Massachusetts weather in May 2022

  • 20°C maximum daytime temperature in May in Massachusetts (Boston)20
    20°C max day temperature
  • 8 hours of sunshine per day
  • 11 days with some rainfall in May in Massachusetts (Boston)11
    11 days with some rainfall
  • 9°C minimum night-time temperature in May in Massachusetts (Boston)9
    9°C min night temperature
  • 15 hours of daylight per day in May in Massachusetts (Boston)15
    15 hours of daylight per day
  • No heat & humidity in May in Massachusetts (Boston)0
    No heat & humidity
  • 85 mm monthly rainfall in May in Massachusetts (Boston)85
    85 mm of monthly rainfall
  • UV (maximum) index 7 (High) in May in Massachusetts (Boston)7
    7 (High) UV index
  • 9°C sea temperature in May in Massachusetts (Boston)9
    9°C sea temperature

Below are average maximum temperatures at popular destinations in Massachusetts in May. Select a destination to see more weather parameters.

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Recommended for Massachusetts

The May 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.

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

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More about the USA

How hot is it in Massachusetts in May?

Daytime temperatures usually reach 20°C in Boston, Massachusetts in May, falling to 9°C at night.

How sunny is it in Massachusetts in May?

There are normally 8 hours of bright sunshine each day in Boston, Massachusetts in May - that's 57% of daylight hours.

Is the sea cold around Massachusetts in May?

The average sea temperature around Boston, Massachusetts in May is 9°C.

Does it rain in Massachusetts in May?

There are usually 11 days with some rain in Boston, Massachusetts in May and the average monthly rainfall is 85mm.

Massachusetts May sunrise & sunset times

Browse the sunrise and sunset times for Massachusetts in May 2022. Select a month to view Massachusetts sunrise and sunset times for the next 12 months. The Massachusetts sunrise and sunset times shown below are for Boston.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st May 2022 05:39 19:44
Monday, 16th May 2022 05:22 20:00
Tuesday, 31st May 2022 05:10 20:14

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