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Ocean & Tides

Tides, waves, and ocean forecasts

Ocean & Tides is a comprehensive ocean conditions tool covering tides, waves, sea temperature, currents, marine alerts, and real sensor readings for any coastal location worldwide. Whether you're planning a surf session, navigating a harbour, or researching tidal patterns, it pulls from authoritative data sources to give you what you need.

For beaches and surf spots globally, you get hourly wave height, swell direction, period, and sea surface temperature up to 7 days out. For US coasts, you get precise tide predictions from NOAA stations, observed sensor readings, ocean current predictions, and active marine weather warnings. Historical tidal statistics let you analyse seasonal patterns and flood risk.

What you can do

  • Get a complete beach report — waves, water temp, currents, and alerts in one call
  • Forecast high and low tides for any NOAA station on US coasts
  • Get hourly wave and swell forecasts for any ocean location worldwide
  • Read real-time sensor data from NOAA stations (water temp, wind, pressure, salinity)
  • Predict ocean current velocity and direction at NOAA current stations
  • Check active marine weather warnings including gale, storm, and rip current alerts
  • Retrieve historical monthly tidal statistics for long-term analysis
  • Look up station datums, flood thresholds, and harmonic constituents

Who it's for

Surfers, sailors, beach-goers, marine researchers, harbour pilots, coastal engineers, and anyone who needs reliable ocean and tide information for planning or analysis.

How to use it

  1. Start with beach_report for a full overview of any coastal location — pass latitude and longitude
  2. Use find_stations to locate the nearest NOAA station, then tide_forecast for precise tide times
  3. Use wave_forecast with coordinates for surf conditions anywhere in the world
  4. Use marine_alerts to check active warnings before heading out on US waters

Getting started

No setup required — all skills run without any API key.

Tide Forecast

Get high and low tide times and heights for a NOAA station. Covers US coasts, territories, and Great Lakes. Returns tide predictions for 1-7 days with times and water levels.

Returns: High and low tide times and heights for the requested period
Wave Forecast

Get wave height, swell, and surf conditions for any ocean location worldwide. Returns hourly forecasts including wave height, wave period, wave direction, swell height, swell period, wind wave details, and daily sea surface temperature for up to 7 days.

Returns: Hourly wave and swell forecast with current conditions snapshot, daily summary, and sea surface temperature
Ocean Conditions

Get sea surface temperature, ocean currents, and water conditions for any ocean location worldwide. Returns current conditions plus hourly forecasts.

Returns: Sea surface temperature and ocean current data with hourly forecast
Find Stations

Find NOAA tide prediction, water level, water temperature, or current prediction stations near a given location. Returns the closest stations with their IDs, names, coordinates, and distance. Use the station ID with tide_forecast, station_conditions, current_predictions, or station_info.

Returns: List of nearby NOAA stations with IDs, names, coordinates, and distance in km
Marine Alerts

Get active marine weather alerts and warnings for a location. Covers small craft advisories, gale warnings, storm warnings, hurricane warnings, rip current statements, and tsunami alerts. US coasts only.

Returns: Active marine weather alerts with event type, severity, headline, and detailed description
Beach Report

Complete conditions report for a beach or coastal location. Combines waves, SST, currents, and marine alerts in one snapshot. Global for waves and water temp; US-only for tides and alerts.

Returns: Complete beach conditions: waves, water temp, currents, wind, sea surface temperature range, and marine alerts in one response
Station Conditions

Get real observed conditions from a NOAA CO-OPS station — actual sensor readings, not forecasts. Returns water temp, wind, air temp, pressure, water level, salinity, humidity, visibility, and conductivity. Unavailable sensors return null.

Returns: Real observed conditions from station sensors: water temp, wind, air temp, pressure, water level, salinity, humidity, visibility, and conductivity
Current Predictions

Get ocean current velocity and direction predictions at NOAA current stations. Returns predicted current speed, direction, flood/ebb indicators, and timing. Current stations are different from tide stations — use find_stations with type "currents" to locate them.

Returns: Predicted ocean current velocity, direction, and flood/ebb indicators for the requested period
Tidal Statistics

Get monthly mean tidal levels for a NOAA station over a date range. Returns monthly mean high water, low water, mean sea level, tide range, and highest/lowest values for historical analysis.

Returns: Monthly mean tidal levels with statistical summary for historical analysis
Station Info

Get complete reference data for a NOAA station including tidal datums (MHHW, MHW, MSL, MLW, MLLW), flood level thresholds (minor, moderate, major), and top harmonic constituents. Not all stations have all three data types — each is fetched independently.

Returns: Station reference data: tidal datums, flood level thresholds, and harmonic constituents
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v0.032026-03-22
  • Added current_predictions skill for ocean current velocity and direction at NOAA current stations
  • Added tidal_statistics skill for monthly mean tidal levels and historical analysis
  • Added station_info skill for datums, flood levels, and harmonic constituents
  • Enhanced find_stations with currents station type
  • Enhanced station_conditions with salinity, humidity, visibility, and conductivity products
  • Enhanced wave_forecast and beach_report with daily sea surface temperature min/max
v0.022026-03-22
  • Added station_conditions skill for real observed NOAA CO-OPS station readings
v0.012026-03-22
  • Initial release with 6 skills: tide_forecast, wave_forecast, ocean_conditions, find_stations, marine_alerts, beach_report

Connect ToolRouter to use Ocean & Tides in Claude, ChatGPT, Copilot, and more — no code required.

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What you can do with Ocean & Tides

Check Beach Conditions Before You Go

Get current beach conditions including water quality, flag status, and safety information before heading to the coast.

  1. Ask: "Check beach conditions at Newquay using ocean-data"
  2. Claude returns flag status, water quality, hazards, and facilities
  3. Ask: "Is it safe to swim with children today?"
  4. Request: "What time does lifeguard cover start and finish?"

Get a Wave Forecast for Surfing or Water Sports

Access detailed wave height, period, and direction forecasts to plan surf sessions and water sports activities.

  1. Ask: "Get the wave forecast for Newquay for the next five days using ocean-data"
  2. Claude returns height, period, direction, and wind data by day
  3. Ask: "Which day will have the best surfing conditions for an intermediate surfer?"
  4. Request: "Explain what the swell direction means for the main beach at Newquay"

Plan Activities Around Tidal Statistics

Access tidal statistics and beach conditions to plan coastal walks, fishing trips, and boat launches around tide times.

  1. Ask: "Get tidal statistics for Holy Island, Northumberland using ocean-data"
  2. Claude returns tidal range, high and low water times, and mean levels
  3. Ask: "When is the safe crossing window for the causeway today?"
  4. Request: "What are the best two hours for rock pooling on this coastline tomorrow?"
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Frequently Asked Questions

How do I get tide times for a beach or harbor?

Use `tide_forecast` with a NOAA station ID for high and low tides. It covers US coasts, territories, and Great Lakes, with 1-7 day predictions.

Can I check waves and water conditions outside the US?

Yes. `wave_forecast` and `ocean_conditions` work worldwide for surf, swell, sea temperature, and currents. Tide predictions and marine alerts are US-only.

How do I find the right station ID first?

`find_stations` searches nearby NOAA tide, water level, water temperature, and current stations and returns the IDs you can use in the forecast tools.

What is included in a full beach report?

`beach_report` combines waves, sea surface temperature, currents, wind, and marine alerts into one snapshot so you can check conditions in a single call.