Sulphur weather in July

In July, Sulphur sees average daytime highs of 90°F and overnight lows near 75°F, with 4.5 in of rain across 16.2 wet days and about 13.8 hours of daylight. It is the 2nd-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 90°F through the month. The sky is clear or mostly clear about 31% of the time in July, and the air most often feels miserable.

Daylight stretches from about 13 h 54 min at the start of July to 13 h 30 min by month's end. Set against the rest of the year, July is Sulphur's 11th-clearest and 11th-windiest month. For the whole year in context, see Sulphur's year-round climate.

Daytime high
90°
2nd warmest
Overnight low
75°
12th coldest
Rainfall
4.5 in
16.2 wet days
Daylight
13 h 48 min
5:26 AM – 7:12 PM
Cloud cover
60%
11th clearest
Wind
5 mph
11th windiest
Solar energy
6.15 kWh/m²
Travel score
3.3
out of 10

Sulphur is suburb city of Lake Charles, located in Calcasieu Parish, Louisiana, United States.

Density
780/km²
people per km²

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 90°F through the month.

A typical July day in Sulphur reaches about 90°F in the afternoon and slips back to 75°F overnight — a 15°F spread between the day's warmth and the night's chill. On most days the high lands between 85°F and 94°F. Set against its neighbours, July runs about 2°F warmer than June and on par with August.

70°80°90°151015202531
Avg high (°F)Avg low (°F)
18975
28975
38975
48975
58975
69075
79075
89075
99075
109075
119076
129076
139076
149076
159076
169076
179076
189076
199076
209076
219076
229076
239076
249076
259076
269176
279176
289176
299176
309176
319176

How July really feels in Sulphur

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.

Sulphur weather by month

How July compares with the rest of the year at a glance. July is the 2nd-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°F)Rainfall (inches)Wet daysDaylight (hours)Travel score
Jan61° / 44°5.19.910.35.2
Feb65° / 48°3.79.410.95.9
Mar71° / 54°4.110.311.86.6
Apr77° / 60°4.71012.76.9
May84° / 68°4.211.113.55.6
Jun88° / 74°5.515.413.93.8
Jul90° / 75°4.516.213.83.3
Aug91° / 75°4.915.713.13.3
Sep87° / 70°5.111.512.24.6
Oct80° / 61°3.98.211.37.0
Nov70° / 51°4.38.810.56.8
Dec63° / 46°4.99.710.15.7

Cloud cover in July

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

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

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25149
35149
45149
55149
65149
75149
85050
94951
104951
114951
124951
134852
144852
154852
164753
174852
184852
194852
204753
214753
224951
234951
244951
255050
265050
275248
285248
295248
305248
315347

Chance of precipitation in July

Any precipitation

Sulphur gets around 4.5 in of rain over 16.2 wet days in July. 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 55% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
155
254
354
453
553
653
753
854
954
1054
1155
1255
1355
1455
1554
1654
1754
1854
1953
2053
2152
2252
2351
2450
2549
2648
2747
2847
2946
3046
3146

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the miserable band about 48% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202531
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
11235539
21235440
31135441
40125542
50125443
60125443
70125344
80125245
90125245
100125146
110025246
120025147
130024948
140024949
150024849
160134750
170134650
180134551
190134452
200134353
210144253
220244153
230244054
240244054
250254053
260254053
270254053
280254152
290254152
300254251
310254251

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 13 h 54 min 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 24 minutes over July. Sunrise moves from 5:19 AM to 5:35 AM, and sunset from 7:15 PM to 7:05 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
113.95:197:15
213.95:197:15
313.95:207:15
413.95:207:15
513.95:217:15
613.95:217:15
713.95:217:14
813.95:227:14
913.95:227:14
1013.95:237:14
1113.85:237:14
1213.85:247:14
1313.85:247:13
1413.85:257:13
1513.85:257:13
1613.85:267:12
1713.85:267:12
1813.75:277:12
1913.75:287:11
2013.75:287:11
2113.75:297:10
2213.75:297:10
2313.75:307:09
2413.65:307:09
2513.65:317:08
2613.65:327:08
2713.65:327:07
2813.65:337:07
2913.55:337:06
3013.55:347:05
3113.55:357:05

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 6.15 kWh/m².

For context, solar energy here swings from a low near 2.64 kWh/m² to a high of 6.16 kWh/m² in June across the year — July's 6.15 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.1Intense
56.1Intense
66.2Intense
76.2Intense
86.2Intense
96.2Intense
106.2Intense
116.2Intense
126.2Intense
136.2Intense
146.2Intense
156.2Intense
166.2Intense
176.2Intense
186.2Intense
196.2Intense
206.1Intense
216.1Intense
226.1Intense
236.1Intense
246.1Intense
256.1Intense
266.1Intense
276.1Intense
286.1Intense
296.1Intense
306.1Intense
316.1Intense
Planning a trip in July

Hazard calendar for Sulphur

In seasonPeak

In July, Sulphur sits inside its atlantic hurricane season. The full year is below, with each hazard's peak months called out.

Sulphur 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 July a good time to visit Sulphur?

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

3.3
Sightseeing
11th-best month of the year
5.5
Beach & pool
7th-best month of the year

July is a weaker month for outdoor sightseeing in Sulphur.

What to pack for Sulphur in July

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

In July, Sulphur sees daytime highs around 90°F and nights near 75°F. Pack light clothes, rain gear and sun protection. About 16 days see rain.

light clothesrain gearsun protection

Sea temperature near Sulphur in July

The nearest coast averages about 86°F in July — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 42 mi away) is warmest in August at about 86°F and coldest in January near 59°F.

It's comfortable for a long swim from Apr 1 to Nov 22 — about 7.8 months when the water holds above 68°F.

60°70°80°90°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°F)Comfort
Jan59Cool
Feb60Cool
Mar65Cool
Apr71Refreshing
May78Warm
Jun84Tropical
Jul86Tropical
Aug86Tropical
Sep84Tropical
Oct78Warm
Nov69Refreshing
Dec63Cool

UV index in Sulphur 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 Sulphur 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 Sulphur 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 Sulphur is worst in July — around 22 µg/m³ PM2.5 (moderate), about 2.7× the cleanest month (December, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1522 µg/m³Dec 168 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar12Good
Apr11Good
May13Moderate
Jun18Moderate
Jul22Moderate
Aug17Moderate
Sep14Moderate
Oct11Good
Nov9Good
Dec8Good
Location & terrain

Where is Sulphur?

Sulphur sits at 30.2°N, 93.4°W, 16 ft above sea level, in United States. The nearest listed city is Lake Charles, 11 mi away.

Topography around Sulphur

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

Within 2 miles, the terrain around Sulphur has only modest variations in elevation — a maximum elevation change of 82 ft around an average of 26 ft above sea level; within 10 miles, only modest variations in elevation — a maximum elevation change of 144 ft; within 50 miles, only modest variations in elevation — a maximum elevation change of 381 ft.

The land around Sulphur is covered by trees (55%) and grassland (25%) within 2 miles, trees (53%) and grassland (28%) within 10 miles, and trees (48%) within 50 miles.

2 miles
82 ft
10 miles
144 ft
50 miles
381 ft
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
July weather nearby: Lake Charles 11 mi · Orange 24 mi · Groves 38 mi · Nederland 41 mi · Port Arthur 42 mi · Beaumont 45 mi · Opelousas 80 mi · Lafayette 81 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 Sulphur (30.2366°, -93.3774°, elevation 16 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).