September weather forecastBrilon, Germany
September
Weather in September
September, the first month of the autumn in Brilon, is still a refreshing month, with an average temperature varying between 9.6°C (49.3°F) and 18.1°C (64.6°F).Temperature
With the arrival of September, Brilon experiences a modest decline in average high-temperatures, transitioning from a pleasant 22.7°C (72.9°F) in August to a refreshing 18.1°C (64.6°F). During the month of September, Brilon anticipates a mean low-temperature of 9.6°C (49.3°F).Humidity
The average relative humidity in September in Brilon is 80%.Rainfall
September is the month with the least rainfall in Brilon. Rain falls for 11.2 days and accumulates 23mm (0.91") of precipitation.Snowfall
June through September are months without snowfall in Brilon.Daylight
In September, the average length of the day is 12h and 38min.On the first day of the month, sunrise is at 06:39 and sunset at 20:11. On the last day of September, sunrise is at 07:25 and sunset at 19:05 CEST.
Sunshine
In Brilon, the average sunshine in September is 8.2h.UV index
In September, the average daily maximum UV index in Brilon, Germany, is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In September, a daily UV index of 3 turns into the following recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Brilon, Germany
- Average high temperature in September: 18.1°C
The warmest month (with the highest average high temperature) is August (22.7°C).
The month with the lowest average high temperature is January (3°C).
- Average low temperature in September: 9.6°C
The month with the highest average low temperature is August (12.9°C).
The coldest month (with the lowest average low temperature) is January (-1.3°C).
Average pressure in September
Brilon, 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 (1013.3mbar).
Average wind speed in September
Brilon, Germany
- Average wind speed in September: 9.6km/h
The windiest month (with the highest average wind speed) is December (13.9km/h).
The calmest month (with the lowest average wind speed) is August (9.4km/h).
Average humidity in September
Brilon, Germany
- Average humidity in September: 80%
The months with the highest relative humidity are January and December (90%).
The month with the lowest relative humidity is August (74%).
Average rainfall in September
Brilon, Germany
- Average rainfall in September: 23mm
The wettest month (with the highest rainfall) is December (51mm).
The driest month (with the least rainfall) is September (23mm).
Average rainfall days in September
Brilon, Germany
- Average rainfall days in September: 11.2 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is September (11.2 days).
Average snowfall in September
Brilon, Germany
- Average snowfall in September: 0mm
The month with the highest snowfall is January (96mm).
The months with the least snowfall are June, July, August and September (0mm).
Average snowfall days in September
Brilon, Germany
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Brilon, 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: 7h and 54min).
- Average sunshine in September: 8h and 12min
The month with the most sunshine is August (Average sunshine: 9h and 30min).
The month with the least sunshine is December (Average sunshine: 3h and 18min).
Average sunshine days in September
Brilon, Germany
- Average sunshine days in September: 17 days
The month with the most sunshine days is October (17.1 days).
The month with the least sunshine days is January (9.4 days).
Average UV index in September
Brilon, Germany
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Brilon, Germany
- Average cloud cover in September: 45
The month with the most cloud cover is December (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 40).
Average visibility in September
Brilon, Germany
- Average visibility in September: 8km
The month with the highest visibility is August (9km).
The months with the lowest visibility are January, February, October and December (7km).





