Boston weather in September 2024

Expect 73°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Boston in September. Check more long-term weather averages for Boston in September before you book your next holiday to Massachusetts in 2024/2025.

73
73°F max day temperature
8
8 hours of sunshine per day
8
8 days with some rainfall
54
54°F min night temperature
12
12 hours of daylight per day
0
No heat & humidity
3.2
3.2 inches of monthly rainfall
6
6 (High) UV index
61
61°F sea temperature

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The September weather guide for Massachusetts (Boston) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C) | Imperial (°F)

More about the USA

How hot is it in Boston in September?

Daytime temperatures usually reach 73°F in Boston in September, falling to 54°F at night.

How sunny is it in Boston in September?

There are normally 8 hours of bright sunshine each day in Boston in September - that's 61% of daylight hours.

How warm is the sea around Boston in September?

The average sea temperature around Boston in September is 61°F.

Does it rain in Boston in September?

There are usually 8 days with some rain in Boston in September and the average monthly rainfall is 3.2 inches.

What is the chance of a hurricane in Boston in September?

On average less than 1 day in September in Boston is likely to be affected by the passage of one or more tropical storms.

Boston September sunrise & sunset times

Browse the sunrise and sunset times for Boston in September 2024. Select a month to view Boston sunrise and sunset times for the next 12 months.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Date	Sunrise times	Sunset times
Sunday, 1st September 2024	06:10	19:17
Sunday, 15th September 2024	06:25	18:53
Monday, 30th September 2024	06:41	18:26

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Massachusetts - quick facts
Flight time^✝	7.5 hours
Time difference	UK -5 hours
Language(s)	English
Currency	US Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes
Why visit?	Culture Nightlife
Tourist info	Visit Massachusetts