What flies are hatching on the San Juan River right now?

Current and seasonal hatches on the San Juan River include Caddis, Pale Morning Dun, Green Drake. Use the AI Hatch Advisor on this page for a live, temperature-aware recommendation.

What's the current flow on the San Juan River?

The San Juan River is running at 15.5 CFS at the Pagosa Springs gauge. Readings update every 15 minutes from the USGS Water Services API.

Is the San Juan River fishable today?

San Juan River is outside its fishable window right now. Flow is 15.5 CFS at the Pagosa Springs gauge. Check back when conditions return to the normal range.

San Juan River Fly Fishing Conditions

Live Conditions

San Juan River — Pagosa Springs

Unfishable

15.5CFS

Discharge

3.66ft

Gauge Height

—

Water Temp

Updated 1 hr agoView on USGS ↗

7-Day Flow

→ Stable

RisingFallingStable

24-Hr Pressure

23.15 inHg · → High/stable

Falling (good)RisingHigh/stable

Local Weather

55°FClear sky

Wind 2 mph23.15 inHg Low & stable

Tough conditions — fish deep

Today

☁️

Overcast

70° / 53°

Tomorrow

☁️

Overcast

77° / 50°

Wed

☁️

Overcast

76° / 51°

Thu

☁️

Overcast

80° / 53°

Cold front incoming — go deep with nymphs, surface activity likely slow.

Weather by Open-Meteo · No API key · Updated every 30 min

What should I fish today?

⚡ AI

AI-powered recommendation using today's live flow, temperature, and hatch data.

2

Time of Day

Using: 15.5 CFS · BWOs returning

What should I pack?

Rod, flies, tippet, and safety gear specific to today's San Juan River conditions.

🪰 Hatch Calendar

San Juan River · September · Early Fall

Full calendar →

Showing typical dates — water temperature data unavailable for live hatch predictions.

Select month

JanDec

BWOs returning (size 18-20). Caddis possible. Excellent fall fishing — Pagosa Springs in September is mild, the river is clear, and browns are active. One of Southwest Colorado's best fall options.

Blue-Winged OliveCaddis

River Map

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USGS Gauge (click for site ID)Fishing Access / SectionScroll to zoom disabled — use map controls

About San Juan River

The Colorado section of the San Juan near Pagosa Springs is a legitimate freestone fishery that most anglers blow past on their way to New Mexico. Wild rainbow and brown trout right through town, strong summer caddis and terrestrial hatches, and easy public access along the Riverwalk. The East and West Forks above Pagosa add alpine headwater options.

CaddisPale Morning DunGreen DrakeGolden StoneflyBlue-Winged OliveTerrestrials

Learn More

Guides to help you fish San Juan River with more confidence.