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Ontonagon Surf Forecast
/ Lake Superior (10 breaks) / Michigan (11 breaks) /
Surf Forecasts:
Ontonagon surfForecast / Lake Superior / USA
16 Day Weather and Surf, issued 7 am Saturday 30 May 2026 EDTForecast 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
6.6° C
(Which is 3.2°C warmer than normal for this time of year)Ontonagon surf forecast from 30 May 2026:
- Most powerful swell: Saturday 30 May, 5PM (local time) - 3.5ft (1.1m), 6s period, ENE swell with 77 kJ wave energy.
Best Forecast Surf Conditions for Ontonagon this week:
The most powerful waves expected at Ontonagon in the next 16 days are 1.1m 6s and forecast to arrive on Saturday (May 30) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Thursday (Jun 04) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5PM (Sat 30th May) | 3.5ft (1.1m) 6s |
Table - best surf conditions forecast for Ontonagon over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 21°C on Sat afternoon, min 8°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Thu night. Warm (max 22°C on Wed afternoon, min 13°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 30 | Sunday 31 | Monday 1 | Tuesday 2 | Wednesday 3 | Thursday 4 | Friday 5 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
E 6 | ENE 6 | E 5 | — | — | — | NE 3 | ENE 4 | ENE 3 | — | ENE 4 | — | — | — | S 4 | SSW 4 | SW 4 | SW 4 | — | — | — | |
92 | 77 | 10 | 0 | 0 | 0 | 2 | 5 | 2 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
Wind (km/h) | |||||||||||||||||||||
cross-off | cross | off | glassy | on | off | cross-on | on | cross-off | glassy | cross-on | cross-off | cross-off | glassy | off | off | cross-off | off | off | cross-on | cross-on | |
High Tide | |||||||||||||||||||||
Low Tide | |||||||||||||||||||||
 | |  | | |  |  | | | | | | | | | |  |  |  |  |  | |
 | 6:07 | — | — | 6:07 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:03 | — | — |
 | — | — | 9:40 | — | — | 9:42 | — | — | 9:43 | — | — | 9:44 | — | — | 9:45 | — | — | 9:45 | — | — | 9:46 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 8 | 7 | 1 | 1 | |
Temp °C | 17 | 21 | 18 | 14 | 16 | 16 | 15 | 14 | 13 | 21 | 19 | 17 | 21 | 22 | 22 | 21 | 21 | 17 | 18 | 19 | 15 |
13 | 16 | 14 | 12 | 14 | 15 | 13 | 11 | 11 | 20 | 17 | 16 | 18 | 22 | 21 | 18 | 18 | 18 | 19 | 21 | 14 | |
Swell 1 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
 kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 6 | ENE 6 | E 5 | — | — | — | NE 3 | ENE 4 | ENE 3 | — | ENE 4 | — | — | — | S 4 | SSW 4 | SW 4 | SW 4 | — | — | — |
| kJ | 92 | 77 | 10 | — | — | — | 2 | 5 | 2 | — | 1 | — | — | — | 6 | 26 | 22 | 18 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 2019 | 1423 | 1421 | 1518 | 1423 | 1438 | 1545 | 1518 | 1433 | 1565 | 1431 | 1622 | 1950 | 1715 | 1700 | 1875 | 1436 | 1423 | 1521 | 1423 |
Best forecast wave conditions in Lake Superior | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.
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 16 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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