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SwedenGreat Slave Lake at Hay River water level
Lake, Great Slave Lake, Northwest Territories, Canada
Right now
Latest reading
Water level
History
What this means
The latest water level at Great Slave Lake at Hay River is 156.77 m. The agency publishes no normal range or warning level for this lake yet, so there is nothing to judge the number against.
The water is rising: up 0.08 m over the past 24 hours. Over the past 30 days it has moved between 156.57 m and 157.02 m.
Over the past seven days the change adds up to −0.05 m.
The agency publishes no normal range for this gauge yet, so we show the trend only. How to read levels
Key numbers
- Lowest and highest in 30 days
- 156.57 m – 157.02 m
- Lowest and highest in 12 months
- 156.65 m – 156.90 m
Swimming and boating at Great Slave Lake at Hay River
Without a published normal range, the trend is the most useful guide, and right now the water is rising.
If you swim, pick a spot with an easy way out, and remember that drop-offs move as the level changes.
Weather at the gauge
No rain in the last 3 days.
Forecast: Open-Meteo
Map
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Hay River near Hay RiverRiver gauge, Hay River | 2.12 m | Normal | −0.02 m | 15 km |
| Buffalo River at Highway No. 5River gauge, Buffalo River | 82.8 m³/s | Normal | −3.50 m³/s | 48 km |
Questions and answers
What is the water level of Great Slave Lake at Hay River today?
On Oct 16, 2026, 09:35 AM MDT, the water level was 156.77 m. Up 0.08 m over the last 24 hours.
Is Great Slave Lake at Hay River rising or falling?
Up 0.08 m over the last 24 hours. Down 0.05 m over the last 7 days.
Is the level of Great Slave Lake at Hay River normal?
The agency publishes no normal range for this gauge yet, so we show the trend only.
How often is this data updated?
Environment and Climate Change Canada – Water Survey of Canada publishes a new reading every hour. This page refreshes within minutes of each update.
Where does this data come from?
The values come directly from Environment and Climate Change Canada – Water Survey of Canada, the official operator of this gauge, and are published under the Open Government Licence – Canada. We do not estimate or model live values.
For specialists
Station codes, datum, parameters, data quality and downloads
- Operator
- Environment and Climate Change Canada – Water Survey of Canada
- Station code
eccc:07OB002(Agency page)- Coordinates
60.85986, -115.73419(WGS84)- Vertical datum
- station datum (assumed datum)
- Update interval
- every hour
- Licence
- Open Government Licence – Canada. Contains information licensed under the Open Government Licence – Canada
Published series
| Parameter | Last value | Time (UTC) | Quality |
|---|---|---|---|
| Water level | 156.77 m | 2026-10-16 15:35 | Provisional |
Download
Embed this gauge
Add a live card for this gauge to your website. It updates on its own and links back here.
How to cite
Environment and Climate Change Canada – Water Survey of Canada: Great Slave Lake at Hay River (eccc:07OB002). Accessed October 19, 2026 via Nivelmap, https://nivelmap.com/en/canada/northwest-territories/great-slave-lake-at-hay-river
How we check values
Each reading is stored as published. We hold back values that jump faster than physically plausible and show the measurement time with every value.
Readings are provisional, can be delayed or wrong and are not a flood warning. Read the disclaimer