The surf forecast is flat right now for Marathon, ON

  • WEATHER - LIVE
    55° SW @ 7 → 9mph
  • BUOY 45136
    1ft @ 3s
  • WATER TEMP
    54° 4/3, Boots/Gloves(3+)

Forecast

  • 8ft
  • 6ft
  • 4ft
  • 2ft
SUN 20
MON 21
TUE 22
WED 23
11pm
  • Clean
  • Fair
  • Choppy
Conditions are flat and fair at 11pm on Sat 9/19
Compass Map
Forecast CompassCompass Wind ArrowCompass Primary Swell ArrowCompass Secondary Swell Arrow
Wind Arrow
WINDWNW 3 mph
Primary Swell Arrow
PRIMARYS (174) 0.4 ft @ 2 sec
Secondary Swell Arrow
SECONDARYS (186) 0.2 ft @ 3 sec
No Tide Data

Forecast Details

Basic
Detail
Forecast
History
  • Sunday, Sep 20
    SURFWINDSWELL
    6am
    flat
    clean
    NNE
    10mph
    0.3ft
    3s
    S
    12pm
    flat
    clean
    NNE
    12mph
    0.6ft
    3s
    N
    6pm
    flat
    clean
    NNE
    9mph
    0ft
    2s
    N
  • Monday, Sep 21
    SURFWINDSWELL
    6am
    flat
    clean
    ENE
    4mph
    0ft
    0s
    S
    12pm
    flat
    clean
    NE
    3mph
    0ft
    0s
    S
    6pm
    flat
    fair
    W
    4mph
    0ft
    0s
    S
  • Tuesday, Sep 22
    SURFWINDSWELL
    6am
    flat
    clean
    ENE
    6mph
    0ft
    0s
    S
    12pm
    flat
    clean
    SW
    4mph
    0ft
    0s
    S
    6pm
    flat
    fair
    WSW
    5mph
    0ft
    0s
    S
  • Wednesday, Sep 23
    SURFWINDSWELL
    6am
    flat
    clean
    E
    3mph
    0ft
    0s
    S
    12pm
    flat
    clean
    SSW
    3mph
    0ft
    0s
    S
    6pm
    flat
    fair
    WSW
    5mph
    0ft
    0s
    S
  • Thursday, Sep 24
    SURFWINDSWELL
    6am
    flat
    fair
    SSE
    4mph
    0ft
    0s
    S
    12pm
    flat
    choppy
    SSW
    8mph
    0ft
    0s
    S
    6pm
    flat
    fair
    SSW
    6mph
    0ft
    0s
    S
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This forecast is for South-West facing beaches, and was updated Sep 19, 2026 @ 9:49pm.
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