Click on a day for an hourly weather forecast
The weather in Geilo in January is very cold with temperatures between -14°C and -8°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Geilo 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 Geilo 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 Geilo in January 2026.
If you’re planning to visit Geilo in the near future, we highly recommend that you review the 14 day weather forecast for Geilo before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -8° / -14° | 6 | 6 | 21 | 69 mm | Awful | Geilo in January |
| February | -6° / -14° | 5 | 5 | 20 | 52 mm | Awful | Geilo in February |
| March | -3° / -11° | 7 | 7 | 19 | 54 mm | Awful | Geilo in March |
| April | 1° / -8° | 5 | 10 | 16 | 43 mm | Awful | Geilo in April |
| May | 6° / -2° | 7 | 13 | 11 | 71 mm | Awful | Geilo in May |
| June | 13° / 3° | 7 | 21 | 1 | 100 mm | Bad | Geilo in June |
| July | 16° / 5° | 9 | 22 | 0 | 114 mm | Ok | Geilo in July |
| August | 14° / 4° | 9 | 22 | 0 | 115 mm | Ok | Geilo in August |
| September | 10° / 1° | 7 | 20 | 3 | 94 mm | Awful | Geilo in September |
| October | 3° / -3° | 8 | 8 | 15 | 91 mm | Awful | Geilo in October |
| November | -2° / -8° | 6 | 5 | 20 | 80 mm | Awful | Geilo in November |
| December | -7° / -12° | 7 | 4 | 22 | 80 mm | Awful | Geilo in December |