Canada
United States
Belgium
France
Ireland
Netherlands
United Kingdom
Austria
Czechia
Germany
Poland
Slovenia
Switzerland
Italy
Spain
Türkiye
Denmark
Finland
Norway
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
Swimming and boating at Great Slave Lake at Hay River
Without a published normal range, the trend is the most useful thing here: a steady lake means few changes at the shore.
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
The forecast is not available right now.
Map
Nearby gauges
| Gauge | Level | Compared with normal | 24 hours | Distance |
|---|---|---|---|---|
| Hay River near Hay RiverRiver gauge, Hay River | 2.19 m | Normal | −0.02 m | 15 km |
| Buffalo River at Highway No. 5River gauge, Buffalo River | 83.9 m³/s | Normal | +0.50 m³/s | 48 km |
Questions and answers
How often is Great Slave Lake at Hay River updated?
Several times an hour. New readings from Environment and Climate Change Canada – Water Survey of Canada appear here as they arrive. Latest: Oct 16, 2026, 09:35 AM MDT.
Is Great Slave Lake at Hay River rising or falling?
It is rising, by 0.08 m over the past 24 hours.
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?
Latest reading. 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 stage | 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 16, 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