Tides & Graphs
World Tide and Current Predictor – Produce your own custom-made daily or monthly graph for any location in the world! An excellent resource for divers world wide.
Tides Online – A graphic display of the tides anywhere in Washington State.
Seattle Tides – A daily graph of Seattle Tides – a great resource for advanced dive planning.
Daily Tides – This site allows you to choose any site in North America and give you a daily graph with hourly tidal heights.
Canada Tides – Tides, currents, and water levels for Canada brought to you by Fisheries and Oceans Canada.
Tide Links – Many links including freeware software prediction programs.
Resources and Tutorials
Ocean Link Tide Tutorial – An excellent tutorial on the theoretical aspects of tides and currents.
NOAA NOS Tide Tutorial – A thorough, easy to understand tutorial on tides and NOAA’s study of them.
NOAA Tide Tutorial – A detailed explanation of the origin of tides.
The Science of Tides – A very advanced explanation of tides.
NOAA CO-OPS - Tide predicitions for anywhere in the US. Includes GPS coordinates for the stations.