Boston Weather in August

Averages By Month

The weather in Boston in August is as summery as it gets. Highs of 81°F (27°C) and sunshine for 9 hours each day allow you to explore all the history that Boston has to offer. Best of all, the Atlantic has now reached its warmest water temperature of 68°F (20°C). Even at night, it hardly ever gets colder than 65°F (18°C) and there are 7 days of rain to be expected for the whole month.

Once you have finished exploring all of the incredible history in Boston, it is now in August that it is the best time to also head out to enjoy and relax on some of the beautiful beaches nearby. Comic fans should check out the Fan Expo Boston which is being held this month.

High and Low Temperature in August °F

Precipitation days in August °F

Current Weather Boston

74°F heavy intensity rain
Local Time

Hourly 10 Days

Averages Boston

  J F M A M J J A S O N D

High °F

37° 39° 46° 57° 67° 77° 82° 81° 73° 62° 52° 42°

Low °F

22° 24° 31° 41° 50° 59° 66° 65° 58° 47° 38° 28°


5h 6h 7h 7h 9h 10h 10h 9h 8h 7h 5h 5h

Rain days

8 7 8 8 8 8 6 7 6 7 8 9

Snow inch

13 11 8 2 0 0 0 0 0 0 1 9

Boston Weather by Month

Best Time to Visit Boston

The best time to visit Boston is probably between May and October. You can expect highs in the 70s F (20s C). Summers are busier and more expensive but the lovely and warm weather will make your explorations of this great city even more enjoyable.

Early fall still offers great sightseeing conditions and is less crowded. Winters are very cold and snowy. It is the best time to visit if you are after some winter-snow-fun. But make sure to pack warmclothes and boots with temperatures hovering around the freezing point.

Things to do in Boston

If you still think of Boston as this very old fashioned place full of people with cylinder hats and snobbish students, you really must go and see for yourself that things have changed. Nowadays you will find a modern, happy and colorful city which still has a lot of history to offer too. Below you find a guide taking you through the historic Boston as well as its modern twists. Beacon Hill to Chinatown
Boston old house street
Bostona ariel view old town downtown buildings
Faneuil Hall to Harvard
Boston downtown aerial view skyscrapers water
Boston old town hall
‘Little Eataly’ to Paul Revere House
Boston common public park trees fall grass statue
Boston public library books lamps windows
Public Garden to Trinity Church

Boston Location

Other destinations by month

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