30.12
tue
tue
Day
21°F
SE 16 mph
Precip.
100%
100%
Night
19°F
E 14 mph
Precip.
0%
0%
31.12
wed
wed
Day
16°F
SE 19 mph
Precip.
0%
0%
Night
16°F
E 21 mph
Precip.
0%
0%
01.01
thu
thu
Day
16°F
E 21 mph
Precip.
0%
0%
Night
14°F
E 21 mph
Precip.
70%
70%
02.01
fri
fri
Day
16°F
E 19 mph
Precip.
64%
64%
Night
19°F
E 18 mph
Precip.
73%
73%
03.01
sat
sat
Day
21°F
E 14 mph
Precip.
20%
20%
Night
14°F
W 5 mph
Precip.
0%
0%
04.01
sun
sun
Day
21°F
NW 11 mph
Precip.
26%
26%
Night
27°F
NW 12 mph
Precip.
0%
0%
05.01
mon
mon
Day
30°F
N 8 mph
Precip.
0%
0%
Night
32°F
SE 6 mph
Precip.
100%
100%
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 December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 38.0°F. The highest and lowest sea temperatures during the month were 42.4°F and 35.4°F.
Sea water temperature in January, °F
Show year:
2025
2024
2023
The average sea water temperature in January of 2025 was 36.2°F. The highest and lowest sea temperatures during the month were 38.5°F and 34.0°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: 20:45
December 30, tuesday
2100
21°F
E
13 mph
13 mph
December 31, wednesday
0000
19°F
E
14 mph
14 mph
0300
19°F
SE
14 mph
14 mph
0600
18°F
S
9 mph
9 mph
0900
18°F
SE
10 mph
10 mph
1200
16°F
SE
19 mph
19 mph
1500
16°F
SE
20 mph
20 mph
1800
14°F
SE
23 mph
23 mph
