Onemana surf forecast from 22 Aug 2026:
- Best quality surf: Sunday 23 Aug, 9PM (local time) - 3ft (0.9m), 6s period, NNW swell with offshore winds.
- Most powerful swell: Saturday 29 Aug, 6PM (local time) - 7ft (2.1m), 7s period, NNW swell with 408 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 9PM (local time) - 3ft (0.9m), 6s period with NNW swell.
Best Forecast Surf Conditions for Onemana this week:
The surf forecast for Onemana over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 23) at 9PM. The primary swell is predicted to be 0.9m and 6s period with a secondary swell of 0.1m and 12s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Onemana in the next 16 days are 2.1m 7s and forecast to arrive on Saturday (Aug 29) at 6PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 6s period and expected on Saturday (Aug 29) at 9AM.
| Wave Type | Time (NZST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Sun 23rd Aug) | 3ft (0.9m) 6s |
| Best Surf | 9PM (Sun 23rd Aug) | 3ft (0.9m) 6s |
| Most Powerful | 6PM (Sat 29th Aug) | 7ft (2.1m) 7s |
Table - best surf conditions forecast for Onemana 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