Massachusetts weather in July 2020

  • 28°C maximum daytime temperature in July in Massachusetts (Boston)28
    28°C max day temperature
  • 9 hours of sunshine per day
  • 9 days with some rainfall in July in Massachusetts (Boston)9
    9 days with some rainfall
  • 17°C minimum night-time temperature in July in Massachusetts (Boston)17
    17°C min night temperature
  • 15 hours of daylight per day in July in Massachusetts (Boston)15
    15 hours of daylight per day
  • Moderate heat & humidity in July in Massachusetts (Boston)M
    Moderate heat & humidity
  • 75 mm monthly rainfall in July in Massachusetts (Boston)75
    75 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in July in Massachusetts (Boston)8
    8 (Very High) UV index
  • 18°C sea temperature in July in Massachusetts (Boston)18
    18°C sea temperature
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The July weather guide for Massachusetts 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.

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Metric (°C / mm)  |  Imperial (°F / inches)

Guide to Massachusetts weather in July

The average maximum daytime temperature in Massachusetts in July is a warm 28°C (82°F) with moderate heat & humidity. The average night-time temperature is usually a comfortable 17°C (63°F). There are usually 9 hours of bright sunshine each day, which represents 63% of the 15 hours of daylight.

Expect 75mm (3.0 inches) of rainfall across the whole of July with 9 days with some rain falling. Maximum UV levels will be very high (8 UV index) at midday when the skies are clear.

The average sea temperature in and around Massachusetts in July is 18°C (64°F).

The weather in Massachusetts in July is represented by Boston.

Massachusetts sunrise & sunset times for July 2020

Browse the sunrise & sunset times for Massachusetts in July 2020. Select a month to view Massachusetts sunrise & sunset times for the next twelve months. The Massachusetts sunrise & sunset times shown below are for Boston.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st July 2020 05:11 20:25
Thursday, 16th July 2020 05:22 20:18
Friday, 31st July 2020 05:36 20:04
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