Boston weather in June 2025

Expect daytime maximum temperatures of 25°C in Boston in June based on long-term weather averages. There are 9 hours of sunshine per day on average with 11 days with some rainfall and typically 80 mm of rainfall in the month.

  • 25°C maximum daytime temperature in June in Boston25
    25°C max day temperature
  • 9 hours of sunshine per day
  • 11 days with some rainfall in June in Boston11
    11 days with some rainfall
  • 14°C minimum night-time temperature in June in Boston14
    14°C min night temperature
  • 15 hours of daylight per day in June in Boston15
    15 hours of daylight per day
  • Low heat & humidity in June in BostonL
    Low heat & humidity
  • 80 mm monthly rainfall in June in Boston80
    80 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in June in Boston8
    8 (Very High) UV index
  • 14°C sea temperature in June in Boston14
    14°C sea temperature

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The June 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.

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

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More about the USA

How hot is it in Boston in June?

Daytime temperatures usually reach 25°C in Boston in June with low heat and humidity, falling to 14°C at night.

How sunny is it in Boston in June?

There are normally 9 hours of bright sunshine each day in Boston in June - that's 61% of daylight hours.

How warm is the sea around Boston in June?

The average sea temperature around Boston in June is 14°C.

Does it rain in Boston in June?

There are usually 11 days with some rain in Boston in June and the average monthly rainfall is 80mm.

Boston June sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Sunday, 1st June 2025 04:10 19:15
Sunday, 15th June 2025 04:07 19:23
Monday, 30th June 2025 04:11 19:25

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