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.
Water Stories
For five years, spring 2019 was the mark every Lake Muskoka decision answered to. In April 2026 the lake went two centimeters higher - and the official books have not caught up yet.
Inside the freshet cycle that puts Manitoba shorelines at risk each year - and why 2026 broke the script.
The science of snow water equivalent and why it drives the season ahead.
What the numbers on the measuring stick actually tell you.
Why Central and South Texas rivers go from gravel beds to fifty-year records in an afternoon - including July 2026 on the Nueces.
One percent, every year, forever - unwrapping hydrology's most misunderstood phrase, and how it differs from our own percentiles.
Lake of Bays Water Level
Live lake level, flow, historical records and forecast for Lake of Bays in Muskoka, ON, Canada, built from official government gauge data.
- Location Muskoka, ON, Canada
- Watershed muskoka
- Primary gauge 02EB019 (Water Survey of Canada)
About Lake of Bays
Lake of Bays - A sprawling waterway in Muskoka.
Lake of Bays, nestled in the heart of Ontario's Muskoka region, is a significant body of water known for its vast size and varied shoreline. It serves as a cherished location for cottagers and recreationists seeking lakeside enjoyment, while also offering a natural habitat for a diverse range of wildlife. This lake, with an impressive drainage area of approximately 1,410 square kilometres, plays a crucial role in the local hydrology and ecology.
The watershed context
The Lake of Bays watershed is part of the larger Muskoka area, which is interwoven with other notable lakes and rivers, such as Big East River, Fairy Lake, and Kawagama Lake. Together, these waterways create an interconnected hydrological network that supports both recreational activities and ecological diversity. The regional climate defines the seasonal rhythms for Lake of Bays, where snowmelt drives the spring freshet from late April to May, and natural summer drawdown occurs from July to September, with early winter declines as the lake begins to freeze.
Why the data matters here
Water levels and conditions in Lake of Bays are monitored and reported through a gauge station at Baysville. While this station does not measure discharge, it provides critical information about the lake's water levels over time. Today's reading, taken from the Water Survey of Canada's records, allows for comparison against the median level for this calendar day over the past 22 years. This context helps to highlight any fluctuations or trends, indicating how current levels may impact local ecology and recreational opportunities. Understanding these patterns ensures better preparedness for cottagers, anglers, and environmental stewards alike, supporting the responsible enjoyment of this beloved waterway.
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
