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Marathon Surf Forecast
/ Lake Superior (2 breaks) / Ontario (21 breaks) /
Surf Forecasts:
Marathon surfForecast / Lake Superior / Canada
48hr Weather and Surf, issued 1 am Thursday 07 May 2026 EDTForecast update in hr min s Forecast update imminent
Marathon surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Marathon sea temperature is
1.7° C
(Which is normal for this time of year)Updates in hr min s Forecast update imminent
Short Range ForecastSome drizzle, heaviest during Sat morning. Mild temperatures (max 7°C on Sat afternoon, min 1°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 7 | Friday 8 | Saturday 9 | ||||||||||||||||||||||
2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 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 | 0 | 0 | 0 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | cross | cross-on | cross-on | cross-on | cross-on | glassy | on | on | on | cross-on | on | on | glassy | cross-on | cross | glassy | off | off | cross-off | cross-off | cross-off | cross-off | |
High Tide | ||||||||||||||||||||||||
Low Tide | ||||||||||||||||||||||||
 | |  | | | |  | | | | |  | | | | |  | |  | | | | |  | |
 | — | 6:16 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:08 | — | — | — | — | — | — | — | 9:09 | — | — | — | — | — | — | — | 9:12 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | |
Temp °C | 1 | 1 | 2 | 3 | 4 | 4 | 3 | 2 | 2 | 2 | 3 | 5 | 6 | 6 | 5 | 3 | 3 | 3 | 3 | 6 | 6 | 7 | 6 | 4 |
-3 | -2 | -1 | -3 | -2 | -2 | -2 | -1 | -2 | -2 | -1 | 0 | -1 | 0 | 2 | -1 | 0 | 0 | -1 | 1 | 2 | 2 | 2 | 0 | |
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) | 1352 | 1350 | 1350 | 1350 | 1350 | 1352 | 1360 | 1364 | 1350 | 1352 | 1352 | 1370 | 1364 | 1360 | 1360 | 1360 | 1360 | 1371 | 1371 | 1962 | 1783 | 1771 | 1962 | 1421 |
Best forecast wave conditions in Lake Superior - Canada | ||||||||||||||||||||||||
Best forecast wave conditions in Canada | ||||||||||||||||||||||||
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 Marathon 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.
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