Rivermouth_Wailuku surf forecast from 22 Aug 2026:
- Most powerful swell: Sunday 23 Aug, 2PM (local time) - 5.5ft (1.7m), 9s period, E swell with 445 kJ wave energy.
Best Forecast Surf Conditions for Rivermouth_Wailuku this week:
The most powerful waves expected at Rivermouth_Wailuku in the next 16 days are 1.7m 9s and forecast to arrive on Sunday (Aug 23) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 10s period and expected on Saturday (Aug 22) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Sun 23rd Aug) | 5.5ft (1.7m) 9s |
Table - best surf conditions forecast for Rivermouth_Wailuku 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