September weather forecastMulhouse, France
September
Weather in September
September marks the start of autumn in Mulhouse. The month introduces cooler days and fresh, crisp evenings, making it the ideal time for sightseeing. With decreasing rain and condensation, the weather is less humid, creating a relaxing atmosphere. Temperature highs average 19.9°C (67.8°F), and lows drop to about 9.6°C (49.3°F). As the year moves into its last quarter, September presents Mulhouse in distinct autumn shades.Temperature
Start of September brings a slight shift in the average high-temperature, dipping a bit from August's warm 24.1°C (75.4°F) to an enjoyable 19.9°C (67.8°F). Throughout September, Mulhouse anticipates an average low-temperature of 9.6°C (49.3°F).Humidity
In September, the average relative humidity is 79%.Rainfall
September is the month with the least rainfall. Rain falls for 12.4 days and accumulates 33mm (1.3") of precipitation.Snowfall
In Mulhouse, snow does not fall in April through September.Daylight
The average length of the day in September in Mulhouse, France, is 12h and 34min.On the first day of September, sunrise is at 06:49 and sunset at 20:11. On the last day of the month, sunrise is at 07:29 and sunset at 19:11 CEST.
Sunshine
The average sunshine in September is 8.9h.UV index
In September, the average daily maximum UV index in Mulhouse is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 4 suggests this advice:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Mulhouse, France
- Average high temperature in September: 19.9°C
The warmest month (with the highest average high temperature) is August (24.1°C).
The month with the lowest average high temperature is January (3.8°C).
- Average low temperature in September: 9.6°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 (-1.7°C).
Average pressure in September
Mulhouse, France
- Average pressure in September: 1018.6mbar
The month with the highest atmospheric pressure is December (1020.6mbar).
The month with the lowest atmospheric pressure is November (1015.6mbar).
Average wind speed in September
Mulhouse, France
- Average wind speed in September: 7.2km/h
The windiest month (with the highest average wind speed) is February (10.1km/h).
The calmest month (with the lowest average wind speed) is August (6.7km/h).
Average humidity in September
Mulhouse, France
- Average humidity in September: 79%
The month with the highest relative humidity is January (86%).
The months with the lowest relative humidity are April and August (76%).
Average rainfall in September
Mulhouse, France
- Average rainfall in September: 33mm
The wettest month (with the highest rainfall) is June (82mm).
The driest month (with the least rainfall) is September (33mm).
Average rainfall days in September
Mulhouse, France
- Average rainfall days in September: 12.4 days
The month with the highest number of rainy days is May (20.8 days).
The month with the least rainy days is October (12.2 days).
Average snowfall in September
Mulhouse, France
- Average snowfall in September: 0mm
The month with the highest snowfall is December (60mm).
The months with the least snowfall are April, May, June, July, August and September (0mm).
Average snowfall days in September
Mulhouse, France
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.3 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
Mulhouse, France
- Average daylight in September: 12h and 36min
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 54min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in September
Mulhouse, France
- Average sunshine days in September: 14.5 days
The month with the most sunshine days is October (16 days).
The month with the least sunshine days is May (7.5 days).
Average UV index in September
Mulhouse, 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
Mulhouse, France
- Average cloud cover in September: 34
The months with the most cloud cover are January and December (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in September
Mulhouse, France
- Average visibility in September: 8km
The months with the highest visibility are March, April, May, June, July, August and October (9km).
The months with the lowest visibility are January, February, September, November and December (8km).
