Guadalupe River Fly Fishing Report
New Braunfels, Comal County, Texas · Last Updated: July 16, 2026
Texas's only wild trout stream, the Guadalupe below Canyon Dam is a surprising gem. Its cold tailwater supports the southernmost wild rainbow trout population in the United States, and the warm-weather fishing for these fish on dry flies is a uniquely Texas experience.
Today's Trout Fishability
Conditions at a Glance
Flow on the Guadalupe near New Braunfels is well above normal, with the gauge above the Comal at 313 cfs (+103% vs average) and upstream at Spring Branch surging to 19,600 cfs.
- High water - consider wading safety
- Heavy rain may blow out and muddy the water
- Blown out
- Heavy rain/storms likely
How Do You Fish a 3.3/10 Day?
See the fly patterns built for today's conditions, where the fish are holding, and how to work the 5:30 AM - 9:00 AM, 6:00 PM - 8:00 PM window.
Today's Weather
See hourly conditions, wind speeds, barometric pressure, and 5-day outlook
USGS Water Monitoring
Real-time data from 7 monitoring stations
See station-by-station details, historical ranges, and trend analysis
What's Hatching This Month
Southeast & Southern Appalachia — typical for July
3.3/10 Today — See the Full Guadalupe River Breakdown
Free account unlocks fly patterns, a hatch forecast, and tactics matched to today's exact flows. 3 reports a month, no credit card.
Guadalupe River Fly Fishing — FAQ
Is the Guadalupe River fishing well right now?
DriftWise scores the Guadalupe River every morning on a 0–10 fishability scale that weighs real-time USGS flow and water temperature, National Weather Service forecasts, and lunar data. Check the live fishability score and condition summary above for today's rating before you head out.
What is the current water flow on the Guadalupe River?
The Guadalupe River's flow is tracked by USGS streamflow gauges near New Braunfels, Comal County, Texas and refreshed daily in the condition summary above. Flow is reported in cubic feet per second (cfs) and compared against the seasonal average so you can see whether the river is running high, low, or normal.
What is a good water temperature for trout on the Guadalupe River?
Trout feed most actively when water temperatures sit roughly between 48°F and 62°F. DriftWise reads live Guadalupe River water temperature from USGS sensors near New Braunfels, Comal County, Texas — see the summary above for the current value.
When is the best time of day to fish the Guadalupe River?
The most productive windows shift with the season: cold months fish best around midday (10 AM–2 PM) once the water warms, while summer rewards early mornings and evenings. Each Guadalupe River report factors in the current season.
Do I need a fishing license to fly fish the Guadalupe River?
Yes. A valid Texas fishing license is required to fish the Guadalupe River. Check current Texas regulations for seasons, limits, and any special catch-and-release or fly-fishing-only sections before you go.
Is the DriftWise Guadalupe River fishing report free?
Yes. The daily Guadalupe River condition summary — flow, water temperature, weather, and fishability score — is free. A free account (3 reports per month) unlocks the full AI analysis with fly-pattern recommendations and a detailed hatch forecast.
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