Boston, Massachusetts Weather in August
United States · August climate averages and travel tips
Avg high27°C (81°F)
Avg low17°C (62°F)
Rainfall95 mm (3.7 in)
RatingGood 7.8/10
Expect hot days in Boston in August: the average high is 27°C (81°F) and the average low is 17°C (62°F). August is summer in United States. The month is moderately rainy, with about 95 mm (3.7 in) of rain spread over 12 days, one of the driest months of the year. You get roughly 13.7 hours of daylight and a mix of sun and cloud.
Is August a good time to visit Boston?
August is a good time to visit Boston (7.8/10), though September is even better.
August weather at a glance
| Average high | 27°C (81°F) |
|---|---|
| Average low | 17°C (62°F) |
| Daily mean | 22°C (72°F) |
| Rainfall | 95 mm (3.7 in) |
| Rainy days (1 mm+) | 12 |
| Humidity | 74% |
| Cloud cover | 54% |
| Daylight | 13.7 hours |
| Est. sunshine | 6.9 hours/day |
| Wind | 1.4 km/h |
| vs July | About as warm as July, with 18 mm less rain. |
What to pack for Boston in August
- light, breathable clothing
- sunscreen and a hat
- an umbrella or rain jacket
- swimwear
Boston weather in other months
Jan1°C / -7°C95 mmPoorFeb2°C / -7°C88 mmPoorMar6°C / -3°C108 mmPoorApr13°C / 3°C107 mmFairMay19°C / 9°C93 mmExcellentJun24°C / 14°C109 mmGoodJul28°C / 18°C113 mmGoodAug27°C / 17°C95 mmGoodSep24°C / 13°C97 mmExcellentOct17°C / 8°C126 mmGoodNov10°C / 1°C97 mmFairDec4°C / -3°C121 mmPoor
← JulyBest time to visit BostonSeptember →
Better weather in August nearby
- San Francisco, California23°C · 1 mm · Excellent
- Seattle, Washington24°C · 25 mm · Excellent
- Vancouver22°C · 32 mm · Excellent
- Victoria21°C · 26 mm · Excellent
- Calgary24°C · 62 mm · Excellent
- Honolulu, Hawaii28°C · 42 mm · Excellent
Nearby in August
- The Bronx, New York29°C · 116 mm
- Queens, New York26°C · 115 mm
- Manhattan, New York29°C · 116 mm
- New York26°C · 115 mm
- Brooklyn, New York26°C · 115 mm
- Montreal25°C · 102 mm
Where else is good in August? See where to go in August.