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Mackinac Island Surf Forecast
/ Lake Huron (3 breaks) / Michigan (11 breaks) /
Surf Forecasts:
Mackinac Island surfForecast / Lake Huron / USA
16 Day Weather and Surf, issued 7 pm Thursday 21 May 2026 EDTForecast update in hr min s Forecast update imminent
Mackinac Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Mackinac Island sea temperature is
3.9° C
(Which is normal for this time of year)Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 10°C on Fri night, min 6°C on Thu night). Winds decreasing (fresh winds from the ESE on Sat morning, calm by Sun afternoon). | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Tue afternoon. Very mild (max 16°C on Mon night, min 10°C on Sun night). Wind will be generally light. | ||||||||||||||||||||
Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | Wednesday 27 | Thu 28 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
Wind (km/h) | |||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | cross-off | glassy | on | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | |||||||||||||||||||||
Low Tide | |||||||||||||||||||||
 |  | |  | | |  | | | |  | |  | |  | | | | | | | |
 | — | 5:58 | — | — | 5:58 | — | — | 5:56 | — | — | 5:56 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — |
 | 9:07 | — | — | 9:08 | — | — | 9:09 | — | — | 9:10 | — | — | 9:12 | — | — | 9:13 | — | — | 9:14 | — | 9:15 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | |
Temp °C | 8 | 7 | 9 | 10 | 7 | 9 | 8 | 7 | 9 | 10 | 11 | 11 | 16 | 15 | 13 | 13 | 11 | 15 | 17 | 9 | 11 |
3 | 2 | 1 | 4 | -1 | 1 | 1 | 4 | 8 | 9 | 10 | 10 | 12 | 11 | 10 | 9 | 8 | 12 | 15 | 5 | 6 | |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
 kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1044 | 1296 | 1378 | 1264 | 420 | 399 | 399 | 1075 | 1079 | 1042 | 1029 | 1029 | 1029 | 1029 | 1129 | 1035 | 1065 | 1043 | 1029 | 1044 | 1057 |
Best forecast wave conditions in Lake Huron - United States | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Mackinac Island surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Mackinac Island Surf forecast
The above surf forecast table for Mackinac Island provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Mackinac Island can be found by selecting the local surf guide option on the grey menu. Our Mackinac Island surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Mackinac Island) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Mackinac Island may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Are you planning a vacation in Lake Huron - United States? If you are looking for accommodation near Mackinac Island, camping, hotels and condos and appartments in Lake Huron - United States, consider staying in Sault Sainte Marie which is 84 km (52 miles) away.
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