Duluth weather in May 2025

Expect 63°F daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Duluth in May. Check more long-term weather averages for Duluth in May before you book your next holiday to Minnesota in 2025/2026.

  • 63°F maximum daytime temperature in May in Duluth63
    63°F max day temperature
  • 9 hours of sunshine per day
  • 12 days with some rainfall in May in Duluth12
    12 days with some rainfall
  • 39°F minimum night-time temperature in May in Duluth39
    39°F min night temperature
  • 15 hours of daylight per day in May in Duluth15
    15 hours of daylight per day
  • No heat & humidity in May in Duluth0
    No heat & humidity
  • 3.1 inches monthly rainfall in May in Duluth3.1
    3.1 inches of monthly rainfall
  • UV (maximum) index 6 (High) in May in Duluth6
    6 (High) UV index
  • 37°F sea temperature in May in Duluth37
    37°F sea temperature

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The May weather guide for Minnesota (Duluth) 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 Duluth in May?

Daytime temperatures usually reach 63°F in Duluth in May, falling to 39°F at night.

How sunny is it in Duluth in May?

There are normally 9 hours of bright sunshine each day in Duluth in May - that's 57% of daylight hours.

How warm is the sea around Duluth in May?

The average sea temperature around Duluth in May is 37°F.

Does it rain in Duluth in May?

There are usually 12 days with some rain in Duluth in May and the average monthly rainfall is 3.1 inches.

Duluth May sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st May 2025 04:53 19:19
Friday, 16th May 2025 04:32 19:38
Saturday, 31st May 2025 04:19 19:54

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