Ontonagon surf forecast from 27 Aug 2026:
- Most powerful swell: Thursday 27 Aug, 2AM (local time) - 2ft (0.6m), 4s period, NW swell with 12 kJ wave energy.
Best Forecast Surf Conditions for Ontonagon this week:
The most powerful waves expected at Ontonagon in the next 16 days are 0.6m 4s and forecast to arrive on Thursday (Aug 27) at 2AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Monday (Aug 31) at 5PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Thu 27th Aug) | 2ft (0.6m) 4s |
Table - best surf conditions forecast for Ontonagon over the next 16 days.
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Nearest