Boston weather in September
Mild and comfortable, with occasional showers. Average highs of 23°C and lows of 15°C, with around 9 rainy days expected throughout the month.
✦ This is a recommended month to visit Boston. The combination of weather, atmosphere and experience is at its best.
Average high
23°C
Average low
15°C
Rainy days
9 days
Best months to visit
June, July, August, September
What to do in Boston in September
Whatever the weather, Boston rewards curious visitors. Here are some of the best ways to spend your time:
Explore
Dine
Culture
Nature
Shopping
Day trips
What to pack for September
Light layers work well — T-shirts and shorts for the day, a light jacket for evenings. Comfortable walking shoes are a must. Bring a compact umbrella just in case.
Browse other months
January
3C
Cold, with some rainy days.
February
4C
Cold, with some rainy days.
March
7C
Cold, with some rainy days.
April
13C
Cool, with some rainy days.
May
20C
Mild and comfortable, with some rainy days.
Recommended
June
25C
Warm and pleasant, with some rainy days.
Recommended
July
28C
Warm and pleasant, with some rainy days.
Recommended
August
28C
Warm and pleasant, with some rainy days.
Recommended
September (you are here)
23C
Mild and comfortable, with occasional showers.
October
17C
Cool, with some rainy days.
November
10C
Cool, with occasional showers.
December
6C
Cold, with some rainy days.
Book your September trip to Boston
Find hotels, tours and experiences for the perfect escape.
