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Surf Forecasts:

Marathon surfForecast / Lake Superior / Canada

information circle12 Day Weather and Surf, issued 7 pm Monday 01 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
14.5° C
 (Which is 1.5°C warmer than normal for this time of year)
Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Moderate rain (total 12mm), heaviest on Tue night. Very mild (max 18°C on Tue morning, min 5°C on Wed night). Wind will be generally light.

Days 3-6 Weather Summary Moderate rain (total 10mm), heaviest on Thu night. Very mild (max 12°C on Sun afternoon, min 6°C on Sat night). Mainly fresh winds.

Tuesday
02
Wednesday
03
Thursday
04
Friday
05
Saturday
06
Sunday
07
Mon
08
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
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 (?)000000000000000000000
Wind
(km/h)
10
SSE
15
S
15
S
10
SSW
20
NNW
20
NNW
10
WNW
20
W
30
W
30
W
15
WNW
20
WNW
20
WNW
20
NW
20
NW
15
NNW
20
NNW
20
NNW
5
SE
20
SSW
20
SSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		onononcross-
off		cross-
off		crosscrosscross-
on		crosscrosscrosscrosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
on		onon
High Tide
/ height (m)
n/a
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n/a
n/a
n/a
Low Tide
/ height (m)
n/a
n/a
n/a
n/a
n/a
n/a
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Tuesday
02
Wednesday
03
Thursday
04
Friday
05
Saturday
06
Sunday
07
Mon
08
Sunrise-7:03--7:05--7:05--7:07--7:09--7:09--7:11-
Sunset--8:27--8:23--8:22--8:20--8:17--8:15--8:14
clear
clear
clear
rain showers
light rain
cloud
cloud
cloud
light rain
light rain
light rain
part cloud
light rain
light rain
rain showers
part cloud
part cloud
part cloud
clear
part cloud
part cloud
Rain (mm)
---82---232-311------
Temp. °C17181817127668107989109912101515
Feels °C (?)171716168210233324554661111
  • 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 Continuing clean conditions at Marathon (calm at Pukaskwa(Aut)-Ont 23 km from Marathon). not gfswave

    1 hour 27 minutes ago Marathon
Expand
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23 km away, 1 h 27 min ago

0 km/h
N
14.6
14.5
Air / Water (°C)
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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

Information about the Marathon Surf forecast

The above surf forecast table for Marathon provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Marathon can be found by selecting the local surf guide option on the grey menu. Our Marathon 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 (Marathon) 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 Marathon 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 holiday in Lake Superior - Canada? If you are looking for accommodation near Marathon, camping, hotels and holiday cottages in Lake Superior - Canada, consider staying in Michipicoten Harbour which is 149 km (93 miles) away.

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