Canyon Lake water level today
On Oct 28, 2026, Canyon Lake is at 907.34 ft, 96.4% full (1.66 ft below full pool). That is 7.0 points above normal for this date.
Source: Texas Water Development Board · storage 365,267 of 378,781 acre-ft · provisional data
Canyon Lake percent full history
Percent full Normal range (10th–90th percentile, 1996–2025) Average
Canyon Lake from space
The same area near the lowest and the highest level since 2016, on clear days. Compare the shoreline and the coves.
Imagery: NASA GIBS, Harmonized Landsat Sentinel-2 (HLS). Landsat 8/9 courtesy of NASA/USGS; contains modified Copernicus Sentinel data 2025. Black specks are cloud and shadow masks.
Records and key dates
- Record high
- 100.0%May 6, 1990
- Record low
- 45.1%May 26, 2025
- 12-month high
- 100.0%Jul 21, 2026
- 12-month low
- 58.3%Apr 18, 2026
- Last time full
- Sep 7, 2026
- Change in 1 year
- +16.96 ft+31.7 pts
About Canyon Lake
- River basin
- Guadalupe
- Full pool (top of conservation pool)
- 909.00 ft
- Conservation capacity
- 378,781 acre-ft
- Surface area today
- 8,046 acres
- Dead pool elevation
- 775.00 ft
- Flood control reservoir
- Yes
- Data since
- Oct 1, 1988
Monthly average, last 10 years
Average percent full each month.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 61% | 61% | 60% | 59% | 59% | 60% | 80% | 100% | 99% | 97% | — | — |
| 2025 | 50% | 49% | 48% | 47% | 46% | 46% | 63% | 68% | 67% | 65% | 64% | 62% |
| 2024 | 60% | 60% | 60% | 59% | 58% | 57% | 56% | 57% | 55% | 54% | 52% | 51% |
| 2023 | 79% | 78% | 77% | 76% | 76% | 75% | 73% | 70% | 67% | 64% | 63% | 61% |
| 2022 | 99% | 98% | 98% | 97% | 96% | 94% | 91% | 88% | 86% | 84% | 82% | 80% |
| 2021 | 89% | 88% | 88% | 87% | 89% | 93% | 94% | 95% | 94% | 97% | 100% | 100% |
| 2020 | 93% | 94% | 94% | 94% | 95% | 98% | 96% | 94% | 93% | 92% | 90% | 89% |
| 2019 | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 98% | 95% | 94% | 94% |
| 2018 | 92% | 92% | 92% | 93% | 92% | 91% | 89% | 87% | 90% | 98% | 100% | 100% |
| 2017 | 100% | 100% | 100% | 100% | 100% | 99% | 97% | 96% | 95% | 94% | 93% | 93% |
Frequently asked questions
Is Canyon Lake full?
Not quite. On Oct 28, 2026 Canyon Lake was 96.4% full, 1.66 feet below its full pool elevation of 909.00 ft. It was last full on Sep 7, 2026.
What is the normal level of Canyon Lake for this time of year?
Between 1996 and 2025, Canyon Lake averaged 89.4% full around Oct 28, and 8 in 10 years it was between 73.4% and 100.0%. Today it is +7.0 percentage points above that average.
What is the lowest Canyon Lake has been?
In the TWDB record, which starts in 1988, the lowest daily value was 45.1% on May 26, 2025. The highest was 100.0% on May 6, 1990.
How often is the Canyon Lake water level updated?
TWDB publishes one reading per day for each reservoir. We check for new data every 2 hours and show the date of the reading next to the level. Recent values are provisional.
What does percent full mean?
It is the water stored in the conservation pool divided by the conservation capacity (378,781 acre-feet for Canyon Lake). Water above the conservation pool is flood storage and is not counted, so a reservoir can show 100% while rising into its flood pool.