Tides, Currents, and Water Levels

Tides, currents and water levels (TCWL) can have a profound effect on navigation, harbour construction and many other marine activities. Canada has 250,000 kilometres of coastline and some of the largest tidal ranges in the world, such as the Bay of Fundy. To ensure marine safety, CHS is actively engaged in studying and measuring tides, currents and water levels at some 700 locations across Canada.

Be prepared by checking out our online information. By accessing our interactive maps, you can determine the gauging station numbers you need. You can look at recent measurements, future predictions as well as archival information. In fact, we have over 30 million records dating back to 1899.

Observed Water Levels
Archive

Observed Water Levels
Real-time

TCWL
Predictions

TCWL
Current Tables

Benchmark Database

Publications & Related Products