Month-by-month travel weather
Boston May weather
Boston, United States · May
Nice daytime weather, cooler evenings
May often brings more comfortable walking weather, though breezy and cooler days can still appear.
Evenings can cool down, so a thin layer helps for late plans.
May averages at a glance
Average low
around 8–12°C
Average high
around 16–20°C
Average precipitation
around 75–105 mm
Rainy days
about 9–12 days
What to wear in May in Boston
Actual feel will change with wind and rain, but use the suggestions below to build a comfortable layered outfit.
- • Mix of tees/long sleeves + a thin outer layer.
- • Optional rain option.
- • A thin evening layer helps.
Travel tips for visiting Boston in May
- • Good weather can stretch outdoor time—plan for evening cool-down.
- • Passing showers can still happen—keep a backup plan.
May weather in Boston — FAQ
Q. Does May feel like summer?
A. Sometimes, but cooler and breezier days still happen.
Q. Is May rainy?
A. Rain is fairly common, though not always all-day rain.
Explore Boston
These pages are connected so you can compare conditions and decide for yourself.