What's the weather like in Boston in August?Located in the northeastern state of Massachusetts in the United States, Boston is a coastal city with a humid continental climate, bringing warm summers and bitterly cold winters to the region. August is one of the most popular months to visit Boston, with balmy temperatures, long hours of daylight and a high chance of sunshine, making this a great time of year to explore the city.
AveragesIn August, the city of Boston is pleasantly warm with average highs of 27°C in the peak of the day, so sun cream is a must if you visit at this time of year. After dark, temperatures dip to an average low of 18°C, so you’ll need warmer layers for evenings out. Around 90mm of rain’s expected this month, so it’s worth bringing a waterproof jacket in case of wet weather, but with a 40% chance of sunshine you’ll also see plenty of clear blue skies in Boston in August.