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Weather & Climate
Sitka, Alaska, United States
Overview
Climate data and monthly weather averages for Sitka.
Key Metrics
Annual Avg
7°C
Summer Avg
12.3°C
Winter Avg
2.6°C
Record High
23.7°C
Record Low
-14°C
Annual Precipitation
2371.5 mm
Avg Humidity
86%
Summer Humidity
88%
Winter Humidity
85%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 10.2° | 2.5° | -12.9° | 246.5 | 87% | 12 | 80.1 |
| Feb | 8.6° | 2.2° | -12.5° | 170.5 | 84% | 30 | 84.5 |
| Mar | 13.1° | 2.4° | -14° | 161.2 | 82% | 69 | 84 |
| Apr | 17.2° | 5° | -3° | 130.5 | 83% | 107 | 71.4 |
| May | 20.4° | 8° | 0° | 118.7 | 85% | 138 | 64 |
| Jun | 22.3° | 10.7° | 4.4° | 108.3 | 86% | 135 | 58.9 |
| Jul | 23.7° | 12.8° | 7.8° | 143.5 | 89% | 120 | 51.6 |
| Aug | 22° | 13.5° | 9.3° | 192.2 | 89% | 102 | 55.7 |
| Sep | 18.9° | 11.5° | 5.8° | 268.8 | 87% | 66 | 77.2 |
| Oct | 15° | 8.1° | -1.6° | 297.6 | 85% | 36 | 74.7 |
| Nov | 11.3° | 4.5° | -11.2° | 264.3 | 85% | 15 | 80.6 |
| Dec | 9.5° | 3.2° | -8.9° | 269.4 | 85% | 8 | 84 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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