Sitka Weather in September

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

September is in the fall / autumn in Sitka and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a cool 13°C (55°F), whilst at night 5°C (41°F) is normal.

On average September is the 2nd wettest month of the year in Sitka with around 304mm 12 inches of rain making it a very wet time to visit. This rainfall is typically spread over 21 days, although this may vary considerably.

On the flip side this corresponds to an average of 4.3 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 September 2024.