Spartanburg weather in August

In August, Spartanburg sees average daytime highs of 87°F and overnight lows near 70°F, with 3.8 in of rain across 11.6 wet days and about 13.3 hours of daylight. It is the 2nd-warmest and 4th-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 28% 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 Spartanburg's 10th-clearest and 12th-windiest month. For the whole year in context, see Spartanburg's year-round climate.

Daytime high
87°
2nd warmest
Overnight low
70°
11th coldest
Rainfall
3.8 in
11.6 wet days
Daylight
13 h 18 min
5:52 AM – 7:12 PM
Cloud cover
58%
10th clearest
Wind
4 mph
12th windiest
Solar energy
5.39 kWh/m²
Travel score
4.4
out of 10

Spartanburg is city and county seat of Spartanburg County, South Carolina, United States.

Density
735/km²
people per km²
Founded
1831

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 Spartanburg reaches about 87°F in the afternoon and slips back to 70°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 80°F and 95°F. Set against its neighbours, August runs about 2°F cooler than July and about 6°F warmer than September.

60°70°80°90°100°151015202531
Avg high (°F)Avg low (°F)
18971
28971
38971
48971
58871
68871
78871
88871
98871
108870
118870
128870
138870
148870
158870
168870
178770
188770
198770
208770
218770
228769
238769
248769
258769
268769
278769
288669
298668
308668
318668

How August really feels in Spartanburg

Once humidity and wind are folded in, August averages 24 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
24
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.

Spartanburg weather by month

How August compares with the rest of the year at a glance. August is the 2nd-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysSnow daysDaylight (hours)Travel score
Jan52° / 33°4.09.719.92.7
Feb55° / 36°3.68.50.910.73.7
Mar63° / 42°4.4100.311.75.7
Apr72° / 51°3.78.7012.96.9
May80° / 59°3.19.7013.86.5
Jun87° / 67°3.611.7014.34.6
Jul90° / 71°3.712.9014.13.7
Aug87° / 70°3.811.6013.34.4
Sep82° / 63°3.68.8012.26.3
Oct72° / 51°3.26.9011.17.4
Nov62° / 41°3.67.5010.25.7
Dec54° / 35°4.08.90.59.73.4

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 23% of August, with mostly cloudy or overcast conditions the remaining 49%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
24951
34951
44951
54951
64951
75050
85050
95050
104951
115050
125050
135050
145050
155050
165149
175248
185248
195248
205347
215347
225347
235347
245347
255347
265446
275446
285446
295446
305446
315446

Chance of precipitation in August

Any precipitation

Spartanburg gets around 3.8 in of rain over 11.6 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 38% and peaks near 44% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
144
244
344
444
544
643
743
843
943
1043
1142
1242
1341
1440
1539
1638
1737
1836
1935
2034
2134
2233
2332
2432
2532
2632
2732
2832
2931
3031
3131

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 73% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1361337410
2361437400
3361437400
4371437390
5371437390
6371438380
7371438380
8371438380
9371438380
10361539370
11261539370
12261540371
13261540361
14261541351
15261641351
16261642341
17261742331
18261743321
19261843311
20261844301
21261944291
22261944280
23262045270
24262045270
25362144260
26372144250
27382243240
28382243230
29492342220
304102342210
315112341200

Wind in August

Winds average 4 mph in August, the calmest month.

Across August, daily wind ranges from about 4 mph on the calmest days to 4 mph at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (mph)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

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 5:41 AM to 6:04 AM, and sunset from 7:27 PM to 6:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.85:417:27
213.75:417:26
313.75:427:25
413.75:437:24
513.75:447:23
613.65:447:22
713.65:457:21
813.65:467:20
913.55:477:19
1013.55:477:18
1113.55:487:17
1213.55:497:16
1313.45:507:15
1413.45:517:14
1513.45:517:13
1613.35:527:12
1713.35:537:10
1813.35:547:09
1913.25:547:08
2013.25:557:07
2113.25:567:05
2213.15:577:04
2313.15:577:03
2413.15:587:02
2513.05:597:00
2613.06:006:59
2712.96:016:57
2812.96:016:56
2912.96:026:55
3012.86:036:53
3112.86:046:52

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.39 kWh/m².

For context, solar energy here swings from a low near 2.3 kWh/m² to a high of 6.17 kWh/m² in June across the year — August's 5.39 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.6Bright
45.6Bright
55.6Bright
65.6Bright
75.6Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.4Bright
145.4Bright
155.4Bright
165.4Bright
175.4Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
315.0Bright
Planning a trip in August

Is August a good time to visit Spartanburg?

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

4.4
Sightseeing
8th-best month of the year
6.4
Beach & pool
4th-best month of the year

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

What to pack for Spartanburg in August

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

In August, Spartanburg sees daytime highs around 87°F and nights near 70°F. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

UV index in Spartanburg in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Spartanburg peaks around July 11 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 11UV 9Dec 20UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7High
May8Very high
Jun9Very high
Jul9Very high
Aug8Very high
Sep7High
Oct5Moderate
Nov4Moderate
Dec2Moderate

Air quality in Spartanburg 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 Spartanburg is worst in July — around 19 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (December, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1719 µg/m³Dec 239 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb11Good
Mar13Moderate
Apr12Moderate
May14Moderate
Jun17Moderate
Jul19Moderate
Aug17Moderate
Sep13Moderate
Oct10Good
Nov10Good
Dec9Good
Location & terrain

Where is Spartanburg?

Spartanburg sits at 34.9°N, 81.9°W, 807 ft above sea level, in United States. The nearest listed city is Greer, 17 mi away.

Topography around Spartanburg

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

Within 2 miles, the terrain around Spartanburg has only modest variations in elevation — a maximum elevation change of 256 ft around an average of 764 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 571 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 4,167 ft.

The land around Spartanburg is covered by trees (64%) and artificial surfaces (26%) within 2 miles, trees (71%) within 10 miles, and trees (82%) within 50 miles.

2 miles
256 ft
10 miles
571 ft
50 miles
4,167 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Greer 17 mi · Taylors 21 mi · Wade Hampton 23 mi · Simpsonville 24 mi · Mauldin 24 mi · Greenville 27 mi · Shelby 32 mi · Easley 39 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 Spartanburg (34.9496°, -81.9321°, elevation 807 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).