WorldTides
PaidLiveLast verified 29 Sept 2026
High and low tide times, tide heights and datums for any coastal coordinate, from harmonic station data.
Example request
curl -s 'https://www.worldtides.info/api/v3?extremes&date=2026-09-29&days=3&lat=33.768321&lon=-118.195617&key=$API_KEY'
Free tier, in plain English
New accounts get 100 credits to test with, then it is prepaid credits or a monthly plan. A seven-day high/low forecast for one spot costs one credit.
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