Longyearbyen weather in December
December in Longyearbyen: freezing, a little rain, with clean air — not the best time to visit.
#10 of 12 months in Longyearbyen · #558 of 604 destinations to visit in December · comfort 34/100 (tier F)
Updated June 2026 · climate normals from ERA5 reanalysis
Longyearbyen climate normals — December
| Daytime high | -8°C / 17°F | 🥶 freezing |
|---|---|---|
| Nighttime low | -13°C / 8°F | |
| Feels like (high) | -13°C / 9°F | |
| Rainfall | 31 mm / 1.2 in | 🌦 some rain |
| Rainy days | 8 days | |
| Humidity | 82% | 💦 very humid |
| Dew point | -13°C / 9°F | |
| Sunshine | 0 h/day | |
| Daylight | 0 h | |
| Wind | 16 km/h / 10 mph | |
| Snowfall | 43.2 cm / 17 in | |
| Air quality (US AQI) | 34 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Longyearbyen in December — FAQ
- Is December a good time to visit Longyearbyen?
- December in Longyearbyen: freezing, a little rain, with clean air — not the best time to visit. It ranks #10 of 12 months for Longyearbyen on SeasonMap's comfort score (34/100).
- What is the weather like in Longyearbyen in December?
- In December, Longyearbyen averages a daily high of -8.3°C and a low of -13.2°C, with about 30.9 mm of rain over roughly 8.4 rainy days.
- What is the air quality in Longyearbyen in December?
- Longyearbyen has a mean US Air Quality Index of about 34 in December.
- Does it snow in Longyearbyen in December?
- Longyearbyen sees roughly 43.2 cm of snowfall in December.