Boston weather in May (Massachusetts, United States of America)
Looking to travel to Boston in May? Check out this comprehensive weather guide.
In May, Boston generally has pleasant temperatures and high rainfall. Daytime temperatures hover around 20°C, while nights can cool down to about 11°C.
Boston in May usually receives high rainfall, averaging around 100 mm for the month. Typically around 12 days of rainfall is expected.
The city usually sees around 301 hours of sunlight, indicating many sunny days.
In case you lean more towards enjoying temperate temperatures and rain-free days August and September typically offer the most optimal weather. In contrast, January, February, March and December tend to have less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Boston climate page with graphs.
Boston, monthly averages in May
Min Temperature
11°C
Max Temperature
20°C
Water Temperature
9°C
Chance of Rain
41%
Precipitation
100 mm
Rainy days
12 days
Humidity
67%
Windspeed
22 km/h
Sunshine
301 hours
Percentage Sunshine
59%
Where to go in the United States of America in May
Find out more about the weather in the United States of America in May and which places have the best weather conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in Boston in May?
For visitors traveling to Boston, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes. With a water temperature of around 9°C there is no need to bring your swimwear.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do in May.
Interested in more climate information?
Weather and Climate provides you with all the information you need about the climate in Boston.
Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.
