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Bonn, Germany Weather Averages

August is the hottest month in Bonn with an average temperature of 18°C (64°F) and the coldest is January at 3°C (36°F) with the most daily sunshine hours at 7 in May. The wettest month is June with an average of 91.2mm of rain..

Average Temperature Bonn

What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month
What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month

Average High Low Temperature Bonn

What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily
What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

Average Rainfall Bonn

What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years
What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years

Average Daily Sunshine Hours Bonn

What are Average Daily Sunshine Hours?
Total sunshine hours for the month, divided by the number of days in the month. Sunshine hours are taken with a sunshine recorder, either a Campbell-Stokes recorder or an Eppley Pyreheliometer
What are Average Daily Sunshine Hours?
Total sunshine hours for the month, divided by the number of days in the month. Sunshine hours are taken with a sunshine recorder, either a Campbell-Stokes recorder or an Eppley Pyreheliometer

Bonn : Next 24-Hour Weather

Today - 15th August 2026

Sunrise 06:19

Sunrise

Sunset 20:52

Sunset
10:00
Clear
31°C (86°F)
11:00
Clear
32°C (89°F)
12:00
Patchy rain possible
33°C (91°F)
13:00
Patchy rain possible
34°C (92°F)
14:00
Patchy rain possible
36°C (96°F)
15:00
Clear
37°C (97°F)
16:00
Clear
37°C (98°F)
17:00
Partly cloudy
37°C (97°F)
18:00
Clear
35°C (95°F)
19:00
Clear
32°C (89°F)
20:00
Clear
30°C (84°F)
21:00
Patchy rain possible
27°C (79°F)
22:00
Clear
25°C (77°F)
23:00
Patchy rain possible
24°C (75°F)

Tomorrow - 16th August 2026

Sunrise 06:19

Sunrise

Sunset 20:52

Sunset
0:00
Patchy rain possible
22°C (70°F)
1:00
Patchy rain possible
20°C (68°F)
2:00
Moderate rain at times
19°C (65°F)
3:00
Clear
18°C (64°F)
4:00
Clear
18°C (63°F)
5:00
Clear
17°C (63°F)
6:00
Clear
17°C (61°F)
7:00
Clear
17°C (62°F)
8:00
Clear
18°C (64°F)
9:00
Clear
20°C (66°F)