Outlook

Middle estimate, with the range the level has an 8 in 10 chance of landing in. The bars share one scale: change from today.

Next week · by Nov 2907.2 ft276.53 m−0.1 ft−0.04 m from todayLikely 907.1276.49 to 907.4 ft276.56 mChance of ending 1 ft0.3 m or more higher: under 5%

In 2 weeks · by Nov 9907.1 ft276.49 m−0.3 ft−0.08 m from todayLikely 906.9276.42 to 907.5 ft276.59 mChance of ending 1 ft0.3 m or more higher: under 5%

In a month · by Nov 25906.9 ft276.41 m−0.5 ft−0.16 m from todayLikely 906.5276.30 to 907.8 ft276.71 mChance of ending 1 ft0.3 m or more higher: 10%

Rises are harder to call. Heavy rain in the watershed can push the lake above these ranges within days.

Rain, past 7 days: 0.0 in1 mm watershed average
Rain forecast, next 7 days: 0.6 in15 mm normal 0.7 in17 mm

Statistical estimate, not safety, boating, or water-quality advice. For ramps, closures and advisories, check the U.S. Army Corps of Engineers.

Map

Map of Canyon Lake with the dam, level gauge and 20 public boat ramps.

Dam
Level gauge
Public boat ramp

Ramp locations from Texas Parks and Wildlife. Whether a ramp is open depends on the lake level; check the operator.

Level and outlook

FeetMeters above sea level

Measured
Middle estimate
8 in 10 range
Full pool

Show outlook as a table

Date	Low end	Middle	High end
Nov 2	907.1276.49	907.2276.53	907.4276.56
Nov 9	906.9276.42	907.1276.49	907.5276.59
Nov 25	906.5276.30	906.9276.41	907.8276.71

How well this outlook has done here

We tested the 2-week outlook on past years at this lake, as if made once a week with only what was known that day.

On average it was off by: 0.29 ft0.09 m Assuming the level stays the same was off by 0.49 ft0.15 m
Actual level inside our range: 79% of 428 tests; the range is built to catch 8 in 10
When we said a rise was possible (20–40%): 23% of those 22 times it ended 1 ft0.3 m or more higher

The rise chance uses the same threshold for every lake: 1 ft (0.3048 m).

Nearby lakes

Closest lakes in a straight line, with today's level.

About Canyon Lake

Canyon Lake is a U.S. Army Corps of Engineers reservoir on the Guadalupe River in Comal County, about 16 miles northwest of New Braunfels. Canyon Dam was completed in 1964 for flood control and water supply; the Guadalupe-Blanco River Authority manages the water rights and hydropower. As a flood-control lake, its level can climb well above normal after big storms in the Hill Country.

More: Wikipedia · Texas Water Development Board · U.S. Army Corps of Engineers

Full pool (conservation): 909.0 ft277.06 m
Highest level since 1988: 949.0 ft289.26 m, Jul 2002
Lowest level since 1988: 877.0 ft267.30 m, May 2025
Surface area at normal pool: 8,308 acres3,362 ha
Conservation storage: 378,781 acre-feet467 million m³
Dam: Canyon Lake Dam, 1964
River or creek: Guadalupe River
County: Comal
Owner: USACE - Fort Worth District

Elevations are feetmeters above sea level (NGVD29).

Common questions

Is Canyon Lake full right now?

On Oct 26 it was 907.4 ft, 1.6 ft below full pool (909.0 ft), holding 97% of its conservation storage.On Oct 26 it was 276.57 m, 0.49 m below full pool (277.06 m), holding 97% of its conservation storage.

Is Canyon Lake going up or down?

The middle estimate for Nov 9 is down about 0.3 ft, with an 8 in 10 chance it ends between 906.9 ft and 907.5 ft. The chance it ends 1 ft or more higher than today is under 5%. Heavy rain can change that quickly.The middle estimate for Nov 9 is down about 0.08 m, with an 8 in 10 chance it ends between 276.42 m and 276.59 m. The chance it ends 0.3 m or more higher than today is under 5%. Heavy rain can change that quickly.

Where does this data come from?

Daily levels come from the Texas Water Development Board and lake operators. The outlook is our own statistical model, using recent levels and forecast rain over the watershed.