Guadalupe River Trout Fishing Report

What Times of Year Are Best to Fish the Guadalupe River?

The Guadalupe River offers trout fishing opportunities year-round, but the best times to fish depend on factors like water temperature, stocking schedules, insect hatches, and river flow conditions. Each season presents different challenges and advantages, requiring anglers to adjust their approach accordingly.

Winter (December–March): Prime Trout Fishing Season

Winter is the peak season for trout fishing on the Guadalupe River, thanks to regular stocking by Texas Parks & Wildlife. From late November through early March, thousands of rainbow trout are introduced into the river, ensuring consistent fishing action. The water remains cold and oxygen-rich, particularly in the first several miles below Canyon Dam, which creates ideal conditions for trout survival and activity.

Trout are typically most active throughout the day, with nymphing being the most productive method. Small midges, pheasant tails, and San Juan worms fished under an indicator work well in deeper pools and riffles. On warmer winter days, hatches of blue-winged olives (BWOs) and midges trigger surface feeding activity, making dry fly fishing an exciting possibility.

The best places to fish during winter include areas closest to Canyon Dam, such as Rio Raft, Action Angler, and Guadalupe Park. These locations receive the heaviest stocking and provide the coldest, most oxygenated water, ensuring a higher concentration of trout.

Spring (April–May): Transition Season

As temperatures rise in the spring, trout behavior begins to change. The water starts warming, pushing fish into deeper, shaded areas where temperatures remain more stable. The fishing remains strong through April and early May, but by late spring, rising temperatures begin to stress the trout, particularly in the lower sections of the river.

During this transition period, trout tend to move into faster-moving water and deep pools, where oxygen levels are higher. Dry-dropper rigs become particularly effective, as hatches of caddisflies, BWOs, and stoneflies increase. Fishing is usually best in the early morning and late afternoon, when temperatures are cooler and trout are more willing to feed.

Spring fishing can still be productive, but anglers should start paying close attention to water temperatures. As levels climb above 68°F (20°C), trout become increasingly sluggish and difficult to catch.

Summer (June–August): Tough Conditions, but Not Impossible

Summer presents the greatest challenges for trout fishing on the Guadalupe River. Rising air temperatures lead to higher water temperatures, which can reduce oxygen levels and stress trout populations. The lower sections of the river often become too warm for trout survival, meaning most fish either move into deeper pools near the dam or do not survive the summer months.

Anglers who still wish to fish for trout during the summer must focus on early morning hours, when water temperatures are at their lowest. The best approach is fishing deep with streamers or weighted nymphs, as trout seek out cooler water at greater depths. Fishing in heavily shaded areas and targeting deep pools with consistent flow can also improve chances of success.

Conservation is especially important during summer. Catch-and-release fishing can be harmful if the water temperature is too high, as stressed trout have a lower survival rate after being handled. If temperatures exceed 68°F (20°C), it is best to avoid trout fishing altogether and consider targeting warmwater species like bass, which thrive in the warmer sections of the river.

Fall (September–November): Pre-Stocking Period

Fall is a transitional period for trout fishing on the Guadalupe River. With cooler temperatures returning, the river starts to become more hospitable for trout, but fishing opportunities remain limited due to the lack of new stockings until late November. By early fall, most of the stocked trout from the previous winter will not have survived the summer, leaving only holdover trout in deeper, colder pools near Canyon Dam.

Although fewer trout are present, fall offers an excellent opportunity to target larger, more experienced fish that have survived the summer. These trout tend to be more selective in their feeding habits, making it a great time to fish with streamers, woolly buggers, and crawfish patterns. Cooler weather also means anglers can scout the river and prepare for the upcoming peak season, identifying the best deep-water spots that will hold trout once stocking resumes.

While fall does not offer the same high fish densities as winter, it can still provide a rewarding experience for patient anglers, particularly those looking to catch larger, holdover trout before new stockings begin.