Desolation Canyon, Utah
Desolation Canyon Weather & Best Time to Raft
Desolation Canyon cuts 84 miles through a remote stretch of Utah, where the Green River runs free between mile-high walls. The best time to raft it depends on the experience you want.
- Choose June for the biggest and coldest snowmelt water and the most energetic rapids of the season, keeping in mind cooler mornings on the river.
- Choose July for peak desert heat, the warmest swimming water and the heart of the family season.
- Choose August for hot days, warm water for daily swimming and dramatic monsoon skies.
There is no single month that is best for everyone. Early-June Desolation and late-August Desolation can feel like two different rivers, and both run the same wild 84 miles of the
Green River through one of the most remote corridors in the West. Below, you can compare monthly weather, river conditions and water temperatures, and find the best time for your group.
Explore Desolation Canyon Weather & Season
Best Month to Raft Desolation Canyon: Air Temps & Precip
The best time to raft Desolation Canyon depends on the experience that sounds best to you: the most energetic snowmelt water, the warmest swimming or long sandy-beach days in the heart of summer.
| MONTH | AVG HIGH / LOW (°F) | RIVER WATER | AVG MONTHLY PRECIPITATION (INCHES) | WHAT IT FEELS LIKE | WHY CHOOSE IT |
|---|---|---|---|---|---|
| JUNE | 98° / 58° | Coldest, peak runoff | 0.1 | Hot dry days against the season's biggest coldest snowmelt water | More current and the most energetic rapids, still friendly Class I-III |
| JULY | 100° / 62° | Warming | 1.2 | Peak desert heat, warm swimming water and possible afternoon monsoon storms | The peak family window, warm-water swimmers and sandy-beach days |
| AUGUST | 99° / 61° | Warm | 0.8 | Hot days, warm water for daily swimming and dramatic monsoon skies | Families, warm swimming, beach play and cooling off in the river |
Why Desolation Canyon Water Levels Change
The Green River that carries you through Desolation Canyon is a combination of water from Flaming Gorge Reservoir, and free-flowing snowmelt rivers contributing to the flow from mountains far upstream. When that snowpack melts in late spring, the river swells, runs colder and faster, and the whitewater builds toward its peak in June.
By midsummer, the snowmelt has mostly run its course. The river usually drops, the water warms, and the dry desert heat takes over the days. So an early-June trip and a late-August trip can feel like two different rivers, though both stay in friendly Class I to III water that keeps the canyon family-friendly all season.
Unlike in
Cataract Canyon, where the size of waves in rapids vary greatly depending on river volume, Desolation Canyon trips do not swap boats by flow. Western River runs the same relaxed craft all season, so how you ride is your choice rather than the river's.
Oar Boat
Your guide rows a stable, comfortable raft while you take in the canyon and hang on through the rapids. The most relaxed way down the river and the default for most families.
Inflatable Kayak
A one or two-person "duckie" available throughout the trip. Steering and power are yours, the most hands-on and lively way to follow the oar boats through each rapid.
The Best Weather Forecast to Check
Desolation Canyon has no town inside it, so no single forecast covers the whole corridor. The most useful general references are Moab, Utah, where your trip begins and ends, and Price, Utah, near the northern end of the canyon.
Treat the forecast as a general guide. Your expedition spans 84 miles of roadless canyon, where the floor can run hotter on still summer afternoons and fast-moving storms may pass through that a town forecast misses. Pack for a range, and trust your guides, who monitor conditions and adjust camp and timing as needed.
What Each Month Feels Like in Desolation Canyon
SUMMER
June: Peak High Water
June opens the season and usually brings the Green at its biggest and coldest after gathering the winter's snowmelt. Highs climb toward the upper 90s and the days turn dry, while the cold water is a welcome contrast to the building desert heat. This is the window for the most energetic runs through the canyon's named rapids, and cool mornings on the bigger waves are a good reason to keep your rain suit handy.
Choose June for:
More current and bigger waves while staying in friendly Class I to III water.
SUMMER
July & August: Hot Days, Warm Water
By July the heat settles in, with highs around 100°F and warm nights in the low 60s. The snowmelt fades, the river drops and warms into ideal swimming water, and the canyon becomes a place you cool off in all day long. This is also monsoon season, when dramatic afternoon thunderstorms can roll through and turn dry side canyons into waterfalls. Hot days, warm water and long sandy beaches make midsummer the peak family and kids season.
Choose July or August for:
Warm swimming water, beach play and the strongest family travel window.
Pick Your Month to Raft Desolation Canyon
Every month runs the same wild 84 miles of Green River through one of the most remote corridors in the West.
Questions about which month fits your group? Call (801) 459-3525 and talk to someone who has been there.
Green River Water Temperature in Desolation Canyon
Unlike the Grand Canyon far downstream, where the Colorado is released cold from the base of a dam, the Green River through Desolation Canyon is free-flowing. It is fed by mountain snowmelt and warmed by the sun as it travels, so its temperature follows the season rather than a dam's release schedule.
The water runs coldest during high water in June, when fresh snowmelt is pouring down from upstream, and it warms steadily as summer flows drop. Across the rafting season the Green averages roughly 60°F to 75°F, coldest at June high water. By midsummer the river is warm enough that most guests swim every day, off the boats, off the beaches and at cool tributary stops along the way.
