Unalaska Weather in May

The climate in Unalaska during May can be summarized as cool and reasonably dry.

May is in the spring in Unalaska and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a cold 6°C (43°F), whilst at night 1°C (34°F) is normal.

On average May is the 3rd driest month of the year in Unalaska with around 54mm 2.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.5 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 May 2024.