Calm evening waters at the Rock Harbor in Isle Royale National Park, Michigan, USA
Weather in July
July brings the peak of summer in Isle Royale National Park, Michigan. The increase in temperature from June makes July the warmest month of the year. There's an abundance of sunlight, making this a perfect time for sunbathing. The levels of rainfall exhibit a slight decline compared to the preceding months. This month displays the highest temperature in the range from 54°F (12.2°C) to 75°F (23.9°C), reinforcing the summer atmosphere.
Note: Diving into 42.8°F (6°C) when it's under 50°F (10°C) can cause immediate cold shock symptoms, marked by hyperventilation.
On the first day of the month, sunrise is at 6:00 am and sunset at 9:58 pm. On the last day of July, sunrise is at 6:31 am and sunset at 9:32 pm EDT.
Note: A maximum high daily UV index of 7 during July translates into the following directions:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Temperature
July temperatures in Isle Royale National Park tend to peak at an average high of 75.2°F (24°C) and dip to a low of 53.6°F (12°C).Rainfall
In Isle Royale National Park, Michigan, during July, the rain falls for 11 days and regularly aggregates up to 3.03" (77mm) of precipitation. In Isle Royale National Park, Michigan, during the entire year, the rain falls for 125 days and collects up to 30.55" (776mm) of precipitation.Ocean temperature
In July, the average ocean temperature in Isle Royale National Park is 42.8°F (6°C).Note: Diving into 42.8°F (6°C) when it's under 50°F (10°C) can cause immediate cold shock symptoms, marked by hyperventilation.
Daylight
The average length of the day in July in Isle Royale National Park is 15h and 35min.On the first day of the month, sunrise is at 6:00 am and sunset at 9:58 pm. On the last day of July, sunrise is at 6:31 am and sunset at 9:32 pm EDT.
Sunshine
With an average of 10h of sunshine, July has the most sunshine of the year.UV index
June and July, with an average maximum UV index of 7, are months with the highest UV index in Isle Royale National Park, Michigan. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 7 during July translates into the following directions:
Implement preventive steps and embrace sun safety standards. Protection from skin and eye distress is compulsory. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What month is the hottest in Isle Royale National Park?
July, noted for its average high-temperature of 75.2°F (24°C) and an average low-temperature of 53.6°F (12°C), is considered the warmest month in Isle Royale National Park, Michigan.
What is the usual temperature for Isle Royale National Park in July?
An average high-temperature, in July, in Isle Royale National Park, is 75.2°F (24°C) and the average low-temperature is 53.6°F (12°C).
How much does it rain in Isle Royale National Park in July?
In July, in Isle Royale National Park, Michigan, the rain falls for 11 days. Throughout July, 3.03" (77mm) of precipitation is accumulated.
How cold is the water in July in Isle Royale National Park?
In Isle Royale National Park, the average seawater temperature in July is 42.8°F (6°C). Swimming in 42.8°F (6°C) is considered dangerous. Unprotected immersion in temperatures below 50°F (10°C) causes quickly maximum intensity cold shock with hyperventilation.
What is the average length of the day in July in Isle Royale National Park?
In July, the average day length in Isle Royale National Park, Michigan, is 15h and 35min.
When is the sunrise / sunset in July in Isle Royale National Park?
In July, on the first day of the month, sunrise is at 6:00 am and sunset at 9:58 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 9:32 pm EDT.
What month has the most sunshine in Isle Royale National Park?
The month with the most sunshine in Isle Royale National Park, Michigan, is July, with an average of 10h of sunshine.
How many hours of sunshine does Isle Royale National Park have in July?
In July, the average sunshine duration in Isle Royale National Park is 10h.
When is the highest UV index in Isle Royale National Park?
June and July, with an average maximum UV index of 7, are months with the highest UV index in Isle Royale National Park.
How high is the UV index in July in Isle Royale National Park?
In July, the average daily maximum UV index in Isle Royale National Park is 7. A UV Index reading of 6 to 7 represents a high health threat from unsafe exposure to Sun's UV rays.
Average temperature in July
Isle Royale National Park, MI
- Average high temperature in July: 75°F
The warmest month (with the highest average high temperature) is July (75°F).
The month with the lowest average high temperature is January (18°F).
- Average low temperature in July: 54°F
The month with the highest average low temperature is July (54°F).
The coldest month (with the lowest average low temperature) is January (0°F).
Average rainfall in July
Isle Royale National Park, MI
- Average rainfall in July: 3"
The wettest month (with the highest rainfall) is September (3.4").
The driest month (with the least rainfall) is February (1.5").
Average rainfall days in July
Isle Royale National Park, MI
- Average rainfall days in July: 11 days
The months with the highest number of rainy days are June and September (13 days).
The months with the least rainy days are February and April (8 days).
Average sea temperature in July
Isle Royale National Park, MI
- Average sea temperature in July: 43°F
The best month for swimming (with the highest average sea temperature) is August (55°F).
The coldest months (with the lowest average sea temperature) are January, February, March and April (36°F).
Average daylight in July /
Average sunshine in July
Isle Royale National Park, MI
- Average daylight in July: 15h and 4min
The month with the longest days is June (Average daylight: 16h and 0min).
The month with the shortest days is December (Average daylight: 8h and 30min).
- Average sunshine in July: 10h
The month with the most sunshine is July (Average sunshine: 10h).
The months with the least sunshine are November and December (Average sunshine: 3h).
Average UV index in July
Isle Royale National Park, MI
- Average UV index in July: 7
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 1).
Isle Royale National Park, Michigan, USA
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