Opelousas weather in July

In July, Opelousas sees average daytime highs of 91°F and overnight lows near 74°F, with 5.1 in of rain across 17.2 wet days and about 13.8 hours of daylight. It is the 2nd-warmest and 1st-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 26% of the time in July, and the air most often feels oppressive.

Daylight stretches from about 14 hours at the start of July to 13 h 30 min by month's end. Set against the rest of the year, July is Opelousas's 12th-clearest and 11th-windiest month. For the whole year in context, see Opelousas's year-round climate.

Daytime high
91°
2nd warmest
Overnight low
74°
12th coldest
Rainfall
5.1 in
17.2 wet days
Daylight
13 h 48 min
5:20 AM – 7:08 PM
Cloud cover
61%
12th clearest
Wind
5 mph
11th windiest
Solar energy
6.02 kWh/m²
Travel score
3.1
out of 10

Opelousas is parish seat of St. Landry Parish, Louisiana, United States.

Founded
1720

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 91°F through the month.

A typical July day in Opelousas reaches about 91°F in the afternoon and slips back to 74°F overnight — a 16°F spread between the day's warmth and the night's chill. On most days the high lands between 86°F and 95°F. Set against its neighbours, July runs on par with June and on par with August.

70°80°90°100°151015202531
Avg high (°F)Avg low (°F)
19174
29174
39174
49174
59174
69174
79174
89174
99174
109174
119174
129174
139174
149174
159174
169174
179174
189174
199174
209174
219174
229174
239174
249174
259174
269174
279174
289174
299174
309174
319174

How July really feels in Opelousas

Once humidity and wind are folded in, July 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 July is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Opelousas weather by month

How July compares with the rest of the year at a glance. July is the 2nd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan61° / 43°5.19.610.25.2
Feb65° / 46°4.39.210.95.9
Mar71° / 52°4.49.911.86.7
Apr78° / 58°4.59.212.76.9
May85° / 66°4.19.613.55.4
Jun90° / 73°4.713.813.93.7
Jul91° / 74°5.117.213.83.1
Aug91° / 74°4.915.413.13.1
Sep88° / 70°3.910.712.24.5
Oct80° / 60°3.97.411.37.0
Nov70° / 50°3.68.310.57.0
Dec63° / 45°4.89.310.15.7

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 26% of the time in July, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 23% of July, with mostly cloudy or overcast conditions the remaining 51%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
24852
34951
44951
54852
65050
74951
84852
94951
104852
114951
124852
134852
144852
154951
164852
174852
184852
194852
204951
214951
224852
234852
244951
254951
265050
275050
285050
295050
305149
315149

Chance of precipitation in July

Any precipitation

Opelousas gets around 5.1 in of rain over 17.2 wet days in July, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 55% and peaks near 59% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
151
251
351
452
552
653
754
855
956
1057
1158
1258
1359
1459
1559
1659
1758
1858
1958
2058
2157
2256
2356
2455
2554
2654
2753
2852
2952
3051
3151

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the oppressive band about 68% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
110597114
210487215
310487215
400377416
500377416
600367516
700267517
800257617
900257617
1000157618
1100147619
1200147520
1300147421
1400147322
1500147223
1600147124
1700147025
1800146827
1900246628
2000256429
2100256330
2201256131
2301266031
2401265932
2501265932
2601265932
2701275832
2801275832
2901275931
3001276030
3101276030

Wind in July

Winds average 5 mph in July.

Across July, 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.

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
245calm
255calm
265calm
275calm
285calm
295calm
305calm
315calm

Sunrise & sunset in July

DaylightNight

Daylight runs from about 14 hours at the start of July to 13 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over July. Sunrise moves from 5:13 AM to 5:29 AM, and sunset from 7:10 PM to 7:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
114.05:137:10
213.95:137:10
313.95:147:10
413.95:147:10
513.95:157:10
613.95:157:10
713.95:167:10
813.95:167:10
913.95:167:10
1013.95:177:09
1113.95:177:09
1213.95:187:09
1313.85:187:09
1413.85:197:08
1513.85:207:08
1613.85:207:08
1713.85:217:07
1813.85:217:07
1913.75:227:07
2013.75:227:06
2113.75:237:06
2213.75:237:05
2313.75:247:05
2413.75:257:04
2513.65:257:04
2613.65:267:03
2713.65:267:03
2813.65:277:02
2913.65:287:01
3013.55:287:01
3113.55:297:00

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.02 kWh/m².

For context, solar energy here swings from a low near 2.62 kWh/m² to a high of 6.16 kWh/m² in May across the year — July's 6.02 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
86.1Intense
96.1Intense
106.1Intense
116.0Intense
126.0Intense
136.0Intense
146.0Intense
156.0Intense
166.0Intense
176.0Intense
186.0Intense
196.0Intense
206.0Intense
216.0Intense
226.0Intense
236.0Bright
246.0Bright
256.0Bright
266.0Bright
276.0Bright
286.0Bright
296.0Bright
306.0Bright
316.0Bright
Planning a trip in July

Is July a good time to visit Opelousas?

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

3.1
Sightseeing
11th-best month of the year
5.3
Beach & pool
7th-best month of the year

July is a weaker month for outdoor sightseeing in Opelousas.

What to pack for Opelousas in July

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

In July, Opelousas sees daytime highs around 91°F and nights near 74°F. Pack light clothes, rain gear and sun protection. About 17 days see rain.

light clothesrain gearsun protection

UV index in Opelousas in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Opelousas peaks around July 13 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highVery highExtremeVery highHighModerateJul 13UV 10Dec 20UV 4
UV index (midday)Level
Jan4Moderate
Feb6High
Mar7High
Apr10Extreme
May10Very high
Jun10Very high
Jul10Extreme
Aug9Very high
Sep8Very high
Oct6High
Nov5Moderate
Dec4Moderate

Air quality in Opelousas in July

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Opelousas is worst in July — around 24 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (January, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1624 µg/m³Jan 139 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar12Good
Apr12Good
May16Moderate
Jun20Moderate
Jul24Moderate
Aug19Moderate
Sep15Moderate
Oct11Good
Nov10Good
Dec9Good
Location & terrain

Where is Opelousas?

Opelousas sits at 30.5°N, 92.1°W, 66 ft above sea level, in United States. The nearest listed city is Lafayette, 22 mi away.

Topography around Opelousas

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

Within 2 miles, the terrain around Opelousas has only modest variations in elevation — a maximum elevation change of 98 ft around an average of 72 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 131 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 449 ft.

The land around Opelousas is covered by trees (46%) and grassland (32%) within 2 miles, trees (38%), grassland (34%) and cropland (25%) within 10 miles, and trees (50%) and cropland (29%) within 50 miles.

2 miles
98 ft
10 miles
131 ft
50 miles
449 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
July weather nearby: Lafayette 22 mi · New Iberia 40 mi · Baton Rouge 53 mi · Zachary 55 mi · Alexandria 58 mi · Central 62 mi · Shenandoah 65 mi · Prairieville 68 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 Opelousas (30.5335°, -92.0815°, elevation 66 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).