Half Moon Bay surf forecast from 22 Aug 2026:
- Best quality surf: Friday 21 Aug, 11PM (local time) - 3ft (0.9m), 8s period, WNW swell with cross-offshore winds.
- Most powerful swell: Tuesday 25 Aug, 11PM (local time) - 2.5ft (0.7m), 16s period, SW swell with 274 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 8PM (local time) - 3ft (0.9m), 8s period with WNW swell.
Best Forecast Surf Conditions for Half Moon Bay this week:
The surf forecast for Half Moon Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 21) at 8PM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.5m and 14s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Half Moon Bay in the next 16 days are 0.7m 16s and forecast to arrive on Tuesday (Aug 25) at 11PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Thursday (Aug 27) at 5AM.
| Wave Type | Time (PDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Fri 21st Aug) | 3ft (0.9m) 8s |
| Best Surf | 11PM (Fri 21st Aug) | 3ft (0.9m) 8s |
| Most Powerful | 11PM (Tue 25th Aug) | 2.5ft (0.7m) 16s |
Table - best surf conditions forecast for Half Moon Bay 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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