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Cloud 9
Siargao, Philippinesreef breakbothFaces E9.814°N, 126.167°E

Buoys near Cloud 9

The closest wave buoy is NDBC 52214 (Rumung, Yap, Micronesia), 1,316 km E of the break — too far to read Cloud 9 directly, so this is a forecast-only coast: the rating comes from the NOAA GFS-Wave model sampled at the spot, and the buoys below are context for the wider ocean, not a live read on the lineup.

Stations are ranked by how much they tell you about Cloud 9, not just by distance: a buoy sitting upstream — in the direction the swell comes from (about ENE 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.

Forecast-only coast

The NOAA stations nearest Cloud 9 are DART tsunami sensors — seafloor pressure gauges that measure water-column height, not sea state. They cannot tell you what the waves are doing; the closest wave-measuring buoy is 1,316 km away. PierMonkey rates Cloud 9 from the NOAA GFS-Wave model sampled at the spot itself, and the 16-day forecast on the Forecast tab is the source to plan from. How the rating works →

Bullseye = the break · click a marker to jump to its card · ring = 150 km
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Fewer than 6 stations within 150 km — showing the nearest 6 regardless of distance.

Upstream — in the swell window — these see a new swell before the break does

  • Rumung, Yap, Micronesia
    NDBC 52214 · Standard Met · 1,316 km E
    Awaiting live data
    Upstream · sees swell first
    A 15 s swell reaches this buoy ~29 h before the break20 s ~21 h · 17 s ~25 h · 14 s ~30 h · 11 s ~39 h
    Awaiting live data
    • Waves
    View buoy →Set alert
  • Ipan, Guam
    NDBC 52200 · Forecast · 2,066 km ENE
    Awaiting live data
    Upstream · sees swell first
    A 15 s swell reaches this buoy ~50 h before the break20 s ~36 h · 17 s ~42 h · 14 s ~51 h · 11 s ~65 h
    Awaiting live data
    • Waves
    • Spectral
    • Forecast
    • Tides
    View buoy →Set alert
  • Ritidian Point, Guam
    NDBC 52202 · Forecast · 2,075 km ENE
    Awaiting live data
    Upstream · sees swell first
    A 15 s swell reaches this buoy ~50 h before the break20 s ~36 h · 17 s ~43 h · 14 s ~52 h · 11 s ~66 h
    Awaiting live data
    • Waves
    • Spectral
    • Forecast
    • Tides
    View buoy →Set alert
  • Tanapag, Saipan, NMI
    NDBC 52211 · Forecast · 2,200 km ENE
    Awaiting live data
    Upstream · sees swell first
    A 15 s swell reaches this buoy ~54 h before the break20 s ~39 h · 17 s ~46 h · 14 s ~55 h · 11 s ~71 h
    Awaiting live data
    • Waves
    • Forecast
    • Tides
    View buoy →Set alert

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.