Provincetown weather in September 2025

Expect 21°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Provincetown in September. Check more long-term weather averages for Provincetown in September before you book your next holiday to Massachusetts in 2025/2026.

21
21°C max day temperature
8
8 hours of sunshine per day
8
8 days with some rainfall
14
14°C min night temperature
12
12 hours of daylight per day
0
No heat & humidity
83
83 mm of monthly rainfall
6
6 (High) UV index
17
17°C sea temperature

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The September weather guide for Massachusetts (Provincetown) 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 / mm) | Imperial (°F / inches)

More about the USA

How hot is it in Provincetown in September?

Daytime temperatures usually reach 21°C in Provincetown in September, falling to 14°C at night.

How sunny is it in Provincetown in September?

There are normally 8 hours of bright sunshine each day in Provincetown in September - that's 60% of daylight hours.

How warm is the sea around Provincetown in September?

The average sea temperature around Provincetown in September is 17°C.

Does it rain in Provincetown in September?

There are usually 8 days with some rain in Provincetown in September and the average monthly rainfall is 83mm.

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

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

Provincetown September sunrise & sunset times

Browse the sunrise and sunset times for Provincetown in September 2025. Select a month to view Provincetown 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
Monday, 1st September 2025	05:07	18:14
Monday, 15th September 2025	05:21	17:50
Tuesday, 30th September 2025	05:37	17:24

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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