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Bonn weather in September

Weather in Bonn: September

Average day temperature: 68.2°F
Average night temperature: 53.9°F
Number of sunny days: 12 days
Day length: 11.7 - 13.5 hours
Number of rainy days: 3 days
Precipitation totals: 1.6 in.

Air temperature in September, °F

Show year:
2024
2023
2022

The highest day temperature during September of 2024 was 86°F. At the same time the lowest night temperature was 42°F. Day and night temperature averages during September were 69.0°F and 55.7°F.

Sunny, partly cloudy and cloudy days

Number of sunny, partly cloudy and cloudy days in September is almost equal.

Precipitation total in September, in.

Precipitation total value in Bonn in September is 1.7 in. Other months of the year show relatively similar values.

Wind speed in September, mph

The average wind speed value in September is 5.6 mph It makes September one of the least windy months of the year.

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in September is: 7.2.

Best time for vacation in Bonn

Sunniest months:
August 13 days
September 12 days
July 11 days
Warmest months:
August 74.9 °F
July 74.2 °F
June 71.7 °F
Coldest months:
January 40.3 °F
December 43.0 °F
February 43.4 °F
Rainiest months:
May 5 days
August 5 days
June 4 days
Windiest months:
February 8.4 mph
January 8.3 mph
December 8.2 mph

Bonn on a weather map

Bonn
+39°F
E 16 mph
Feels like: +32°F
Precip.: 100%
Places in Germany:
Name
°F
+41°F
+45°F
+43°F
+43°F
+46°F
+41°F
+39°F
+43°F
+43°F
+39°F
+41°F
+43°F
+41°F
+43°F
24 Hours Forecast
Bonn
Local time: 12:40
December 22, sunday
1500
41°F
E
14 mph
1800
37°F
E
11 mph
2100
37°F
E
11 mph
December 23, monday
0000
37°F
NE
9 mph
0300
37°F
E
12 mph
0600
41°F
SE
17 mph
0900
41°F
SE
17 mph
1200
43°F
SE
17 mph
Units of measurement: °C / °F