Isle Royale weather in April 2025

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

  • 46°F maximum daytime temperature in April in Isle Royale46
    46°F max day temperature
  • 7 hours of sunshine per day
  • 8 days with some rainfall in April in Isle Royale8
    8 days with some rainfall
  • 27°F minimum night-time temperature in April in Isle Royale27
    27°F min night temperature
  • 14 hours of daylight per day in April in Isle Royale14
    14 hours of daylight per day
  • No heat & humidity in April in Isle Royale0
    No heat & humidity
  • 1.7 inches monthly rainfall in April in Isle Royale1.7
    1.7 inches of monthly rainfall
  • UV (maximum) index 4 (Moderate) in April in Isle Royale4
    4 (Moderate) UV index
  • 36°F sea temperature in April in Isle Royale36
    36°F sea temperature

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The April 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 warm is it in Isle Royale in April?

Daytime temperatures usually reach 46°F in Isle Royale in April, falling to 27°F at night.

How sunny is it in Isle Royale in April?

There are normally 7 hours of bright sunshine each day in Isle Royale in April - that's 54% of daylight hours.

How warm is the sea around Isle Royale in April?

The average sea temperature around Isle Royale in April is 36°F.

Does it rain in Isle Royale in April?

There are usually 8 days with some rain in Isle Royale in April and the average monthly rainfall is 1.7 inches. Rain may fall as snow in this month.

Isle Royale April sunrise & sunset times

Browse the sunrise and sunset times for Isle Royale in April 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 April 2025 06:32 19:25
Tuesday, 15th April 2025 06:04 19:45
Wednesday, 30th April 2025 05:37 20:07

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