San Juan River Fly Fishing Report - June 7, 2026
SAN JUAN RIVER
ReportJUN 8 — 15, 2026
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Flow
—CFS
🌡️
Water Temp
—
☀️
Weather
54–90°F
Partly Cloudy
💧
Clarity
Clear
Check post-storm
USGS gauge data is currently unavailable; local guide reports indicate flows stabilizing in the 375–800 cfs range following a recent bump, with slightly off-color water improving daily. Fish are feeding aggressively below the surface — think bigger, brighter, and heavier to get down to them.
What's Working — Hot Flies
Wiggly Worm (TBH) #8
#8
Slush Egg Apricot #14
#14
Egan's Frenchie Chironomid #10
#10
Black Zebra Midge (TBH) #20
#20
Tungsten Rainbow Warrior - Extra Heavy #14
#14
Tungsten Split Case Nymph - PMD #20
#20
Egan's Thread Frenchie Jig - Olive #12
#12
Coffey's CH Sparkle Minnow Sculpin #6
#6
Corn-fed Caddis (CDC) Tan #20
#20
Parachute - Blue Wing Olive #22
#22
Bionic Ant 2.0 - Black #16
#16
Jorgensen's Zola Bug Purple #14
#14
Hatch Chart
| Insect | Size | Activity | Prime Time |
|---|---|---|---|
| Midge (Chironomidae) — black, red, olive | #18–22 | Heavy / All Day | All day; peak 11:30 AM–2:00 PM |
| Midge Clusters (surface) | #18–20 | Strong — fish rising to clusters in flat tailouts | Midday |
| Pale Morning Dun (PMD) — building | #16–18 | Emerging / Building | Morning to early afternoon as water warms |
| Caddis (Hydropsyche) — lower river | #14–16 | Moderate | Afternoon into evening |
| Blue-Winged Olive (Baetis) | #18–22 | Sporadic — less likely under sunny forecast | Overcast afternoons only |
| Terrestrials (Ants, Beetles) | #12–16 | Building — early season terrestrial activity | Midday to afternoon along grassy banks |
Best Time Window
- Early Morning (7:00–10:00 AM) — Calmest winds, PMD emergers building, fish active in the seams before heat sets in
- Midday (11:30 AM–2:00 PM) — Peak midge hatch activity; fish rising to midge clusters in flat tailouts; best chironomid nymphing
- Late Afternoon/Evening (5:00–7:30 PM) — Caddis activity picks up on the lower river; terrestrial action along grassy banks; watch for any cloud cover to trigger BWO rises
Guide's Tip
From the benchWith flows stabilizing in the 375–800 cfs range and water clarity still slightly off, resist the urge to go small — size up and go bright. Run your indicator rig with extra weight and give yourself more depth than you think you need; the fish are hugging the bottom in the heavier current. Tuesday's forecast calls for south winds gusting to 40 mph, so plan to fish the protected inside bends and canyon walls where you can still get a clean drift. Early mornings (7–10 AM) before the wind builds are your best window for both quality drifts and the building PMD hatch.
Main Species
Rainbow Trout
Brown Trout
