The surf forecast is flat right now for Marathon, ON

  • WEATHER - LIVE
    13° N @ 2mph
  • BUOY FORECAST
    W0.4ft @ 5s
  • WATER TEMP
    40° 5/4+, Boots/Gloves(5+)

Forecast

Surf
Swell
5 day
16 day
  • 8ft
  • 6ft
  • 4ft
  • 2ft
THU 11
FRI 12
SAT 13
SUN 14
7am
  • Clean
  • Fair
  • Choppy
Conditions are flat and clean at 7am on Wed 12/10
Compass Map
Forecast Compass Compass Wind Arrow Compass Primary Swell Arrow Compass Secondary Swell Arrow
Wind Arrow
WIND NNE 12 mph
Primary Swell Arrow
PRIMARY SW (235) 0.3 ft @ 4 sec
Secondary Swell Arrow
SECONDARY N (9) 0.7 ft @ 3 sec
No Tide Data

Forecast Details

Basic
Detail
  • Wednesday, Dec 10
    SURF WIND SWELL
    12pm
    flat
    choppy
    NNW
    9mph
    0.5ft
    2s
    NNW
    6pm
    flat
    choppy
    NNW
    12mph
    0.5ft
    5s
    W
  • Best Board for Wednesday
  • Thursday, Dec 11
    SURF WIND SWELL
    6am
    flat
    fair
    N
    7mph
    0.9ft
    5s
    WNW
    12pm
    flat
    clean
    N
    7mph
    0.5ft
    4s
    W
    6pm
    flat
    fair
    NNW
    6mph
    0ft
    4s
    W
  • Friday, Dec 12
    SURF WIND SWELL
    6am
    flat
    clean
    NNE
    3mph
    0ft
    0s
    S
    12pm
    flat
    clean
    E
    3mph
    0ft
    0s
    S
    6pm
    flat
    clean
    NNE
    4mph
    0ft
    0s
    S
  • Saturday, Dec 13
    SURF WIND SWELL
    6am
    1+ ft
    choppy
    N
    18mph
    2.1ft
    6s
    WSW
    12pm
    0-1 ft
    choppy
    N
    17mph
    1.7ft
    6s
    W
    6pm
    0-1 ft
    choppy
    N
    15mph
    1.2ft
    6s
    WSW
  • Best Surf Trip
    This Forecast Looks Perfect. Book the Trip to Match.
  • Sunday, Dec 14
    SURF WIND SWELL
    6am
    flat
    clean
    NNE
    15mph
    0.4ft
    5s
    WSW
    12pm
    flat
    clean
    NNE
    13mph
    0.4ft
    5s
    W
    6pm
    flat
    clean
    NNE
    11mph
    0.3ft
    4s
    W
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This forecast is for South-West facing beaches, and was updated Dec 10, 2025 @ 8:46pm.
Read more about the Surf Captain forecasts.