Lake Charles in Summer
In summer (June, July and August), Lake Charles sees average daytime highs around 90°F and overnight lows near 74°F, with 14.4 in of rain over about 47 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 31% of the time across summer, and the air most often feels oppressive.
Summer is Lake Charles's weakest season of the year to visit on our travel score. For the whole year in context, see Lake Charles's year-round climate.
- Avg daytime high
- 90°F
- warmest season of the year
- Avg overnight low
- 74°F
- Rainfall
- 14.4 in
- 47 wet days
- Avg wind
- 5 mph
- Travel score
- 3.4
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Lake Charles in Summer
Across summer, daytime highs hold fairly steady around 90°F.
A typical summer day in Lake Charles 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 Lake Charles
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.
Lake Charles 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 | 62° / 44° | 5.1 | 9.9 | 10.3 | 5.2 |
| Feb | 65° / 47° | 3.8 | 9.4 | 10.9 | 5.9 |
| Mar | 71° / 53° | 4.1 | 10.4 | 11.8 | 6.6 |
| Apr | 77° / 60° | 4.6 | 9.8 | 12.7 | 6.9 |
| May | 84° / 68° | 4.0 | 10.5 | 13.5 | 5.6 |
| Jun | 89° / 73° | 5.2 | 14.9 | 13.9 | 3.8 |
| Jul | 90° / 75° | 4.5 | 16.4 | 13.8 | 3.3 |
| Aug | 91° / 75° | 4.6 | 16 | 13.1 | 3.2 |
| Sep | 87° / 70° | 4.8 | 11.7 | 12.2 | 4.5 |
| Oct | 80° / 60° | 3.8 | 8.3 | 11.3 | 7.0 |
| Nov | 70° / 51° | 4.2 | 8.7 | 10.5 | 6.9 |
| Dec | 63° / 46° | 4.9 | 9.5 | 10.1 | 5.7 |
Cloud cover in Summer
The sky is clear or mostly clear about 31% of the time across summer.
Chance of precipitation in Summer
Lake Charles gets around 14.4 in of rain over 47 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 6.0 kWh/m².
Hazard calendar for Lake Charles
In summer, Lake Charles overlaps its atlantic hurricane season. The full year is below, with each hazard's peak months called out.
Lake Charles sits in the Atlantic hurricane belt; the season peaks August–October.
Is summer a good time to visit Lake Charles?
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 Lake Charles.
What to pack for Lake Charles in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Lake Charles sees daytime highs around 90°F and nights near 74°F. Pack light clothes, rain gear and sun protection. About 47 days see rain.
Sea temperature near Lake Charles in Summer
The nearest coast averages about 85°F across summer — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 41 mi away) is warmest in August at about 86°F and coldest in January near 60°F.
It's comfortable for a long swim from Apr 1 to Nov 23 — about 7.8 months when the water holds above 68°F.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 60 | 60 | 65 | 71 | 78 | 84 | 86 | 86 | 84 | 78 | 70 | 63 |
| Comfort | Cool | Cool | Cool | Refreshing | Warm | Tropical | Tropical | Tropical | Tropical | Warm | Refreshing | Cool |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 60 | Cool |
| Feb | 60 | Cool |
| Mar | 65 | Cool |
| Apr | 71 | Refreshing |
| May | 78 | Warm |
| Jun | 84 | Tropical |
| Jul | 86 | Tropical |
| Aug | 86 | Tropical |
| Sep | 84 | Tropical |
| Oct | 78 | Warm |
| Nov | 70 | Refreshing |
| Dec | 63 | Cool |
UV index in Lake Charles 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 Lake Charles peaks around July 12 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 | Very high | Extreme | 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 | Very high |
| May | 10 | Extreme |
| 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 Lake Charles 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 Lake Charles is worst in July — around 22 µg/m³ PM2.5 (moderate), about 2.8× the cleanest month (December, 8 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) | 11 | 10 | 11 | 11 | 14 | 18 | 22 | 17 | 12 | 9 | 12 | 8 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Good | Good | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 11 | Good |
| Feb | 10 | Good |
| Mar | 11 | Good |
| Apr | 11 | Good |
| May | 14 | Moderate |
| Jun | 18 | Moderate |
| Jul | 22 | Moderate |
| Aug | 17 | Moderate |
| Sep | 12 | Good |
| Oct | 9 | Good |
| Nov | 12 | Good |
| Dec | 8 | Good |
Where is Lake Charles?
Lake Charles sits at 30.2°N, 93.2°W, 13 ft above sea level, in United States. The nearest listed city is Sulphur, 11 mi away.
Topography around Lake Charles
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Lake Charles.
Within 2 miles, the terrain around Lake Charles has only modest variations in elevation — a maximum elevation change of 52 ft around an average of 20 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 171 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 335 ft.
The land around Lake Charles is covered by artificial surfaces (43%) and trees (34%) within 2 miles, trees (39%) and grassland (34%) within 10 miles, and trees (43%) 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 Lake Charles (30.2131°, -93.2044°, elevation 13 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.