The surf forecast is flat right now for Marathon, ON

  • WEATHER - LIVE
    47° SW @ 1mph
  • BUOY 45136
    0.7ft @ 3s
  • WATER TEMP
    37° 5/4+, Boots/Gloves(5+)

Forecast

Surf
Swell
  • 8ft
  • 6ft
  • 4ft
  • 2ft
SAT 20
SUN 21
MON 22
TUE 23
WED 24
9am
  • Clean
  • Fair
  • Choppy
Conditions are flat and clean at 9am on Sat 6/20
Compass Map
Forecast CompassCompass Wind ArrowCompass Primary Swell ArrowCompass Secondary Swell Arrow
Wind Arrow
WINDSSW 3 mph
Primary Swell Arrow
PRIMARYSW (232) 0.6 ft @ 4 sec
Secondary Swell Arrow
SECONDARY
No Tide Data

Forecast Details

Basic
Detail
  • Saturday, Jun 20
    SURFWINDSWELL
    6am
    0-1 ft
    clean
    SE
    2mph
    0.8ft
    4s
    SW
    12pm
    flat
    clean
    SSW
    4mph
    0.5ft
    3s
    SW
    6pm
    flat
    fair
    WSW
    6mph
    0.3ft
    3s
    WSW
  • Sunday, Jun 21
    SURFWINDSWELL
    6am
    flat
    clean
    NNE
    2mph
    0.3ft
    3s
    SW
    12pm
    flat
    fair
    NW
    3mph
    0ft
    0s
    S
    6pm
    flat
    fair
    WSW
    7mph
    0ft
    0s
    S
  • Monday, Jun 22
    SURFWINDSWELL
    6am
    flat
    clean
    N
    5mph
    0ft
    0s
    S
    12pm
    flat
    clean
    N
    7mph
    0ft
    0s
    S
    6pm
    flat
    fair
    NW
    7mph
    0ft
    0s
    S
  • Tuesday, Jun 23
    SURFWINDSWELL
    6am
    flat
    fair
    WNW
    5mph
    0ft
    0s
    S
    12pm
    flat
    choppy
    WNW
    12mph
    0ft
    0s
    S
    6pm
    flat
    choppy
    W
    15mph
    0ft
    0s
    S
  • Wednesday, Jun 24
    SURFWINDSWELL
    6am
    flat
    clean
    WNW
    1mph
    0ft
    0s
    S
    12pm
    flat
    choppy
    W
    11mph
    0ft
    0s
    S
    6pm
    flat
    choppy
    W
    13mph
    0ft
    0s
    S
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This forecast is for South-West facing beaches, and was updated Jun 20, 2026 @ 3:40am.
Read more about the Surf Captain forecasts.

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