The surf forecast is flat right now for Grand Marais, MN
- WEATHER FORECASTNearby Wind Station KGNA - Bay of Grand Marais, MN30° N @ 3mph
- BUOY FORECASTNo active nearby Buoys. Using current forecast data.S
0 @ 0s
- WATER TEMPWater temperature from nearby buoy station GDMM542° 5/4+, Boots/Gloves(5+)
Forecast
Surf
Swell
- 8ft
- 6ft
- 4ft
- 2ft
THU 21
FRI 22
SAT 23
SUN 24
MON 25
3am
- Clean
- Fair
- Choppy
Conditions are flat and clean at 3am on Thu 5/21

No Tide Data
Forecast Details
Basic
Detail
- Thursday, May 21
SURF WIND SWELL 6am flatfairNNE4mph0ft0sS12pm flatfairSE5mph0.2ft2sSE6pm flatchoppyE8mph0.3ft2sSE - Friday, May 22
SURF WIND SWELL 6am 0-1 ftchoppyNE7mph0.8ft3sE12pm 0-1 ftchoppyE12mph1.1ft3sE6pm 1 ftchoppyENE16mph2.1ft4sENE - Saturday, May 23
SURF WIND SWELL 6am 1 ftchoppyENE11mph1.6ft4sE12pm 1 ftchoppyENE9mph1.6ft5sE6pm 0-1 ftfairENE6mph1.2ft5sE - Sunday, May 24
SURF WIND SWELL 6am 0-1 ftcleanNE2mph0.8ft5sE12pm 0-1 ftfairS6mph0.8ft5sE6pm 0-1 ftcleanSSE3mph0.8ft5sE - Monday, May 25
SURF WIND SWELL 6am flatcleanWSW1mph0.4ft4sE12pm flatfairSSW8mph0.2ft4sE6pm flatcleanSSW4mph0ft0sS
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This forecast is for beaches with direct offshore winds from West-North-West to West, and was updated May 21, 2026 @ 2:39am.
Read more about the Surf Captain forecasts.

