The surf forecast is 0-1 ft and semi glassy/bumpy right now for Marathon, ON
- WEATHER - LIVE
Nearby Wind Station 45136 - Slate Island56° ENE @ 2 → 4mph - BUOY 45136 Latest wave height and wave period from Buoy 451361.6ft @ 4s
- WATER TEMP Water temperature from nearby buoy station 4513654° 4/3, Boots/Gloves(3)
Forecast
Surf Swell
5 day 16 day
- 8ft
- 6ft
- 4ft
- 2ft
WED 17
THU 18
FRI 19
SAT 20
SUN 21
8pm
- Clean
- Fair
- Choppy
Conditions are 1 ft and choppy at 8pm on Tue 9/16
No Tide Data
Forecast Details
Basic
Detail
- Wednesday, Sep 17
SURF WIND SWELL 6am 1 ftchoppyS
8mph1.9ft4sS
12pm 0-1 ftfairSSW 4mph1.3ft4sS6pm 0-1 ftfairW 4mph0.8ft4sS - Best Board for Wednesday
- Thursday, Sep 18
SURF WIND SWELL 6am flatcleanNNE 11mph0.3ft3sS12pm flatcleanNE 14mph0.2ft3sSW6pm flatcleanNE 11mph0ft0sS - Friday, Sep 19
SURF WIND SWELL 6am flatcleanNE 7mph0ft0sS12pm flatcleanNE 8mph0ft0sS6pm flatcleanENE 4mph0ft0sS - Saturday, Sep 20
SURF WIND SWELL 6am flatcleanE 5mph0ft0sS12pm 1 ftchoppySSE 7mph1.4ft5sS6pm 1+ ftchoppyS 7mph2.5ft5sS - Best Surf Trip
This Week’s Swell? You Could Be On It.
- Sunday, Sep 21
SURF WIND SWELL 6am 1+ ftfairESE 4mph2.2ft5sS12pm 1+ ftfairSE 5mph2ft5sS6pm 1+ ftfairSE 7mph2.5ft5sS
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This forecast is for South-West facing beaches, and was updated Sep 17, 2025 @ 9:37am.
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