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Anchorage in August: weather, sea & travel advice
This month's data profile
Rain shapes the decision
Anchorage in August is climatically mixed. The average daily high is around 15 °C, and the sea is about 14 °C. With about 17 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
35/100 · #3
Warmth
#2
Dryness
#11
Sun
#5
Sea warmth
#1
Published best categories: none
Anchorage · AugustPhoto: Wonderlane · CC BY 2.0Climate facts
- Average high
- 15 °C
- Average low
- 9 °C
- Sea
- 14 °C
- Rainy days (est.)
- 17 rainy days (est.)
- Sun (est.)
- 5 h/day
- Humidity
- 82 %
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 |
|---|---|---|---|---|---|---|---|---|---|
| July | 16 | 10 | 16 | 87 | 5.9 | 81 | 1.3 | 13 | 40 |
| August (selected) | 15 | 9 | 17 | 114 | 4.7 | 82 | 1.4 | 14 | 35 |
| September | 11 | 6 | 18 | 115 | 3.0 | 84 | 1.7 | 12 | 22 |
How do the previous and next months compare?
Baseline: August (35/100)
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 | |
|---|---|---|---|---|---|---|---|---|---|
| July | +5 | +0.9 °C | +0.6 °C | -1.1 | -26.6 mm | +1.2 h | -1 % | -0.1 m/s | -1 °C |
| September | -13 | -4.6 °C | -3.9 °C | +0.5 | +1.6 mm | -1.7 h | +2 % | +0.2 m/s | -1.7 °C |
All twelve months in context
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Useful next decisions
Frequently asked questions
How warm is Anchorage in August?
The average daily high is around 15 °C, with an average daily low of about 9 °C.
Can you swim in Anchorage in August?
The sea is about 14 °C (cold).
Does it rain a lot in Anchorage in August?
The curated estimate is about 17 rainy days per month, not a directly measured long-term average. Total precipitation averages around 114 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.