Boston: May Weather Averages
|Sunshine Hours||9 hrs|
|Chance of Sunny Day||16 %|
|Rainfall days||16 days|
|Chance of Rain||47 %|
|Chance of Cloudy Day||49 %|
|Chance of Windy Day||41 %|
Averages for Boston in MayMay heralds the arrival of much more pleasant, warmer weather in Boston and is a perfect time to visit and see all that the city has to offer.
The average temperature now reaches 19°C (that's about 66°F) during the day and reach a low of around 9°C (about 48°F) in the evenings.
You can expect rain on an average of 11 days of the month. The average monthly rain is around 79mm and there are now around 9 hours of average daily sunshine.
Lighter clothing would be appropriate for being out and about during the day, however due to the cooler evenings and the chance of rain it would be best to bring a jacket or an umbrella.
You can check the local weather report so you can plan your trip effectively.
The average sea temperature is still a cool 13°C (that's about 55°F) so swimming would not be recommended just yet.
There are many outdoor celebrations marking the arrival of Spring during this month.
The Great Boston Kite Festival takes place in mid May in Franklin Park.
The Arnold Arboretum celebrates over 400 varieties of lilac blooms on Lilac Sunday.
Spring is a perfect time to visit Boston's many parks and gardens.
Boston Common is the oldest public park in the United States. As well as being a place to relax, there is also a speaker's corner and many statues across 50 acres.
Boston Public Garden is the oldest botanical garden in the United States. The walkways are lined with a variety of plants and are particularly beautiful in May as they contain a mass of blooming tulips.
The garden also contains a large pond on which you can hire pedal powered Swan Boats!