Juneau Weather in August

The climate in Juneau during August can be summarized as mild and wet.

August is in the summer in Juneau and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a cool 15°C (59°F), whilst at night 7°C (44°F) is normal.

On average August is the 4th wettest month of the year in Juneau with around 157mm 6.2 inches of rain making it a wet 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 5.9 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 Juneau in August 2024.