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Ontonagon surfForecast / Lake Superior / USA

information circle48hr Weather and Surf, issued 7 pm Friday 18 Jul 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
17.4° C
 (Which is 6.8°C warmer than normal for this time of year)
Hourly12 Days
Lake Superior Surf
Print Surf Table
Updates in  hr  min  s Forecast update imminent 
Friday
18
Saturday
19
Sunday
20
Monday
21
5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM5 PM8 PM11 PM2 AM5 AM8 AM11 AM2 PM
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 (?)
0.3
WSW
0.3
WSW
———————
0.2
WSW
0.3
WSW
0.2
W
——————————
0.2
ESE
—
Period(s) (?)33-------333----------2-
Wave
Graph
(?)Metric surfscale
Energy (?)000000000001000000000000
Wind
(km/h)
10
NNW
5
ENE
10
ESE
10
ENE
10
NE
15
NE
15
NNE
10
NNE
5
NNE
10
NNW
5
SW
10
SSW
10
SW
5
W
5
WNW
10
NNW
0
WNW
5
W
10
E
10
S
10
S
10
S
5
E
10
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncrosscross-
off		crosscross-
on		cross-
on		cross-
on		ononcross-
on		glassoffcross-
off		cross-
off		cross-
on		cross-
on		glassglasscrossoffoffoffglasscross-
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
Friday
18
Saturday
19
Sunday
20
Monday
21
Sunrise-----6:20-------6:22-------6:22--
Sunset-9:45-------9:44-------9:44------
cloudcloudcloudcloudlight rainrain showerscloudpart cloudpart cloudpart cloudclearclearclearclearclearclearpart cloudclearclearpart cloudcloudclearclearclear
Rain (mm)
----36------------------
Temp. °C171415151514141516161313131416181921171515152021
Feels °C (?)161314141513131416151212111315171921151313142019
  • 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 Continuing clean conditions at Ontonagon (calm at BUOY-45216 4 km from Ontonagon). not gfswave

    1 hour 19 minutes ago Ontonagon
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<
>
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1 h 19 min ago

4 km/h
ENE
Clean
Please reload the page to see if there are any updates.

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 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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