Late summer · Weather & things to do
Boston in August
Little changes in Boston from July: highs stay near 82°F (28°C), lows near 63°F (17°C), and about 3.7 in (93 mm) of rain falls.
At 81/100 for comfort (3rd of 12), it's one of the best months to visit.
- Avg high
- 82°F (28°C)
- Avg low
- 63°F (17°C)
- Rain
- 3.7 in (93 mm)
- Humidity
- 73%
- Cloud cover
- 53%
- Daylight
- ~13 h 43 min
- Comfort score
- 81/100 · Great
What August feels like
Highs settle around 82°F (28°C), warm enough for short sleeves most of the day.
After dark, temperatures fall to about 63°F (17°C).
Showers are part of the month, adding up to about 3.7 in (93 mm).
Plan around August
August is one of Boston's best months on the climate data.
- Comfort improves from 77/100 in July to 81/100.
- August sits inside the May – Oct window our Boston to Portland route recommends.
What to pack for August
- Light, breathable clotheshighs average 82°F
- Sunscreen, sunglasses and a hatstrong sun this month
- Packable rain jacket or umbrellaa shower or two is likely
- Comfortable walking shoesmost picks involve some walking
What to do in Boston in August
With conditions on your side, the picks below favor time outside.
Fenway Park
Baseball's oldest ballpark (1912); take a tour or catch a game.
Why now Our curated notes say it's best Apr–Sep.
Regina Pizzeria
The original 1926 North End pizzeria serving thin, charred pies.
Neptune Oyster
Small North End oyster bar famous for its hot buttered lobster roll.
Museum of Fine Arts, Boston
Encyclopedic art museum with strong American and Impressionist galleries.
Isabella Stewart Gardner Museum
Art collection displayed around a Venetian-style courtyard.
Nearby in August
- Portsmouth in August~51 mi · highs 74°F, 3.7 in rain · 4°C (8°F) cooler by day, about as wet
- New Hampshire in August~63 mi · highs 80°F, 3.9 in rain · similar daytime temperatures, about as wet
- Portland, Maine in August~98 mi · highs 70°F, 3.7 in rain · 7°C (12°F) cooler by day, about as wet
- Woodstock in August~114 mi · highs 77°F, 3.9 in rain · 3°C (5°F) cooler by day, about as wet
These averages also cover Downtown Boston & the Waterfront and South Boston & Castle Island.
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Boston in August: quick answers
Is August a good time to visit Boston?
Yes. On the climate data it's one of the best months, scoring 81/100. Expect highs of 82°F (28°C) and 3.7 in (93 mm) of rain. August is inside the May – Oct window our Boston to Portland route recommends.
How hot is Boston in August?
Average highs are 82°F (28°C) and average lows 63°F (17°C), making it the 2nd-warmest month by daytime highs.
Does it rain a lot in Boston in August?
Some: about 3.7 in (93 mm) of rain falls across August on average, the 4th-driest month of the year. The annual total is about 47.5 in (1207 mm).
What should I pack for Boston in August?
Bring light, breathable clothes (highs average 82°F), sunscreen, sunglasses and a hat (strong sun this month), packable rain jacket or umbrella (a shower or two is likely) and comfortable walking shoes (most picks involve some walking).
Routes in season in August
- Boston to Portland May – Oct
Planning Boston in August?
Plan it together in TripsCircle: one itinerary, one shared packing list and costs split as you go.