Provincetown weather in August 2025

Expect 77°F daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Provincetown in August. Check more long-term weather averages for Provincetown in August before you book your next holiday to Massachusetts in 2025/2026.

  • 77°F maximum daytime temperature in August in Provincetown77
    77°F max day temperature
  • 8 hours of sunshine per day
  • 10 days with some rainfall in August in Provincetown10
    10 days with some rainfall
  • 63°F minimum night-time temperature in August in Provincetown63
    63°F min night temperature
  • 14 hours of daylight per day in August in Provincetown14
    14 hours of daylight per day
  • Low heat & humidity in August in ProvincetownL
    Low heat & humidity
  • 3.6 inches monthly rainfall in August in Provincetown3.6
    3.6 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in August in Provincetown8
    8 (Very High) UV index
  • 66°F sea temperature in August in Provincetown66
    66°F sea temperature

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The August 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)  |  Imperial (°F)

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How hot is it in Provincetown in August?

Daytime temperatures usually reach 77°F in Provincetown in August with low heat and humidity, falling to 63°F at night.

How sunny is it in Provincetown in August?

There are normally 8 hours of bright sunshine each day in Provincetown in August - that's 59% of daylight hours.

How warm is the sea around Provincetown in August?

The average sea temperature around Provincetown in August is 66°F.

Does it rain in Provincetown in August?

There are usually 10 days with some rain in Provincetown in August and the average monthly rainfall is 3.6 inches.

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

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

Provincetown August sunrise & sunset times

Browse the sunrise and sunset times for Provincetown in August 2025. Select a month to view Provincetown sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 04:34 18:59
Saturday, 16th August 2025 04:50 18:39
Sunday, 31st August 2025 05:06 18:16

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