910.98 ft NGVD29
level Reading is on the low side for late September.
Reading comes straight from U.S. Geological Survey National Water Information System (USGS gauge 12439000) and updates live when you load this page.
Osoyoos Lake through the year
The band is the lake's own normal: where the level has run on each calendar day, 1980–2026. The summer drawdown — and how this year sits in it — shows up without reading a single number.
This year vs the years that matter
This year's trace against last year and the driest and wettest years on record — the drought-context question every lake regular asks.
- 2026 (this year)
- 2025 (last year)
- 1983 (wettest on record)
- 2023 (driest on record)
Osoyoos Lake water temperature
77° as of August 25, 2026
Read from the USGS lake gauge near Oroville. It reads the American end of a lake that carries on across the Canadian border, and its year runs from about 37° in January to the upper seventies in July. One sensor is one spot on the lake. A shallow cove on a still afternoon runs warmer than this, and the water a few feet down runs colder.
Water temperature is not water safety. A warm surface says nothing about what is under it — colder water a few feet down, currents near the dam or the spillway, or a bacteria advisory — so check with the lake office before you get in.
Full pool, datum, and the gauge
"Full pool" here means the conservation pool — the level the lake is designed to hold for water supply and recreation, not the flood-control space above it. The full explainer covers flood pool and dead pool too.
| Full pool | not published by the operator |
|---|---|
| Gauge | USGS gauge 12439000 · U.S. Geological Survey National Water Information System |
| Datum | NGVD29 |
| Last verified | August 20, 2026 |
LakeDates reports lake level, not ramp status. Whether a given ramp or marina is usable at this level varies ramp by ramp — call the marina before you tow.
Quick answers
What is the lake level for Osoyoos Lake today?
Osoyoos Lake is at 910.98 ft (NGVD29) as of September 30, 2026 — Reading is on the low side for late September.
Is Osoyoos Lake full?
Natural lake; USGS gauge doesn't publish a conservation-pool figure for Osoyoos Lake, so this page shows the reading against the lake's own seasonal history instead.
What is full pool for Osoyoos Lake?
Natural lake; USGS gauge doesn't publish a single conservation-pool elevation for Osoyoos Lake. The seasonal chart shows the range the lake actually runs instead.
What is the water temperature at Osoyoos Lake?
Osoyoos Lake was 77° on August 25, 2026. Read from the USGS lake gauge near Oroville. It reads the American end of a lake that carries on across the Canadian border, and its year runs from about 37° in January to the upper seventies in July. One sensor is one spot on the lake. A shallow cove on a still afternoon runs warmer than this, and the water a few feet down runs colder.