Sulphur weather in March

In March, Sulphur sees average daytime highs of 71°F and overnight lows near 54°F, with 4.1 in of rain across 10.3 wet days and about 11.8 hours of daylight. It is the 8th-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 68°F in the first days to 74°F by the end. The sky is clear or mostly clear about 32% of the time in March, and the air most often feels dry.

Daylight stretches from about 11 h 18 min at the start of March to 12 h 12 min by month's end. Set against the rest of the year, March is Sulphur's 7th-clearest and 2nd-windiest month. For the whole year in context, see Sulphur's year-round climate.

Daytime high
71°
8th warmest
Overnight low
54°
5th coldest
Rainfall
4.1 in
10.3 wet days
Daylight
11 h 48 min
6:30 AM – 6:16 PM
Cloud cover
58%
7th clearest
Wind
8 mph
2nd windiest
Solar energy
4.59 kWh/m²
Travel score
6.6
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 March

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 68°F in the first days to 74°F by the end.

A typical March day in Sulphur reaches about 71°F in the afternoon and slips back to 54°F overnight — a 17°F spread between the day's warmth and the night's chill. On most days the high lands between 61°F and 79°F. Set against its neighbours, March runs about 6°F warmer than February and about 6°F cooler than April.

40°60°80°151015202531
Avg high (°F)Avg low (°F)
16850
26850
36851
46851
56851
66951
76951
86952
96952
107052
117052
127053
137053
147153
157154
167154
177154
187255
197255
207255
217355
227355
237356
247356
257356
267356
277456
287456
297457
307457
317457

How March really feels in Sulphur

Once humidity and wind are folded in, March 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

March 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 March compares with the rest of the year at a glance. March is the 8th-warmest and 10th-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 March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 14% of March, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14555
24555
34555
44555
54555
64555
74555
84456
94456
104456
114456
124456
134456
144555
154555
164654
174654
184852
194852
204852
214951
224951
234951
244951
254852
264852
274852
284852
294852
304753
314852

Chance of precipitation in March

Any precipitation

Sulphur gets around 4.1 in of rain over 10.3 wet days in March. 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%151015202531
Rain chance (%)
134
234
334
434
534
634
734
834
934
1034
1134
1234
1334
1433
1533
1633
1732
1832
1932
2032
2132
2232
2332
2432
2532
2632
2733
2833
2933
3034
3134

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the dry band about 49% of days. Sticky, muggy-or-worse air turns up on roughly 15% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
160131890
260131890
360121990
460121990
560121990
6581220100
7571320100
8571320100
9551421100
10541421110
11531521110
12521521120
13511621120
14501621130
15491721130
16481722130
17471722140
18461822141
19451822141
20441822151
21431822161
22431822161
23421822171
24421822171
25421722181
26411721182
27411721192
28401721192
29401721202
30391721203
31391720213

Wind in March

Winds average 8 mph in March.

Across March, 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.

051015151015202531
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
318light breeze

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 h 18 min at the start of March to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 54 minutes over March. Sunrise moves from 6:47 AM to 6:11 AM, and sunset from 6:06 PM to 6:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.36:476:06
211.36:466:07
311.46:456:08
411.46:446:08
511.46:436:09
611.56:426:10
711.56:416:10
811.56:406:11
911.66:386:12
1011.66:376:12
1111.66:366:13
1211.66:356:14
1311.76:346:14
1411.76:326:15
1511.76:316:16
1611.86:306:16
1711.86:296:17
1811.86:286:18
1911.96:266:18
2011.96:256:19
2111.96:246:20
2212.06:236:20
2312.06:216:21
2412.06:206:21
2512.16:196:22
2612.16:186:23
2712.16:166:23
2812.16:156:24
2912.26:146:25
3012.26:126:25
3112.26:116:26

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 4.59 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 — March's 4.59 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
14.0Moderate
24.0Bright
34.0Bright
44.1Bright
54.1Bright
64.2Bright
74.2Bright
84.3Bright
94.3Bright
104.3Bright
114.4Bright
124.4Bright
134.5Bright
144.5Bright
154.5Bright
164.6Bright
174.6Bright
184.7Bright
194.7Bright
204.8Bright
214.8Bright
224.8Bright
234.9Bright
244.9Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in March

Hazard calendar for Sulphur

In seasonPeak

None of Sulphur's seasonal hazards are active in March. 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 March a good time to visit Sulphur?

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

6.6
Sightseeing
4th-best month of the year
4.4
Beach & pool
8th-best month of the year

March is a reasonable time to visit Sulphur for sightseeing.

What to pack for Sulphur in March

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

In March, Sulphur sees daytime highs around 71°F and nights near 54°F. Worth packing: rain gear and sun protection. About 10 days see rain.

rain gearsun protection

Sea temperature near Sulphur in March

The nearest coast averages about 65°F in March — 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 March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 7 — enough to warrant sun protection. 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 March

GoodModeratePoorUnhealthyVery unhealthy

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