Temperature
Cold by day, freezing at night.
Longyearbyen is usually most comfortable in July and August. Typical daytime highs range from 13–47°F across the year. Most months see little rain.

Cold by day, freezing at night.
Some snow or mixed precipitation is possible this month.
Wintry precipitation and cloud limit sunshine.
Humidity is rarely noticeable in the cool air.
In November, days and nights feel about the same, around 10°.
Overcast skies this month.
Calm winds are typical in November.
November stays around 19°F through the day and night.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 16 | 8 | 1.7 | 10 | 0.0 | 79 |
| Feb | 15 | 8 | 1.2 | 8 | 0.0 | 79 |
| Mar | 13 | 5 | 1.4 | 8 | 5.1 | 78 |
| Apr | 19 | 11 | 1.0 | 7 | 11.8 | 79 |
| May | 30 | 25 | 0.9 | 6 | 16.0 | 79 |
| Jun | 39 | 36 | 0.7 | 5 | 15.5 | 82 |
| Jul | 47 | 42 | 1.3 | 9 | 12.1 | 81 |
| Aug | 45 | 40 | 1.7 | 10 | 9.3 | 84 |
| Sep | 38 | 33 | 2.0 | 11 | 4.5 | 86 |
| Oct | 28 | 22 | 1.7 | 10 | 0.8 | 85 |
| Nov | 23 | 15 | 1.8 | 11 | 0.0 | 82 |
| Dec | 18 | 11 | 1.6 | 10 | 0.0 | 80 |
Similar climates
Want a side-by-side climate view? Compare Longyearbyen with Tromso.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 27, 2026
Data & methodology