September weather forecastOlfen, Germany
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Olfen, Germany, with an average temperature varying between 11°C (51.8°F) and 19°C (66.2°F).Temperature
The beginning of September subtly marks a decrease in the average high-temperature, transitioning from a warm 23.3°C (73.9°F) in August to a refreshing 19°C (66.2°F). Throughout the month of September, Olfen witnesses an average temperature of 11°C (51.8°F).Humidity
In September, the average relative humidity in Olfen is 77%.Rainfall
In Olfen, in September, during 12.9 rainfall days, 29mm (1.14") of precipitation is typically accumulated. Throughout the year, in Olfen, Germany, there are 182.6 rainfall days, and 493mm (19.41") of precipitation is accumulated.Snowfall
In Olfen, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 38min.On the first day of September in Olfen, sunrise is at 06:43 and sunset at 20:16. On the last day of the month, sunrise is at 07:30 and sunset at 19:10 CEST.
Sunshine
In Olfen, the average sunshine in September is 8h.UV index
The average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In September, the maximum UV index of 4 suggests these recommendations:
Exercise prevention - Precautions against solar damage are endorsed. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Olfen, Germany
- Average high temperature in September: 19°C
The warmest month (with the highest average high temperature) is August (23.3°C).
The month with the lowest average high temperature is January (4.1°C).
- Average low temperature in September: 11°C
The month with the highest average low temperature is August (14.6°C).
The coldest month (with the lowest average low temperature) is January (0.3°C).
Average pressure in September
Olfen, Germany
- Average pressure in September: 1017.5mbar
The month with the highest atmospheric pressure is September (1017.5mbar).
The month with the lowest atmospheric pressure is November (1012.9mbar).
Average wind speed in September
Olfen, Germany
- Average wind speed in September: 11.1km/h
The windiest month (with the highest average wind speed) is December (16.6km/h).
The calmest month (with the lowest average wind speed) is August (10.8km/h).
Average humidity in September
Olfen, Germany
- Average humidity in September: 77%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (72%).
Average rainfall in September
Olfen, Germany
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is December (55mm).
The driest month (with the least rainfall) is April (23mm).
Average rainfall days in September
Olfen, Germany
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is July (18.6 days).
The month with the least rainy days is February (12.8 days).
Average snowfall in September
Olfen, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (38mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Olfen, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (5.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Olfen, Germany
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in September: 8h and 0min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is December (Average sunshine: 3h and 30min).
Average sunshine days in September
Olfen, Germany
- Average sunshine days in September: 14.1 days
The month with the most sunshine days is October (15.5 days).
The month with the least sunshine days is July (10.1 days).
Average UV index in September
Olfen, 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
Olfen, Germany
- Average cloud cover in September: 43
The month with the most cloud cover is December (Cloud cover 66).
The month with the least cloud cover is August (Cloud cover 39).
Average visibility in September
Olfen, Germany
- 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).
