PierMonkey
Sign inRegister
← Back to Map
Weligama
Southern Province, Sri Lankabeach breakbothFaces S5.973°N, 80.429°E

Buoys near Weligama

The closest wave buoy is NDBC 23010, 1,111 km S of the break — too far to read Weligama 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 Weligama, not just by distance: a buoy sitting upstream — in the direction the swell comes from (about SSW 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 Weligama 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 1,111 km away. PierMonkey rates Weligama 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
Within
Sort
Type

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

  • 4.000°S 81.000°E
    NDBC 23010 · Standard Met · 1,111 km S
    Awaiting live data
    Upstream · sees swell first
    A 13 s swell reaches this buoy ~28 h before the break20 s ~18 h · 17 s ~21 h · 14 s ~26 h · 11 s ~33 h
    Awaiting live data
    • Waves
    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.