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San Juan River Fishing Reports

The latest from the Fisheads guides

We spend every day on this river, and our fishing reports reflect what we’re seeing right outside our doorstep. From fly pattern suggestions to relevant techniques, our updates help you plan a great day on the water. If you're thinking about a trip to the San Juan, take a moment to explore our lodge.

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Weekly Fishing Report August 31, 2026

August 31, 2026

The weather has finally cooled off, and we’re easing back into the 80s. As the water clears more and more, we’re noticing a few trout heads breaking the surface. It’s time to grab those dry fly boxes because we expect that cloud cover this week will help We’ve seen some, but…

Weekly Fishing Report August 24, 2026

August 24, 2026

Well, the 90-degree temps continued into this week after all, but the forecast is for temps to finally fall back down into the low and mid-80s at the end of the week. We’re starting to notice the water clearing up a bit, which has us hopeful for some end-of-summer dry fly…

Weekly Fishing Report August 17, 2026

August 17, 2026

The first part of this week is looking pretty hot, but we’ll be cooling off in the second half. The drought hasn’t affected the fishing, as there’s plenty of cold water coming out of Navajo Dam. The fish remain focused mainly on subsurface midges and Baetis. The Baetis tend…

Weekly Fishing Report August 10, 2026

August 10, 2026

The conditions and tactics from the last few weeks have not changed for this week. We have plenty of water and flows. The fish are focused mainly on the sub-surface action. We’ve had an uptick in reports from guides having success on streamers, while dry fly fishing remains.…

Weekly Fishing Report August 3, 2026

August 3, 2026

The fishing hasn’t changed much since last week’s report. Flows are around 700 cfs, and we expect them to increase by around another 100 cfs during the week. This shouldn’t be too noticeable to fish or anglers, so stick to subsurface mayfly and midge patterns. Olive and gray…

Weekly Fishing Report July 27, 2026

July 27, 2026

The ant fall wrapped up last week, and now the action is primarily subsurface. If you still want to fish dries, you may still find a few fish eating hoppers, ants, and beetles on the surface. The afternoons can still produce BWO hatches that fish well with a small Parachute…