Teahupo'o Swell Window

Tahiti, French Polynesia · part of the Teahupo'o spot guide

Swell window (from): 160°–250° (SSE–WSW)
Best direction: ~210° (SSW)
Period sweet spot: 15–20 s
Open-ocean height (Hs): 8–16 ft
Resulting faces: 10–30 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 and the Hava’e pass want swell wrapping from the south to southwest — a technically broad window of roughly 160° to 250°, but the ledging, hollow "true Teahupo’o" form needs mid-to-long-period SW–SSW energy, best around 200–225°. Period matters as much as size: the biggest, cleanest slabs ride the longest, and the 2011 Code Red peaked near 19 seconds.

The focusing story is the whole point: with no shelf and a near one-to-one shoaling, modest open-ocean heights become a much larger, far thicker breaking face. And it does not scale linearly — below a threshold it is a perfect hollow wave, but cross a critical combination of size, period and clean SW angle and the reef "switches on," stepping up disproportionately into a mutant slab. The gap between all-time and unrideable is a small bump.

The storm corridor

Typical swell corridor to Teahupo'o: Southern Ocean lows south of New Zealand and the far South Pacific, aiming long-period S–SW swell at Tahiti — Typical swell corridor (schematic straight line): Southern Ocean lows south of New Zealand and the far South Pacific, aiming long-period S–SW swell at Tahiti.