Isle Royale weather in July 2025

Expect 75°F daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Isle Royale in July. Check more long-term weather averages for Isle Royale in July before you book your next holiday to Michigan in 2025/2026.

  • 75°F maximum daytime temperature in July in Isle Royale75
    75°F max day temperature
  • 10 hours of sunshine per day
  • 11 days with some rainfall in July in Isle Royale11
    11 days with some rainfall
  • 54°F minimum night-time temperature in July in Isle Royale54
    54°F min night temperature
  • 16 hours of daylight per day in July in Isle Royale16
    16 hours of daylight per day
  • No heat & humidity in July in Isle Royale0
    No heat & humidity
  • 3.0 inches monthly rainfall in July in Isle Royale3.0
    3.0 inches of monthly rainfall
  • UV (maximum) index 7 (High) in July in Isle Royale7
    7 (High) UV index
  • 43°F sea temperature in July in Isle Royale43
    43°F sea temperature

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The July weather guide for Michigan (Isle Royale) 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 Isle Royale in July?

Daytime temperatures usually reach 75°F in Isle Royale in July, falling to 54°F at night.

How sunny is it in Isle Royale in July?

There are normally 10 hours of bright sunshine each day in Isle Royale in July - that's 62% of daylight hours.

How warm is the sea around Isle Royale in July?

The average sea temperature around Isle Royale in July is 43°F.

Does it rain in Isle Royale in July?

There are usually 11 days with some rain in Isle Royale in July and the average monthly rainfall is 3.0 inches.

Isle Royale July sunrise & sunset times

Browse the sunrise and sunset times for Isle Royale in July 2025. Select a month to view Isle Royale sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Tuesday, 1st July 2025 04:59 20:58
Wednesday, 16th July 2025 05:11 20:49
Thursday, 31st July 2025 05:29 20:31

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