Mackinac Island Weather: May
 |
Average Day Temperature: | 51.4°F |
|
Average Night Temperature: | 45.2°F |
|
Sea Water Temperature: | 42.0°F |
|
Number of Sunny Days: | 10 days |
| Sunshine Hours: | 14.4 - 15.5 hours | |
|
Number of Rainy Days: | 2 days |
| Precipitation Totals: | 0.8 in | |
| detailed information | ||
forecast
| Mackinac Island |
Temperature
| Mackinac Island |
Air Temperature in May, °F
The highest day temperature in May 2025 was 59°F. The lowest night temperature was 34°F. The average values for day and night temperatures during May were 49.3°F и 43.9°F respectivly.
Mackinac Island Water Sea Temperature in May, °F
The average sea surface temperature in May 2025 for Mackinac Island was 43.0°F. The maximum and minimum values were 36.4°F and 50.0°F respectively.
You can expect various weather conditions during May. Be ready for sunny, cloudy or even gloomy days.
Precipitation Totals in May, in
Precipitation total in May for Mackinac Island is 0.8 in.
The average wind speed in May is 9.1 mph. It makes May one of the most windless months of the year for Mackinac Island.
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 May is 8.0 hours.
Mackinac Island on the Weather Map
| Chicago |  |
-2 |
| Hawaii | |
+78 |
| Honolulu | |
+78 |
| Houston | |
+44 |
| Las Vegas |  |
+40 |
| Los Angeles | |
+52 |
| Maui | |
+72 |
| Miami | |
+72 |
| Miami Beach |  |
+80 |
| New York | |
+18 |
| 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 |