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Marine Ocean Wave Height, Swell Period & Sea Surface Forecast

Fetches ocean wave height (m), wave direction, wave period (s), and wind-wave swell metrics for maritime shipping and coastal locations.

Call it (no API key)

GET https://api.agentdatahub.de/api/v1/call/geo-marine-wave-forecast?lat=54.0&lon=7.5&compact=1

Full metadata: without compact=1 · Markdown: format=llm · Only some fields: add &fields=a,b.c · MCP: tool call_api with {"apiId":"geo-marine-wave-forecast"}

Parameters

`lat`	Ocean Latitude (default: 54.0 North Sea)
`lon`	Ocean Longitude (default: 7.5)

Example response (live, compact)

{
  "apiId": "geo-marine-wave-forecast",
  "data_freshness": "cached",
  "data": {
    "latitude": 54,
    "longitude": 7.5,
    "marine_conditions": {
      "time": "2026-10-27T21:30",
      "interval": 900,
      "wave_height": 1.16,
      "wave_direction": 250,
      "wave_period": 4.95,
      "swell_wave_height": 0.92
    }
  },
  "source": "Open-Meteo Marine Weather API",
  "license": "Open-Meteo CC-BY 4.0 Open Data"
}

Recorded history available: /api/v1/history/geo-marine-wave-forecast?lat=54.0&lon=7.5

Source & license

Source	Open-Meteo Marine Weather API
License	Open-Meteo CC-BY 4.0 Open Data
Source URL	https://marine-api.open-meteo.com/v1/marine?latitude=54.0&longitude=7.5&current=wave_height,wave_direction,wave_period
Terms	https://open-meteo.com/en/terms
Category	Geodata, Weather & Environment › 3. Air Quality, Earthquakes & Environment