Boston weather in May 2025

Expect daytime maximum temperatures of 61°F in Boston, England in May based on long-term weather averages. There are 6 hours of sunshine per day on average with 14 days with some rainfall and typically 1.9 inches of rainfall in the month.

  • 61°F maximum daytime temperature in May in Boston61
    61°F max day temperature
  • 6 hours of sunshine per day
  • 14 days with some rainfall in May in Boston14
    14 days with some rainfall
  • 45°F minimum night-time temperature in May in Boston45
    45°F min night temperature
  • 16 hours of daylight per day in May in Boston16
    16 hours of daylight per day
  • No heat & humidity in May in Boston0
    No heat & humidity
  • 1.9 inches monthly rainfall in May in Boston1.9
    1.9 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in May in Boston5
    5 (Moderate) UV index

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The May weather guide for England (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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How warm is it in Boston in May?

Daytime temperatures usually reach 61°F in Boston in May, falling to 45°F at night.

How sunny is it in Boston in May?

There are normally 6 hours of bright sunshine each day in Boston in May - that's 39% of daylight hours.

Does it rain in Boston in May?

There are usually 14 days with some rain in Boston in May and the average monthly rainfall is 1.9 inches.

Boston May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 04:27 19:29
Friday, 16th May 2025 04:00 19:54
Saturday, 31st May 2025 03:42 20:15

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