Bar Harbor weather in May 2025

Expect daytime maximum temperatures of 64°F in Bar Harbor, Maine in May based on long-term weather averages. There are 7 hours of sunshine per day on average with 12 days with some rainfall and typically 4.2 inches of rainfall in the month.

  • 64°F maximum daytime temperature in May in Bar Harbor64
    64°F max day temperature
  • 7 hours of sunshine per day
  • 12 days with some rainfall in May in Bar Harbor12
    12 days with some rainfall
  • 43°F minimum night-time temperature in May in Bar Harbor43
    43°F min night temperature
  • 15 hours of daylight per day in May in Bar Harbor15
    15 hours of daylight per day
  • No heat & humidity in May in Bar Harbor0
    No heat & humidity
  • 4.2 inches monthly rainfall in May in Bar Harbor4.2
    4.2 inches of monthly rainfall
  • UV (maximum) index 6 (High) in May in Bar Harbor6
    6 (High) UV index
  • 43°F sea temperature in May in Bar Harbor43
    43°F sea temperature

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The May weather guide for Maine (Bar Harbor) 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 hot is it in Bar Harbor in May?

Daytime temperatures usually reach 64°F in Bar Harbor in May, falling to 43°F at night.

How sunny is it in Bar Harbor in May?

There are normally 7 hours of bright sunshine each day in Bar Harbor in May - that's 47% of daylight hours.

How warm is the sea around Bar Harbor in May?

The average sea temperature around Bar Harbor in May is 43°F.

Does it rain in Bar Harbor in May?

There are usually 12 days with some rain in Bar Harbor in May and the average monthly rainfall is 4.2 inches.

Bar Harbor May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 04:23 18:37
Friday, 16th May 2025 04:04 18:55
Saturday, 31st May 2025 03:52 19:10

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