Marine Comprehensive Forecast
marine.ocean.forecastGet hourly marine forecasts for any ocean coordinate up to 16 days ahead, including wave height, direction, period, swell, and sea surface temperature.
Instructions
Full hourly marine forecast at any ocean coordinate up to 16 days ahead. Returns all marine variables: significant wave height (m), mean wave direction (°), mean wave period (s), swell wave height (m), swell direction (°), swell period (s), and sea surface temperature (°C). Data is sourced from CMEMS ERA5 reanalysis and global wave models (ERA5-Ocean, MEPS, GFS). Ideal for offshore operations, ship routing, marine research, and multi-variable coastal planning. Supply latitude/longitude of an open-ocean or coastal point; land coordinates return null values. Source: Open-Meteo Marine API, CC BY 4.0, no authentication required.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| latitude | Yes | Latitude of the ocean location in decimal degrees (e.g. 51.5 for English Channel, 48.5 for Bay of Biscay). Must be over open water — land coordinates return null values. | |
| timezone | No | Timezone for the returned time values (e.g. "UTC", "Europe/London", "America/New_York"). Defaults to UTC. | |
| longitude | Yes | Longitude of the ocean location in decimal degrees (e.g. -14.0 for Atlantic, 2.3 for North Sea). | |
| forecast_days | No | Number of days to forecast (1–16). Defaults to 7. Hourly data is returned for each day. |
Output Schema
| Name | Required | Description | Default |
|---|---|---|---|
| error | No | Present only when the call failed. Includes error code, message, request_id, and any provider-specific extras. | |
| result | No | Tool response payload. Shape varies per tool — consult the tool description and inputSchema. May be an object, array, string, or number depending on the upstream provider response. |