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Surf Forecasts:

Marathon surfForecast / Lake Superior / Canada

information circle48hr Weather and Surf, issued 1 am Tuesday 02 Sep 2025 EDT
Forecast 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
15.0° C
 (Which is 2.1°C warmer than normal for this time of year)
Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Tuesday
02
Wednesday
03
Thursday
04
11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)————————————————————————
Period(s) (?)------------------------
Wave
Graph
(?)Metric surfscale
Energy (?)000000000000000000000000
Wind
(km/h)
10
S
10
SSE
15
S
15
S
15
SSW
20
SSW
20
S
10
SSE
20
S
10
SSW
10
SSW
25
NNW
20
N
25
NNW
20
NNW
20
NNW
15
NW
15
NW
20
WNW
15
WNW
25
WNW
25
W
25
W
25
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on		oncross-
on		onononcross-
on		cross-
on		ononcross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crosscrosscrosscrosscross-
on
High Tide
/ height (m)
n/a
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n/a
Low Tide
/ height (m)
n/a
n/a
n/a
n/a
n/a
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Tuesday
02
Wednesday
03
Thursday
04
Sunrise---7:03-------7:05-------7:05----
Sunset-------8:27-------8:23-------8:22
clear
clear
clear
clear
clear
part cloud
clear
clear
cloud
light rain
mod rain
light rain
cloud
cloud
cloud
cloud
light rain
light rain
light rain
light rain
rain showers
cloud
cloud
cloud
Rain (mm)
---------182----12211---
Temp. °C1616161618181817181616119665555469910
Feels °C (?)161615151716161615161664010110-10334
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for Lake Superior

  1. weather stationWind Update Wind reports 37 km away suggest it is still onshore at Marathon (light winds from the S at Slate Island Buoy). not gfswave

    1 hour 33 minutes ago Marathon
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37 km away, 1 h 33 min ago

14 km/h
S
16.4
15.0
Air / Water (°C)
Please reload the page to see if there are any updates.

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.

View detailed surf forecast for Marathon at:
surf-forecast.com

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