Click on a day for an hourly weather forecast
The temperatures in Bonn in April are quite cold with temperatures between 6°C and 16°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Bonn during the month of April. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Please note that Bonn can expect a few days of snow in April.
Our weather forecast can give you a great sense of what weather to expect in Bonn in April 2025.
If you’re planning to visit Bonn in the near future, we highly recommend that you review the 14 day weather forecast for Bonn before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 5° / 0° | 8 | 15 | 8 | 65 mm | Awful | Bonn in January |
| February | 6° / 1° | 8 | 14 | 6 | 52 mm | Awful | Bonn in February |
| March | 11° / 3° | 6 | 23 | 2 | 56 mm | Bad | Bonn in March |
| April | 16° / 6° | 4 | 25 | 1 | 47 mm | Good | Bonn in April |
| May | 19° / 8° | 6 | 25 | 0 | 84 mm | Good | Bonn in May |
| June | 22° / 12° | 6 | 24 | 0 | 91 mm | Good | Bonn in June |
| July | 24° / 14° | 6 | 25 | 0 | 96 mm | Perfect | Bonn in July |
| August | 24° / 14° | 5 | 26 | 0 | 78 mm | Perfect | Bonn in August |
| September | 21° / 11° | 4 | 26 | 0 | 51 mm | Good | Bonn in September |
| October | 15° / 7° | 5 | 26 | 0 | 56 mm | Good | Bonn in October |
| November | 10° / 4° | 6 | 22 | 1 | 57 mm | Ok | Bonn in November |
| December | 6° / 2° | 9 | 17 | 5 | 76 mm | Awful | Bonn in December |