Isle Royale weather in August 2019

  • 22°C maximum daytime temperature in August in Isle Royale22
    22°C max day temperature
  • 8 hours of sunshine per day
  • 12 days with some rainfall in August in Isle Royale12
    12 days with some rainfall
  • 11°C minimum night-time temperature in August in Isle Royale11
    11°C min night temperature
  • 14 hours of daylight per day in August in Isle Royale14
    14 hours of daylight per day
  • No heat & humidity in August in Isle Royale0
    No heat & humidity
  • 84 mm monthly rainfall in August in Isle Royale84
    84 mm of monthly rainfall
  • UV (maximum) index 6 (High) in August in Isle Royale6
    6 (High) UV index
  • 13°C sea temperature in August in Isle Royale13
    13°C sea temperature

Going to Isle Royale? Find the best month to visit Isle Royale based on the weather.

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Expect 22°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Isle Royale in August. Check more long-term weather averages for Isle Royale in August before you book your next holiday to Michigan in 2019/2020.

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More about Isle Royale

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The August weather guide for Isle Royale, Michigan 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 / mm)  |  Imperial (°F / inches)

Guide to Isle Royale weather in August

The average maximum daytime temperature in Isle Royale in August is a warm 22°C (72°F). The average night-time temperature is usually a cool 11°C (52°F). There are usually 8 hours of bright sunshine each day, which represents 58% of the 14 hours of daylight.

Expect 84mm (3.3 inches) of rainfall across the whole of August with 12 days with some rain falling. Maximum UV levels will be high (6 UV index) at midday when the skies are clear.

The average sea temperature in and around Isle Royale in August is 13°C (55°F).

Isle Royale sunrise & sunset times for August 2019

Browse the sunrise & sunset times for Isle Royale in August 2019. Select a month to view Isle Royale sunrise & sunset times for the next twelve months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Thursday, 1st August 2019 06:30 21:30
Friday, 2nd August 2019 06:31 21:29
Saturday, 3rd August 2019 06:32 21:27
Sunday, 4th August 2019 06:34 21:26
Monday, 5th August 2019 06:35 21:24
Tuesday, 6th August 2019 06:36 21:23
Wednesday, 7th August 2019 06:38 21:21
Thursday, 8th August 2019 06:39 21:20
Friday, 9th August 2019 06:40 21:18
Saturday, 10th August 2019 06:42 21:16
Sunday, 11th August 2019 06:43 21:15
Monday, 12th August 2019 06:44 21:13
Tuesday, 13th August 2019 06:46 21:11
Wednesday, 14th August 2019 06:47 21:10
Thursday, 15th August 2019 06:49 21:08
Friday, 16th August 2019 06:50 21:06
Saturday, 17th August 2019 06:51 21:04
Sunday, 18th August 2019 06:53 21:03
Monday, 19th August 2019 06:54 21:01
Tuesday, 20th August 2019 06:55 20:59
Wednesday, 21st August 2019 06:57 20:57
Thursday, 22nd August 2019 06:58 20:55
Friday, 23rd August 2019 06:59 20:53
Saturday, 24th August 2019 07:01 20:51
Sunday, 25th August 2019 07:02 20:49
Monday, 26th August 2019 07:04 20:48
Tuesday, 27th August 2019 07:05 20:46
Wednesday, 28th August 2019 07:06 20:44
Thursday, 29th August 2019 07:08 20:42
Friday, 30th August 2019 07:09 20:40
Saturday, 31st August 2019 07:10 20:38
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