Lake Charles weather in August

In August, Lake Charles sees average daytime highs of 91°F and overnight lows near 75°F, with 4.6 in of rain across 16 wet days and about 13.1 hours of daylight. It is the 1st-warmest and 6th-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 31% 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 Lake Charles's 10th-clearest and 12th-windiest month. For the whole year in context, see Lake Charles's year-round climate.

Daytime high
91°
1st warmest
Overnight low
75°
11th coldest
Rainfall
4.6 in
16 wet days
Daylight
13 h 06 min
5:44 AM – 6:50 PM
Cloud cover
59%
10th clearest
Wind
5 mph
12th windiest
Solar energy
5.75 kWh/m²
Travel score
3.2
out of 10

Lake Charles is parish seat of Calcasieu Parish, Louisiana, United States.

Density
656/km²
people per km²
Founded
1861

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 Lake Charles reaches about 91°F in the afternoon and slips back to 75°F overnight — a 16°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.

70°80°90°100°151015202531
Avg high (°F)Avg low (°F)
19175
29175
39175
49175
59175
69175
79175
89175
99175
109175
119175
129175
139175
149175
159175
169175
179175
189175
199175
209175
219174
229174
239074
249074
259074
269074
279074
289074
299074
309074
319073

How August really feels in Lake Charles

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.

Lake Charles weather by month

How August compares with the rest of the year at a glance. August is the 1st-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan62° / 44°5.19.910.35.2
Feb65° / 47°3.89.410.95.9
Mar71° / 53°4.110.411.86.6
Apr77° / 60°4.69.812.76.9
May84° / 68°4.010.513.55.6
Jun89° / 73°5.214.913.93.8
Jul90° / 75°4.516.413.83.3
Aug91° / 75°4.61613.13.2
Sep87° / 70°4.811.712.24.5
Oct80° / 60°3.88.311.37.0
Nov70° / 51°4.28.710.56.9
Dec63° / 46°4.99.510.15.7

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 19% of August, with mostly cloudy or overcast conditions the remaining 50%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25149
35149
45050
55050
65050
75050
85050
94852
104852
114852
124951
134951
144951
154951
164951
174951
184951
194951
205050
215050
225050
235050
245050
255050
265050
275050
285050
295050
305149
315149

Chance of precipitation in August

Any precipitation

Lake Charles gets around 4.6 in of rain over 16 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 52% and peaks near 56% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
147
247
347
447
547
648
748
848
949
1049
1150
1251
1352
1453
1553
1654
1754
1855
1955
2055
2155
2256
2356
2456
2556
2656
2755
2855
2954
3053
3152

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 50% of days. Sticky, muggy-or-worse air turns up on roughly 96% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
100254548
200254647
300254647
400254746
500154845
600154845
700154944
810154943
911254943
1011254943
1111254843
1211264843
1311264843
1411264743
1511274742
1611274842
1711374841
1811374840
1911384939
2011385038
2111385037
2201495036
2301495234
2401495333
25014105332
26014105431
27015105529
28015105628
29016115527
30126115426
31127115524

Wind in August

Winds average 5 mph in August, the calmest month.

Across August, 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 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 5:35 AM to 5:53 AM, and sunset from 7:03 PM to 6:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.55:357:03
213.55:357:02
313.45:367:02
413.45:367:01
513.45:377:00
613.45:386:59
713.35:386:58
813.35:396:58
913.35:406:57
1013.35:406:56
1113.25:416:55
1213.25:416:54
1313.25:426:53
1413.25:436:52
1513.15:436:51
1613.15:446:50
1713.15:446:49
1813.05:456:48
1913.05:466:47
2013.05:466:46
2113.05:476:45
2212.95:476:44
2312.95:486:42
2412.95:496:41
2512.85:496:40
2612.85:506:39
2712.85:506:38
2812.85:516:37
2912.75:526:35
3012.75:526:34
3112.75:536:33

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 5.75 kWh/m².

For context, solar energy here swings from a low near 2.65 kWh/m² to a high of 6.18 kWh/m² in May across the year — August's 5.75 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.1Intense
56.0Intense
66.0Intense
76.0Intense
86.0Bright
96.0Bright
105.9Bright
115.9Bright
125.9Bright
135.8Bright
145.8Bright
155.8Bright
165.7Bright
175.7Bright
185.7Bright
195.6Bright
205.6Bright
215.6Bright
225.5Bright
235.5Bright
245.5Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in August

Hazard calendar for Lake Charles

In seasonPeak

In August, Lake Charles sits inside 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.

Atlantic hurricane
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is August a good time to visit Lake Charles?

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

3.2
Sightseeing
12th-best month of the year
5.5
Beach & pool
7th-best month of the year

August is a weaker month for outdoor sightseeing in Lake Charles.

What to pack for Lake Charles in August

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

In August, Lake Charles sees daytime highs around 91°F and nights near 75°F. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

light clothesrain gearsun protection

Sea temperature near Lake Charles in August

The nearest coast averages about 86°F in August — 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.

60°70°80°90°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan60Cool
Feb60Cool
Mar65Cool
Apr71Refreshing
May78Warm
Jun84Tropical
Jul86Tropical
Aug86Tropical
Sep84Tropical
Oct78Warm
Nov70Refreshing
Dec63Cool

UV index in Lake Charles in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August 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 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highExtremeVery highHighModerateJul 12UV 10Dec 21UV 4
UV index (midday)Level
Jan4Moderate
Feb6High
Mar7High
Apr10Very high
May10Extreme
Jun10Very high
Jul10Extreme
Aug9Very high
Sep8Very high
Oct6High
Nov5Moderate
Dec4Moderate

Air quality in Lake Charles 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 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).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1622 µg/m³Dec 188 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb10Good
Mar11Good
Apr11Good
May14Moderate
Jun18Moderate
Jul22Moderate
Aug17Moderate
Sep12Good
Oct9Good
Nov12Good
Dec8Good
Location & terrain

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.

2 miles
52 ft
10 miles
171 ft
50 miles
335 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
August weather nearby: Sulphur 11 mi · Orange 33 mi · Groves 47 mi · Port Arthur 50 mi · Nederland 50 mi · Beaumont 54 mi · Opelousas 70 mi · Lafayette 71 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 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. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).