San Juan surf forecast from 28 Aug 2026:
- Best quality surf: Thursday 3 Sep, 2PM (local time) - 6ft (1.9m), 10s period, W swell with cross-offshore winds.
- Most powerful swell: Wednesday 2 Sep, 8PM (local time) - 8ft (2.4m), 10s period, W swell with 1,138 kJ wave energy.
- Next surfable swell (1★+): Thursday 3 Sep, 2PM (local time) - 6ft (1.9m), 10s period with W swell.
Best Forecast Surf Conditions for San Juan this week:
The surf forecast for San Juan over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Sep 03) at 2PM. The primary swell is predicted to be 1.9m and 10s period with a secondary swell of 0.1m and 7s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at San Juan in the next 16 days are 2.4m 10s and forecast to arrive on Wednesday (Sep 02) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 10s period and expected on Thursday (Sep 03) at 2AM.
| Wave Type | Time (PST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Thu 3rd Sep) | 6ft (1.9m) 10s |
| Best Surf | 2PM (Thu 3rd Sep) | 6ft (1.9m) 10s |
| Most Powerful | 8PM (Wed 2nd Sep) | 8ft (2.4m) 10s |
Table - best surf conditions forecast for San Juan 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