Unalaska Weather in October

The climate in Unalaska during October can be summarized as cool and damp.

October is in the fall / autumn in Unalaska and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a cold 7°C (45°F), whilst at night 2°C (36°F) is normal.

On average October is the 2nd wettest month of the year in Unalaska with around 104mm 4.1 inches of rain making it a damp time to visit. This rainfall is typically spread over 23 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.3 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 Unalaska in October 2024.