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Please be advised that due to a scheduled system update, real-time data will not be updated on the Wateroffice and the datamart during 18:00 - 22:00 (PDT) on July 23, 2021.

Please note there has been a delay in the publication of some new data to the Historical archive. New data may not include annual statistics such as peaks and extremes at this time; these will be published as soon as possible.

Water Level and Flow

Real-time hydrometric data

Explore real-time water level and flow (discharge) data collected at over 1900 hydrometric stations across Canada.

Historical hydrometric data

Explore historical water level and flow (discharge) data collected at over 7700 hydrometric stations across Canada.

Hydrometric Station and Network Data

Access station and network metadata (such as station name, location, drainage area, data type, gauge type, stream order).

Tools and Downloads

Download freely-available hydrometric data products and hydrological modelling tools.


Learn about the federal-provincial/territorial and international partnerships of the national hydrometric program.


Learn about the Water Survey of Canada, and access other websites related to water data or water resource management.

What we are doing

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