Weather in Ketchikan
What's the weather like in Ketchikan?
Ketchikan has a moderate climate and heavy rainfall, especially in the wet season. Average daytime highs range from 4°C (39°F) in January to 19°C (65°F) in July, with overnight lows around 0°C (32°F) and 13°C (55°F) respectively.
For comfortable sightseeing temperatures (18–26°C daytime highs), the best months to visit Ketchikan are July through August.
Quick facts
- Country
- 🇺🇸 United States
- Region
- North America
- Time zone
- America/Sitka
- Coordinates
- 55.342, -131.646
Monthly climate
Long-run averages for each month of the year.
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 4°C / 39°F | 0°C / 32°F | 366 mm | 23 | — |
| February | 4°C / 38°F | -1°C / 30°F | 251 mm | 19 | — |
| March | 6°C / 43°F | 0°C / 33°F | 255 mm | 21 | — |
| April | 9°C / 49°F | 3°C / 38°F | 281 mm | 23 | — |
| May | 14°C / 58°F | 8°C / 46°F | 151 mm | 19 | — |
| June | 16°C / 61°F | 10°C / 50°F | 174 mm | 22 | — |
| July | 19°C / 65°F | 13°C / 55°F | 179 mm | 22 | — |
| August | 18°C / 65°F | 13°C / 55°F | 283 mm | 21 | — |
| September | 15°C / 59°F | 10°C / 50°F | 343 mm | 22 | — |
| October | 10°C / 51°F | 6°C / 43°F | 372 mm | 23 | — |
| November | 6°C / 43°F | 2°C / 36°F | 401 mm | 25 | — |
| December | 3°C / 38°F | -1°C / 31°F | 333 mm | 21 | — |
Ketchikan by month
Detailed weather for any specific month:
Seasonal patterns to know
Atlantic hurricane season runs June–November (peak August–October). Tropical storms and hurricanes are possible — peak risk is August–October.
Cities with a similar climate to Ketchikan
Frequently asked questions
When is the best time to visit Ketchikan?
The most comfortable months in Ketchikan are usually June, July, August, when average highs sit near 18–26°C (64–79°F) with relatively little rain. See the full month-by-month breakdown for the exact figures.
What is the hottest month in Ketchikan?
July is typically the hottest month in Ketchikan, averaging a high of 19°C (65°F).
What is the coldest month in Ketchikan?
February is usually the coldest, with average lows around -1°C (30°F).
Does it snow in Ketchikan?
Snow is rare in Ketchikan; the climate data shows essentially no snowfall across the year.
Live forecast, sunrise/sunset, and more.