Boston Weather in May

What's the weather like in Boston (Massachusetts) in May 2024?

The climate in Boston during May can be summarized as mild and a little damp.

May is in the spring in Boston and is typically the 5th warmest month of the year. Daytime maximum temperatures average around 20°C (68°F), whilst at night 9°C (48°F) is normal.

Boston weather averages (imperial / metric)
Daytime temperature 19.7°C 67.5°F
Nightly temperature 8.7°C 47.7°F
Average temperature 14.2°C 57.6°F
Daily sunshine 8.9 hrs
Avg rainfall 85 mm 3.3 ins
Rainy days 11 days
Sea temperature 9.1°C 48.4°F
Humidity 66%
Windspeed 16.9kph 11 mph

On average May is the 4th driest month of the year in Boston with around 85mm 3.3 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.9 hours of sunshine per day.

May temperatures in Boston

Boston average temperature in May

May rainfall

Boston average rain in May

May hourly sunshine

Boston average rain in May

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Boston in May 2024.

Other monthly averages

Best places to visit in May

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Boston weather stats

Boston weather statistics
Hottest month: July 27.6°C 81.7°F
Driest month: July 75mm 3ins
Sunniest month: July 10.2hrs
Coldest month: January 1.2°C 34.2°F
Wettest month: November 111mm 4.4ins
Map showing location of Boston (42.35843, -71.05977) Boston map pin © Google

Locations nearby

Top United States locations