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Surf Forecasts

Marathon surfForecast / Lake Superior / Canada

information circle12 Day Weather and Surf, issued 7 am Saturday 29 Mar 2025 EDT
Forecast update in 40 min 34 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
33.4°F
 (Which is slightly cooler than normal)
Hourly12 Days
Lake Superior – Canada Surf
Print Surf Table
Updates in 40 min 34 s Forecast update imminent 
Saturday
29
Sunday
30
Monday
31
Tuesday
01
Wednesday
02
Thursday
03
Friday
04
Saturday
05
Sunday
06
Monday
07
Tuesday
08
Wednesday
09
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 (ft) & direction (?)————————————————————————————————————
Period(s) (?)------------------------------------
Wave
Graph
(?)Metric surfscale
Energy (?)000000000000000000000000000000000000
Wind
(mph)
15
NE
10
NE
10
NE
20
NE
20
NE
20
NNE
15
N
15
NNW
0
N
5
ENE
5
SSE
10
SE
10
ESE
20
E
15
NE
10
NNW
10
WNW
5
NNW
5
SSE
5
SW
5
SW
20
N
10
NW
20
W
15
N
15
NNW
5
N
10
N
5
W
0
E
10
SSE
10
S
5
SSW
5
SW
5
SW
5
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		offoffcross-
off		glasscross-
off		cross-
on		cross-
on		crosscross-
off		cross-
off		cross-
off		crosscross-
off		cross-
on		ononcross-
off		cross-
off		crosscross-
off		cross-
off		cross-
off		offcrossglasscross-
on		onononcross-
on		off
High Tide
/ height (ft)
n/a
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n/a
Low Tide
/ height (ft)
n/a
n/a
n/a
n/a
n/a
n/a
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Saturday
29
Sunday
30
Monday
31
Tuesday
01
Wednesday
02
Thursday
03
Friday
04
Saturday
05
Sunday
06
Monday
07
Tuesday
08
Wednesday
09
Sunrise7:31--7:28--7:26--7:24--7:22--7:20--7:18--7:16--7:13--7:11--7:09--7:07--
Sunset-8:10--8:13--8:14--8:15--8:16--8:19--8:20--8:22--8:22--8:24--8:25--8:28-
part cloudcloudpart cloudcloudcloudcloudpart cloudcloudpart cloudpart cloudpart cloudpart cloudpart cloudlight snowmod snowsnow showerscloudpart cloudcloudcloudlight snowsnow showerspart cloudpart cloudpart cloudcloudpart cloudpart cloudcloudcloudpart cloudpart cloudpart cloudpart cloudcloudcloud
Rain (in)
------------------------------------
Temp. °F233430233027192723192827283632323636343736343636273228213228303232363736
Feels °F (?)923197161051212101916162316192527283028272521121916102319192125303030

Short Range Forecast: Mostly dry. Icy conditions (max 34°F on Sat afternoon, min 9°F on Mon night). Winds decreasing (fresh winds from the NNE on Sun night, calm by Mon night).

Days 3-6 Weather Summary A moderate fall of snow, heaviest on Wed night. Icy conditions (max 36°F on Wed afternoon, min 7°F on Tue morning). Winds decreasing (fresh winds from the E on Wed night, calm by Thu night).

Days 6-9 Weather Summary A dusting of new snow. Icy conditions (max 37°F on Fri afternoon, min 14°F on Sun night). Winds increasing (calm on Fri morning, fresh winds from the WSW by Sat night).

Long Range Forecast: Mostly dry. Icy conditions (max 37°F on Wed afternoon, min 14°F on Mon morning). Winds increasing (calm on Mon night, fresh winds from the NNE by Thu morning).

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  • Map Icons:
  • Break
  • Live Wave Height (ft)
  • Live Wind Speed (mph)
  • Surf Rating (10 Max)
  • Ocean Swells (ft)
  • Wind Speed (mph)
<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:
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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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