September weather forecastGrolsheim, Germany
September
Weather in September
The first month of the autumn, September, is still a comfortable month in Grolsheim, Germany, with temperature in the range of an average low of 9.7°C (49.5°F) and an average high of 19.3°C (66.7°F).Temperature
The start of September involves a subtle temperature drop, shifting from a moderately hot 23.8°C (74.8°F) in August to a refreshing 19.3°C (66.7°F). An average low-temperature of 9.7°C (49.5°F) is recorded in the month of September.Humidity
In September, the average relative humidity in Grolsheim is 78%.Rainfall
In Grolsheim, in September, it is raining for 12.2 days, with typically 28mm (1.1") of accumulated precipitation. In Grolsheim, during the entire year, the rain falls for 176 days and collects up to 462mm (18.19") of precipitation.Snowfall
May through October are months without snowfall in Grolsheim.Daylight
In September, the average length of the day in Grolsheim is 12h and 37min.On the first day of September in Grolsheim, sunrise is at 06:44 and sunset at 20:12. On the last day of the month, sunrise is at 07:27 and sunset at 19:08 CEST.
Sunshine
The average sunshine in September is 8.4h.UV index
The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: A daily high UV index of 4 in September leads to these guidelines:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Grolsheim, Germany
- Average high temperature in September: 19.3°C
The warmest month (with the highest average high temperature) is July (24.4°C).
The month with the lowest average high temperature is January (3.3°C).
- Average low temperature in September: 9.7°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 (-1.3°C).
Average pressure in September
Grolsheim, Germany
- Average pressure in September: 1018.1mbar
The month with the highest atmospheric pressure is December (1018.4mbar).
The month with the lowest atmospheric pressure is November (1014.5mbar).
Average wind speed in September
Grolsheim, Germany
- Average wind speed in September: 8.9km/h
The windiest months (with the highest average wind speed) are February and March (12.1km/h).
The calmest month (with the lowest average wind speed) is August (8.7km/h).
Average humidity in September
Grolsheim, Germany
- Average humidity in September: 78%
The months with the highest relative humidity are January and December (89%).
The months with the lowest relative humidity are July and August (72%).
Average rainfall in September
Grolsheim, Germany
- Average rainfall in September: 28mm
The wettest month (with the highest rainfall) is July (58mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in September
Grolsheim, Germany
- Average rainfall days in September: 12.2 days
The month with the highest number of rainy days is July (18.8 days).
The month with the least rainy days is February (11.9 days).
Average snowfall in September
Grolsheim, Germany
- Average snowfall in September: 0mm
The months with the highest snowfall are January and February (44mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Grolsheim, Germany
- 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
Grolsheim, Germany
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 18min).
The month with the shortest days is December (Average daylight: 8h and 12min).
- Average sunshine in September: 8h and 24min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in September
Grolsheim, Germany
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is October (15 days).
The month with the least sunshine days is December (9.2 days).
Average UV index in September
Grolsheim, Germany
- 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, November and December (UV index 2).
Average cloud cover in September
Grolsheim, Germany
- Average cloud cover in September: 39
The month with the most cloud cover is December (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in September
Grolsheim, Germany
- 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, November and December (7km).
