Moab weather in May
May in Moab: warm, dry — an excellent time to visit.
Updated September 2026 · climate normals from ERA5 reanalysis
#4 of 12 months in Moab · #523 of 1413 destinations to visit in May · comfort 84/100 (tier A)
- Days
- 27°C
- Nights
- 12°C
- Wet days
- 3
- Sun
- 12.8 h
- Humidity
- 28%
- Daylight
- 14 h

Traveller notes on Moab in May
Notes from nearby Arches National Park (17 km away)
Moab doesn't have its own notes for May yet — these are about Arches National Park, close enough to share the season.
May is the first genuinely comfortable month of the Arches year and, for exactly that reason, one of its busiest - milder than June, which is when the desert heat arrives. The timed-entry system is the practical constraint, and the forum's way around it is precise: no reservation is needed before 7am or after 4pm, so an early entry gets you into the park and ahead of the crowd at once. Delicate Arch before 8am is the standing recommendation, for the parking as much as the sun. The one weekend to avoid is Memorial Day, when Moab fills and room rates follow. Counter-intuitively, late afternoon is the warmest part of a red-rock day, because the stone has been absorbing sun since morning. The record: 24.5C days, 9.1C nights, humidity 27 percent, 2.4 precipitation days and 12.8 hours of sun.
Other months in Moab
Moab-forum threads on a January visit describe crowds as genuinely essentially nonexistent, one visitor naming only about fourteen other people on the Delicate Arch hike compared with hundreds during peak season. Regulars call microspikes genuinely required at the Devils Garden trailhead, several posters naming these as removable once you reach open slickrock further along the trail. Posters call Dead Horse Point and Canyonlands genuinely deserted this time of year, several regulars naming this a real draw for anyone wanting the views without the usual traffic. Regulars call some hotel and restaurant closures genuinely standard in January, several threads naming lower prices as the real tradeoff worth planning around. Posters recommend checking which businesses are actually open before a January trip, several regulars calling this standard given how much winter closures vary. The record: 5.8C days, -4.7C nights, 14.7mm across under 3 days and 66 percent humidity.
Moab-forum threads on a September visit call this genuinely one of the most popular months, posters describing highs in the eighties and lows in the fifties Fahrenheit as considerably more comfortable than the desert's summer extremes. Regulars call sunrise arriving around six-thirty to seven in September, a real advantage for anyone wanting an early start without the brutal pre-dawn heat of midsummer. Posters recommend the Fisher Towers section of the Colorado River for a scenic float with low rapids, both full and half-day trips considered strong September options. Regulars call Arches' timed entry permit essential to book ahead, entering before seven or after four the only way around it otherwise. Posters recommend booking a Moab-area campsite as backup, Arches' own sites filling by seven-thirty most September mornings. The record: 32.1C days feeling like 34C, 15.7C nights, 13mm across over 2 days and 27 percent humidity.
Moab-forum threads on the real deal with July weather describe average highs as sitting around ninety-nine degrees Fahrenheit, posters calling this genuinely brutal for midday activity. Regulars recommend doing hikes early and late in the day, spending the actual midday hours in a hotel pool or somewhere air-conditioned in town. Posters call flash flood risk genuinely high this time of year, seasonal storms rolling in off tropical moisture capable of turning a dry wash dangerous within minutes. Regulars recommend checking current forecasts and avoiding narrow canyons entirely when a storm system is nearby. Posters describe the desert landscape as still spectacular in July for anyone willing to plan around the heat and storm risk both. Regulars call real sun protection and far more water than feels necessary standing advice regardless of activity. The record: 38.2C days feeling like 37C, 22.4C nights, a scant 2.6 days of measurable precipitation and 24 percent humidity.
Moab-forum threads on a February visit are consistent this can genuinely swing both ways within the same day, freezing mornings giving way to sunny, comfortable afternoons in the low fifties Fahrenheit on a good stretch. Posters call a light dusting entirely possible in shaded spots and higher terrain, though it rarely lingers long at the lower elevations most trails sit at. Regulars recommend real traction devices for icy sections regardless of how clear the trailhead looks, ice in shaded canyon stretches a standing hazard this time of year. Posters recommend layering heavily and adjusting through the day rather than committing to one outfit. Regulars call the primary park roads reliably open, though some backcountry routes stay closed through winter. Posters describe February crowds as genuinely thin, popular viewpoints often nearly empty compared to peak season. The record: 9.9C days feeling like 6C, -2.2C nights, a notably high 3.6cm of fresh accumulation and 57 percent humidity.
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Moab climate normals — May
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Moab in May
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdsSpring desert season, Memorial Day weekend(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Moab's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherMoab's best weather comes in March, April and October — separate windows, not one continuous season.
Best weatherFair weatherToughest weather
What's on in Moab in May
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Season
Spring desert season
15 Mar – 25 MayTrail seasonCrowdedThe short window when the slickrock is walkable all day and the rivers are running, which is why every mountain biker, climber and rafter in the west turns up at once. Arches queues at the entrance station by eight.
- Holiday
Memorial Day weekend
23–25 MayNational holidayCrowdedBook earlyMemorial Day, the last Monday of May, opens the summer travel season: over the long weekend campsites and lodging book out, roads are slow, and parking at the most popular spots fills early in the day. Source ↗
Nearby, and something's on
Within 300 km of Moab — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Moab?
Moab in May — FAQ
- Is May a good time to visit Moab?
- May in Moab: warm, dry — an excellent time to visit. It ranks #4 of 12 months for Moab on SeasonMap's comfort score (84/100).
- What is the weather like in Moab in May?
- In May, Moab averages a daily high of 27.4°C and a low of 12.1°C, with about 11.6 mm of rain over roughly 2.5 rainy days.
- What is the air quality in Moab in May?
- Moab has a mean US Air Quality Index of about 58 in May.
Within 300 km: Mesa Verde National Park's Cliff dwelling tour season around 1 May – 20 Oct, and Bryce Canyon National Park's Milky Way season around 1 May – 30 Sep.