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Surf Forecasts

Marathon surfForecast / Lake Superior / Canada

information circle12 Day Weather and Surf, issued 1 am Saturday 19 Apr 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
1.3° C
 (Which is normal for this time of year)
Hourly12 Days
Lake Superior – Canada Surf
Print Surf Table
Updates in  hr  min  s Forecast update imminent 
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sunday
27
Monday
28
Tuesday
29
Wednesday
30
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
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
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 (?)000000000000000000000000000000000000
Wind
(km/h)
20
NNE
10
WNW
5
NNW
15
SSW
10
S
10
NE
30
NE
30
NNE
25
N
20
NNE
15
ENE
10
ENE
10
SSE
20
SSE
0
S
0
SSW
5
WNW
15
NNE
10
NE
10
W
5
NW
10
NNE
10
N
10
E
30
SSE
30
SSE
20
S
10
SW
15
SSW
5
SW
15
W
20
NW
10
NW
10
NNW
10
WSW
10
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offcrossglassononcross-
off		offoffoffoffcross-
off		cross-
off		cross-
on		cross-
on		glassglassglassoffoffcross-
on		cross-
off		offoffcross-
off		cross-
on		cross-
on		cross-
on		ononglasscross-
on		cross-
off		cross-
off		cross-
off		cross-
on		cross-
off
High Tide
/ height (m)
n/a
n/a
n/a
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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
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Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sunday
27
Monday
28
Tuesday
29
Wednesday
30
Sunrise6:48--6:46--6:43--6:41--6:41--6:39--6:37--6:35--6:33--6:31--6:30--6:28--
Sunset-8:43--8:44--8:45--8:46--8:49--8:50--8:52--8:52--8:53--8:55--8:57--8:59-
part cloudcloudpart cloudclearpart cloudcloudlight snowmod rainlight rainpart cloudpart cloudcloudcloudpart cloudpart cloudcloudcloudpart cloudpart cloudclearpart cloudcloudpart cloudpart cloudpart cloudcloudheavy raincloudcloudpart cloudcloudcloudpart cloudclearclearpart cloud
Rain (mm)
------583-----------------16---------
Temp. °C033221233343333566584587786564576686
Feels °C (?)-6-1-1-3-3-2-5-4-4-3-1-1-1-2-1333251153-10-2221021143

Short Range Forecast: A dusting of snow giving way to moderate rain (total 16mm) heaviest on Mon morning. Icy conditions (max 3°C on Sat afternoon, min -6°C on Sat night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Icy conditions (max 6°C on Thu afternoon, min 0°C on Thu night). Wind will be generally light.

Days 6-9 Weather Summary Moderate rain (total 16mm), heaviest on Sun night. Icy conditions (max 8°C on Fri afternoon, min 0°C on Fri morning). Winds increasing (calm on Fri night, fresh winds from the SSE by Sun night).

Long Range Forecast: Mostly dry. Mild temperatures (max 8°C on Wed afternoon, min 2°C on Tue night). Wind will be generally light.

  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
<span class="translation_missing" title="translation missing: en.leaflet.map_placeholder_alt">Map Placeholder Alt</span>
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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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