Sitka Weather in October

The climate in Sitka during October can be summarized as cool and very wet.

October is in the fall / autumn in Sitka and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a cool 9°C (47°F), whilst at night 2°C (35°F) is normal.

On average October is the wettest month of the year in Sitka with around 413mm 16.3 inches of rain making it a very wet time to visit. This rainfall is typically spread over 25 days, although this may vary considerably.

On the flip side this corresponds to an average of 2.8 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Sitka in October 2025.