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Surf Forecasts

Ontonagon surfForecast / Lake Superior / USA

information circle12 Day Weather and Surf, issued 6 am Thursday 12 Dec 2024 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
6.1° C
 (Which is 2.6°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Ontonagon this week:

The most powerful waves expected at Ontonagon in the next 12 days are 1.4m 5s and forecast to arrive on Tuesday (Dec 17) at 10AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Monday (Dec 16) at 10PM.

Wave TypeTime (EST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful10AM (Tue 17th Dec)4.5ft (1.4m) 5s

Table - best surf conditions forecast for Ontonagon over the next 12 days.

Hourly12 Days
Lake Superior Surf
Print Surf Table
Updates in  hr  min  s Forecast update imminent 
Thursday
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
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
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.4
NW
1.2
WNW
0.9
WNW
0.3
NW
0.4
SW
0.9
S
1
S
0.8
SSE
0.6
SSE
0.1
E
0.2
E
0.1
E
0.1
E
1.1
SSW
1.2
W
1.4
NW
1.3
NW
0.8
NNW
——————————————————
Period(s) (?)555335544776555554------------------
Wave
Graph
(?)Metric surfscale
Energy (?)111693720000014100741118324000000000000000000
Wind
(km/h)
35
WNW
30
WNW
20
W
15
SW
10
SSE
20
SSE
25
SSE
20
SE
20
SE
5
SE
10
SE
10
SSE
10
SSE
10
E
20
N
30
N
20
N
15
ENE
20
ENE
25
ENE
25
ENE
30
NE
35
NE
30
NE
25
NNE
20
NNE
0
SSE
15
SSW
25
SSW
25
W
40
NNW
35
NNW
25
NNW
20
NNW
15
NW
20
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on		crosscrosscross-
off		cross-
off		offcross-
off		cross-
off		cross-
off		cross-
off		cross-
off		offoffcrossonononcross-
on		crosscross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		cross-
on		glassoffoffcrosscross-
on		cross-
on		cross-
on		oncross-
on		cross-
off
High Tide
/ height (m)
n/a
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Low Tide
/ height (m)
n/a
n/a
n/a
n/a
n/a
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Thursday
12
Friday
13
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
Sunrise8:33--8:33--8:34--8:36--8:36--8:37--8:37--8:37--8:38--8:38--8:40--8:40--
Sunset-5:07--5:07--5:07--5:08--5:08--5:08--5:09--5:09--5:09--5:10--5:10--5:12-
light snowlight snowcloudpart cloudclearpart cloudcloudcloudcloudcloudcloudcloudcloudmod rainlight raincloudcloudcloudcloudcloudcloudcloudcloudcloudcloudcloudcloudpart cloudlight snowlight snowcloudcloudcloudcloudcloudlight snow
Rain (mm)
-------------72---------------------
Temp. °C-11-9-8-9-7-60133334440-10-2-1-1-2-3-4-5-5-7-6-5-1-5-7-8-8-7-7
Feels °C (?)-21-18-16-15-12-13-6-5-310-120-4-8-7-6-9-8-8-11-12-14-13-12-12-13-13-9-16-17-17-15-13-14

Short Range Forecast: A dusting of new snow. Icy conditions (max 3°C on Sat night, min -12°C on Thu morning). Winds decreasing (fresh winds from the WNW on Thu morning, light winds from the SSE by Sat night).

Days 3-6 Weather Summary Light rain (total 9mm), mostly falling on Mon afternoon. Icy conditions (max 4°C on Mon morning, min -2°C on Tue night). Winds increasing (calm on Sun morning, fresh winds from the NNW by Mon night).

Days 6-9 Weather Summary Mostly dry. Temperatures will be below freezing (max -1°C on Wed afternoon, min -11°C on Fri night). Winds decreasing (fresh winds from the NE on Thu afternoon, calm by Fri night).

Long Range Forecast: A light covering of new snow mostly falling on Sat night. Temperatures will be below freezing (max -1°C on Sat night, min -9°C on Sat morning). Winds decreasing (strong winds from the NNW on Sat night, light winds from the SW by Mon night).

  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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View detailed surf forecast for Ontonagon at:
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Information about the Ontonagon Surf forecast

The above surf forecast table for Ontonagon provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Ontonagon can be found by selecting the local surf guide option on the grey menu. Our Ontonagon surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Ontonagon) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Ontonagon may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Ontonagon is 151 km (94 miles) from the city of Marquette. If you plan a vacation in Lake Superior, look for hotels and other accommodation in Marquette. Marquette has rooms for a wide range of budgets as well as car hire and transport links.

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