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The weather in Longyearbyen in August is very cold with temperatures between 1°C and 4°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Longyearbyen during the month of August. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
You can expect a few days of snow in Longyearbyen during August. It’s important to get out your snow boots and warm mittens to stay warm while you explore Longyearbyen.
Our weather forecast can give you a great sense of what weather to expect in Longyearbyen in August 2026.
If you’re planning to visit Longyearbyen in the near future, we highly recommend that you review the 14 day weather forecast for Longyearbyen before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -10° / -15° | 4 | 9 | 19 | 65 mm | Awful | Longyearbyen in January |
| February | -12° / -16° | 5 | 6 | 19 | 49 mm | Awful | Longyearbyen in February |
| March | -12° / -18° | 6 | 7 | 19 | 48 mm | Awful | Longyearbyen in March |
| April | -8° / -15° | 6 | 7 | 18 | 36 mm | Awful | Longyearbyen in April |
| May | -2° / -7° | 7 | 7 | 18 | 44 mm | Awful | Longyearbyen in May |
| June | 2° / -2° | 6 | 14 | 10 | 38 mm | Awful | Longyearbyen in June |
| July | 4° / 2° | 5 | 25 | 1 | 48 mm | Bad | Longyearbyen in July |
| August | 4° / 1° | 6 | 21 | 4 | 59 mm | Awful | Longyearbyen in August |
| September | 2° / -2° | 7 | 14 | 9 | 69 mm | Awful | Longyearbyen in September |
| October | -4° / -7° | 8 | 8 | 15 | 66 mm | Awful | Longyearbyen in October |
| November | -7° / -12° | 6 | 6 | 19 | 60 mm | Awful | Longyearbyen in November |
| December | -9° / -14° | 6 | 7 | 19 | 49 mm | Awful | Longyearbyen in December |