Water Temperature of Straits of Mackinac Near Mackinaw City, MI

Current Water Temperature

64.2°F

Measurement Time: Thursday, September 18, 2025, 6:40 AM EDT

Temperature Locations

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Local Points of Interest

Lake Michigan; Mackinac Bridge; Saint Ignace

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Straits of Mackinac

Station Name: Mackinac Straits West, Mackinaw City, MI
Station Type: Buoy
Data Source: National Data Buoy Center

Elevation Above Sea Level: 574 feet / 175 meters

Nearest Address:
Offshore
Mackinaw City, MI 49701
Mackinac County

GPS Coordinates: 45.825, -84.772

Nearby Water Temperatures

Lake Huron, Bois Blanc Island, MI (30.8 mi)
Little Traverse Bay, Petoskey, MI (32.8 mi)
St. Marys River, Barbeau, MI (41.2 mi)
St. Marys River, Barbeau, MI (41.7 mi)
Lake Huron, De Tour Village, MI (43.6 mi)
St. Marys River, Sault Ste. Marie, MI (50.5 mi)
St. Marys River, Sault Ste. Marie, MI (50.9 mi)
Seul Choix Bay, Port Inland, MI (53.8 mi)
Lake Michigan, Leland, MI (77.7 mi)
Manistee River, Grayling, MI (78.3 mi)
North Branch Au Sable River, Grayling, MI (78.5 mi)
Au Sable River, Luzerne, MI (82.7 mi)
Thunder Bay River, Alpena, MI (83.7 mi)
South Branch Au Sable River, Grayling, MI (85.0 mi)
Au Sable River, Mio, MI (86.3 mi)

Weather Near Mackinaw City, Michigan

Current Weather

61.3°F
Fog
Conditions: Fog
Humidity: 100%
Feels Like: 61.3°F
Wind: N 6.7 mph
Wind Gusts: 9.7 mph
Pressure: 30.09 in
Precipitation: 0 in
Cloud Cover: 75%
Visibility: 0 mi
UV Index: 1

Five Day Weather Forecast

Fog
Thu
H: 67°F
L: 58°F
Partly Cloudy
Fri
H: 59°F
L: 53°F
Partly Cloudy
Sat
H: 62°F
L: 56°F
Moderate rain
Sun
H: 64°F
L: 60°F
Patchy rain nearby
Mon
H: 68°F
L: 61°F

Air Quality

AQI: 1 - Good
PM2.5: 7.77 μg/m3
PM10: 8.14 μg/m3
Carbon Monoxide: 312.65 μg/m3
Nitrogen Dioxide: 3.15 μg/m3
Sulphur Dioxide: 0.19 μg/m3
Ozone: 87 μg/m3

Astronomical

Sunrise: 7:21 AM
Sun Transit: 1:33 PM
Sunset: 7:44 PM
Daylight: 12 hrs 22 mins
Moonrise: 3:37 AM
Moon Transit: 11:15 AM
Moonset: 6:38 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:45 AM - 1:15 PM

Minor Periods

6:08 PM - 7:38 PM
3:07 AM - 4:37 AM

Action Rating: 3 out of 5

Dense Fog Advisory issued September 18 at 6:03AM EDT until September 18 at 9:00AM EDT by NWS Marquette MI

Effective: Thu September 18, 2025, 6:03 AM
Expires: Thu September 18, 2025, 9:00 AM

* WHAT...Visibility 1/4 mile or less in dense fog. * WHERE...Luce and Northern Schoolcraft Counties. * WHEN...Until 9 AM EDT this morning. * IMPACTS...Low visibility could make driving conditions hazardous.

