Moab Weather by Month: Temperatures and the Best Time to Visit

The best month depends on what you want to do. April, May, September and October offer comfortable weather for hiking and exploring the parks. Summer brings hotter days and is the ideal season to spend time on the Colorado River.

For the 4-Day Southwest Sampler, plan for June through August. The package combines Arches National Park, an off-road safari, two hotel nights and an overnight river trip. Other river trips have their own departure schedules, so check dates before building your vacation around a particular month.

Both seasons offer comfortable weather for hiking and exploring the parks. Spring brings snow on the La Sal Mountains and a warming desert, while early-season river water is cold. Fall brings cooler mornings and autumn color along the river, with water temperatures gradually dropping as the season progresses.

Both are popular travel seasons. If the Southwest Sampler is the trip you want, plan for its June-through-August departures.

The Southwest Sampler runs June through August. June brings long daylight hours and can still have cool river water from snowmelt. July and August usually bring warmer water, hotter afternoons and the possibility of monsoon storms.

Choose dates that fit your group’s schedule and prepare for summer sun. The combination of time in the parks, an off-road safari and an overnight river trip gives you several ways to experience Moab in one four-day vacation.

Summer afternoons can reach or exceed 100°F, especially in July and August. Low humidity does not eliminate the effects of heat, and exposed slickrock offers little shade.

Plan hikes for early morning, drink water regularly and take breaks from the sun. River time can be refreshing, but sun protection and hydration still matter. Nights and mornings are generally cooler with temperatures often in the 60's and 70's.

Late-summer monsoon moisture can bring brief, intense thunderstorms, most often from July into September. Rain can cause flash flooding in narrow canyons and dry washes, even when the storm is some distance away. Check forecasts before heading out and keep a rain layer handy.

Expect cooler temperatures after sunset. Summer nights can stay warm, spring and fall nights often need an extra layer, and winter nights commonly drop below freezing. Pack for the overnight low as well as the afternoon high.

The Colorado River near Moab is generally colder during spring runoff and warmer later in summer. Water temperature varies with snowmelt, river flow and recent weather, so a hot afternoon does not guarantee warm water.

On the Southwest Sampler, your guides point out suitable places to swim or float during calmer stretches. Bring the clothing and rain gear on your trip packing list, even for a summer departure.

Spring and fall generally offer the most comfortable hiking weather. In summer, start early and choose walks that fit the heat, distance and abilities of your group. Exposed sandstone can be hot, and shade is limited.

Carry drinking water, use sun protection and check park forecasts and alerts. Canyonlands’ Island in the Sky sits higher than Moab, so conditions can differ from town. In winter, watch for snow and ice on trails and shaded rock.

Bring a brimmed hat, sunglasses, sunscreen and lightweight clothing that covers your skin. Add a warm layer for cool mornings and evenings, sturdy footwear with traction, and quick-drying clothing for river days.

Follow the packing list for your booked trip, including its rain-gear recommendations. A two-piece rain suit helps with wind, rain and cooler conditions on the water. Check the forecast before leaving home, then pack for both the daytime high and the overnight low.