Open-Meteo Marine Weather API
FreemiumLiveLast verified 29 Sept 2026
Hourly wave height, swell, sea temperature, ocean currents and tide-inclusive sea level forecasts, no key.
Example request
curl -s 'https://marine-api.open-meteo.com/v1/marine?latitude=54.544587&longitude=10.227487&hourly=wave_height'
Free tier, in plain English
No key needed for non-commercial projects, up to 10,000 calls a day shared with the other Open-Meteo APIs. Commercial apps need a paid plan.
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