Fayetteville weather in August

In August, Fayetteville sees average daytime highs of 87°F and overnight lows near 69°F, with 3.0 in of rain across 9.6 wet days and about 13.4 hours of daylight. It is the 2nd-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 87°F through the month. The sky is clear or mostly clear about 46% of the time in August, and the air most often feels muggy.

Daylight stretches from about 13 h 48 min at the start of August to 12 h 48 min by month's end. Set against the rest of the year, August is Fayetteville's 3rd-clearest and 12th-windiest month. For the whole year in context, see Fayetteville's year-round climate.

Daytime high
87°
2nd warmest
Overnight low
69°
11th coldest
Rainfall
3.0 in
9.6 wet days
Daylight
13 h 24 min
5:39 AM – 7:02 PM
Cloud cover
47%
3rd clearest
Wind
5 mph
12th windiest
Solar energy
5.96 kWh/m²
Travel score
4.8
out of 10

Fayetteville is county seat of Washington County, Arkansas, United States.

Density
579/km²
people per km²
Founded
1828

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

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 87°F through the month.

A typical August day in Fayetteville reaches about 87°F in the afternoon and slips back to 69°F overnight — a 19°F spread between the day's warmth and the night's chill. On most days the high lands between 79°F and 96°F. Set against its neighbours, August runs on par with July and about 7°F warmer than September.

60°70°80°90°100°151015202531
Avg high (°F)Avg low (°F)
18970
28870
38870
48870
58870
68870
78869
88869
98869
108869
118869
128869
138869
148769
158769
168769
178769
188768
198768
208768
218768
228768
238768
248768
258768
268768
278767
288767
298667
308667
318667

How August really feels in Fayetteville

Once humidity and wind are folded in, August averages 17 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
17
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.

Fayetteville weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan46° / 29°2.77.61.79.81.4
Feb51° / 33°2.77.61.510.62.6
Mar60° / 40°4.410.6111.74.7
Apr68° / 49°5.511.1012.96.1
May75° / 58°5.612.9013.96.4
Jun83° / 67°4.110.9014.45.6
Jul88° / 70°3.310.4014.24.5
Aug87° / 69°3.09.6013.44.8
Sep81° / 61°3.87.8012.26.8
Oct70° / 50°4.19011.16.9
Nov58° / 40°3.77.90.410.14.5
Dec48° / 32°3.07.61.49.62.0

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 22% of August, with mostly cloudy or overcast conditions the remaining 32%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26436
36436
46436
56535
66535
76634
86634
96634
106634
116733
126733
136733
146832
156832
166931
176931
186931
196931
207030
217030
227030
237030
247030
257030
266931
276931
286931
296931
306931
316931

Chance of precipitation in August

Any precipitation

Fayetteville gets around 3.0 in of rain over 9.6 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 31% and peaks near 34% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
133
233
333
434
533
633
733
833
933
1033
1133
1233
1332
1432
1532
1631
1731
1830
1930
2030
2130
2230
2330
2430
2530
2630
2730
2830
2930
3030
3130

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the muggy band about 41% of days. Sticky, muggy-or-worse air turns up on roughly 66% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1061844301
2061944301
3161944301
4151944301
5151944301
6152043301
7162043301
8262042301
9262041291
10272040291
11372040291
12382039291
13382138291
14482138291
15492138281
16492138270
17492238270
184102238260
194102338250
204102339240
214102339230
224102440220
234102440210
245102441200
255102541190
265112542180
275112542170
286112642160
296122642150
307122641140
318132641130

Wind in August

Winds average 5 mph in August, the calmest month.

Across August, daily wind ranges from about 5 mph on the calmest days to 6 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
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 48 min at the start of August to 12 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 60 minutes over August. Sunrise moves from 5:27 AM to 5:51 AM, and sunset from 7:18 PM to 6:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.85:277:18
213.85:287:17
313.85:297:16
413.85:307:15
513.75:307:14
613.75:317:13
713.75:327:12
813.65:337:11
913.65:347:10
1013.65:347:09
1113.55:357:08
1213.55:367:07
1313.55:377:06
1413.45:387:05
1513.45:397:03
1613.45:397:02
1713.35:407:01
1813.35:417:00
1913.35:426:58
2013.25:436:57
2113.25:436:56
2213.25:446:54
2313.15:456:53
2413.15:466:52
2513.15:476:50
2613.05:476:49
2713.05:486:48
2813.05:496:46
2912.95:506:45
3012.95:516:43
3112.85:516:42

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.96 kWh/m².

For context, solar energy here swings from a low near 2.24 kWh/m² to a high of 6.55 kWh/m² in July across the year — August's 5.96 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.2Intense
46.2Intense
56.2Intense
66.2Intense
76.1Intense
86.1Intense
96.1Intense
106.0Intense
116.0Intense
126.0Intense
136.0Bright
146.0Bright
155.9Bright
165.9Bright
175.9Bright
185.9Bright
195.9Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.7Bright
265.7Bright
275.7Bright
285.6Bright
295.6Bright
305.5Bright
315.5Bright
Planning a trip in August

Is August a good time to visit Fayetteville?

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

4.8
Sightseeing
6th-best month of the year
6.9
Beach & pool
2nd-best month of the year

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

What to pack for Fayetteville in August

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

In August, Fayetteville sees daytime highs around 87°F and nights near 69°F. Pack light clothes. Worth having: rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in Fayetteville in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Fayetteville peaks around July 12 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highVery highHighModerateJul 12UV 10Dec 22UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr8Very high
May8Very high
Jun10Very high
Jul10Extreme
Aug9Very high
Sep8Very high
Oct5High
Nov4Moderate
Dec3Moderate

Air quality in Fayetteville in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Fayetteville is worst in July — around 19 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (November, 6 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodGoodModerateGoodJul 1518 µg/m³Nov 236 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb9Good
Mar12Moderate
Apr11Good
May13Moderate
Jun16Moderate
Jul19Moderate
Aug15Moderate
Sep11Good
Oct7Good
Nov6Good
Dec6Good
Location & terrain

Where is Fayetteville?

Fayetteville sits at 36.1°N, 94.2°W, 1,401 ft above sea level, in United States. The nearest listed city is Springdale, 8.7 mi away.

Topography around Fayetteville

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

Within 2 miles, the terrain around Fayetteville has only modest variations in elevation — a maximum elevation change of 564 ft around an average of 1,355 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 1,135 ft; within 50 miles, large variations in elevation — a maximum elevation change of 2,218 ft.

The land around Fayetteville is covered by trees (58%) and artificial surfaces (29%) within 2 miles, trees (52%) and grassland (35%) within 10 miles, and trees (67%) and grassland (28%) within 50 miles.

2 miles
564 ft
10 miles
1,135 ft
50 miles
2,218 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Springdale 8.7 mi · Rogers 19 mi · Bentonville 22 mi · Siloam Springs 23 mi · Bella Vista 30 mi · Van Buren 45 mi · Tahlequah 47 mi · Fort Smith 48 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 Fayetteville (36.0626°, -94.1574°, elevation 1,401 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. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).