Please be advised that due to a scheduled system update, the historical data on the Wateroffice will not be available from 11:00 am to 12:00 pm EDT on September 21, 2023.
Water Level and Flow
Search by station name, station number, or location for real-time unit values or provisional daily mean values of water level and discharge data. Refine your search by data or station attributes. Results will be in list format.
Explore historical daily water level and flow (discharge) data collected at over 7900 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
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