Paddle Report

San Juan River river run

Utah, USA San Juan River Class III+
Today high
--
Tonight low
--
Current flow
--
% of normal
36%
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Linked streamgauge
-- cfs
Gauge height
--
Streamflow history loading…
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San Juan River -- Utah paddle run
San Juan River Utah · San Juan River
About this run

San Juan River

The San Juan River, located in southeastern Utah, is a popular destination for whitewater enthusiasts. The ideal streamflow range for the San Juan River is between 500 and 2000 cubic feet per second (cfs), with the best time to run the river being in the spring when snowmelt increases the streamflow. The river has a class rating of II-III, making it an intermediate level run suitable for those with some whitewater experience.

The San Juan River is divided into several segments, with the most popular being the 26-mile stretch between Sand Island and Mexican Hat. This segment includes several notable rapids, including Government Rapid, Eight Foot Rapid, and the infamous Big Drop 2, which is a class III+ rapid that requires careful navigation.

In addition to the rapids, the San Juan River also features stunning scenery and historical sites, such as the 1,000-year-old ruins of the Anasazi people. However, it is important to note that there are specific regulations in place for the San Juan River area, including a permit requirement for all overnight trips and restrictions on camping locations and group sizes.

Overall, the San Juan River is a must-visit destination for whitewater enthusiasts looking for a challenging yet accessible run with beautiful scenery and cultural significance.
StateUtah
RiverSan Juan River
ClassIII+
Elevation4,067 ft
Current flow--
Percent of normal36%
StreamgageUSGS 09379500
Latitude37.2633°
Longitude-109.5967°
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.