The surf forecast is flat right now for Grand Marais, MN
- WEATHER - LIVE
Nearby Wind Station KGNA - Bay of Grand Marais, MN71° W @ 7mph - BUOY FORECAST No active nearby Buoys. Using current forecast data.E
0.2ft @ 4s - WATER TEMP Water temperature from nearby buoy station GDMM554° 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
1am
- Clean
- Fair
- Choppy
Conditions are flat and clean at 1am on Wed 9/17
No Tide Data
Forecast Details
Basic
Detail
- Wednesday, Sep 17
SURF WIND SWELL 6am flatcleanNW
6mph0.5ft3sS12pm flatcleanWNW 2mph0.2ft3sS6pm flatcleanN 2mph0.2ft4sE - Best Board for Wednesday
- Thursday, Sep 18
SURF WIND SWELL 6am 0-1 ftchoppyNE 10mph0.9ft4sE12pm 1 ftchoppyENE 12mph2ft4sE6pm 1 ftchoppyENE 10mph2.1ft5sE - Friday, Sep 19
SURF WIND SWELL 6am 1 ftchoppyENE 13mph1.9ft4sE12pm 1+ ftchoppyENE 16mph2.9ft4sE6pm 2 ftchoppyENE 16mph3.5ft5sE - Saturday, Sep 20
SURF WIND SWELL 6am 1 ftchoppyE 11mph2.1ft5sE12pm 1 ftfairE 8mph2ft4sE6pm 1+ ftchoppyENE 10mph2.1ft5sE - Best Surf Trip
Surf Witch’s Rock. Stay in Tamarindo.
- Sunday, Sep 21
SURF WIND SWELL 6am 1 ftfairESE 5mph1.8ft6sE12pm 1 ftcleanWSW 2mph1.3ft5sE6pm 0-1 ftcleanW 3mph1.1ft5sE
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This forecast is for beaches with direct offshore winds from West-North-West to West, and was updated Sep 17, 2025 @ 2:40pm.
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