Mackinaw City (MI) Temperature by Month

Mackinaw City in Michigan, United States of America sees significant seasonal temperature differences, with daytime highs between -3°C (27°F) in February and 24°C (75°F) in July, averaging 11°C (52°F) annually. Explore the full monthly breakdown below.

Visitors to Mackinaw City will encounter a climate influenced by big temperature differences across the year. Nighttime temperatures range from 14°C (57°F) in July to -12°C (10°F) in February.

The chart below illustrates the average maximum day and minimum night temperatures in Mackinaw City by month:

The coolest part of the day is typically between 4 AM and 6 AM, while 3 PM is usually the warmest, when solar heating is at its peak.

The chart below shows the average temperature throughout the year:

Mackinaw City's average annual maximum temperature is 11°C (52°F). To put that in context, here's how it compares to a few well-known destinations:

Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.

Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.

Seoul, South Korea averages 18°C (64°F) a year, with four clear seasons, cold winters, and hot humid summers.

Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained, so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.

For more on Mackinaw City's weather, including monthly rainfall, sunshine hours, and humidity, visit our Mackinaw City climate page.