AnchoragePhoto: Wonderlane · CC BY 2.0USA · North America
Best time to visit Anchorage
Anchorage sits between an inlet and the mountains, the gateway to Alaska's wilderness. Short mild summer, long cold winter with the aurora.
Climate decision
Best travel months for Anchorage
Joint highest scores
Next highest scores
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Latest 5-year values 2021–2025
Average of the five most recent complete years compared with the 1991–2025 climate average.
January · Mean daily maximum
-4.6 °C
1991–2025: -6.5 °C
+2 °C · higher
September · Wet days
21.4 days/month
1991–2025: 17.6 days/month
+3.8 days/month · higher
January · Monthly precipitation
76.9 mm/month
1991–2025: 56.1 mm/month
+20.7 mm/month · higher
August · Sea temperature
14.6 °C
1991–2025: 13.9 °C
+0.7 °C · higher
July: 0/155 days at or above 30 °C; highest single value 23.4 °C.
Five-year historical sample, not a weather forecast or long-term climate trend. Individual hot days can be far above the monthly mean.
Annual profile · Coast and sea
Anchorage: the swimming season follows two curves
Average daily highs vary by 22.8 °C through the year, while the sea varies by 14.8 °C. Air and water temperature should therefore be considered separately.
The practical difference
The month with the highest daytime temperature and the month with the warmest sea need not define the same travel window. Rain and sunshine help resolve the trade-off.
Warmest sea
August · 13.9 °C
Highest average daily high
July · 16.3 °C
Fewest rainy days
April · 9.8
Most sunshine
June · 6.7 h
Month by month
Overall suitability per month. Tap a month for details.
All climate figures compared
The table is the complete accessible data view; the charts below highlight selected patterns.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Rain mm | Sun h/day (est.) | Humidity % | Wind m/s | Sea °C | Score |
|---|---|---|---|---|---|---|---|---|---|
| January | -7 | -11 | 13 | 56 | 0.4 | 92 | 2.1 | -1 | 18 |
| February | -4 | -10 | 12 | 52 | 1.2 | 91 | 2.0 | -1 | 21 |
| March | -2 | -9 | 11 | 41 | 3.0 | 89 | 2.0 | -1 | 25 |
| April | 3 | -3 | 10 | 38 | 5.1 | 83 | 1.7 | 0 | 32 |
| May | 9 | 2 | 12 | 49 | 6.1 | 78 | 1.6 | 3 | 33 |
| June | 14 | 7 | 13 | 58 | 6.7 | 79 | 1.3 | 9 | 40 |
| July | 16 | 10 | 16 | 87 | 5.9 | 81 | 1.3 | 13 | 40 |
| August | 15 | 9 | 17 | 114 | 4.7 | 82 | 1.4 | 14 | 35 |
| September | 11 | 6 | 18 | 115 | 3.0 | 84 | 1.7 | 12 | 22 |
| October | 4 | -1 | 15 | 85 | 1.4 | 88 | 1.7 | 8 | 17 |
| November | -3 | -7 | 14 | 70 | 0.5 | 92 | 1.9 | 4 | 16 |
| December | -6 | -10 | 15 | 65 | 0.2 | 93 | 2.0 | 0 | 14 |
Climate through the year
Compare temperature, rainy days, sunshine and, for coastal destinations, sea temperature month by month.
Find a place to stay
Where to stay in Anchorage
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Useful next decisions
More comparisons
Similar destinations
The number is the overall climate score, not a similarity score.
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Frequently asked questions
When is the best time to visit Anchorage?
The best time depends on the trip type; the cards above show each monthly decision.
Which month has the highest average daily maximum temperature in Anchorage?
The average daily maximum temperature in Anchorage is highest in July at around 16 °C.
When is the sea warmest at Anchorage?
In August, at around 14 °C.