Mackinac Island Weather: October
![]() |
Average Day Temperature: | 52.9°F |
![]() |
Average Night Temperature: | 49.2°F |
![]() |
Sea Water Temperature: | 56.6°F |
![]() |
Number of Sunny Days: | 10 days |
| Sunshine Hours: | 10.1 - 11.7 hours | |
![]() |
Number of Rainy Days: | 2 days |
| Precipitation Totals: | 1.3 in | |
| detailed information | ||
forecast
| Mackinac Island |
Temperature
| Mackinac Island |
Air Temperature in October, °F
The highest day temperature in October 2025 was 77°F. The lowest night temperature was 38°F. The average values for day and night temperatures during October were 55.4°F и 50.8°F respectivly.
Mackinac Island Water Sea Temperature in October, °F
The average sea surface temperature in October 2025 for Mackinac Island was 59.0°F. The maximum and minimum values were 52.4°F and 64.2°F respectively.
You can expect various weather conditions during October. Be ready for sunny, cloudy or even gloomy days.
Precipitation Totals in October, in
Precipitation total in October for Mackinac Island is 1.3 in. It makes october the most rainy month of the year.
The average wind speed in October is 11.1 mph.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Mackinac Island in October is 5.7 hours.
| Chicago | ![]() |
-2 |
| Hawaii | ![]() |
+78 |
| Honolulu | ![]() |
+78 |
| Houston | ![]() |
+44 |
| Las Vegas | ![]() |
+40 |
| Los Angeles | ![]() |
+52 |
| Maui | ![]() |
+72 |
| Miami | ![]() |
+72 |
| Miami Beach | ![]() |
+80 |
| New York | ![]() |
+20 |
| San Diego | ![]() |
+54 |
| San Francisco | ![]() |
+46 |
| Sarasota | ![]() |
+62 |
| Tampa | ![]() |
+62 |
| Washington | ![]() |
+28 |
| 0600 | ![]() |
22°F | NE 24 mph |
| 0900 | ![]() |
26°F | NE 22 mph |
| 1200 | ![]() |
26°F | NE 19 mph |
| 1500 | ![]() |
28°F | NE 16 mph |
| 1800 | ![]() |
30°F | NE 16 mph |
| 2100 | ![]() |
30°F | NE 16 mph |
| 0000 | ![]() |
30°F | E 17 mph |
| 0300 | ![]() |
28°F | E 17 mph |
































