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Waikiki
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Hawaii, USAreef breakbothFaces SSW21.275°N, 157.827°W

Buoys near Waikiki

7 active NOAA stations report within 150 km of Waikiki. The closest wave buoy is NDBC 51211 (Pearl Harbor Entrance, HI), 14 km W of the break.

Stations are ranked by how much they tell you about Waikiki, not just by distance: a buoy sitting upstream — in the direction the swell comes from (about S here) — registers a new swell before it reaches the break, so it earns a lead time; a buoy behind an island is marked as shadowed; stale reports rank below fresh ones. Readings are the latest public NOAA observations and refresh hourly.

Bullseye = the break · click a marker to jump to its card · ring = 150 km
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Reference — the nearest wave buoy — compare it against the forecast

Also nearby

Lead times use deep-water group velocity (Cg = gT/4π ≈ 2.8 km/h per second of period) projected along the swell direction, at this break's typical period; a buoy under 40 km away reads the same swell the break is receiving. Upstream = within 30° of the swell direction; shadowing is curated per break. Observations: NOAA National Data Buoy Center. Ratings: NOAA GFS-Wave, PierMonkey Rating v3.