Boston weather in March 2025

Expect 46°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Boston in March. Check more long-term weather averages for Boston in March before you book your next holiday to Massachusetts in 2025/2026.

  • 46°F maximum daytime temperature in March in Boston46
    46°F max day temperature
  • 7 hours of sunshine per day
  • 11 days with some rainfall in March in Boston11
    11 days with some rainfall
  • 28°F minimum night-time temperature in March in Boston28
    28°F min night temperature
  • 12 hours of daylight per day in March in Boston12
    12 hours of daylight per day
  • No heat & humidity in March in Boston0
    No heat & humidity
  • 3.8 inches monthly rainfall in March in Boston3.8
    3.8 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in March in Boston4
    4 (Moderate) UV index
  • 37°F sea temperature in March in Boston37
    37°F sea temperature

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The March 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)  |  Imperial (°F)

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More about the USA

How warm is it in Boston in March?

Daytime temperatures usually reach 46°F in Boston in March, falling to 28°F at night.

How sunny is it in Boston in March?

There are normally 7 hours of bright sunshine each day in Boston in March - that's 56% of daylight hours.

How warm is the sea around Boston in March?

The average sea temperature around Boston in March is 37°F.

Does it rain in Boston in March?

There are usually 11 days with some rain in Boston in March and the average monthly rainfall is 3.8 inches.

Boston March sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st March 2025 06:19 17:34
Sunday, 16th March 2025 05:54 17:52
Monday, 31st March 2025 05:28 18:09

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