Yearly weather and climate in Bonn, Germany
The yearly weather in Bonn runs from around 1°C in January to 25°C in August. August is the driest month at 11 rainy days; December the wettest at 16. Here is the annual climate data, so you know what you are packing for.
Best time to visit
Weather is fairly consistent year-round. Pack for stable conditions.
Sunshine
Expect up to 11.4 hours of clear skies in Jun, but only 2.6 hours in Dec. Pack sunglasses and SPF accordingly.
Rainfall
Rainfall peaks in Jul (94mm), but it's generally moderate. A light travel umbrella should be enough.
Day-to-night swings
Temperatures typically drop by 8°C from day to night. Make sure to pack layers for the evenings.
Average temperatures and rainfall
Daily highs and lows in Bonn, averaged over 10 years of recorded weather, with the number of days it typically rains.
- 644°135°15Jan
- 1049°338°15Feb
- 1253°338°14Mar
- 1458°541°12Apr
- 1966°948°13May
- 2474°1456°12Jun
- 2475°1558°13Jul
- 2577°1660°11Aug
- 2271°1254°11Sep
- 1762°949°15Oct
- 1151°541°13Nov
- 745°337°16Dec
Bars span the average daily low to high. Numbers under the drop are rainy days per month (1mm or more) — hover a month for its total rainfall. Aug is typically driest at 11 days (65mm); Dec the wettest at 16 days (90mm).
| Month | Average high | Average low | Rainy days | Total rainfall |
|---|---|---|---|---|
| Jan | 6°C | 1°C | 15 | 82mm |
| Feb | 10°C | 3°C | 15 | 76mm |
| Mar | 12°C | 3°C | 14 | 79mm |
| Apr | 14°C | 5°C | 12 | 58mm |
| May | 19°C | 9°C | 13 | 77mm |
| Jun | 24°C | 14°C | 12 | 78mm |
| Jul | 24°C | 15°C | 13 | 94mm |
| Aug | 25°C | 16°C | 11 | 65mm |
| Sep | 22°C | 12°C | 11 | 82mm |
| Oct | 17°C | 9°C | 15 | 73mm |
| Nov | 11°C | 5°C | 13 | 79mm |
| Dec | 7°C | 3°C | 16 | 90mm |
Weather data by Open-Meteo.com
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