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Bonn Weather and climate

Data source:Meteostat
Update date:2025-09

Bonn year round climate
  • Spring (March–May): Average 7.7–14.0°C, mild and rainy climate with occasional showers. May is the rainiest month. Common activities: Visiting the University of Bonn, strolling along the Rhine River. Suggested clothing: Light jacket, comfortable trousers or skirt, umbrella.
  • Summer (June–August): Average 17.4–19.4°C, warm and humid climate with occasional thunderstorms. Common activities: Cycling along the Rhine River, enjoying outdoor cafes. Suggested clothing: Light and breathable clothing, sun hat.
  • Autumn (September–November): Average 16.2–7.5°C, cool climate with frequent rainfall and gradually decreasing temperatures. Common activities: Visiting Bonn's museums, strolling in parks. Suggested clothing: Warm jacket, comfortable trousers.
  • Winter (December–February): Average 4.6–6.1°C, cold and humid climate with frequent rain and snow. Common activities: Visiting Bonn's indoor attractions, enjoying hot drinks. Suggested clothing: Heavy coat, warm clothing, scarf and gloves.
Bonn climatological average

Annual average temperature: approx. 11.4°C / Annual rainfall: approx. 970 mm / Summer humidity: 65%–75% / Rainiest month: May

Bonn monthly average temperature and precipitation
Month
Air temperature (°C)
Precipitation (mm)
January
3.6°C
79.3
February
6.1°C
87
March
7.7°C
81.3
April
9.1°C
58.7
May
14°C
99
June
17.4°C
79
July
18.6°C
80.3
August
19.4°C
69.7
September
16.2°C
86.3
October
13.3°C
74.3
November
7.5°C
84.7
December
4.6°C
91.3
Bonn weather for the next seven days
10/29
Wednesday
Patchy rain nearby
15.2°C/8.3°C
10/30
Thursday
Patchy rain nearby
13.5°C/7.8°C
10/31
Friday
Patchy rain nearby
17.1°C/8.5°C
11/1
Saturday
Patchy rain nearby
17.2°C/11.2°C
11/2
Sunday
Patchy rain nearby
13.7°C/9.6°C
11/3
Monday
Patchy rain nearby
13.1°C/8.7°C
11/4
Tuesday
Partly Cloudy
14.9°C/13.4°C