Overall on the next 14 days there will be 6 days with snow in Harstad and a total of 10.7 cm of snow.
It will be snowy on the following days:
°F °C
Harstad 
Weather in December 2025
Overall on the next 14 days there will be 6 days with snow in Harstad and a total of 10.7 cm of snow.
It will be snowy on the following days:
The weather in Harstad in December is very cold with temperatures between -2°C and 0°C, warm clothes are a must.
You can expect rain for roughly half of the month of December in Harstad. 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.
Let it snow! You can expect Harstad to be covered in white during the month of December. 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 Harstad in December 2025.
If you’re planning to visit Harstad in the near future, we highly recommend that you review the 14 day weather forecast for Harstad before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -2° / -5° | 7 | 8 | 17 | 146 mm | Awful | Harstad in January |
| February | -2° / -5° | 7 | 6 | 16 | 146 mm | Awful | Harstad in February |
| March | 0° / -4° | 7 | 4 | 22 | 181 mm | Awful | Harstad in March |
| April | 3° / -1° | 8 | 6 | 16 | 143 mm | Awful | Harstad in April |
| May | 7° / 3° | 9 | 15 | 7 | 101 mm | Awful | Harstad in May |
| June | 11° / 7° | 11 | 18 | 1 | 133 mm | Bad | Harstad in June |
| July | 14° / 10° | 9 | 22 | 0 | 135 mm | Ok | Harstad in July |
| August | 14° / 10° | 8 | 23 | 0 | 115 mm | Ok | Harstad in August |
| September | 11° / 8° | 11 | 19 | 0 | 167 mm | Bad | Harstad in September |
| October | 6° / 4° | 11 | 13 | 7 | 186 mm | Awful | Harstad in October |
| November | 3° / 1° | 10 | 9 | 12 | 163 mm | Awful | Harstad in November |
| December | 0° / -2° | 8 | 9 | 15 | 152 mm | Awful | Harstad in December |
