The surf forecast is flat right now for Marathon, ON

  • WEATHER FORECAST
    44° ENE @ 5mph
  • BUOY 45136
    0.3ft @ 3s
  • WATER TEMP
    35° 5/4+, Boots/Gloves(5+)

Forecast

Surf
Swell
  • 8ft
  • 6ft
  • 4ft
  • 2ft
SAT 23
SUN 24
MON 25
TUE 26
2am
  • Clean
  • Fair
  • Choppy
Conditions are flat and clean at 2am on Sat 5/23
Compass Map
Forecast CompassCompass Wind ArrowCompass Primary Swell ArrowCompass Secondary Swell Arrow
Wind Arrow
WINDNE 5 mph
Primary Swell Arrow
PRIMARYS (184) 0.5 ft @ 3 sec
Secondary Swell Arrow
SECONDARY
No Tide Data

Forecast Details

Basic
Detail
  • Saturday, May 23
    SURFWINDSWELL
    6am
    0-1 ft
    clean
    E
    7mph
    0.7ft
    4s
    S
    12pm
    1 ft
    choppy
    SSE
    11mph
    1.3ft
    4s
    S
    6pm
    2 ft
    choppy
    SSE
    12mph
    3.5ft
    5s
    S
  • Sunday, May 24
    SURFWINDSWELL
    6am
    2 ft
    choppy
    SSE
    7mph
    2.6ft
    6s
    S
    12pm
    1 ft
    choppy
    S
    7mph
    1.4ft
    4s
    S
    6pm
    0-1 ft
    choppy
    S
    10mph
    1.2ft
    4s
    S
  • Monday, May 25
    SURFWINDSWELL
    6am
    0-1 ft
    fair
    S
    4mph
    1.3ft
    4s
    S
    12pm
    0-1 ft
    fair
    S
    6mph
    1ft
    4s
    S
    6pm
    0-1 ft
    fair
    SW
    6mph
    1ft
    4s
    S
  • Tuesday, May 26
    SURFWINDSWELL
    6am
    flat
    clean
    NNE
    0mph
    0.3ft
    3s
    S
    12pm
    flat
    clean
    NNE
    9mph
    0.4ft
    3s
    S
    6pm
    flat
    choppy
    WNW
    10mph
    0.4ft
    4s
    S
  • Wednesday, May 27
    SURFWINDSWELL
    6am
    flat
    fair
    WNW
    5mph
    0ft
    3s
    S
    12pm
    flat
    choppy
    W
    14mph
    0ft
    0s
    S
    6pm
    flat
    clean
    W
    3mph
    0ft
    0s
    S
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This forecast is for South-West facing beaches, and was updated May 22, 2026 @ 9:40pm.
Read more about the Surf Captain forecasts.