Sulphur weather in April

In April, Sulphur sees average daytime highs of 77°F and overnight lows near 60°F, with 4.7 in of rain across 10 wet days and about 12.7 hours of daylight. It is the 7th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 75°F in the first days to 80°F by the end. The sky is clear or mostly clear about 34% of the time in April, and the air most often feels dry.

Daylight stretches from about 12 h 18 min at the start of April to 13 h 06 min by month's end. Set against the rest of the year, April is Sulphur's 4th-clearest and 1st-windiest month. For the whole year in context, see Sulphur's year-round climate.

Daytime high
77°
7th warmest
Overnight low
60°
6th coldest
Rainfall
4.7 in
10 wet days
Daylight
12 h 42 min
5:52 AM – 6:36 PM
Cloud cover
54%
4th clearest
Wind
8 mph
1st windiest
Solar energy
5.65 kWh/m²
Travel score
6.9
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 April

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 75°F in the first days to 80°F by the end.

A typical April day in Sulphur reaches about 77°F in the afternoon and slips back to 60°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 70°F and 83°F. Set against its neighbours, April runs about 6°F warmer than March and about 7°F cooler than May.

40°50°60°70°80°151015202530
Avg high (°F)Avg low (°F)
17457
27457
37558
47558
57558
67558
77558
87658
97658
107659
117659
127659
137659
147759
157760
167760
177760
187860
197860
207861
217861
227861
237962
247962
257962
268062
278063
288063
298063
308064

How April really feels in Sulphur

Once humidity and wind are folded in, April averages 0 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
0
heat index over the day's high
Days feeling ≤ 32°F
0
wind chill below the day's low

April sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Sulphur weather by month

How April compares with the rest of the year at a glance. April is the 7th-warmest and 6th-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 April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 34% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 18% of April, with mostly cloudy or overcast conditions the remaining 48%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
14852
24852
34753
44852
54852
64852
74852
84951
94951
104951
115050
125050
135149
145149
155149
165248
175248
185248
195347
205446
215446
225545
235545
245644
255644
265743
275743
285743
295743
305743

Chance of precipitation in April

Any precipitation

Sulphur gets around 4.7 in of rain over 10 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 33% and peaks near 34% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
134
234
334
434
534
633
733
833
933
1032
1132
1232
1332
1432
1532
1633
1733
1833
1934
2034
2134
2234
2334
2434
2534
2634
2734
2834
2934
3034

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the dry band about 30% of days. Sticky, muggy-or-worse air turns up on roughly 35% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1391620214
2381620214
3381620214
4381620215
5381620215
6371520216
7371520216
8371520226
9361520227
10361520237
11351519237
12341619247
13331619257
14321619267
15321619277
16311618287
17301618288
18291618298
19281617308
20271717319
21261717319
222517173110
232417173210
242317173211
252216173212
262116173213
272116183214
282015183116
292015183117
301915173119

Wind in April

Winds average 8 mph in April, the windiest month of the year.

Across April, daily wind ranges from about 8 mph on the calmest days to 8 mph at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (mph)Feels
18light breeze
28light breeze
38light breeze
48light breeze
58light breeze
68light breeze
78light breeze
88light breeze
98light breeze
108light breeze
118light breeze
128light breeze
138light breeze
148light breeze
158light breeze
168light breeze
178light breeze
188light breeze
198light breeze
208light breeze
218light breeze
228light breeze
238light breeze
248light breeze
258light breeze
268light breeze
278light breeze
288light breeze
298light breeze
308light breeze

Sunrise & sunset in April

DaylightNight

Daylight runs from about 12 h 18 min at the start of April to 13 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 48 minutes over April. Sunrise moves from 6:10 AM to 5:37 AM, and sunset from 6:26 PM to 6:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:106:26
212.36:096:27
312.36:076:28
412.46:066:28
512.46:056:29
612.46:046:29
712.56:036:30
812.56:016:31
912.56:006:31
1012.65:596:32
1112.65:586:33
1212.65:566:33
1312.65:556:34
1412.75:546:34
1512.75:536:35
1612.75:526:36
1712.85:516:36
1812.85:506:37
1912.85:486:38
2012.85:476:38
2112.95:466:39
2212.95:456:40
2312.95:446:40
2413.05:436:41
2513.05:426:41
2613.05:416:42
2713.05:406:43
2813.15:396:43
2913.15:386:44
3013.15:376:45

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.65 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 — April's 5.65 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.1Bright
25.2Bright
35.2Bright
45.2Bright
55.3Bright
65.3Bright
75.3Bright
85.4Bright
95.4Bright
105.5Bright
115.5Bright
125.5Bright
135.6Bright
145.6Bright
155.7Bright
165.7Bright
175.7Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.9Bright
235.9Bright
245.9Bright
256.0Bright
266.0Bright
276.0Bright
286.0Intense
296.0Intense
306.0Intense
Planning a trip in April

Hazard calendar for Sulphur

In seasonPeak

None of Sulphur's seasonal hazards are active in April. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

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 April a good time to visit Sulphur?

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

6.9
Sightseeing
2nd-best month of the year
6.2
Beach & pool
4th-best month of the year

April is a reasonable time to visit Sulphur for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Sulphur in April

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

In April, Sulphur sees daytime highs around 77°F and nights near 60°F. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

Sea temperature near Sulphur in April

The nearest coast averages about 71°F in April — 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 April

LowModerateHighVery highExtreme

Clear-sky midday UV in April 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 April

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where April 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
April 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).