Opelousas in Summer
In summer (June, July and August), Opelousas sees average daytime highs around 90°F and overnight lows near 74°F, with 14.6 in of rain over about 46 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 90°F. The sky is clear or mostly clear about 30% of the time across summer, and the air most often feels oppressive.
Summer is Opelousas's weakest season of the year to visit on our travel score. For the whole year in context, see Opelousas's year-round climate.
- Avg daytime high
- 90°F
- warmest season of the year
- Avg overnight low
- 74°F
- Rainfall
- 14.6 in
- 46 wet days
- Avg wind
- 5 mph
- Travel score
- 3.3
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Opelousas in Summer
Across summer, daytime highs hold fairly steady around 90°F.
A typical summer day in Opelousas reaches about 90°F and drops to 74°F overnight. The warmest of the three months is August, the coolest June.
How summer really feels in Opelousas
Once humidity and wind are folded in, summer brings about 92 days that feel above 90°F and 0 that feel at or below 32°F.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Opelousas weather by month
How the three summer months (June, July and August) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 61° / 43° | 5.1 | 9.6 | 10.2 | 5.2 |
| Feb | 65° / 46° | 4.3 | 9.2 | 10.9 | 5.9 |
| Mar | 71° / 52° | 4.4 | 9.9 | 11.8 | 6.7 |
| Apr | 78° / 58° | 4.5 | 9.2 | 12.7 | 6.9 |
| May | 85° / 66° | 4.1 | 9.6 | 13.5 | 5.4 |
| Jun | 90° / 73° | 4.7 | 13.8 | 13.9 | 3.7 |
| Jul | 91° / 74° | 5.1 | 17.2 | 13.8 | 3.1 |
| Aug | 91° / 74° | 4.9 | 15.4 | 13.1 | 3.1 |
| Sep | 88° / 70° | 3.9 | 10.7 | 12.2 | 4.5 |
| Oct | 80° / 60° | 3.9 | 7.4 | 11.3 | 7.0 |
| Nov | 70° / 50° | 3.6 | 8.3 | 10.5 | 7.0 |
| Dec | 63° / 45° | 4.8 | 9.3 | 10.1 | 5.7 |
Cloud cover in Summer
The sky is clear or mostly clear about 30% of the time across summer.
Chance of precipitation in Summer
Opelousas gets around 14.6 in of rain over 46 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 5 mph across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 48 min in early June to 12 h 42 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 5.9 kWh/m².
Is summer a good time to visit Opelousas?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is a weaker month for outdoor sightseeing in Opelousas.
What to pack for Opelousas in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Opelousas sees daytime highs around 90°F and nights near 74°F. Pack light clothes, rain gear and sun protection. About 46 days see rain.
UV index in Opelousas in Summer
Clear-sky midday UV across summer averages 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 4 | 6 | 7 | 10 | 10 | 10 | 10 | 9 | 8 | 6 | 5 | 4 |
| Level | Moderate | High | High | Extreme | Very high | Very high | Extreme | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 4 | Moderate |
| Feb | 6 | High |
| Mar | 7 | High |
| Apr | 10 | Extreme |
| May | 10 | Very high |
| Jun | 10 | Very high |
| Jul | 10 | Extreme |
| Aug | 9 | Very high |
| Sep | 8 | Very high |
| Oct | 6 | High |
| Nov | 5 | Moderate |
| Dec | 4 | Moderate |
Air quality in Opelousas in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer 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).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 9 | 10 | 12 | 12 | 16 | 20 | 24 | 19 | 15 | 11 | 10 | 9 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 9 | Good |
| Feb | 10 | Good |
| Mar | 12 | Good |
| Apr | 12 | Good |
| May | 16 | Moderate |
| Jun | 20 | Moderate |
| Jul | 24 | Moderate |
| Aug | 19 | Moderate |
| Sep | 15 | Moderate |
| Oct | 11 | Good |
| Nov | 10 | Good |
| Dec | 9 | Good |
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.
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
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.