Shared Service Canada (SSC) will be doing infrastructure maintenance which will affect the CHS Tidal Website on Saturday December 2, between 11:00 AM and 1:00 PM (ET). At this time, you may not have access to the website. We apologize for any inconvenience.
New water level tools are now online and we want to hear from you! Try out our new:
Send your feedback about our new tools to email@example.com.
Services and information
Interactive map showing observations, predictions, and forecasted water level data.
Monthly mean water level, historical tide and water level station data, and water level station benchmarks.
Predicted times and speeds of weak and strong currents.
Monthly water level bulletins and information on the Great Lakes – St. Lawrence river system.
Telephone information system on water levels and tides.
Web services for accessing official data on navigating modelled surface currents and water levels.
Learn about tides and currents in Canada and the history of tidal measurements.
Contact us for more information on tides currents or water levels.
What we are doing
- Canadian Hydrographic Service Non-Navigational (NONNA) Bathymetric Data
- Chart Index
- Natural Resource Maps
- S-100 services for safe and optimized e-navigation
- Automated Hydrographic Surface Vehicles
- Channel Survey and Sounding Vessels
- The Science of Hydrography