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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 7 pm Thursday 23 Oct 2025 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
11.9° C
(Which is 4.9°C warmer than normal for this time of year)Updates in hr min s Forecast update imminent
Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | |||||||||||||||||||||
| 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 | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| Period(s) (?) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 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) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | glass | cross | cross | cross- on | cross | cross | cross- on | cross- on | cross- on | cross- on | cross | cross | cross- on | cross- on | cross- on |
High Tide / height (m) | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a |
Low Tide / height (m) | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a | n/a n/a |
Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | 8:18 | - | - | - | - | - | - | - | 8:21 | - | - | - | - | - | - | - | 8:22 | - |
| Sunset | 6:42 | - | - | - | - | - | - | - | 6:39 | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - | - |
 |  | |  | | | | |  | |  | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 6 | 5 | 4 | 4 | 4 | 3 | 3 | 4 | 6 | 4 | 3 | 3 | 3 | 3 | 4 | 6 | 7 | 6 | 5 | 5 | 4 | 6 | 8 | 10 |
| Feels °C (?) | 0 | -1 | -2 | -1 | -1 | -2 | -2 | -1 | 2 | 1 | 0 | -1 | -1 | -1 | 0 | 1 | 3 | 2 | 1 | 1 | 1 | 3 | 4 | 5 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Lake Superior
Continuing clean conditions at Marathon (calm at Pukaskwa Park Airport 24 km from Marathon). not gfswave
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24 km away, 1 h 42 min ago
4 km/h
N
3.6
11.9
Air / Water (°C)
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