Blue Stream Fly Fishing
Fly Fishing Report for:

San Marcos River - San Marcos - Texas

Hatch Chart - Best Access/Spots - Local Fish - About

Water Flow Chart

Using Water Flow Charts & Weather Reports: Begin with our water flow charts to grasp stream velocity and volume – look for stable or rising trends to pinpoint ideal fishing times. Learn to interpret sudden spikes or drops, which can indicate potential challenges. Next, consult our weather reports to understand ambient conditions. Pairing the two, you can anticipate fish behavior, choose the right gear, and select the best fishing spots. Use these tools together for a holistic approach to your next fishing adventure.

In-Depth Weather

Directions To Location

Hatch Chart

Month Hatch Time of Day Recommended Fly Sizes Popular Fly Patterns
January Midges Midday 18-22 Griffith's Gnat, Zebra Midge
February Midges, Little Black Caddis Late afternoon 18-22, 14-18 Zebra Midge, Elk Hair Caddis
March Blue Winged Olive, Midges Midday 18-22, 14-18 Parachute Adams, Zebra Midge
April Blue Winged Olive, Caddis Afternoon to evening 14-18 Parachute Adams, Elk Hair Caddis
May Sulphurs, Caddis Evening 12-16 Elk Hair Caddis, Sulphur Dun
June Terrestrials All day 10-14 Hopper Patterns, Ant Patterns
July Terrestrials, Blue Winged Olive Morning to midday 14-18 Hopper Patterns, Parachute Adams
August Terrestrials, Tricos All Day 10-14, 18-24 Hopper Patterns, Trico Spinners
September Terrestrials, Tricos All Day 10-14, 18-24 Hopper Patterns, Trico Spinners
October Blue Winged Olive Afternoon to evening 14-18 Parachute Adams
November Midges Late afternoon 18-22 Zebra Midge
December Midges Midday 18-22 Griffith's Gnat, Zebra Midge

While we strive to ensure the precision of our hatch charts, some reflect broader river region insights. Through ongoing partnerships with local guides and fly shops, we’re committed to refining our data. Should you notice any inconsistencies or have feedback, we welcome you to reach out. 

Best Fishing Spots

The San Marcos River offers a variety of great locations for fly fishing due to its clear waters and abundant aquatic life. Here are some top spots:

  • Rio Vista Park: This spot is popular for its three man-made waterfalls which provide an ideal environment for bass.
  • John J. Stokes Sr. San Marcos River City Park: With a variety of fish species, including bass and sunfish, there is lots of fish to catch here.
  • Sewell Park: Located near Texas State University, its shores offer a serene spot to fly fish.
  • Children’s Park: Numerous shallow areas perfect for wading and fly fishing.
  • Five Mile Dam: This spot is known for its excellent catfish population.
  • Martindale Dam: Easily accessible water with superb conditions for fly fishing.

Tackle guidelines strictly prohibit use of lead weights and insist on artificial lures only, protecting this beautiful river environment for future anglers.

Best Access Points

San Marcos River in Texas is a picturesque and productive spot for fly fishing. Here are some of the best access points:

  • The City Park: Located in the heart of San Marcos, it allows anglers easy-to-reach spots with abundant fish.
  • Rio Vista Park: This park provides significant space for fly fishers, thanks to the three-tiered falls that serve as natural fish habitats.
  • Stokes Park: Located downstream of Rio Vista, it offers ideal conditions for fly fishing.
  • Five Mile Dam: Easy access and high fish population makes it a popular spot for seasoned and novice fly anglers.

Remember to take appropriate permissions as some spots might require fishing permits. Notably, certain stretches of San Marcos River are known for Guadalupe Bass, so gear up specifically if you’re targeting this species!

Local Fish

  • Largemouth Bass: This is a favorite for many anglers on the San Marcos River. They are found in a variety of environments within the river.
  • Smallmouth Bass: Although slightly smaller than the largemouth bass, they offer some of the most exciting action on the San Marcos River.
  • Guadalupe Bass: Known as the state fish of Texas, the Guadalupe Bass is a native species sought after by local anglers.
  • White Bass: This species can be found moving up the river during their spring spawning run.
  • Blue Catfish: These provides anglers a chance for a larger catch on the San Marcos River.
  • Channel Catfish: This common species is often targeted for its size and fight.
  • Rio Grande Cichlids: The San Marcos River is one of the few places in Texas where anglers can target this beautiful and unique fish.
  • Sunfish: A variety of sunfish species, including the Bluegill and Longear Sunfish, can be found in the San Marcos River.

About The River

Flowing beautifully through the City of San Marcos, Texas, the tranquil San Marcos River holds a rich history. Born over 200 million years ago from a natural, clear spring, it’s home to numerous endangered and threatened species, a living testament to our planet’s evolutionary history.

A historical highlight is the discovery of artifacts dating back to the Clovis culture, indicating the river being inhabited 13,000 years ago.

  • Guided by the river, the city flourished as a cotton industry hub in the 19th century.
  • Recreation has always been part of its charm – from canoeing and fishing to swimming and tubing, historically and today.
  • Recognizing its ecological importance, Texas State University maintains the Aquarena Springs Environmental Learning Centre on the riverbanks.

Amidst progress, the San Marcos River gracefully mirrors our delicate dance with nature.

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