Boston Weather in August
United States · 30-year monthly averages
👍 Good time to visit
August in Boston is warm, with average daytime highs around 27°C (80°F) and nighttime lows near 18°C (65°F). Expect roughly 82mm of precipitation spread over about 7 rainy days, with a moderate amount of rain.
Avg high
27°C
80°F
Avg low
18°C
65°F
Rainfall
82mm
moderate
Rainy days
7
days with ≥1mm
🎒 What to pack
- light summer clothing
- sunscreen and sunglasses
August vs the rest of the year
FAQ
- How hot is Boston in August?
- August in Boston is warm, with average daytime highs around 27°C (80°F) and nighttime lows near 18°C (65°F). Expect roughly 82mm of precipitation spread over about 7 rainy days, with a moderate amount of rain.
- Does it rain a lot in Boston in August?
- Boston sees around 82mm of precipitation in August on average — moderate by global standards.
- Is August a good time to visit Boston?
- August is a good month to visit Boston, with generally agreeable conditions.