Lakey Peak Swell Window
Sumbawa, Indonesia · part of the Lakey Peak spot guide
- Swell window (from)
- 160°–250° (SSE–WSW)
- Best direction
- ~220° (SW)
- Period sweet spot
- 14–18 s
- Open-ocean height (Hs)
- 3–11 ft
- Resulting faces
- 3–12 ft
Open-ocean vs. the face: the heights on buoys and forecast models are significant wave height (Hs) in deep water. What you ride is the breaking face, which depends on period, direction and this break's bathymetry — that's why the two rows above differ. PierMonkey's spot ratings already do this conversion for you.
The reef faces about south-southwest, wide open to Southern Ocean groundswell, so it draws from the south through southwest with the ideal angle right around southwest. It wants long-period groundswell — roughly 14-to-18 seconds, ideally around 16 — and short-period windswell shows up weak and mushy.
Reef amplification means the breaking face typically runs larger than the open-ocean height on a groundswell; the bands here are reasoned brackets, not surveyed data. Read the alert threshold as open-ocean height, not the face.