Bonn Climate by Month
Bonn, North Rhine-Westphalia, Germany
Warm summers and cool winters, with rain spread through the year.
Warm summers and cool winters, with rain spread through the year: that's Bonn's climate in short. Expect highs of 78°F (26°C) in July and 43°F (6°C) in January, with the coldest nights (February) near 33°F (1°C). About 28 in (722 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 78°F(26°C)
- Average high, July
- Coldest nights
- 33°F(1°C)
- Average low, February
- Rain per year
- 28 in(722 mm)
- No clear rainy season
- Humidity
- 73%
- Sunniest: June
Best and worst months in Bonn
Best for weatherJune and August are the best time for weather in Bonn: highs near 76°F (24°C) and about 2.8 in (72 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; December is the coldest, with highs of only 45°F (7°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in June.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Bonn weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 43°F(6°C) | 34°F(1°C) | 2.2 in(55 mm) | 76% | 0.7 |
| FebFebruary | 46°F(8°C) | 33°F(1°C) | 1.9 in(48 mm) | 72% | 1.4 |
| MarMarch | 53°F(12°C) | 37°F(3°C) | 2.0 in(50 mm) | 69% | 2.5 |
| AprApril | 61°F(16°C) | 42°F(6°C) | 1.7 in(42 mm) | 69% | 4.1 |
| MayMay | 69°F(20°C) | 49°F(9°C) | 2.4 in(62 mm) | 65% | 5.0 |
| JunJuneBest | 75°F(24°C) | 54°F(12°C) | 2.8 in(70 mm) | 68% | 5.3 |
| JulJuly | 78°F(26°C) | 58°F(14°C) | 3.3 in(83 mm) | 69% | 5.2 |
| AugAugustBest | 77°F(25°C) | 57°F(14°C) | 2.9 in(74 mm) | 71% | 4.4 |
| SepSeptember | 69°F(21°C) | 51°F(11°C) | 2.3 in(58 mm) | 74% | 3.1 |
| OctOctober | 60°F(16°C) | 45°F(7°C) | 2.3 in(59 mm) | 82% | 1.8 |
| NovNovember | 51°F(10°C) | 40°F(4°C) | 2.2 in(57 mm) | 78% | 0.9 |
| DecDecember | 45°F(7°C) | 35°F(2°C) | 2.5 in(64 mm) | 84% | 0.6 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
Places with a similar climate
All 20 places like Bonn →- 🇩🇪DortmundNorth Rhine-Westphalia, Germany · Pop. 588k99%matchSame winter lowsSame summer highsBonn vs Dortmund →
- 🇩🇪MünsterNorth Rhine-Westphalia, Germany · Pop. 308k99%matchSame winter lowsSame summer highsBonn vs Münster →
- 🇩🇪MindenNorth Rhine-Westphalia, Germany · Pop. 83k99%matchSame winter lowsSimilar rainfallBonn vs Minden →
- 🇩🇪TrierRheinland-Pfalz, Germany · Pop. 100k99%matchSame winter lowsSame summer highsBonn vs Trier →
- 🇩🇪MannheimBaden-Wurttemberg, Germany · Pop. 308k99%matchSame winter lowsSame humidityBonn vs Mannheim →