Hattiesburg weather in August

In August, Hattiesburg sees average daytime highs of 91°F and overnight lows near 72°F, with 4.5 in of rain across 15.8 wet days and about 13.1 hours of daylight. It is the 1st-warmest and 4th-wettest month of the year here.

Day-to-day highs hold fairly steady near 91°F through the month. The sky is clear or mostly clear about 30% of the time in August, and the air most often feels oppressive.

Daylight stretches from about 13 h 30 min at the start of August to 12 h 42 min by month's end. Set against the rest of the year, August is Hattiesburg's 11th-clearest and 11th-windiest month. For the whole year in context, see Hattiesburg's year-round climate.

Daytime high
91°
1st warmest
Overnight low
72°
11th coldest
Rainfall
4.5 in
15.8 wet days
Daylight
13 h 12 min
5:27 AM – 6:36 PM
Cloud cover
59%
11th clearest
Wind
4 mph
11th windiest
Solar energy
5.56 kWh/m²
Travel score
3.2
out of 10

Hattiesburg is city in Lamar County and Forrest County, Mississippi, United States; county seat of Forrest County, Mississippi.

Density
333/km²
people per km²
Founded
1882

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 91°F through the month.

A typical August day in Hattiesburg reaches about 91°F in the afternoon and slips back to 72°F overnight — a 18°F spread between the day's warmth and the night's chill. On most days the high lands between 85°F and 96°F. Set against its neighbours, August runs on par with July and about 3°F warmer than September.

60°70°80°90°100°151015202531
Avg high (°F)Avg low (°F)
19173
29173
39173
49173
59173
69173
79173
89173
99173
109173
119173
129173
139173
149173
159172
169172
179172
189172
199172
209172
219172
229172
239172
249172
259172
269072
279071
289071
299071
309071
319071

How August really feels in Hattiesburg

Once humidity and wind are folded in, August averages 31 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
31
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.

Hattiesburg weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan60° / 40°4.49.510.24.8
Feb64° / 43°4.39.410.95.7
Mar70° / 49°4.69.911.86.6
Apr77° / 56°4.08.412.77.1
May84° / 64°4.010.113.65.6
Jun89° / 71°4.513.7143.7
Jul91° / 73°5.117.713.83.1
Aug91° / 72°4.515.813.13.2
Sep87° / 68°3.410.312.24.7
Oct79° / 57°3.36.911.27.3
Nov69° / 47°3.47.810.46.9
Dec62° / 42°4.49.5105.3

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 20% of August, with mostly cloudy or overcast conditions the remaining 50%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14753
24753
34654
44654
54852
64852
74951
84852
94951
104951
115050
125050
135050
145149
155248
165248
175248
185248
195347
205347
215347
225248
235248
245248
255248
265149
275149
285149
295149
305149
315248

Chance of precipitation in August

Any precipitation

Hattiesburg gets around 4.5 in of rain over 15.8 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 51% and peaks near 58% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
158
258
358
457
557
657
756
855
955
1054
1154
1253
1353
1452
1552
1651
1750
1850
1949
2048
2148
2247
2347
2447
2546
2646
2745
2845
2944
3044
3143

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, August lands in the oppressive band about 64% of days. Sticky, muggy-or-worse air turns up on roughly 93% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1013126717
2013126717
3013126717
4013126717
5013126717
6013126717
7013126717
8013126816
9113126716
10113126716
11113126716
12113126815
13123136615
14124136515
15124136614
16124146514
17124156513
18124156612
19134166412
20135176311
21135186211
22135196210
23135206110
2413621609
2513622599
2613623589
2713724578
2813725568
2913726567
3013827547
3113827547

Wind in August

Winds average 4 mph in August.

Across August, daily wind ranges from about 4 mph on the calmest days to 5 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
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in August

DaylightNight

Daylight runs from about 13 h 30 min at the start of August to 12 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 48 minutes over August. Sunrise moves from 5:17 AM to 5:36 AM, and sunset from 6:49 PM to 6:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:176:49
213.55:186:49
313.55:186:48
413.55:196:47
513.45:206:46
613.45:206:45
713.45:216:45
813.45:226:44
913.35:226:43
1013.35:236:42
1113.35:236:41
1213.35:246:40
1313.25:256:39
1413.25:256:38
1513.25:266:37
1613.25:276:36
1713.15:276:35
1813.15:286:34
1913.15:296:33
2013.05:296:31
2113.05:306:30
2213.05:316:29
2312.95:316:28
2412.95:326:27
2512.95:326:26
2612.95:336:24
2712.85:346:23
2812.85:346:22
2912.85:356:21
3012.75:366:20
3112.75:366:18

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.56 kWh/m².

For context, solar energy here swings from a low near 2.59 kWh/m² to a high of 6.15 kWh/m² in May across the year — August's 5.56 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.6Bright
145.6Bright
155.6Bright
165.6Bright
175.6Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.4Bright
245.4Bright
255.4Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.2Bright
315.2Bright
Planning a trip in August

Is August a good time to visit Hattiesburg?

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

3.2
Sightseeing
11th-best month of the year
5.5
Beach & pool
6th-best month of the year

August is a weaker month for outdoor sightseeing in Hattiesburg.

What to pack for Hattiesburg in August

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

In August, Hattiesburg sees daytime highs around 91°F and nights near 72°F. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

light clothesrain gearsun protection

UV index in Hattiesburg 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 Hattiesburg peaks around July 10 at about 10 (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 — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 10UV 10Dec 20UV 3
UV index (midday)Level
Jan4Moderate
Feb6High
Mar6High
Apr10Very high
May9Very high
Jun10Very high
Jul10Very high
Aug8Very high
Sep8Very high
Oct6High
Nov5Moderate
Dec3Moderate

Air quality in Hattiesburg 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 Hattiesburg is worst in July — around 22 µg/m³ PM2.5 (moderate), about 3.3× the cleanest month (December, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1621 µg/m³Dec 227 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb10Good
Mar16Moderate
Apr12Moderate
May14Moderate
Jun18Moderate
Jul22Moderate
Aug18Moderate
Sep13Moderate
Oct9Good
Nov8Good
Dec7Good
Location & terrain

Where is Hattiesburg?

Hattiesburg sits at 31.3°N, 89.3°W, 171 ft above sea level, in United States. The nearest listed city is Laurel, 27 mi away.

Topography around Hattiesburg

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

Within 2 miles, the terrain around Hattiesburg has only modest variations in elevation — a maximum elevation change of 128 ft around an average of 167 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 397 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 587 ft.

The land around Hattiesburg is covered by trees (59%) within 2 miles, trees (78%) within 10 miles, and trees (89%) within 50 miles.

2 miles
128 ft
10 miles
397 ft
50 miles
587 ft
treesgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Laurel 27 mi · West Gulfport 65 mi · Gulfport 67 mi · Long Beach 68 mi · Biloxi 69 mi · Ocean Springs 69 mi · Gautier 76 mi · Brandon 77 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 Hattiesburg (31.3271°, -89.2903°, elevation 171 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).