September weather forecastSchwelm, Germany
September
Weather in September
September, the first month of the autumn in Schwelm, is still a comfortable month, with an average temperature ranging between min 10.5°C (50.9°F) and max 18.8°C (65.8°F).Temperature
The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a warm 23°C (73.4°F) in August to a refreshing 18.8°C (65.8°F). An average low-temperature of 10.5°C (50.9°F) is observed during September nights.Humidity
In Schwelm, the average relative humidity in September is 78%.Rainfall
In Schwelm, in September, it is raining for 13.7 days, with typically 29mm (1.14") of accumulated precipitation. In Schwelm, during the entire year, the rain falls for 183.3 days and collects up to 518mm (20.39") of precipitation.Snowfall
In Schwelm, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 38min.On the first day of September, sunrise is at 06:44 and sunset at 20:16. On the last day of the month, sunrise is at 07:30 and sunset at 19:10 CEST.
Sunshine
The average sunshine in September in Schwelm is 8.2h.UV index
In Schwelm, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: In September, the UV index of 3 transforms into the following advice:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Schwelm, Germany
- Average high temperature in September: 18.8°C
The warmest month (with the highest average high temperature) is August (23°C).
The month with the lowest average high temperature is January (3.8°C).
- Average low temperature in September: 10.5°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 (-0.3°C).
Average pressure in September
Schwelm, Germany
- Average pressure in September: 1017.6mbar
The month with the highest atmospheric pressure is September (1017.6mbar).
The month with the lowest atmospheric pressure is November (1013.2mbar).
Average wind speed in September
Schwelm, Germany
- Average wind speed in September: 10.3km/h
The windiest month (with the highest average wind speed) is December (15.1km/h).
The calmest month (with the lowest average wind speed) is August (10.1km/h).
Average humidity in September
Schwelm, Germany
- Average humidity in September: 78%
The month with the highest relative humidity is December (89%).
The month with the lowest relative humidity is August (72%).
Average rainfall in September
Schwelm, Germany
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is December (63mm).
The driest month (with the least rainfall) is April (28mm).
Average rainfall days in September
Schwelm, Germany
- Average rainfall days in September: 13.7 days
The month with the highest number of rainy days is July (18.2 days).
The month with the least rainy days is February (12.7 days).
Average snowfall in September
Schwelm, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (69mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Schwelm, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Schwelm, Germany
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 8h and 12min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The months with the least sunshine are January and December (Average sunshine: 3h and 30min).
Average sunshine days in September
Schwelm, Germany
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is October (14.5 days).
The month with the least sunshine days is December (9.5 days).
Average UV index in September
Schwelm, Germany
- Average UV index in September: 3
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
Schwelm, Germany
- Average cloud cover in September: 43
The month with the most cloud cover is December (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in September
Schwelm, 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, February, September, October, November and December (8km).
