Click on a day for an hourly weather forecast
The weather in Trondheim in January is very cold with temperatures between -7°C and -3°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Trondheim during the month of January. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Trondheim 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 Trondheim in January 2025.
If you’re planning to visit Trondheim in the near future, we highly recommend that you review the 14 day weather forecast for Trondheim before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -3° / -7° | 6 | 11 | 14 | 92 mm | Awful | Trondheim in January |
| February | -2° / -6° | 6 | 7 | 15 | 92 mm | Awful | Trondheim in February |
| March | 2° / -4° | 9 | 6 | 17 | 131 mm | Awful | Trondheim in March |
| April | 6° / -1° | 8 | 12 | 10 | 88 mm | Awful | Trondheim in April |
| May | 12° / 4° | 8 | 18 | 5 | 84 mm | Awful | Trondheim in May |
| June | 16° / 8° | 9 | 21 | 0 | 118 mm | Ok | Trondheim in June |
| July | 19° / 10° | 8 | 23 | 0 | 108 mm | Ok | Trondheim in July |
| August | 18° / 9° | 8 | 23 | 0 | 132 mm | Ok | Trondheim in August |
| September | 14° / 7° | 8 | 22 | 0 | 121 mm | Ok | Trondheim in September |
| October | 8° / 3° | 9 | 20 | 2 | 110 mm | Awful | Trondheim in October |
| November | 2° / -1° | 7 | 17 | 6 | 80 mm | Awful | Trondheim in November |
| December | -2° / -5° | 10 | 8 | 13 | 96 mm | Awful | Trondheim in December |