World Resorts USA Mackinac Island

Mackinac Island Monthly Weather Averages

Please click on any column to get detailed information about Mackinac Island weather in that particular month. You will get daily weather information for that month for the last several years.

Day & Night air temperature, °F

The warmest month in Mackinac Island is august. The average daily temp is 69.8°F. The average nightly temp is 63.9°F.

Sea water temperature, °F

The warmest sea temperature usually observed in August. Average daily sea water temperature during this month is 66.6°F.

Precipitation total, in.

February is the month with least precipitations during the year. The average precipitation totals for this month is 0.5 in. The month with most precipitation total is April.

Number of rainy days

This chart shows averages for the last three years. It shows medium and heavy rains only, it doesn't show light rains.

Wind speed, mph
Sunny, partly cloudy and cloudy days
Average sunny hours

Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.

* Charts above show average data for the last 3 years.

Best time for vacation in Mackinac Island

Sunniest months:
July 15 days
August 15 days
September 14 days
Warmest months:
August 69.8 °F
July 69.6 °F
June 63.4 °F
Warmest sea temp:
August 66.6 °F
July 64.8 °F
September 62.4 °F
Coldest months:
February 23.1 °F
January 24.6 °F
March 31.3 °F
Rainiest months:
August 4 days
July 3 days
March 2 days
Windiest months:
November 13.6 mph
December 13.0 mph
April 11.7 mph

Mackinac Island on a weather map

Mackinac Island
+57°F
NW 6 mph
Feels like: +55°F
Precip.: 0%
Places in USA:
Name
°F
+52°F
+61°F
+73°F
+73°F
+81°F
+61°F
+84°F
+59°F
+81°F
+63°F
+54°F
+81°F
+82°F
+77°F
+68°F
24 Hours Forecast
Mackinac Island
Local time: 00:16
May 19, sunday
0300
57°F
E
9 mph
0600
55°F
E
9 mph
0900
55°F
SE
8 mph
1200
59°F
E
6 mph
1500
61°F
E
7 mph
1800
59°F
SE
6 mph
2100
57°F
E
4 mph
May 20, monday
0000
55°F
N
3 mph
Units of measurement: °C / °F