Playa de Rio Sieira / As Furnas surf forecast from 26 Aug 2026:
- Best quality surf: Thursday 27 Aug, 11PM (local time) - 3.5ft (1.0m), 8s period, W swell with cross-offshore winds.
- Most powerful swell: Friday 28 Aug, 11AM (local time) - 8ft (2.5m), 11s period, W swell with 1,432 kJ wave energy.
- Next surfable swell (1★+): Thursday 27 Aug, 2AM (local time) - 4ft (1.2m), 6s period with SW swell.
Best Forecast Surf Conditions for Playa de Rio Sieira / As Furnas this week:
The surf forecast for Playa de Rio Sieira / As Furnas over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 27) at 2AM. The primary swell is predicted to be 1.2m and 6s period with a secondary swell of 0.6m and 8s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Playa de Rio Sieira / As Furnas in the next 16 days are 2.5m 11s and forecast to arrive on Friday (Aug 28) at 11AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Friday (Aug 28) at 5AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Thu 27th Aug) | 4ft (1.2m) 6s |
| Best Surf | 11PM (Thu 27th Aug) | 3.5ft (1.0m) 8s |
| Most Powerful | 11AM (Fri 28th Aug) | 8ft (2.5m) 11s |
Table - best surf conditions forecast for Playa de Rio Sieira / As Furnas 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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