Portsea Back Beach surf forecast from 7 Jul 2026:
- Best quality surf: Wednesday 8 Jul, 4PM (local time) - 7ft (2.2m), 18s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 15 Jul, 1AM (local time) - 11ft (3.5m), 15s period, WSW swell with 6,013 kJ wave energy.
- Next surfable swell (1★+): Wednesday 8 Jul, 7AM (local time) - 5ft (1.5m), 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 Wednesday (Jul 08) at 7AM. The primary swell is predicted to be 1.1m and 20s period with a secondary swell of 1.5m and 15s. 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 Wednesday (Jul 15) at 1AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 5s period and expected on Saturday (Jul 11) at 1PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7AM (Wed 8th Jul) | 5ft (1.5m) 15s |
| Best Surf | 4PM (Wed 8th Jul) | 7ft (2.2m) 18s |
| Most Powerful | 1AM (Wed 15th Jul) | 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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