South Duxbury Weather in August

The climate in South Duxbury during August can be summarized as warm, humid and a little damp.

August is in the summer in South Duxbury and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a muggy 27°C (80°F), whilst at night 17°C (62°F) is normal.

On average August is the 4th driest month of the year in South Duxbury with around 98mm 3.9 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.1 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 South Duxbury in August 2025.