The lake was 98.2% full on Friday, September 25, according to Water Data for Texas, with a mean water level of 908.16 feet and 371,974 acre-feet of reservoir storage.
That’s a small drop from the reservoir’s summer peak. Canyon Lake reached 100% of its conservation capacity in July, hitting a milestone that had not been reached since 2021. It remained at 100% as recently as of late August.
By September 18, the lake had dipped to 98.8% full. It fell to 98.3% on September 23 before reaching 98.2% on September 25.
Even with the recent decline, Canyon Lake remains in dramatically better shape than it was earlier this year.
On June 21, the reservoir was just 61.6% full, with a mean water level of 888.47 feet and 233,584 acre-feet of reservoir storage. By late August, it had climbed to 381,991 acre-feet and reached 100% of its conservation capacity.
The lake is also far fuller than it was at the same point last year. On September 21, 2025, Canyon Lake was 67% full and held 253,786 acre-feet of reservoir storage.
As of Friday, September 25, the reservoir had 371,974 acre-feet of storage against a conservation capacity of 378,781 acre-feet.
So while Canyon Lake is no longer sitting at the summer’s 100% mark, its latest numbers show just how much ground the reservoir gained during a dramatic 2026 turnaround.