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We have recently moved our data services to the cloud. Please make sure to use the updated URL's for all API calls, information is available in the links below. Questions? Contact tide.predictions@noaa.gov
Web Services

We provide our data to customers who want to use it in their own applications. These services enable manual or automated machine-to-machine data, model, and product retrievals. Data can be downloaded in multiple formats, such as CSV, XML, KML, NetCDF, JSON, TXT, and DODS.
To prevent numerous large data requests slowing data access through the internet services; all internet data services have limits on the amount of data which can be retrieved per request. These limits are based on the interval of data requested.
Featured Services
CO-OPS API Builder
API
Application
Data Retrieval
  • Navigate, build, and submit URLs to query station listings, observations, predictions and derived products using various CO-OPS APIs (Data API, Metadata API and Derived Product API)
  • Output format: XML, JSON, dependant on selected API
CO-OPS Data API
API
Webpage
  • Documentation helping users retrieve past and present observations and predictions from CO-OPS Stations
  • Retrieves data from products unique to a specific station including water level, visibility, air temperature, predictions, datums, and more
  • Output format: CSV, XML, JSON
CO-OPS Metadata API (MDAPI)
API
Webpage
  • Documentation helping users retrieve associated metadata from CO-OPS stations
  • Retrieves data such as station location, datums, harmonic constituents, built-in sensors, tide predictions, flood levels and other station details
  • Output format: XML, JSON
CO-OPS Derived Product API (DPAPI)
API
Webpage
  • Documentation helping users retrieve information about CO-OPS' derived products
  • Products included are top ten water levels, yearly inundation statistics, extreme water levels, and sea level trends
  • Output format: XML, JSON
GIS Data Portal
Webpage
  • Provides public access to CO-OPS stations and derived data products in the form of GIS (Geographic Information Systems) services
  • Output format: Shapefiles, WMS, WFS, JSON, KML
Other Services
THREDDS
Server
  • Thematic Real-time Environmental Distributed Data Services (THREDDS) allows users to access and download data sets such as NetCDF Operational Forecast System (OFS) data and its sub-samples in ASCII and Binary formats through OPeNDAP protocol
  • Output format: NetCDF, ASCII, and other formats
Amazon Web Services
Data Retrieval
Webpage
  • Access Operational Forecast System Data on Amazon Web Services (AWS) stored in an Amazon S3 bucket.
  • Output format: NetCDF
  • Retrieval methods: Panoply, ncdump, and other tools are also available.
ERDDAP
Application
Data Retrieval
Server
  • Environmental Research Division's Data Access Program (ERDAPP) allows users to make graphs, maps, and download subsets of scientific datasets
  • Provides Data Access Forms (webpages) which help users create open-source project for OPeNDAP (open-source project for a network data access protocol) compliant request
  • Output format: HTML, CSV, json, NetCDF, etc.
SOAP Web Services
Data Retrieval
Webpage
  • Offers different SOAP (Simple Object Access Protocol) web services that contains sample requests, sample responses and sample Java Client code
  • Users can seamlessly connect to the services and to retrieve the data of interest.
  • Output format: XML, HTML, TXT
Stations Listing
Application
Webpage
  • Retrieves a list of active National Water Level Observation Network (NWLON) stations
  • Provides viewable and downloadable station metadata, listing sensors and data in real-time
  • Output format: XML, HTML, TXT
SOS
Application
Data Retrieval
  • Provides data retrieval of the latest observations, time series, and historical data in multiple data formats. Data can be requested for a single station and for a "collection" of stations
  • Output format: CSV, TSV, XML and KML
NowCOAST
Webpage
A web mapping portal providing spatially referenced links to real-time coastal observations and NOAA forecasts of interest to the marine community
Website Owner: Center for Operational Oceanographic Products and Services
National Oceanic and Atmospheric Administration
National Ocean Service
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