Praia dos Castelhanos (Ilha Bela) surf forecast from 21 Aug 2026:
- Best quality surf: Wednesday 26 Aug, 6PM (local time) - 5ft (1.5m), 13s period, SSE swell with glassy winds.
- Most powerful swell: Monday 24 Aug, 9PM (local time) - 7.5ft (2.3m), 16s period, SSE swell with 2,481 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 9PM (local time) - 3.5ft (1.1m), 7s period with S swell.
Best Forecast Surf Conditions for Praia dos Castelhanos (Ilha Bela) this week:
The surf forecast for Praia dos Castelhanos (Ilha Bela) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 21) at 9PM. The primary swell is predicted to be 1.1m and 7s period with a secondary swell of 0.5m and 8s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Praia dos Castelhanos (Ilha Bela) in the next 16 days are 2.3m 16s and forecast to arrive on Monday (Aug 24) at 9PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 8s period and expected on Friday (Aug 21) at 9PM.
| Wave Type | Time (-03) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Fri 21st Aug) | 3.5ft (1.1m) 7s |
| Best Surf | 6PM (Wed 26th Aug) | 5ft (1.5m) 13s |
| Most Powerful | 9PM (Mon 24th Aug) | 7.5ft (2.3m) 16s |
Table - best surf conditions forecast for Praia dos Castelhanos (Ilha Bela) 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