Lang Suan weather in March

In March, Lang Suan sees average daytime highs of 32°C and overnight lows near 23°C, with 93 mm of rain across 11.5 wet days and about 11.9 hours of daylight. It is the 3rd-warmest and 10th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 41% of the time in March, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of March to 12 h 06 min by month's end. Set against the rest of the year, March is Lang Suan's 2nd-clearest and 9th-windiest month. For the whole year in context, see Lang Suan's year-round climate.

Daytime high
32°
3rd warmest
Overnight low
23°
4th coldest
Rainfall
93 mm
11.5 wet days
Daylight
11 h 54 min
6:35 AM – 6:31 PM
Cloud cover
51%
2nd clearest
Wind
8 km/h
9th windiest
Solar energy
6.29 kWh/m²
Travel score
3.9
out of 10

Lang Suan is town in Lang Suan district, Chumphon province, Thailand.

Founded
1940

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical March day in Lang Suan reaches about 32°C in the afternoon and slips back to 23°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 34°C. Set against its neighbours, March runs about 1°C warmer than February and about 1°C cooler than April.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13122
23122
33222
43222
53222
63222
73222
83222
93222
103222
113223
123223
133223
143223
153223
163223
173223
183223
193223
203223
213223
223223
233223
243223
253223
263223
273223
283223
293223
303323
313324

How March really feels in Lang Suan

Once humidity and wind are folded in, March averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in March is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Lang Suan weather by month

How March compares with the rest of the year at a glance. March is the 3rd-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 22°6810.411.55.3
Feb31° / 22°387.811.75.0
Mar32° / 23°9311.511.93.9
Apr33° / 24°11816.112.22.9
May32° / 25°20124.312.42.4
Jun31° / 25°18821.712.62.9
Jul31° / 24°20623.312.53.0
Aug31° / 24°22524.712.32.9
Sep30° / 24°30226.612.12.8
Oct30° / 23°32627.411.82.9
Nov29° / 23°21421.911.53.7
Dec29° / 22°10313.811.45.0

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 19% of March, with mostly cloudy or overcast conditions the remaining 40%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16832
26832
36931
46832
56832
66832
76832
86832
96832
106733
116733
126634
136535
146337
156238
166040
175941
185743
195644
205545
215446
225347
235248
245149
255149
265050
275050
285050
295050
305050
315050

Chance of precipitation in March

Any precipitation

Lang Suan gets around 93 mm of rain over 11.5 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 38% and peaks near 50% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
128
228
328
429
529
629
730
830
931
1031
1132
1233
1334
1435
1536
1637
1738
1839
1940
2041
2142
2243
2344
2445
2546
2647
2748
2849
2949
3050
3150

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the oppressive band about 79% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
111854
211854
311845
412835
512835
612826
712826
811836
911836
1011836
1111827
1210837
1310828
149838
159829
1688210
1778211
1878112
1968113
2058015
2157916
2247818
2347719
2437621
2537423
2637324
2727226
2827127
2927028
3026929
3126929

Wind in March

Winds average 8 km/h in March.

Across March, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 h 48 min at the start of March to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over March. Sunrise moves from 6:43 AM to 6:26 AM, and sunset from 6:31 PM to 6:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:436:31
211.86:436:31
311.86:426:31
411.86:426:31
511.86:416:31
611.86:416:31
711.86:406:31
811.96:406:31
911.96:396:31
1011.96:396:31
1111.96:386:31
1211.96:386:31
1311.96:376:31
1411.96:376:31
1511.96:366:31
1611.96:356:31
1711.96:356:31
1812.06:346:31
1912.06:346:31
2012.06:336:31
2112.06:326:31
2212.06:326:31
2312.06:316:31
2412.06:316:31
2512.06:306:31
2612.06:296:31
2712.06:296:31
2812.06:286:31
2912.16:286:31
3012.16:276:31
3112.16:266:31

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 6.29 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.38 kWh/m² to a high of 6.29 kWh/m² in March across the year — March's 6.29 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.3Intense
46.3Intense
56.3Intense
66.3Intense
76.3Intense
86.3Intense
96.3Intense
106.3Intense
116.3Intense
126.3Intense
136.3Intense
146.3Intense
156.3Intense
166.3Intense
176.3Intense
186.3Intense
196.3Intense
206.3Intense
216.3Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
316.3Intense
Planning a trip in March

Hazard calendar for Lang Suan

In seasonPeak

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

Lang Suan sits in the North Indian Ocean cyclone zone; the season peaks May and October–November.

Lang Suan's rainy season runs May–November, when most of the year's rain falls.

Cyclone
Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is March a good time to visit Lang Suan?

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

3.9
Sightseeing
4th-best month of the year
6.3
Beach & pool
3rd-best month of the year

March is a weaker month for outdoor sightseeing in Lang Suan. The water and warmth also suit a beach or pool day.

What to pack for Lang Suan in March

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

In March, Lang Suan sees daytime highs around 32°C and nights near 23°C. Pack light clothes and sun protection. Worth having: rain gear. About 12 days see rain.

light clothessun protectionrain gear

Sea temperature near Lang Suan in March

The nearest coast averages about 29°C 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 33 km away) is warmest in May at about 30°C and coldest in January near 28°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Warm
Feb28Tropical
Mar29Tropical
Apr30Tropical
May30Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec28Warm

UV index in Lang Suan in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Lang Suan peaks around August 20 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 9 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highAug 20UV 13Dec 20UV 9
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep13Extreme
Oct11Extreme
Nov10Very high
Dec9Very high

Air quality in Lang Suan 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 Lang Suan is worst in January — around 19 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJan 2318 µg/m³Oct 1613 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb18Moderate
Mar18Moderate
Apr18Moderate
May15Moderate
Jun14Moderate
Jul15Moderate
Aug13Moderate
Sep13Moderate
Oct13Moderate
Nov13Moderate
Dec14Moderate
Location & terrain

Where is Lang Suan?

Lang Suan sits at 9.9°N, 99.1°E, 11 m above sea level, in Thailand. The nearest listed city is Ranong, 49 km away.

Surat ThaniTha KhamKo SamuiKo Pha-ngan

Topography around Lang Suan

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Lang Suan.

Within 3 km, the terrain around Lang Suan has only modest variations in elevation — a maximum elevation change of 131 m around an average of 13 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 780 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,296 m.

The land around Lang Suan is covered by trees (78%) within 3 km, trees (74%) within 16 km, and trees (50%) and water (47%) within 80 km.

3 km
131 m
16 km
780 m
80 km
1,296 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
March weather nearby: Ranong 49 km · Kawthaung 58 km · Chumphon 62 km · Ko Tao 85 km · Surat Thani 94 km · Tha Kham 94 km · Ko Samui 104 km · Ko Pha-ngan 106 km

Thailand travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B / C
230 V · 50 Hz
Prices
≈ 31% of US
price level, 2025
GDP per capita
$8,057
2025
Happiness
6.3 / 10
World Happiness, 2025
Homicide rate
4.8
per 100k, 2011
Road deaths
32.2
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very low
EF EPI 402
Religion
Buddhist 93%Muslim 5%Christian 1%other 1%

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 Lang Suan (9.9456°, 99.0785°, elevation 11 m), 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).