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The best time to visit Boston

Month-by-month climate averages for Boston, MA, so you can pick your dates on data rather than guesswork.

Short answer

The most comfortable time to visit Boston is usually May, June, September and October, when daytime highs sit in the pleasant 60-78°F range and the heaviest January rain is behind you.

Boston is warmest in July (highs near 84°F) and coldest in February (lows around 25°F), with roughly 51 inches of precipitation across the year and January the wettest month. The sweet spot for most visitors is May, June, September and October. Expect overnight frost in January, February and December.

These are long-run averages. For the actual days you are travelling, check the live Boston forecast — and note how much the models agree, because that tells you how much to trust it.

Boston weather by month

what to expect in Boston through the year

Here is Boston's typical weather in each month: the average daytime high and overnight low in °F, how each month feels, and the wettest month marked. Use it to plan any trip to Boston by season.

Jan
40°
27°
Cool
Wettest
Feb
42°
25°
Cool
Mar
47°
32°
Cool
Apr
57°
40°
Cool
May
68°
49°
Mild
Jun
77°
59°
Warm
Jul
84°
68°
Warm
Aug
79°
63°
Warm
Sep
73°
58°
Warm
Oct
64°
48°
Mild
Nov
51°
36°
Cool
Dec
43°
30°
Cool

Common questions

When is the best time to visit Boston?
The most comfortable time to visit Boston is usually May, June, September and October, when daytime highs sit in the pleasant 60-78°F range and the heaviest January rain is behind you.
What is the warmest month in Boston?
July is the warmest month in Boston, averaging highs near 84°F.
What is the coldest month in Boston?
February is the coldest month in Boston, with lows around 25°F. Overnight frost is likely in January, February and December.
When is the rainy season in Boston?
The wettest month in Boston is usually January, out of roughly 51 inches of precipitation across the year.

Boston month by month