Bonn, North Rhine-Westphalia, Germany climate
Average temperatures, precipitation and all-time records for Bonn, North Rhine-Westphalia, Germany, with every day graded against ~45 years of local climate history (1981–2026). Its warmest month is August, averaging a high of 23°C, and its coldest is February, with an average low of -3°C.
How today compares
Latest recorded day: 2026-07-21. Each reading placed on Bonn, North Rhine-Westphalia, Germany's own ±7-day seasonal distribution.
Bonn average temperatures by month
Typical daily high and low, and average precipitation, for each month in Bonn, North Rhine-Westphalia, Germany, based on 1981–2026 records. The wettest month is January (3 mm on an average day).
| Month | Avg high | Avg low | Avg precip |
|---|---|---|---|
| January | 2°C | -3°C | 3 mm |
| February | 4°C | -3°C | 3 mm |
| March | 8°C | 0°C | 3 mm |
| April | 12°C | 2°C | 3 mm |
| May | 17°C | 7°C | 3 mm |
| June | 20°C | 10°C | 3 mm |
| July | 23°C | 12°C | 3 mm |
| August | 23°C | 12°C | 3 mm |
| September | 19°C | 9°C | 3 mm |
| October | 14°C | 5°C | 3 mm |
| November | 7°C | 2°C | 3 mm |
| December | 3°C | -1°C | 3 mm |
Each bar spans the 10th-percentile daily low to the 90th-percentile daily high (the range most days fall within), coloured cold → hot on a shared -23°C to 46°C scale, so the whole year's rhythm reads at a glance.
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Record extremes
- Hottest day on record: 39°C on 2019-07-25
- Coldest day on record: -22°C on 1985-01-14
Percentiles compare each day to Bonn, North Rhine-Westphalia, Germany's own history, so grades are relative to this location: a “Near Record” day here isn't the same temperature as elsewhere. How the grades work →