Portsea Back Beach surf forecast from 6 Oct 2026:
- Best quality surf: Sunday 11 Oct, 11PM (local time) - 10ft (3.0m), 19s period, SW swell with offshore winds.
- Most powerful swell: Tuesday 6 Oct, 8PM (local time) - 11ft (3.5m), 15s period, SW swell with 5,438 kJ wave energy.
- Next surfable swell (1★+): Thursday 8 Oct, 5AM (local time) - 7ft (2.2m), 15s period with SW swell.
Best Forecast Surf Conditions for Portsea Back Beach this week:
The surf forecast for Portsea Back Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Oct 08) at 5AM. The primary swell is predicted to be 2.2m and 15s period with a secondary swell of 0.4m and 16s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Portsea Back Beach in the next 16 days are 3.5m 15s and forecast to arrive on Tuesday (Oct 06) at 8PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Wednesday (Oct 07) at 11PM.
| Wave Type | Time (AEDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Thu 8th Oct) | 7ft (2.2m) 15s |
| Best Surf | 11PM (Sun 11th Oct) | 10ft (3.0m) 19s |
| Most Powerful | 8PM (Tue 6th Oct) | 11ft (3.5m) 15s |
Table - best surf conditions forecast for Portsea Back Beach 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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