Moab weather in August

In August, Moab sees average daytime highs of 89°F and overnight lows near 64°F, with 0.8 in of rain across 4.8 wet days and about 13.5 hours of daylight. It is the 2nd-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 90°F in the first days to 87°F by the end. The sky is clear or mostly clear about 63% of the time in August, and the air most often feels dry.

Daylight stretches from about 14 hours at the start of August to 12 h 54 min by month's end. Set against the rest of the year, August is Moab's 5th-clearest and 7th-windiest month. For the whole year in context, see Moab's year-round climate.

Daytime high
89°
2nd warmest
Overnight low
64°
11th coldest
Rainfall
0.8 in
4.8 wet days
Daylight
13 h 30 min
5:37 AM – 7:08 PM
Cloud cover
36%
5th clearest
Wind
5 mph
7th windiest
Solar energy
7.04 kWh/m²
Travel score
5.0
out of 10

Moab is city in and county seat of Grand County, Utah, United States.

Density
424/km²
people per km²
Founded
1878

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 90°F in the first days to 87°F by the end.

A typical August day in Moab reaches about 89°F in the afternoon and slips back to 64°F overnight — a 25°F spread between the day's warmth and the night's chill. On most days the high lands between 82°F and 95°F. Set against its neighbours, August runs about 3°F cooler than July and about 9°F warmer than September.

60°80°100°151015202531
Avg high (°F)Avg low (°F)
19166
29166
39066
49066
59065
69065
79065
89065
99065
109065
119065
128964
138964
148964
158964
168964
178964
188964
198964
208964
218964
228863
238863
248863
258863
268863
278762
288762
298762
308762
318661

How August really feels in Moab

Once humidity and wind are folded in, August averages 11 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.

Days feeling ≥ 90°F
11
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

The story in August is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Moab weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan39° / 20°0.95.54.59.60.0
Feb46° / 26°0.96.23.910.51.4
Mar57° / 34°1.05.52.611.74.6
Apr64° / 40°0.95.71.2136.5
May75° / 50°0.63.90.114.18.0
Jun87° / 60°0.31.9014.66.1
Jul92° / 67°0.53014.44.0
Aug89° / 64°0.84.8013.55.0
Sep80° / 55°1.25.3012.37.6
Oct66° / 42°1.04.90.3117.1
Nov52° / 31°0.94.82.39.93.2
Dec40° / 20°0.954.39.40.2

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 63% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 18% of August, with mostly cloudy or overcast conditions the remaining 19%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17525
27525
37525
47525
57525
67624
77723
87822
97822
108020
118020
128218
138317
148317
158317
168416
178416
188416
198416
208416
218416
228317
238317
248416
258416
268416
278416
288416
298317
308317
318317

Chance of precipitation in August

Any precipitation

Moab gets around 0.8 in of rain over 4.8 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 15% and peaks near 17% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
117
217
317
417
517
617
717
816
916
1015
1115
1214
1314
1414
1514
1614
1714
1814
1914
2014
2114
2214
2314
2414
2514
2614
2714
2814
2914
3014
3114

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the dry band about 93% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
188102
288102
388102
488102
58992
68992
78992
89082
99082
109172
119271
129361
139361
149451
159451
169451
179550
189550
199550
209550
219550
229550
239550
249550
259550
269550
279550
289550
299550
309550
319550

Wind in August

Winds average 5 mph in August.

Across August, daily wind ranges from about 5 mph on the calmest days to 5 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 14 hours at the start of August to 12 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over August. Sunrise moves from 5:23 AM to 5:51 AM, and sunset from 7:25 PM to 6:46 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.05:237:25
214.05:247:24
314.05:257:23
413.95:267:22
513.95:277:21
613.95:287:20
713.85:297:19
813.85:307:18
913.85:317:16
1013.75:317:15
1113.75:327:14
1213.75:337:13
1313.65:347:12
1413.65:357:10
1513.65:367:09
1613.55:377:08
1713.55:387:06
1813.45:397:05
1913.45:407:04
2013.45:417:02
2113.35:417:01
2213.35:426:59
2313.25:436:58
2413.25:446:56
2513.25:456:55
2613.15:466:54
2713.15:476:52
2813.05:486:50
2913.05:496:49
3013.05:506:47
3112.95:516:46

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 7.04 kWh/m².

For context, solar energy here swings from a low near 2.64 kWh/m² to a high of 8.42 kWh/m² in June across the year — August's 7.04 kWh/m² falls in the middle.

02468151015202531
Solar energy (kWh/m²)Level
17.4Intense
27.4Intense
37.4Intense
47.3Intense
57.3Intense
67.3Intense
77.3Intense
87.3Intense
97.3Intense
107.2Intense
117.2Intense
127.2Intense
137.2Intense
147.2Intense
157.1Intense
167.1Intense
177.1Intense
187.0Intense
197.0Intense
207.0Intense
216.9Intense
226.9Intense
236.9Intense
246.8Intense
256.8Intense
266.8Intense
276.7Intense
286.7Intense
296.7Intense
306.6Intense
316.6Intense
Planning a trip in August

Is August a good time to visit Moab?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.0
Sightseeing
6th-best month of the year
7.7
Beach & pool
2nd-best month of the year

August is a reasonable time to visit Moab for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Moab in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Moab sees daytime highs around 89°F and nights near 64°F. Pack light clothes and sun protection. About 5 days see rain.

light clothessun protection

UV index in Moab in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Moab peaks around July 18 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 18UV 11Dec 19UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr6High
May8Very high
Jun10Extreme
Jul11Extreme
Aug11Extreme
Sep8Very high
Oct5High
Nov3Moderate
Dec2Moderate
Location & terrain

Where is Moab?

Moab sits at 38.6°N, 109.5°W, 0 ft above sea level, in United States. The nearest listed city is Grand Junction, 63 mi away.

Topography around Moab

How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Moab.

Within 2 miles, the terrain around Moab has significant variations in elevation — a maximum elevation change of 1,470 ft around an average of 4,390 ft above sea level; within 10 miles, large variations in elevation — a maximum elevation change of 3,406 ft; within 50 miles, extreme variations in elevation — a maximum elevation change of 8,940 ft.

The land around Moab is covered by bare terrain (45%) and shrubs (24%) within 2 miles, bare terrain (48%) and shrubs (39%) within 10 miles, and bare terrain (38%) and shrubs (29%) within 50 miles.

2 miles
1,470 ft
10 miles
3,406 ft
50 miles
8,940 ft
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Grand Junction 63 mi · Clifton 69 mi · Montrose 91 mi · Telluride 104 mi · Durango 128 mi · Farmington 147 mi · Aspen 153 mi · Payson 155 mi

United States travel facts

Power plugs
Type A / B
120 V · 60 Hz
Prices
≈ 100% of US
price level, 2025
GDP per capita
$90,027
2025
Happiness
6.8 / 10
World Happiness, 2025
Safe drinking water
98%
of population, 2024
Homicide rate
5.8
per 100k, 2023
Road deaths
12.7
per 100k/yr, 2019
Income group
High
World Bank
Religion
Protestant 47%unaffiliated 23%Roman Catholic 21%Jewish 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Moab (38.5733°, -109.5498°, elevation 0 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).