Cable Bay (Porth Trecastell) surf forecast from 22 Aug 2026:
- Best quality surf: Friday 28 Aug, 4AM (local time) - 2.5ft (0.8m), 6s period, SW swell with cross-offshore winds.
- Most powerful swell: Thursday 27 Aug, 1PM (local time) - 6ft (1.8m), 6s period, NW swell with 224 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 4AM (local time) - 2.5ft (0.8m), 6s period with SW swell.
Best Forecast Surf Conditions for Cable Bay (Porth Trecastell) this week:
The surf forecast for Cable Bay (Porth Trecastell) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 28) at 4AM. The primary swell is predicted to be 0.8m and 6s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Cable Bay (Porth Trecastell) in the next 16 days are 1.8m 6s and forecast to arrive on Thursday (Aug 27) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 5s period and expected on Thursday (Aug 27) at 10AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4AM (Fri 28th Aug) | 2.5ft (0.8m) 6s |
| Best Surf | 4AM (Fri 28th Aug) | 2.5ft (0.8m) 6s |
| Most Powerful | 1PM (Thu 27th Aug) | 6ft (1.8m) 6s |
Table - best surf conditions forecast for Cable Bay (Porth Trecastell) 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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