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Surf Forecasts:

Ontonagon surfForecast / Lake Superior / USA

information circle48hr Weather and Surf, issued 12 am Tuesday 16 Dec 2025 EST
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
4.4° C
 (Which is 1.1°C warmer than normal for this time of year)
Time (EST) & DateWave HeightWave Period
Morning (16 Dec)--
Afternoon (16 Dec)0.5ft (0.1m)8s
Evening (16 Dec)--

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Tuesday
16
Wednesday
17
Thursday
18
10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM10 PM1 AM4 AM7 AM10 AM1 PM4 PM7 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.2
NNW
0.3
SW
1
SW
1.8
SW
0.1
NW
0.1
NW
0.1
NW
4
WSW
4
WSW
3.5
W
2.3
WNW
1.3
WNW
0.8
WNW
0.8
WSW
1.1
SW
1.2
SSW
1.6
S
2.1
S
2.4
SSW
0.1
NW
1.9
NW
2.5
N
3
N
3
N
Period(s) (?)344678899865445567786777
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1000233000454103260000002240636820954
Wind
(km/h)
10
WSW
15
SSW
20
SSW
25
SSW
30
SSW
30
SW
35
SW
40
WSW
45
WSW
45
WNW
35
NW
25
WNW
20
W
20
WSW
15
S
15
SSE
30
SSE
25
S
20
S
10
S
15
E
15
NNE
50
NE
45
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		cross-
off		offcross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
on		cross-
on		cross-
on		crosscross-
off		offoffoffoffoffoffcrosscross-
on		cross-
on		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
Tuesday
16
Wednesday
17
Thursday
18
Sunrise----8:36-------8:36-------8:37---
Sunset------5:08-------5:08-------5:08-
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
clear
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
cloud
light rain
mod rain
light rain
light snow
light snow
Rain (mm)
-----------------1-564--
Temp. °C-6-8-5-2267760-2-4-4-3-2-1045333-2-5
Feels °C (?)-11-14-12-9-6-2-2-3-5-11-12-12-11-10-7-7-8-3-10-1-2-15-17
  • 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

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View detailed surf forecast for Ontonagon at:
surf-forecast.com

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