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Surf Forecasts

Marathon surfForecast / Lake Superior / Canada

information circle12 Day Weather and Surf, issued 1 am Wednesday 02 Jul 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
5.4° C
 (Which is 1.3°C warmer than normal for this time of year)
Hourly12 Days
Lake Superior – Canada Surf
Print Surf Table
Updates in  hr  min  s Forecast update imminent 
Wednesday
02
Thursday
03
Friday
04
Saturday
05
Sunday
06
Monday
07
Tuesday
08
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
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)
10
WSW
10
WSW
10
N
5
NNE
15
WSW
10
SSE
15
S
20
S
15
SSE
10
SSE
5
SE
40
NE
25
NNE
20
NNE
5
W
10
S
10
S
10
S
10
S
5
S
10
SSE
25
SSE
5
SSW
15
SSE
5
SSE
10
S
5
SW
10
SSW
10
S
10
SSE
5
SSE
10
SSE
5
SE
10
SSW
5
S
10
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		cross-
off		glasscross-
on		cross-
on		cross-
on		oncross-
on		cross-
on		glassoffoffoffglasscross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		glasscross-
on		cross-
on		cross-
on		glassononcross-
on		cross-
on		cross-
on		glassononoff
High Tide
/ height (m)
n/a
n/a
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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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Wednesday
02
Thursday
03
Friday
04
Saturday
05
Sunday
06
Monday
07
Tuesday
08
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
Sunrise5:47--5:48--5:48--5:48--5:50--5:50--5:52--5:52--5:54--5:54--5:54--5:56--
Sunset-9:52--9:52--9:51--9:51--9:50--9:50--9:49--9:49--9:47--9:46--9:46--9:45-
part cloudpart cloudclearclearclearclearpart cloudpart cloudpart cloudcloudlight rainheavy rainlight raincloudclearpart cloudclearpart cloudclearpart cloudpart cloudlight rainlight rainheavy raincloudcloudcloudpart cloudpart cloudpart cloudpart cloudpart cloudpart cloudclearpart cloudheavy rain
Rain (mm)
----------5803--------1427-----------11
Temp. °C151616181813141313151718162021111210121517121515111211151413141716171919
Feels °C (?)13141516151210101114191711152098810131691113101110141212131716171920

Short Range Forecast: Mostly dry. Very mild (max 18°C on Thu morning, min 10°C on Thu night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 88mm), heaviest during Sat night. Warm (max 21°C on Sun night, min 8°C on Mon night). Mainly strong winds.

Days 6-9 Weather Summary Heavy rain (total 32mm), heaviest during Wed night. Very mild (max 17°C on Tue night, min 10°C on Tue morning). Wind will be generally light.

Long Range Forecast: Moderate rain (total 11mm), heaviest on Sun night. Very mild (max 19°C on Sun afternoon, min 8°C on Fri 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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