Snow-ForecastSnow-ForecastMountain-ForecastMountain-ForecastTide-ForecastTide-ForecastWeather-ForecastWeather-Forecast
Search by country, region, or break
Search by country, region, or break

Quick Links

Surf Forecasts:

Grand Marias surfForecast / Lake Superior / USA

information circle48hr Weather and Surf, issued 6 am Saturday 13 Dec 2025 EST
Forecast update in hr  min  s Forecast update imminent
Grand Marias surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Grand Marias sea temperature is
4.7° C
 (Which is slightly warmer than usual)

How big are the waves at Grand Marias today?

The current surf forecast for Grand Marias at 11AM is: 3.0m 9s primary swell from a Northwest direction and 0.1m 9s secondary swell from a Northeast direction (forecast issued at 06:00am December 13). The wind direction is predicted to be cross-onshore.

Time (EST) & DateWave HeightWave Period
Morning (13 Dec)10ft (3.0m)9s
Afternoon (13 Dec)10ft (3.0m)8s
Evening (13 Dec)11ft (3.5m)9s

Table - waves today at Grand Marias. (Swell directed towards the surf break)

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Saturday
13
Sunday
14
Monday
15
Tue
16
4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
3.5
WNW
3
NW
3
NW
3
NW
3
NW
3.5
NW
3.5
NNW
3.5
NNW
3
NNW
2.5
NNW
2.3
NNW
1.8
NNW
1.4
NW
1.1
NW
0.5
NW
0.3
NW
0.1
NW
2.5
SW
2.5
SW
2.3
W
2.3
WNW
2
NW
1.5
NW
1.1
NW
Period(s) (?)999888988877666558878776
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1682156314081169110915451944146811737685582951628615410054760438719280
Wind
(km/h)
40
WNW
40
WNW
40
WNW
35
WNW
35
NW
40
NW
45
NW
40
NNW
40
NNW
40
NNW
35
NNW
30
NNW
25
NW
15
WNW
20
SW
25
SSW
35
SSW
35
SW
20
WSW
25
W
30
NW
30
NW
20
NW
10
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		onononononcross-
on		crosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crosscross-
on		cross-
on		cross-
on		cross-
on
High Tide
/ height (m)
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Low Tide
/ height (m)
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Saturday
13
Sunday
14
Monday
15
Tue
16
Sunrise--8:19-------8:19-------8:21-----
Sunset----4:55-------4:55-------4:55---
light snow
light snow
light snow
light snow
light snow
light snow
light snow
light snow
light snow
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light snow
light snow
light snow
cloud
cloud
cloud
cloud
cloud
Rain (mm)
------------------------
Temp. °C-7-9-9-9-9-9-7-6-5-4-3-2-2-4-5-6-8-8-7-5-2-2-2-4
Feels °C (?)-18-20-20-19-19-20-19-17-16-15-13-10-10-10-12-14-18-18-14-13-11-10-9-9
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Latest Updates

Read more

Read more

Discover more articles and updates in the Greenroom.

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Grand Marias surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Grand Marias at:
surf-forecast.com

Nearest locationNearest
Nearest locationNearest
Nearest locationNearest