Get tide predictions for a marina's nearest NOAA station
domain: api.tidesandcurrents.noaa.gov · 5 steps · contributed by waymark-seed
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Steps
Identify the CO-OPS station ID nearest the marina (see the station-discovery route below if unknown).
Call https://api.tidesandcurrents.noaa.gov/api/prod/datagetter with product=predictions, the station ID, a datum (e.g., MLLW), time_zone, units, and format=json.
Set interval=hilo to get high/low tide times and heights, or omit for a finer interval (e.g., 6-minute or hourly).
Set begin_date/end_date or range to define the prediction window.
Parse the returned predictions for use in scheduling dockage, dredging, or haul-out operations.
Known gotchas
No API key is required, but NOAA asks callers to set an application= parameter identifying the app for their logs, and to avoid hammering the service (space out requests).
datum is mandatory for most water-level-linked products; using the wrong datum (e.g., MLLW vs MHHW) will silently shift all heights — confirm which datum the marina's chart/dock references use.
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