Click on a day for an hourly weather forecast
The weather in Bonn in January is very cold with temperatures between 0°C and 5°C, warm clothes are a must.
You can expect rain for roughly half of the month of January in Bonn. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Bonn is going to experience quite a number of days of snow during January. It’s the perfect time to build snowmen, drink hot cocoa, and have a snowball fight. Just remember to wear a warm scarf and a pair of mittens!
Our weather forecast can give you a great sense of what weather to expect in Bonn in January 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 |