Hattiesburg weather in May

In May, Hattiesburg sees average daytime highs of 84°F and overnight lows near 64°F, with 4.0 in of rain across 10.1 wet days and about 13.6 hours of daylight. It is the 5th-warmest and 8th-wettest month of the year here.

Highs climb over the month, from about 81°F in the first days to 87°F by the end. The sky is clear or mostly clear about 38% of the time in May, and the air most often feels muggy.

Daylight stretches from about 13 h 12 min at the start of May to 13 h 54 min by month's end. Set against the rest of the year, May is Hattiesburg's 5th-clearest and 8th-windiest month. For the whole year in context, see Hattiesburg's year-round climate.

Daytime high
84°
5th warmest
Overnight low
64°
8th coldest
Rainfall
4.0 in
10.1 wet days
Daylight
13 h 36 min
5:06 AM – 6:41 PM
Cloud cover
53%
5th clearest
Wind
6 mph
8th windiest
Solar energy
6.15 kWh/m²
Travel score
5.6
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 May

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 81°F in the first days to 87°F by the end.

A typical May day in Hattiesburg reaches about 84°F in the afternoon and slips back to 64°F overnight — a 20°F spread between the day's warmth and the night's chill. On most days the high lands between 77°F and 90°F. Set against its neighbours, May runs about 7°F warmer than April and about 5°F cooler than June.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
18059
28160
38160
48160
58261
68261
78261
88262
98362
108362
118362
128363
138463
148463
158464
168464
178564
188564
198565
208565
218565
228666
238666
248666
258667
268767
278767
288767
298768
308768
318768

How May really feels in Hattiesburg

Once humidity and wind are folded in, May averages 3 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
3
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

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

Hattiesburg weather by month

How May compares with the rest of the year at a glance. May is the 5th-warmest and 8th-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 May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 18% of May, with mostly cloudy or overcast conditions the remaining 43%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25644
35644
45644
55644
65545
75545
85545
95644
105644
115644
125743
135743
145743
155842
165941
175941
186040
196040
205941
215941
225941
235842
245842
255743
265743
275644
285545
295545
305446
315446

Chance of precipitation in May

Any precipitation

Hattiesburg gets around 4.0 in of rain over 10.1 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 32% and peaks near 42% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
126
226
326
427
527
627
727
828
928
1028
1129
1229
1330
1430
1531
1631
1732
1832
1933
2034
2134
2235
2336
2437
2537
2638
2739
2840
2940
3041
3142

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the muggy band about 35% of days. Sticky, muggy-or-worse air turns up on roughly 49% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1301826215
2291726226
3281726236
4271726247
5251726257
6241725267
7231625278
8221625288
9221625299
10211625309
112015253010
121915243110
131914243211
141814243311
151713233412
161713233512
171613233613
181513223714
191412223814
201312213915
211212204016
221111204117
231011194218
24910194319
25810184420
26710184422
2769174423
2859174425
2948174427
3038164429
3138164331

Wind in May

Winds average 6 mph in May.

Across May, 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
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 13 h 12 min at the start of May to 13 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over May. Sunrise moves from 5:18 AM to 4:58 AM, and sunset from 6:31 PM to 6:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.25:186:31
213.25:176:31
313.35:166:32
413.35:156:33
513.35:146:33
613.35:146:34
713.45:136:35
813.45:126:35
913.45:116:36
1013.45:106:37
1113.55:096:38
1213.55:096:38
1313.55:086:39
1413.55:076:40
1513.65:066:40
1613.65:066:41
1713.65:056:42
1813.65:056:42
1913.75:046:43
2013.75:036:44
2113.75:036:44
2213.75:026:45
2313.75:026:46
2413.85:016:46
2513.85:016:47
2613.85:006:48
2713.85:006:48
2813.85:006:49
2913.84:596:49
3013.94:596:50
3113.94:586:51

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.15 kWh/m² — the sunniest month for solar.

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 — May's 6.15 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.0Intense
26.0Intense
36.1Intense
46.1Intense
56.1Intense
66.1Intense
76.1Intense
86.2Intense
96.2Intense
106.2Intense
116.2Intense
126.2Intense
136.2Intense
146.2Intense
156.2Intense
166.2Intense
176.2Intense
186.2Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.1Intense
316.1Intense
Planning a trip in May

Is May a good time to visit Hattiesburg?

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

5.6
Sightseeing
6th-best month of the year
6.9
Beach & pool
2nd-best month of the year

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

What to pack for Hattiesburg in May

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

In May, Hattiesburg sees daytime highs around 84°F and nights near 64°F. Pack light clothes and sun protection. Worth having: rain gear. About 10 days see rain.

light clothessun protectionrain gear

UV index in Hattiesburg in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 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 May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May 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
May 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).