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River guide · Texas

Fly Fishing the San Marcos River

Fed by 250 million gallons daily from the Edwards Aquifer, the San Marcos runs a crystal-clear 70°F year-round, one of Texas's finest spring creeks for Guadalupe bass and a rare chance to throw dry flies in January.

When to fish

Year-round

Best months: year-round

  • Best

Caddis and small mayflies: March–April. Terrestrials — hoppers, ants, beetles: June–September.

Today's conditions

Where to fish

Along the San Marcos River

Rio Vista Park and City Park in San Marcos provide wading and kayak launch access near the Spring Lake headwaters; Martindale Park and Pecan Park offer the best mid-river wading; Highway 80 crossings provide additional wade-in points downstream.

The water

Spring creek

Key hatches

  • Caddis and small mayflies
  • Dragonfly / damselfly patterns
  • Terrestrials
  • Woolly Buggers / crayfish patterns
Hatch calendar

Conditions

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6-day forecast

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Forecast from the National Weather Service ↗

Key hatches

  • Caddis and small mayflies (March–April)
  • Dragonfly / damselfly patterns (May–August)
  • Terrestrials — hoppers, ants, beetles (June–September)
  • Woolly Buggers / crayfish patterns (fall–winter)

Fly shops near the San Marcos River

Shops and guides that fish the San Marcos River. See all 33 Texas shops →

From The Fly Bench

Tie the flies that work on the San Marcos River

Step-by-step tying recipes & videos for these patterns.

Browse patterns at The Fly Bench
Gear up

Gear up on the San Marcos River

Everything you need before the next trip — rods, lines, leaders, and fly-tying materials.

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Flies that work

The flies that work on the San Marcos River

Find the most effective patterns for where you're fishing — and learn to tie them yourself, step by step.

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