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Surf Forecasts:

Ontonagon surfForecast / Lake Superior / USA

information circle48hr Weather and Surf, issued 1 pm Tuesday 16 Sep 2025 EDT
Forecast update in hr  min  s Forecast update imminent
Ontonagon surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Ontonagon sea temperature is
16.7° C
 (Which is 3.2°C warmer than normal for this time of year)
Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 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 (?)
0.6
S
0.5
S
0.3
SSW
0.2
S
0.2
SSW
0.5
SW
0.6
SW
0.5
SW
0.4
SW
0.3
SW
0.1
SW
———
0.4
NE
0.6
NE
0.7
NE
0.7
NE
0.6
ENE
0.4
ENE
0.4
ENE
0.4
ENE
0.6
ENE
0.7
ENE
Period(s) (?)44332344444---3444443344
Wave
Graph
(?)Metric surfscale
Energy kJ (?)00000000000000381618146541120
Wind
(km/h)
15
S
15
SSW
5
SW
15
SSW
15
SSW
15
S
10
SW
10
WSW
15
W
10
WNW
5
W
0
E
15
ENE
10
ENE
15
ENE
15
ENE
20
ENE
25
NE
25
NE
20
ENE
15
E
15
ESE
15
ESE
10
ESE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffcross-
off		cross-
off		offoffcross-
off		cross-
off		crosscross-
on		glassglasscross-
on		crosscross-
on		cross-
on		cross-
on		cross-
on		cross-
on		crosscrosscross-
off		cross-
off		cross-
off
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
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Sunrise-------7:35-------7:37-------7:39
Sunset---8:07-------8:05-------8:02----
clear
part cloud
clear
part cloud
clear
thunderstorm
thunderstorm
clear
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
Rain (mm)
-----11-----------------
Temp. °C222727252221201919202019171716151718171613131312
Feels °C (?)212829262221212019202120161715131415131310111110
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for Lake Superior

  1. weather stationWind Update Offshore wind has become cross-off at Ontonagon (light winds from the SW at BUOY-OTNM4 3 km from Ontonagon). not gfswave

    1 hour 29 minutes ago Ontonagon
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1 h 29 min ago

13 km/h
SW
Cross-Off
Please reload the page to see if there are any updates.

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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Ontonagon 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 Ontonagon at:
surf-forecast.com

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