Latest marine buoy observation (NOAA NDBC) API

Latest realtime observation from a NOAA NDBC marine buoy, parsed from the fixed-width feed and normalized with derived Douglas sea-state and wind descriptor. Answers 'wave height and water temp at buoy 44025?', 'how rough is the sea offshore right now?'.

Price$0.01per request

MethodPOST

Route/v1/climate/ndbc-buoy

StatusLive

MIME typeapplication/json

Rate limit60/minute

Cache900s public

climatewatermarinebuoyndbcnoaawavessea-stateoceansst

API URLhttps://x402.hexl.dev/v1/climate/ndbc-buoy

Integration docs

Example request

{
  "station": "44025"
}

Example response

{
  "station": "44025",
  "observation": {
    "observedAt": "2026-06-04T23:10:00Z",
    "windDirectionDegrees": null,
    "windSpeedMs": null,
    "windDescription": null,
    "gustMs": null,
    "waveHeightM": 0.9,
    "seaState": "smooth to slight",
    "dominantWavePeriodSec": 8,
    "averageWavePeriodSec": 4.2,
    "meanWaveDirectionDegrees": 130,
    "pressureHpa": null,
    "airTempC": null,
    "waterTempC": 15.5,
    "dewPointC": null
  }
}

Input schema

{
  "type": "object",
  "properties": {
    "station": {
      "type": "string",
      "description": "NDBC station id, e.g. '44025' or '46042'."
    }
  },
  "required": [
    "station"
  ],
  "additionalProperties": false
}

Output schema

{
  "type": "object",
  "additionalProperties": true
}