Western River recommends keeping a two-piece rain suit handy in your day-use dry bag, especially early season and in the mornings, to shield against cool water and wind. It can help keep you more comfortable in the rapids on cooler June mornings when the water is coldest.
Afternoon Thunderstorms and Flash Floods: What Rafters Should Know
From roughly July into August, the Southwest monsoon brings moisture into eastern Utah, and the canyon can see sudden afternoon and evening thunderstorms. They are often brief but dramatic: dark skies, a burst of rain and wind, then waterfalls appearing on canyon walls that were bone-dry an hour earlier. June is typically the driest month. The storms can also produce flash flooding, which in canyon country tends to travel down side drainages rather than the main river channel.
Western River guides are experienced in reading desert weather and managing it. They monitor conditions continuously, position camps with the weather in mind and keep guests clear of exposed side canyons when a storm threatens.
Powell Named It in 1869
In 1869 John Wesley Powell led the first documented expedition down the Green River, and it was here that he gave the canyon its name, struck by its stark and barren walls. His party ran this stretch in the heart of summer, the same monsoon window today's rafters travel. More than 150 years later, the corridor Powell charted remains roadless and remote, its rapids friendly and its skies among the clearest anywhere.
Adventure with confidence
Common Weather Questions
What is the best time to raft Desolation Canyon?
It depends on what you want. June brings cooler mornings, higher and colder snowmelt water and the most energetic rapids of the season. July and August are the hottest months, with desert highs near 100°F, the warmest Green River water for swimming and long sandy-beach days that make them the peak family window. Because this is a Class I to III canyon, every month stays family-friendly.
Is early or late season better for Desolation Canyon?
Early season (June) gives you the highest and coldest snowmelt water and the most energetic rapids. Later in the season (July and August) trades that for hotter days, warmer swimming water and the relaxed, beach-camping pace that suits families best. If you want more water, choose June; if you want warmth and swimming, choose July or August.
When is the Desolation Canyon rafting season?
Western River runs Desolation Canyon from June through August. It is a 5-day trip, beginning and ending in Moab, with a scenic flight from the Moab airport to the remote river put-in. The minimum age is 5, which makes it one of Western's most family-friendly expeditions.
How far in advance should I book?
Earlier than you might expect. Western River runs a limited number of permitted departures each season, so popular dates fill early, especially the family weeks of July and August.
How hot does Desolation Canyon get in summer?
Daytime highs in the canyon reach the upper 90° to around 100°F in July, the hottest month, with August close behind. The dry desert air makes that heat more manageable than the same temperature would feel in humidity, and the Green River is always right there to cool off in. Nights are often 20 to 30 degrees cooler.
How cold is the Green River water?
The Green is free-flowing and snowmelt-fed, so it runs coolest during high water in June and warms as summer flows drop. Across the season the water averages roughly 60°F to 75°F. Western River recommends keeping a two-piece rain suit in your day-use dry bag for cool water and wind, especially in the mornings.
Does it rain, and does it get cold at night?
The canyon is dry overall, but summer afternoons can bring sudden thunderstorms during the Southwest monsoon, roughly July into August. June is typically the driest month. Nights can be quite a bit cooler than daytime temperatures, often 20 to 30 degrees cooler.
What should I wear for the weather?
Quick-dry clothing, sun protection (a brimmed hat, UV-protective long sleeves, sunscreen), and layers for cool mornings and evenings. A two-piece rain suit is strongly recommended to block cool water and wind on the river.
Still curious to learn more? Contact us.
Desolation Canyon Reviews
"A Solo Trip End of June"
★★★★★
I went as a solo on a 5 day Desolation Canyon trip end of June this year. I can't think of anything Western River Expeditions could have done different or better. Everything from the plane ride, all the excellent food, top notch and brand new equipment, and my guides were the best.
Christina Craig – Google
"Magnificent and Ever-Changing"
★★★★★
What an amazingly wonderful experience. Our guides were technically skilled, phenomenal chefs, knowledgeable about all things along the Green River, and hostesses who made us all feel like family.
Jocelyn M. – Yelp
"High Marks on the Green River"
★★★★★
High marks for our experience through Desolation Canyon on the Green River. All five guides were resourceful, skilled and friendly. The meals they prepared far exceeded our expectations.
Davis Baltz – TripAdvisor
★★★★★
360+ REVIEWS
★★★★★
800+ REVIEWS
★★★★★
1K+ REVIEWS
★★★★★
80+ REVIEWS
Choosing Your Desolation Canyon Trip
Whichever month you choose, every Desolation departure delivers the same wild 84 miles of Green River through one of the most remote corridors in the West. The primary decision is simply: high water in June or warm swimming water in July and August.
The Green River through ancient, winding canyons, milder rapids, broad sandy beaches, rich history, and a stunning scenic flight to the river's edge.
- Begins: Moab, Utah
- Best for: Families
- Rapids: 60+ Class I-III
- Ages: 5+
Request Your Free Trip Catalog
Explore our complete collection of rafting adventures across Utah, the Grand Canyon, Idaho and Oregon. This full-color catalog includes detailed trip overviews, sample itineraries, maps and planning guidance.
