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.

Frequently asked questions

In September, in Brilon, the average high-temperature is 18.1°C (64.6°F), and the average low-temperature is 9.6°C (49.3°F).

The average relative humidity in September in Brilon, Germany, is 80%.

September is the month with the least rainfall. Rain falls for 11.2 days and accumulates 23mm (0.91") of precipitation.

In Brilon, Germany, during September, the rain falls for 11.2 days and regularly aggregates up to 23mm (0.91") of precipitation.

June through September are months without snowfall in Brilon.

In Brilon, Germany, in September, it doesn't snow. In October, it regularly snows.

In Brilon, the average day length in September is 12h and 38min.

On the first day of September in Brilon, Germany, sunrise is at 06:39 and sunset at 20:11. On the last day of the month, sunrise is at 07:25 and sunset at 19:05 CEST.

In September, the average sunshine duration in Brilon, Germany, is 8.2h.

In September, the average daily maximum UV index in Brilon is 3. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

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).