NOAA Tide Tables and Tidal Current Tables are now all digital
The following article was posted by the National Oceanic and Atmospheric Administration.
NOAA and its predecessor agencies have been producing printed Tide Tables and Tidal Current Tables annually since 1867. For over 150 years, commercial and recreational mariners have relied on this information to ensure safe navigation of U.S. seaports and coastlines and to determine speeds of tidal currents. Tide predictions covering domestic regions were mandated to meet the U.S. Coast Guard requirements for commercial vessels operating in U.S. waters.
Why and how we're going all digital
As the world moves further into the digital era, virtual resources continue to become more common. In 2008, NOAA's Center for Operational Oceanographic Products and Services (CO-OPS) dedicated its website to providing more accurate, up-to-date, and location-specific tide and tidal current predictions. In addition, a 2018 update to the U.S. Coast Guard regulations (33 CFR 164.33 Charts and Publications) sanctioned the use of digital predictions from the CO-OPS website to meet mariner carriage requirements. This shift followed a similar update allowing Electronic Navigational Charts and electronic copies of Coast Pilot to be used in lieu of paper charts and publications. Prompted by these changes, NOAA began to investigate the possibility of eliminating printed Tide Tables and Tidal Current Tables. And so it came to pass that the last hard-copy editions were published in October 2019, which include the 2020 predictions.
About the digital predictions
NOAA's digital predictions are accessible via the CO-OPS Tides & Currents website. This change allows NOAA to modernize some of its longest standing products and provide greater accessibility to accurate predictions. Here are the individual quick links to the predictions for Tides and Tidal Currents. NOAA's digital tide and current prediction tables provide users easy-to-read formats (e.g. graphical plot, table listings, calendar displays, and more) that can display specific locations up to two years in the future. All predictions are free. Users can generate predictions as PDFs and easily save or print.
International tide predictions
NOAA is dedicated to providing the most accurate data for its predictions. NOAA Online tide services do not include international locations, except for select Caribbean, Central American, and Pacific Island locations. International predictions are available through their country of origin. For questions on how to access these international predictions or general inquiries regarding digital tables, please contact NOAA via .