Unalaska Weather in August

The climate in Unalaska during August can be summarized as cool and a little damp.

August is in the summer in Unalaska and is typically the warmest month of the year. Daytime maximum temperatures average around a cool 12°C (54°F), whilst at night 8°C (46°F) is normal.

On average August is the 5th wettest month of the year in Unalaska with around 84mm 3.3 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 20 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.4 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 August 2024.