September weather forecastGertwiller, France
September
Weather in September
The first month of the autumn, September, is also an agreeable month in Gertwiller, France, with an average temperature fluctuating between 10°C (50°F) and 20.5°C (68.9°F).Temperature
September is marked by a subtle drop in average high-temperatures, transitioning from a moderately hot 24.9°C (76.8°F) in August to a pleasant 20.5°C (68.9°F). Gertwiller reports an average nighttime low-temperature of 10°C (50°F) in September.Humidity
In September, the average relative humidity is 76%.Rainfall
September is the month with the least rainfall. Rain falls for 10.5 days and accumulates 26mm (1.02") of precipitation.Snowfall
In Gertwiller, snow does not fall in April through September.Daylight
In September, the average length of the day is 12h and 35min.On the first day of the month, sunrise is at 06:48 and sunset at 20:11. On the last day of September, in Gertwiller, sunrise is at 07:28 and sunset at 19:11 CEST.
Sunshine
The average sunshine in September in Gertwiller is 8.9h.UV index
In September, the average daily maximum UV index in Gertwiller, France, is 4. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for the average person.Note: In September, an average UV index of 4 transforms into the following instructions:
Take precautions - Protection against sunburn is recommended. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Gertwiller, 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
Gertwiller, 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
Gertwiller, 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
Gertwiller, 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
Gertwiller, 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
Gertwiller, 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
Gertwiller, 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
Gertwiller, 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
Gertwiller, France
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 0min).
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
Gertwiller, 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
Gertwiller, 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
Gertwiller, 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
Gertwiller, 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).
