Paddle Report

San Juan River river run

Colorado/Snoflo:/Feature, USA San Juan River Class II-III
Today high
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Tonight low
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Current flow
--
% of normal
31%
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Linked streamgauge
-- cfs
Gauge height
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San Juan River -- Colorado/Snoflo:/Feature paddle run
San Juan River Colorado/Snoflo:/Feature · San Juan River
About this run

San Juan River

The Whitewater River Run San Juan River, located in southwestern Colorado, is a popular destination for whitewater enthusiasts. The ideal streamflow range for this river is between 500 and 3,500 cfs, typically occurring in late May and early June. The river is rated as Class II-III, making it suitable for intermediate paddlers. The segment of the river between Sand Island and Mexican Hat, covering a distance of 26 miles, is often referred to as the "Lower San Juan" and is the most popular section for rafting and kayaking. This segment features numerous rapids, including the Four Foot Falls, Government Rapids, and the famous Slickhorn Canyon.

There are specific regulations that must be followed when visiting the San Juan River. All boaters must obtain a permit from the Bureau of Land Management, and commercial outfitters must be licensed and insured. Additionally, all boaters must comply with Leave No Trace principles and pack out all trash. Camping is only allowed in designated areas, and fires are prohibited except in established fire rings. These regulations help ensure the safety of visitors and protect the natural beauty of the area.

Overall, the Whitewater River Run San Juan River offers a thrilling and scenic whitewater experience for intermediate paddlers. Its ideal streamflow range, class rating, segment mileage, specific river rapids/obstacles, and specific regulations make it a must-visit destination for anyone interested in whitewater rafting or kayaking.
StateColorado/Snoflo:/Feature
RiverSan Juan River
ClassII-III
Elevation4,904 ft
Current flow--
Percent of normal31%
StreamgageUSGS 09372000
Latitude37.2693°
Longitude-109.3444°
Detailed forecast

Plan your run down to the hour

Same weather feed Snoflo's iOS app uses -- updated continuously from NOAA / yr.no. Watch the precipitation column on the meteogram; rain ahead of a run typically lifts flows 12-48 hours later depending on the basin.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

5-day forecast table

Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks -- the upstream story that drives next week's flows.

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Regional flow

Regional streamflow levels

USGS streamgauges around San Juan River -- useful for spotting upstream pulses and gauging which tributary is contributing what.

Whitewater safety

Check the flow before you run
Use the linked-gauge card and Regional Flow panel above. Class ratings change with flow -- a Class III at low water can become Class IV+ at high water.
Know your skill ceiling
Pick runs comfortably below your ceiling. Cold-water and big-water runs raise the consequences of any mistake.
Wear the right gear
Helmet, PFD, drysuit / wetsuit when water is below 60°F. Throw bag, knife, and whistle on your person, not in the boat.
Scout, set safety, and run with a team
Scout new rapids on foot, set safety with throw bags above the consequence pool, and run with at least one other competent paddler.
Respect the river
Strainers, undercuts, low-head dams, and wood can kill at any class rating. When in doubt, portage.

Set push alerts in the Snoflo app

Save San Juan River as a favorite, set a discharge threshold (e.g. "alert me when flow hits 600 cfs"), and the iOS app pushes the moment the linked gauge crosses.

FAQ

About San Juan River

What's the optimal flow for San Juan River?

The optimal flow depends on the section and the craft. Check the Run Details panel for the linked gauge and current status.

How fresh is the cfs reading on this page?

The linked USGS streamgauge reports continuously (every 15 minutes); Snoflo refreshes throughout the day. Hover the streamflow sparkline to read individual datapoints.

What's the whitewater class?

See the Run Details panel for the class rating Snoflo tracks for this run. Class ratings change with flow -- a Class III at low water can become Class IV in high water.

Where do I put in / take out?

Tap Directions in the hero above to open driving directions to the put-in. For shuttle planning, check the Nearby Boat Launches panel and the river run operator's site.

Can I get alerts when flows hit the optimal range?

Yes -- alerts are managed in the Snoflo iOS app. Favorite this run, set a discharge threshold, and you'll get a push the moment the gauge crosses.

More river runs

Other runs near here

Snoflo-tracked paddle runs within driving distance of San Juan River.

Premium feature

Favorites and custom alerts are part of Snoflo Premium. Save runs, set discharge thresholds, and get push notifications when flows hit your window.

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Manage alerts in the Snoflo app

Custom push alerts are configured in the iOS app -- favorite this run, set a discharge threshold (e.g. "alert me at 600 cfs"), and you'll get a push the moment the gauge crosses.

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