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Anchorage in December: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Anchorage in December is climatically mixed. The average daily high is around -6 °C, and the sea is about 0 °C. With about 15 rainy days it is very wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
14/100 · #12
Warmth
#11
Dryness
#8
Sun
#12
Sea warmth
#9
Published best categories: none
Anchorage · DecemberPhoto: Wonderlane · CC BY 2.0Climate facts
- Average high
- -6 °C
- Average low
- -10 °C
- Sea
- 0 °C
- Rainy days (est.)
- 15 rainy days (est.)
- Sun (est.)
- 0 h/day
- Humidity
- 93 %
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 |
|---|---|---|---|---|---|---|---|---|---|
| November | -3 | -7 | 14 | 70 | 0.5 | 92 | 1.9 | 4 | 16 |
| December (selected) | -6 | -10 | 15 | 65 | 0.2 | 93 | 2.0 | 0 | 14 |
| January | -7 | -11 | 13 | 56 | 0.4 | 92 | 2.1 | -1 | 18 |
How do the previous and next months compare?
Baseline: December (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 | |
|---|---|---|---|---|---|---|---|---|---|
| November | +2 | +2.5 °C | +2.7 °C | -1.3 | +5 mm | +0.3 h | -1 % | -0.1 m/s | +3.9 °C |
| January | +4 | -0.8 °C | -0.8 °C | -2.2 | -9.3 mm | +0.2 h | -0.9 % | +0.1 m/s | -0.8 °C |
All twelve months in context
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Useful next decisions
Frequently asked questions
How warm is Anchorage in December?
The average daily high is around -6 °C, with an average daily low of about -10 °C.
Can you swim in Anchorage in December?
The sea is about 0 °C (cold).
Does it rain a lot in Anchorage in December?
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 Anchorage?
No month in Anchorage reaches the threshold for a clear recommendation in the climate score; the month comparison above shows the differences.