NOAA Tides and Currents
Coastal water levels and tidal data for HEC-RAS boundary conditions
tidesandcurrents.noaa.gov
At a glance
- Region
- United States
- Coverage
- 3,000+ water level stations
- Access
- Free
- Category
- Government
- Last updated
- 2025
What's inside
- Tidal Data
- Water Levels
- Boundary Conditions
- Coastal Modeling
- Real-time Data
What you can do with it
Typical work that data of this type supports.
- 01
Sea-level planning
Plan for sea-level rise and storm surge.
Because it has: Tidal Data
- 02
Saline intrusion
Track salt moving into rivers and aquifers.
- 03
Storage tracking
Follow storage and releases through the season.
Because it has: Water Levels
Where AI adds value
Ideas for machine learning and AI agents built on this kind of data.
- 01
Surge forecasts
Forecast surge and coastal water levels quickly.
- 02
Shoreline change
Detect erosion and accretion from imagery.
- 03
Storage from space
Estimate volume from satellite water area and altimetry.
Machine access and documentation
Open API
CO-OPS API api.tidesandcurrents.noaa.gov/api/prod/datagetter
Licence: US Government Work
Listed in our registry of open water APIs, which WaterDataGPT can query live.
Related water data
- USGS Flood InformationUnited States | Free
- National Groundwater Monitoring NetworkUnited States | Free
- USGS Water DataUnited States | Free
- USACE HEC Data Storage SystemUnited States | Free
- USGS Instantaneous Values APIUnited States | Free
- USGS Water Data for the NationUnited States | Free
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