfall in September: 26mm
The wettest months (with the highest rainfall) are June and July (56mm).
The driest month (with the least rainfall) is September (26mm).
Average rainfall days in September
Bietlenheim, France
- Average rainfall days in September: 10.5 days
The months with the highest number of rainy days are May and July (17.1 days).
The month with the least rainy days is September (10.5 days).
Average snowfall in September
Bietlenheim, France
- Average snowfall in September: 0mm
The month with the highest snowfall is December (40mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in September
Bietlenheim, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.3 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
Bietlenheim, France
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 6min).
The month with the shortest days is December (Average daylight: 8h and 24min).
- Average sunshine in September: 8h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in September
Bietlenheim, France
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is October (17.3 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in September
Bietlenheim, France
- Average UV index in September: 4
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Bietlenheim, France
- Average cloud cover in September: 33
The months with the most cloud cover are January and December (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Bietlenheim, France
- Average visibility in September: 9km
The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (9km).
The months with the lowest visibility are January and December (8km).
