Waters · United States
Guadalupe River (Canyon Tailwater) fishing report
Updated Tuesday, 25 August 2026 · refreshed automatically through the day
The southernmost trout fishery in the United States exists only because cold water comes off the bottom of Canyon Lake. Stocked rainbows hold through winter and mostly die out each summer, so the season is genuinely finite.
Today's report: excellent (85/100)
Channel Catfish is the most promising species on Guadalupe River (Canyon Tailwater) today. Water temperature is around 26.9°C and barometric pressure is rising. Gauge Guadalupe Rv nr Spring Branch, TX shows the water level falling (1 cm/24h).
Guadalupe River (Canyon Tailwater) water temperature and flow
- Discharge: 5.7 m³/s (201 cfs) — down 3% over 24 hours
- Level trend: falling (1 cm/24h)
Measured at gauge Guadalupe Rv nr Spring Branch, TX · reading 23 min ago. Published by the national hydrological service, not estimated by us.
Best time to fish today
- 07:00–09:00 local time — score 79/100
- 01:00–03:00 local time — score 85/100
- 05:00–07:00 local time — score 87/100
3-day outlook by species
| Species | Tuesday 25 Aug | Wednesday 26 Aug | Thursday 27 Aug |
|---|---|---|---|
| Rainbow Trout | 41 — fair | 39 — poor | 39 — poor |
| Largemouth Bass | 67 — good | 67 — good | 66 — good |
| Channel Catfish | 85 — excellent | 88 — excellent | 86 — excellent |
Why this score
Cast & Scan uses a deterministic, published scoring model — no black box. The strongest influences on today's Guadalupe River (Canyon Tailwater) rating:
- water temperature: helping (+1)
- pressure trend: helping (+1)
- season: helping (+1)
- precipitation: helping (+0.9)
- light: helping (+0.85)
- wind: helping (+0.85)
Forecast computed Tue, 25 Aug 2026 12:22:46 GMT · data: Open-Meteo + gauge Guadalupe Rv nr Spring Branch, TX · refreshed automatically through the day · see our published accuracy
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Nearby waters
- Lake Fork — Texas, USA (427 km away)
- Lake Texoma — Texas/Oklahoma, USA (477 km away)
- Table Rock Lake — Missouri, USA (878 km away)
- White River (Bull Shoals) — Arkansas, USA (902 km away)