Kahului Harbor surf forecast from 21 Aug 2026:
- Most powerful swell: Sunday 23 Aug, 2PM (local time) - 5ft (1.6m), 8s period, E swell with 375 kJ wave energy.
Best Forecast Surf Conditions for Kahului Harbor this week:
The most powerful waves expected at Kahului Harbor in the next 16 days are 1.6m 8s and forecast to arrive on Sunday (Aug 23) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 11s period and expected on Friday (Aug 21) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Sun 23rd Aug) | 5ft (1.6m) 8s |
Table - best surf conditions forecast for Kahului Harbor 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