Texas · New Braunfels, TX

Comal River float season

Gauge 08169000 on the Prince Solms Park through the Tube Chute to the Guadalupe confluence. A short spring-fed ribbon through downtown New Braunfels where 72-degree water and the famous Tube Chute make it the state's most beloved urban float.

tubing Fullest: Jan–Mar Leanest: Jul–Sep
Comal River — typical flow through the year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 30 100 250 400
median flow for the date middle half of years (25th–75th percentile) most years (10th–90th)

Right now at this gauge

loading CFS

Checking the live gauge…

Live reading from the USGS gauge page for Comal River. Provisional data — subject to revision.

The year on this river

In a typical year at the New Braunfels gauge, the Comal River runs fullest Jan–Mar and leanest Jul–Sep. The swing is small by river standards — flows hold fairly steady through the seasons, which usually points to springs or dam releases doing the work. Half of all past January days at this gauge ran above 312 CFS; the August median is 268 CFS.

Median of daily flows in each month across this gauge's full record — half of past days ran above these figures, half below.
Month Typical flow (CFS) Relative volume
January 312
February 312
March 308
April 312
May 308
June 300
July 286
August 268
September 275
October 286
November 295
December 308

Record context

This gauge has measured daily flow since 1933 — 93 years of record. The largest daily average ever logged here was 22,000 CFS, in October 1999. Rivers do that sometimes; it's why the safety panel above isn't decoration.

Planning dates? The trip-window checker shows what flows have historically looked like on any week you pick for this river, or see what a CFS actually looks like.

More Texas float rivers

Common questions

When is the Comal River usually at its fullest?

At the New Braunfels gauge, the fullest stretch of a typical year is Jan–Mar, with the single highest monthly median in January (about 312 CFS). The leanest months are usually Jul–Sep. This river holds unusually steady across the year, so the swing between those extremes is small.

What is a typical summer flow on the Comal River?

The July median at this gauge is about 286 CFS — half of past Julys ran higher, half lower. Late summer is this river's lean season, so expect readings to drift down as the season goes on.

Is the Comal River safe to float right now?

No flow number can answer that, and this site never labels a river safe. What the data can tell you is how today's reading compares with 93 years of this date's history — well above typical means pushier, colder, faster water. Pair that context with a PFD, a look at the river from the bank, and a call to a local outfitter before you commit.

Which USGS gauge does this page use?

USGS gauge 08169000 (Comal Rv at New Braunfels, TX), chosen because it best represents the Prince Solms Park through the Tube Chute to the Guadalupe confluence. Daily records here reach back to 1933.

Data: USGS gauge 08169000, approved daily records 1933–2026, retrieved 2026-08-07. Live readings are provisional and subject to revision. U.S. Geological Survey data is public domain.