Svalbard
Longyearbyen in October: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Longyearbyen in October is climatically mixed. The average daily high is around -5 °C, and the sea is about 2 °C. With about 15 rainy days it is wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
14/100 · #9
Warmth
#6
Dryness
#7
Sun
#8
Sea warmth
#5
Published best categories: none
Longyearbyen · OctoberPhoto: Bjørn Christian Tørrissen · CC BY-SA 4.0Climate facts
- Average high
- -5 °C
- Average low
- -9 °C
- Sea
- 2 °C
- Rainy days (est.)
- 15 rainy days (est.)
- Sun (est.)
- 0 h/day
- Humidity
- 94 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| September | 0 | -2 | 16 | 72 | 1.6 | 93 | 3.0 | 4 | 15 |
| October (selected) | -5 | -9 | 15 | 65 | 0.2 | 94 | 3.4 | 2 | 14 |
| November | -7 | -12 | 15 | 66 | 0.0 | 95 | 3.9 | 1 | 14 |
How do the previous and next months compare?
Baseline: October (14/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | Sea Δ | |
|---|---|---|---|---|---|---|---|---|---|
| September | +1 | +5.3 °C | +6.1 °C | +1.1 | +6.9 mm | +1.4 h | -1.3 % | -0.3 m/s | +1.4 °C |
| November | ±0 | -2.3 °C | -3.1 °C | -0.2 | +1.5 mm | -0.2 h | +0.9 % | +0.5 m/s | -1.1 °C |
All twelve months in context
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Where to stay in Longyearbyen
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Useful next decisions
Frequently asked questions
How warm is Longyearbyen in October?
The average daily high is around -5 °C, with an average daily low of about -9 °C.
Can you swim in Longyearbyen in October?
The sea is about 2 °C (cold).
Does it rain a lot in Longyearbyen in October?
The curated estimate is about 15 rainy days per month, not a directly measured long-term average. Total precipitation averages around 65 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Longyearbyen?
No month in Longyearbyen reaches the threshold for a clear recommendation in the climate score; the month comparison above shows the differences.