The Pagosa Outside River Desk

The live flow comes from the USGS San Juan River gauge in Pagosa Springs. Recent government readings are provisional and carry their original timestamp.

The gauge supplies the default recommendation. The current PO River Crew operating status is what determines which activities appear as running.

Small changes matter greatly at tubing levels, while spring rafting is easier to understand in hundreds of CFS. The two-part scale makes both readable on one dial.

River readings refresh hourly, weather every three hours and SNOTEL snowpack daily. If a feed pauses, the last successful reading stays visible with its timestamp

The temperature reading comes from the USGS San Juan River below CR 119 station. The River Desk shows the latest reading in Fahrenheit and Celsius along with the recent daily range.

No. The chart labels the official National Weather Service forecast separately from measured USGS observations. Automated text summarizes those published inputs without inventing a peak flow or date

The Current Conditions section above shows the latest measured river flow, 24-hour trend, historical average and water temperature. It also places the current reading within Pagosa’s general rafting and tubing ranges. These readings update automatically from official government gauges, while weather, debris, water temperature and changing river features can also influence the day’s conditions and activity availability.

The River Desk’s short-term outlook provides the most likely flow range for the next seven to ten days. It combines the official Colorado Basin River Forecast Center forecast with recent river movement and the National Weather Service forecast. During May and June, remaining mountain snow and headwater temperatures are also considered. During July and August, rainfall becomes the more important source of potential river changes. The result is a likely range rather than a guaranteed daily flow.

Many people enjoy Pagosa Springs tubing between approximately 90 and 180 CFS. Flows from 30 to 90 CFS are lower and shallower, while the 180s through the upper 200s produce a faster, livelier trip. Tubing may continue between 300 and 400 CFS during hot summer weather, but that is rowdy high-water tubing and daily operating decisions depend on water temperature and river conditions. Above approximately 400 CFS, the river generally shifts toward rafting.

Different Pagosa Springs rafting trips require different amounts of water. Splash & Dash can sometimes operate down to 300 CFS, Mesa Canyon generally needs at least 600 CFS and the West Fork requires approximately 800 CFS. These are general flow guidelines rather than automatic operating rules. Water temperature, debris, river access and current channel conditions also factor into the Pagosa Outside River Crew’s decisions.

Learn more about Splash & Dash, Mesa Canyon and the West Fork.

Pagosa Springs rafting season usually runs during May and June, when melting mountain snow supplies the San Juan River. Peak runoff often occurs from mid-May into early June, followed by gradually decreasing flows. The exact timing changes every year based on winter snowpack, spring temperatures and precipitation. A lower-snow year may produce an earlier, shorter rafting season followed by an earlier transition into tubing.

Pagosa Springs tubing usually begins when spring runoff drops consistently below 400 CFS. This often happens in late June or early July, although warm weather and a lower snowpack can move the transition earlier. Tubing commonly continues through July and August, with summer monsoons often producing increases in flow. The Current Conditions section above provides the best indication of where the river sits within the tubing range.

Yes. As flows decrease, the river becomes shallower and more rocks appear. Lower-water tubing can include slower sections, careful route-finding and occasional walking. Pagosa Outside may pause its shuttled Deluxe Tubing Trip when the river becomes too low for the complete route, while DIY Tube Rentals may still work for the shorter downtown walk-down route. Current availability is shown on each product calendar.

The live water-temperature reading appears in the Current Conditions section above. The San Juan is generally coldest during spring snowmelt and gradually warms through the summer. Water temperature can also change noticeably during the day, especially when flows are low. The River Desk uses the USGS temperature station near County Road 119, while actual temperatures can vary somewhat between the headwaters, downtown Pagosa Springs and downstream locations.

CFS means cubic feet per second. It measures how much water passes the gauge every second. One CFS equals approximately 7.5 gallons per second, so a reading of 250 CFS represents roughly 1,870 gallons moving past the gauge each second. CFS describes water volume, but it does not tell the entire river story. Channel shape, gradient, water temperature and recent river changes all affect what a particular flow feels like.

Mountain snowpack stores the water that produces most of Pagosa’s spring runoff. A higher percentage of normal snowpack generally supports a stronger or longer rafting season. A lower-snow year often concentrates rafting flows into a shorter spring window, but it can also produce an earlier and potentially longer tubing season. Spring temperatures determine how quickly the stored snow reaches the river, which is why the River Desk tracks both headwater snow and mountain weather.

Summer rain can create temporary rises in the San Juan River, but the location and coverage of the storm matter. A widespread storm over the East Fork, West Fork and other headwater drainages can affect the Pagosa gauge more than a short cloudburst directly over town. These increases may arrive several hours after the rain and can fade quickly. That is why the River Desk considers recent gauge movement and the broader weather forecast rather than relying only on the chance of rain in downtown Pagosa.

The USGS gauge measures water that has already reached Pagosa Springs. The official river forecast estimates what may arrive later based on weather, upstream conditions and hydrologic models. Forecast values can change as new observations become available, particularly during rapid snowmelt or summer thunderstorms. The River Desk keeps measured flow and forecast flow visually separate so visitors can distinguish what the river is doing now from what it may do next.