‹ Mackinac Island weather by month
Typical March weather
Mackinac Island
Michigan · March
39° days
16° nights
about 10 rainy or snowy days · 12 hours of daylight · lake 33°
What to pack
- Warm coat
- Gloves & beanie
What March feels like
March is the awkward one — the island is still asleep and the calendar has not caught up with the thaw. Fort Mackinac and the Grand Hotel are weeks from opening, so if you want Mackinac out of season, April rewards patience considerably better than this.
Expect about 10 days with something falling — rain, snow, or the sloppy mix in between. The air runs dry — whatever the thermometer says, it wears easy. Nearly every night dips below freezing.
Can you swim?
The lake runs about 33° — frigid — locals in wetsuits only.
The numbers
| Typical high | 39° |
|---|---|
| Typical low | 16° |
| Days with rain or snow | 10 |
| Rain or melted snow | 1.7 in |
| Humidity | dry air |
| Water temperature | 33° |
| Sunrise / sunset (mid-month) | 7:50 am / 7:44 pm |