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 annual daily extremes and annual instantaneous extremes at this time; these will be published as soon as possible.
Water Level and Flow
Explore real-time water level and flow (discharge) data collected at over 1900 hydrometric stations across Canada.
Explore historical water level and flow (discharge) data collected at over 7700 hydrometric stations across Canada.
Access station and network metadata (such as station name, location, drainage area, data type, gauge type, stream order).
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.
- National Hydrometric Network Basin Polygons
- Wateroffice Release
- HYDAT Release
- Height Modernization Status
- November 14-16, 2021 - Southwest BC Highwater Event
What we are doing
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