Martha's Vineyard weather in July 2025

Expect 26°C daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Martha's Vineyard in July. Check more long-term weather averages for Martha's Vineyard in July before you book your next holiday to Massachusetts in 2025/2026.

  • 26°C maximum daytime temperature in July in Martha's Vineyard26
    26°C max day temperature
  • 9 hours of sunshine per day
  • 9 days with some rainfall in July in Martha's Vineyard9
    9 days with some rainfall
  • 18°C minimum night-time temperature in July in Martha's Vineyard18
    18°C min night temperature
  • 15 hours of daylight per day in July in Martha's Vineyard15
    15 hours of daylight per day
  • Low heat & humidity in July in Martha's VineyardL
    Low heat & humidity
  • 71 mm monthly rainfall in July in Martha's Vineyard71
    71 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in July in Martha's Vineyard8
    8 (Very High) UV index
  • 19°C sea temperature in July in Martha's Vineyard19
    19°C sea temperature

More about Martha's Vineyard

Martha's Vineyard by month

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The July weather guide for Massachusetts (Martha's Vineyard) 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)

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How hot is it in Martha's Vineyard in July?

Daytime temperatures usually reach 26°C in Martha's Vineyard in July with low heat and humidity, falling to 18°C at night.

How sunny is it in Martha's Vineyard in July?

There are normally 9 hours of bright sunshine each day in Martha's Vineyard in July - that's 58% of daylight hours.

How warm is the sea around Martha's Vineyard in July?

The average sea temperature around Martha's Vineyard in July is 19°C.

Does it rain in Martha's Vineyard in July?

There are usually 9 days with some rain in Martha's Vineyard in July and the average monthly rainfall is 71mm.

What is the chance of a hurricane in Martha's Vineyard in July?

On average less than 1 day in July in Martha's Vineyard is likely to be affected by the passage of one or more tropical storms.

Martha's Vineyard July sunrise & sunset times

Browse the sunrise and sunset times for Martha's Vineyard in July 2025. Select a month to view Martha's Vineyard sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st July 2025 04:13 19:20
Wednesday, 16th July 2025 04:23 19:14
Thursday, 31st July 2025 04:37 19:00

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