Moab weather in September

In September, Moab sees average daytime highs of 80°F and overnight lows near 55°F, with 1.2 in of rain across 5.3 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 85°F in the first days to 74°F by the end. The sky is clear or mostly clear about 68% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 54 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Moab's 1st-clearest and 6th-windiest month. For the whole year in context, see Moab's year-round climate.

Daytime high
80°
4th warmest
Overnight low
55°
9th coldest
Rainfall
1.2 in
5.3 wet days
Daylight
12 h 12 min
6:05 AM – 6:20 PM
Cloud cover
29%
1st clearest
Wind
5 mph
6th windiest
Solar energy
5.96 kWh/m²
Travel score
7.6
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 September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 85°F in the first days to 74°F by the end.

A typical September day in Moab reaches about 80°F in the afternoon and slips back to 55°F overnight — a 25°F spread between the day's warmth and the night's chill. On most days the high lands between 69°F and 88°F. Set against its neighbours, September runs about 9°F cooler than August and about 14°F warmer than October.

40°60°80°151015202530
Avg high (°F)Avg low (°F)
18661
28561
38560
48560
58459
68459
78358
88358
98258
108257
118157
128156
138056
148055
158055
167955
177954
187854
197853
207853
217753
227752
237752
247651
257651
267551
277550
287450
297449
307349

How September really feels in Moab

Once humidity and wind are folded in, September averages 0 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
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Moab weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 1st-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 September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 68% of the time in September, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 18%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18317
28317
38317
48317
58317
68218
78218
88218
98218
108218
118119
128119
138119
148119
158119
168119
178218
188218
198317
208317
218317
228416
238416
248317
258317
268416
278317
288317
298218
308218

Chance of precipitation in September

Any precipitation

Moab gets around 1.2 in of rain over 5.3 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 18% and peaks near 22% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
115
216
316
417
518
619
719
820
921
1021
1122
1222
1322
1422
1521
1621
1720
1819
1918
2017
2117
2216
2316
2416
2516
2617
2717
2817
2918
3018

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
1964
2964
3964
4964
5964
6964
7964
8964
9973
10973
11973
12973
13973
14982
15982
16982
17982
18991
19991
20991
21991
22991
231000
241000
251000
261000
271000
281000
291000
301000

Wind in September

Winds average 5 mph in September.

Across September, 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.

0246810151015202530
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

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 54 min at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over September. Sunrise moves from 5:52 AM to 6:18 AM, and sunset from 6:44 PM to 5:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.95:526:44
212.85:526:43
312.85:536:41
412.85:546:40
512.75:556:38
612.75:566:36
712.65:576:35
812.65:586:33
912.55:596:31
1012.56:006:30
1112.56:016:28
1212.46:016:27
1312.46:026:25
1412.36:036:23
1512.36:046:22
1612.26:056:20
1712.26:066:18
1812.26:076:17
1912.16:086:15
2012.16:096:13
2112.06:106:12
2212.06:116:10
2311.96:126:08
2411.96:126:07
2511.96:136:05
2611.86:146:03
2711.86:156:02
2811.76:166:00
2911.76:175:59
3011.66:185:57

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.96 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 — September's 5.96 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.4Intense
56.4Intense
66.3Intense
76.3Intense
86.2Intense
96.2Intense
106.2Intense
116.1Intense
126.1Intense
136.0Intense
146.0Intense
156.0Bright
165.9Bright
175.9Bright
185.8Bright
195.8Bright
205.8Bright
215.7Bright
225.7Bright
235.6Bright
245.6Bright
255.5Bright
265.5Bright
275.4Bright
285.4Bright
295.3Bright
305.3Bright
Planning a trip in September

Is September a good time to visit Moab?

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

7.6
Sightseeing
2nd-best month of the year
7.5
Beach & pool
3rd-best month of the year

September is one of the better times to visit Moab for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Moab in September

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

In September, Moab sees daytime highs around 80°F and nights near 55°F. Worth packing: light clothes and sun protection. About 5 days see rain.

light clothessun protection

UV index in Moab in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 — enough to warrant sun protection. 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
September 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).