Nibi Metrics
Real-time water levels, forecasts, and alerts for lakes and rivers across Canada and the US. Built on official government data.
Nibi Metrics turns raw gauge readings from official hydrometric networks into something a person standing on a dock can actually use: is the water high or low for today, which way is it moving, and how unusual is this? This page explains where every number on the platform comes from and what we do to it along the way.
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San Juan River near Port Renfrew Water Level
Live river level, flow, historical records and forecast for San Juan River near Port Renfrew in Canada, BC, Canada, built from official government gauge data.
- Location Canada, BC, Canada
- Watershed southern vancouver island
- Primary gauge 08HA010 (Water Survey of Canada)
About San Juan River near Port Renfrew
San Juan River - A vital waterway in Southern Vancouver Island.
The San Juan River flows near Port Renfrew on British Columbia's Southern Vancouver Island, connecting diverse ecosystems and providing essential resources to the surrounding environment. This river serves as an important part of the island's water system, alongside its peers, including Bings Creek and the Chemainus River. Spanning a catchment area of approximately 578 square kilometres, the San Juan River is shaped by the unique hydrology of the region, characterized by seasonal freshet due to snowpack that typically peaks from May to July.
The watershed context
The San Juan River is part of the Southern Vancouver Island watershed, integrating various smaller rivers and creeks within its network. The river's flow plays a crucial role in supporting both aquatic life and terrestrial communities that rely on its waters. Surrounded by a rich tapestry of forests and wildlife, this area contributes to the diverse flora and fauna found in the region. Nearby water bodies, such as the Cowichan River and Cowichan Lake, also showcase the interconnectivity of the water systems on the island.
Why the data matters here
Monitoring the San Juan River is crucial for understanding local water conditions, particularly given the annual variations driven by the region's mountain hydrology. Today's reading at the San Juan River station is significant; it reflects how the current conditions compare against the median for this day across 49 years of historical data provided by the Water Survey of Canada. By evaluating this reading instead of solely focusing on absolute elevation, we gain valuable insight into the river's health and the overall patterns affecting the waterway, making it an essential resource for cottagers, anglers, and environmental stewards.
How this page is built
Readings come from official government gauges and are rolled into daily records: the daily mean, high and low for every day on record. Each calendar day gets its own baseline from the full history, so the level you see is compared against what this specific date usually looks like rather than an annual average.
How Nibi Metrics works · Water stories
