Late summer · Weather & things to do
Arches in August
Arches cools off: highs slip to 92°F (33°C), from 97°F in July, with lows of 66°F (19°C) and about 1.2 in (31 mm) of rain.
Our comfort score puts it mid-table at 70/100, 8th of 12.
- Avg high
- 92°F (33°C)
- Avg low
- 66°F (19°C)
- Rain
- 1.2 in (31 mm)
- Humidity
- 37%
- Cloud cover
- 44%
- Daylight
- ~13 h 31 min
- Comfort score
- 70/100 · Good
What August feels like
Afternoons run hot at about 92°F (33°C), which leaves mornings and evenings as the time for walking.
Mornings start much cooler: lows average 66°F (19°C), about 15°C (26°F) below the afternoon high.
The air is dry, at about 37% humidity, which keeps warmth comfortable but dries skin and lips.
About 1.2 in (31 mm) of rain falls in a typical year's August.
Plan around August
August sits mid-table; the best months are April & May and September & October.
- Inside the wettest three-month stretch, July – September.
- Comfort improves from 59/100 in July to 70/100.
- Our Utah Mighty Five route recommends Mar – May, so August falls outside its suggested window.
What to pack for August
- Light, breathable clotheshighs average 92°F
- Sunscreen, sunglasses and a hathigh UV on clear days
- Refillable water bottleeasy to dehydrate in the heat
- A warm layer for eveningsnights drop to 66°F
- Lip balm and moisturizerdry air
- Comfortable walking shoesmost picks involve some walking
What to do in Arches in August
Afternoons run hot (92°F), so these picks mix early-start outdoor spots with cool indoor breaks.
Devils Garden Trail
Trail to Landscape Arch, with an optional primitive loop past several more arches.
Why now August scores 70/100 for comfort, good conditions for being outside.
Park Avenue Trail
Short walk between tall fins that look like a city skyline.
Why now Highs near 92°F and 1.2 in of monthly rain make this an easy outdoor pick.
Windows Section
North and South Windows and Turret Arch on short trails; Double Arch is next door.
Why now One to do outside while the weather is on your side.
Milt's Stop & Eat
Moab burger stand since 1954 with hand-cut fries and milkshakes.
Why now A break from 92°F afternoons.
Fiery Furnace
Maze of sandstone fins explored on a ranger-led hike or with a self-guided permit.
Why now Go early — afternoons average 92°F.
Nearby in August
- Canyonlands in August~32 mi · highs 91°F, 0.9 in rain · similar daytime temperatures, about as wet
- Capitol Reef in August~95 mi · highs 89°F, 1.0 in rain · 2°C (3°F) cooler by day, about as wet
- Aspen in August~152 mi · highs 76°F, 1.8 in rain · 9°C (16°F) cooler by day, about as wet
- Bryce Canyon in August~161 mi · highs 79°F, 1.3 in rain · 7°C (13°F) cooler by day, about as wet
NASA POWER 2001–2025 monthly averages on a ~50 km grid, temperatures adjusted from the grid cell's ~1,819 m to Arches's ~1,428 m elevation (standard lapse rate). Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Arches in August: quick answers
Is August a good time to visit Arches?
It's middling, scoring 70/100. The best months are April & May and September & October, at up to 98. Expect highs of 92°F (33°C) and 1.2 in (31 mm) of rain. Our Utah Mighty Five route recommends Mar – May, so August is outside its suggested window.
How hot is Arches in August?
Average highs are 92°F (33°C) and average lows 66°F (19°C), making it the 2nd-warmest month by daytime highs.
Does it rain a lot in Arches in August?
Not much: about 1.2 in (31 mm) of rain falls across August on average, the 3rd-wettest month of the year. The annual total is about 11.9 in (302 mm).
What should I pack for Arches in August?
Bring light, breathable clothes (highs average 92°F), sunscreen, sunglasses and a hat (high UV on clear days), refillable water bottle (easy to dehydrate in the heat), a warm layer for evenings (nights drop to 66°F) and lip balm and moisturizer (dry air).
Planning Arches in August?
Plan it together in TripsCircle: one itinerary, one shared packing list and costs split as you go.