Boston Weather in August

What's the weather like in Boston (Massachusetts) in August 2024?

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

August is in the summer in Boston and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a muggy 27°C (80°F), whilst at night 16°C (61°F) is normal.

Boston weather averages (imperial / metric)
Daytime temperature 26.7°C 80°F
Nightly temperature 16.4°C 61.4°F
Average temperature 21.5°C 70.7°F
Daily sunshine 9.4 hrs
Avg rainfall 85 mm 3.3 ins
Rainy days 10 days
Sea temperature 19.8°C 67.7°F
Humidity 72%
Windspeed 14.4kph 9 mph

On average August is the 5th driest month of the year in Boston with around 85mm 3.3 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 9.4 hours of sunshine per day.

August temperatures in Boston

Boston average temperature in August

August rainfall

Boston average rain in August

August hourly sunshine

Boston average rain in August

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 Boston in August 2024.