18.03
wed
wed
Day
23°F
N 16 mph
Precip.
100%
100%
Night
30°F
NE 9 mph
Precip.
100%
100%
19.03
thu
thu
Day
28°F
SE 8 mph
Precip.
0%
0%
Night
30°F
NW 5 mph
Precip.
0%
0%
20.03
fri
fri
Day
34°F
S 9 mph
Precip.
100%
100%
Night
34°F
N 3 mph
Precip.
0%
0%
21.03
sat
sat
Day
28°F
NE 7 mph
Precip.
0%
0%
Night
32°F
S 5 mph
Precip.
100%
100%
22.03
sun
sun
Day
21°F
SW 13 mph
Precip.
100%
100%
Night
19°F
SW 9 mph
Precip.
0%
0%
23.03
mon
mon
Day
18°F
NW 5 mph
Precip.
0%
0%
Night
10°F
SE 2 mph
Precip.
0%
0%
24.03
tue
tue
Day
27°F
NE 15 mph
Precip.
0%
0%
Night
27°F
SE 8 mph
Precip.
0%
0%
sea water
temperature
temperature
| Mackinac Island |
monthly
weather
weather
| Mackinac Island |
current
weather
weather
| Mackinac Island |
14 days
forecast
forecast
| Mackinac Island |
Sea water temperature in March, °F
Show year:
2026
2025
2024
The average sea water temperature in March of 2026 was 33.3°F. The highest and lowest sea temperatures during the month were 36.1°F and 32.0°F.
Sea water temperature in April, °F
Show year:
2025
2024
2023
The average sea water temperature in April of 2025 was 35.1°F. The highest and lowest sea temperatures during the month were 38.7°F and 32.2°F.
Air temperature in Mackinac Island, °F
Precipitation total in Mackinac Island, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Mackinac Island
Mackinac Island on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Mackinac Island
Local time: 19:02
March 18, wednesday
2100
28°F
NE
10 mph
10 mph
March 19, thursday
0000
30°F
NE
9 mph
9 mph
0300
30°F
NE
9 mph
9 mph
0600
28°F
E
7 mph
7 mph
0900
28°F
E
6 mph
6 mph
1200
28°F
SE
8 mph
8 mph
1500
30°F
SE
5 mph
5 mph
1800
30°F
E
3 mph
3 mph
