Click on a day for an hourly weather forecast
The weather in Jonndalen in January is very cold with temperatures between -20°C and -7°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Jonndalen 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.
Let it snow! You can expect Jonndalen to be covered in white during the month of January. Be sure to bundle up when you venture outside, or take the opportunity to enjoy hot cocoa by the fire for warmth this month.
Our weather forecast can give you a great sense of what weather to expect in Jonndalen in January 2026.
If you’re planning to visit Jonndalen in the near future, we highly recommend that you review the 14 day weather forecast for Jonndalen before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -7° / -20° | 5 | 5 | 22 | 66 mm | Awful | Jonndalen in January |
| February | -5° / -20° | 6 | 4 | 20 | 50 mm | Awful | Jonndalen in February |
| March | -1° / -17° | 8 | 5 | 20 | 60 mm | Awful | Jonndalen in March |
| April | 3° / -12° | 8 | 10 | 13 | 55 mm | Awful | Jonndalen in April |
| May | 9° / -2° | 9 | 17 | 6 | 106 mm | Awful | Jonndalen in May |
| June | 15° / 6° | 9 | 21 | 0 | 137 mm | Ok | Jonndalen in June |
| July | 18° / 8° | 10 | 21 | 0 | 157 mm | Ok | Jonndalen in July |
| August | 16° / 5° | 10 | 21 | 0 | 127 mm | Ok | Jonndalen in August |
| September | 12° / -1° | 6 | 23 | 0 | 82 mm | Ok | Jonndalen in September |
| October | 5° / -7° | 8 | 16 | 7 | 76 mm | Awful | Jonndalen in October |
| November | -2° / -14° | 9 | 6 | 16 | 71 mm | Awful | Jonndalen in November |
| December | -6° / -18° | 7 | 2 | 23 | 65 mm | Awful | Jonndalen in December |