Measurements:
°C
°F
CURRENT WEATHER
13:21
Mackinac Island
44°F
W 16 mph
Feels like: 36°F
Precip: 0%
World Resorts USA Mackinac Island Weather

7 Day Weather Forecast

04.23
thu
DAY
44°F
W 16 mph
precip
0%
NIGHT
42°F
NW 21 mph
precip
0%
04.24
fri
DAY
40°F
W 26 mph
precip
0%
NIGHT
36°F
S 9 mph
precip
100%
04.25
sat
DAY
38°F
W 6 mph
precip
0%
NIGHT
38°F
W 7 mph
precip
0%
04.26
sun
DAY
42°F
W 8 mph
precip
0%
NIGHT
40°F
NW 9 mph
precip
0%
04.27
mon
DAY
44°F
W 12 mph
precip
0%
NIGHT
44°F
W 19 mph
precip
100%
04.28
tue
DAY
52°F
NE 17 mph
precip
58%
NIGHT
44°F
N 9 mph
precip
0%
04.29
wed
DAY
40°F
NE 14 mph
precip
100%
NIGHT
38°F
NE 10 mph
precip
47%

Mackinac Island Sea Water Temperature in April, °F

Select Year: 2026 2025 2024

The average sea surface temperature in April 2026 for Mackinac Island was 1.0°F. The maximum and minimum values were 0.4°F and 1.8°F respectively.

Mackinac Island on the Weather Map

Best Time to Visit Mackinac Island
The most sunny months:
July 14 days
August 14 days
September 12 days
The most warm months:
August 71.6 °F
July 71.5 °F
September 64.4 °F
Warmest sea temperature:
August 69.2 °F
July 66.8 °F
September 64.1 °F
The most cold months:
February 20.1 °F
January 20.4 °F
December 28.6 °F
The most rainy months:
August 3 days
May 2 days
July 2 days
The most windy months:
November 13 mph
December 13 mph
April 11 mph
more details