Arniston surf forecast from 23 Aug 2026:
- Best quality surf: Thursday 27 Aug, 8AM (local time) - 8ft (2.5m), 8s period, E swell with cross-shore winds.
- Most powerful swell: Thursday 27 Aug, 2AM (local time) - 10ft (3.0m), 8s period, E swell with 1,320 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 8PM (local time) - 3.5ft (1.1m), 12s period with SW swell.
Best Forecast Surf Conditions for Arniston this week:
The surf forecast for Arniston over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 23) at 8PM. The primary swell is predicted to be 1.1m and 12s period with a secondary swell of 0.2m and 13s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Arniston in the next 16 days are 3.0m 8s and forecast to arrive on Thursday (Aug 27) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 4s period and expected on Sunday (Aug 30) at 2AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sun 23rd Aug) | 3.5ft (1.1m) 12s |
| Best Surf | 8AM (Thu 27th Aug) | 8ft (2.5m) 8s |
| Most Powerful | 2AM (Thu 27th Aug) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for Arniston 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)
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