If driving, slow down, use your headlights, and leave plenty of distance ahead of you.
Thursday, September 18, 2025

Weather Forecast

Conditions: Fog
Average Temperature: 63.4°F
Average Humidity: 89%
Chance of Rain: 0%
Wind: 12.5 mph
UV Index: 0.9

Air Quality

AQI: 1 - Good
PM2.5: 6.85 μg/m3
PM10: 7.19 μg/m3
Carbon Monoxide: 329.37 μg/m3
Nitrogen Dioxide: 3.6 μg/m3
Sulphur Dioxide: 0.38 μg/m3
Ozone: 83.96 μg/m3

Astronomical

Sunrise: 7:21 AM
Sun Transit: 1:33 PM
Sunset: 7:44 PM
Daylight: 12 hrs 22 mins
Moonrise: 3:37 AM
Moon Transit: 11:15 AM
Moonset: 6:38 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:45 AM - 1:15 PM

Minor Periods

6:08 PM - 7:38 PM
3:07 AM - 4:37 AM

Action Rating: 3 out of 5

Friday, September 19, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 56.4°F
Average Humidity: 73%
Chance of Rain: 0%
Wind: 13.2 mph
UV Index: 1.2

Air Quality

AQI: 1 - Good
PM2.5: 2.6 μg/m3
PM10: 2.84 μg/m3
Carbon Monoxide: 288.16 μg/m3
Nitrogen Dioxide: 2.38 μg/m3
Sulphur Dioxide: 0.33 μg/m3
Ozone: 52.64 μg/m3

Astronomical

Sunrise: 7:23 AM
Sun Transit: 1:32 PM
Sunset: 7:42 PM
Daylight: 12 hrs 19 mins
Moonrise: 4:51 AM
Moon Transit: 12:01 AM
Moonset: 6:58 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:31 AM - 2:01 PM

Minor Periods

6:28 PM - 7:58 PM
4:21 AM - 5:51 AM

Action Rating: 3 out of 5

Saturday, September 20, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 58.5°F
Average Humidity: 78%
Chance of Rain: 0%
Wind: 22.8 mph
UV Index: 0.6

Air Quality

AQI: 1 - Good
PM2.5: 2.57 μg/m3
PM10: 2.8 μg/m3
Carbon Monoxide: 255.6 μg/m3
Nitrogen Dioxide: 1.92 μg/m3
Sulphur Dioxide: 0.42 μg/m3
Ozone: 66.2 μg/m3

Astronomical

Sunrise: 7:24 AM
Sun Transit: 1:32 PM
Sunset: 7:40 PM
Daylight: 12 hrs 16 mins
Moonrise: 6:02 AM
Moon Transit: 12:45 AM
Moonset: 7:14 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

12:36 AM - 3:06 AM
12:15 AM - 2:45 PM

Minor Periods

6:44 PM - 8:14 PM
5:32 AM - 7:02 AM

Action Rating: 3 out of 5

Sunday, September 21, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 61°F
Average Humidity: 81%
Chance of Rain: 89%
Wind: 15 mph
UV Index: 0.8

Air Quality

AQI: 1 - Good
PM2.5: 6.01 μg/m3
PM10: 6.21 μg/m3
Carbon Monoxide: 290.01 μg/m3
Nitrogen Dioxide: 4.94 μg/m3
Sulphur Dioxide: 1.89 μg/m3
Ozone: 81.84 μg/m3

Astronomical

Sunrise: 7:25 AM
Sun Transit: 1:32 PM
Sunset: 7:38 PM
Daylight: 12 hrs 13 mins
Moonrise: 7:10 AM
Moon Transit: 1:26 PM
Moonset: 7:29 PM
Moon Phase: New
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

1:18 AM - 3:48 AM
12:56 AM - 3:26 PM

Minor Periods

6:59 PM - 8:29 PM
6:40 AM - 8:10 AM

Action Rating: 3 out of 5

Monday, September 22, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 63.4°F
Average Humidity: 92%
Chance of Rain: 85%
Wind: 8.7 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 14.33 μg/m3
PM10: 14.63 μg/m3
Carbon Monoxide: 382.52 μg/m3
Nitrogen Dioxide: 6.03 μg/m3
Sulphur Dioxide: 2.72 μg/m3
Ozone: 92.54 μg/m3

Astronomical

Sunrise: 7:26 AM
Sun Transit: 1:31 PM
Sunset: 7:36 PM
Daylight: 12 hrs 10 mins
Moonrise: 8:17 AM
Moon Transit: 2:06 PM
Moonset: 7:45 PM
Moon Phase: New
Moon Illumination: 2.9%

Best Times for Fishing or Hunting

Major Periods

1:59 AM - 4:29 AM
1:36 PM - 4:06 PM

Minor Periods

7:15 PM - 8:45 PM
7:47 AM - 9:17 AM

Action Rating: 5 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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