Sihanoukville weather in March

In March, Sihanoukville sees average daytime highs of 29°C and overnight lows near 26°C, with 65 mm of rain across 13.5 wet days and about 11.9 hours of daylight. It is the 3rd-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 47% 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 Sihanoukville's 2nd-clearest and 6th-windiest month. For the whole year in context, see Sihanoukville's year-round climate.

Daytime high
29°
3rd warmest
Overnight low
26°
9th coldest
Rainfall
65 mm
13.5 wet days
Daylight
11 h 54 min
6:18 AM – 6:13 PM
Cloud cover
48%
2nd clearest
Wind
11 km/h
6th windiest
Solar energy
6.26 kWh/m²
Travel score
5.3
out of 10

Sihanoukville is city in Preah Sihanouk Province, Cambodia.

Density
913/km²
people per km²
Founded
1964

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 29°C through the month.

A typical March day in Sihanoukville reaches about 29°C in the afternoon and slips back to 26°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 30°C. Set against its neighbours, March runs on par with February and on par with April.

25°28°30°33°35°151015202531
Avg high (°C)Avg low (°C)
12826
22926
32926
42926
52926
62926
72926
82926
92926
102926
112926
122926
132926
142926
152926
162926
172926
182927
192927
202927
212927
222927
232927
242927
252927
262927
272927
282927
292927
302927
312927

How March really feels in Sihanoukville

Once humidity and wind are folded in, March averages 25 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
25
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.

Sihanoukville weather by month

How March compares with the rest of the year at a glance. March is the 3rd-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 26°379.811.46.4
Feb28° / 26°308.211.66.3
Mar29° / 26°6513.511.95.3
Apr29° / 27°1151912.24.2
May29° / 27°37827.912.53.1
Jun29° / 27°48927.712.63.1
Jul28° / 26°55829.412.63.1
Aug28° / 26°55628.912.33.3
Sep28° / 26°55428.412.13.4
Oct28° / 26°34327.111.83.6
Nov29° / 26°10415.411.54.8
Dec29° / 26°449.311.45.8

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 17% of March, with mostly cloudy or overcast conditions the remaining 36%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16733
26733
36733
46733
56733
66733
76733
86733
96832
106832
116832
126832
136733
146733
156634
166634
176535
186436
196337
206337
216238
226139
236139
246040
256040
266040
275941
285941
295941
305842
315842

Chance of precipitation in March

Any precipitation

Sihanoukville gets around 65 mm of rain over 13.5 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 43% and peaks near 52% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
137
237
338
438
538
639
739
839
939
1039
1139
1240
1340
1440
1541
1641
1742
1843
1944
2045
2146
2247
2347
2448
2549
2649
2750
2850
2951
3051
3152

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 80% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
14906
23916
33907
43898
52908
62899
728810
828711
928711
1028612
1118613
1218613
1318514
1418514
1518415
1618415
1718316
1808317
1908218
2008119
2117920
2217722
2317524
2417425
2517227
2617029
2716732
2816534
2916336
3016039
3115841

Wind in March

Winds average 11 km/h in March.

Across March, daily wind ranges from about 11 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

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 6:26 AM to 6:09 AM, and sunset from 6:12 PM to 6:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:266:12
211.86:256:13
311.86:256:13
411.86:246:13
511.86:246:13
611.86:236:13
711.86:236:13
811.86:226:13
911.96:226:13
1011.96:216:13
1111.96:216:13
1211.96:206:13
1311.96:196:13
1411.96:196:13
1511.96:186:13
1611.96:186:13
1711.96:176:13
1811.96:176:13
1912.06:166:13
2012.06:156:13
2112.06:156:13
2212.06:146:13
2312.06:136:13
2412.06:136:13
2512.06:126:13
2612.06:126:13
2712.06:116:13
2812.06:106:13
2912.16:106:13
3012.16:096:13
3112.16:096:13

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 6.26 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 4.56 kWh/m² to a high of 6.26 kWh/m² in March across the year — March's 6.26 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.2Intense
36.2Intense
46.2Intense
56.2Intense
66.2Intense
76.2Intense
86.2Intense
96.2Intense
106.2Intense
116.2Intense
126.3Intense
136.3Intense
146.3Intense
156.3Intense
166.3Intense
176.3Intense
186.3Intense
196.3Intense
206.3Intense
216.3Intense
226.3Intense
236.3Intense
246.3Intense
256.3Intense
266.3Intense
276.3Intense
286.3Intense
296.3Intense
306.3Intense
316.3Intense
Planning a trip in March

Hazard calendar for Sihanoukville

In seasonPeak

In March, Sihanoukville sits inside its pacific typhoon season. The full year is below, with each hazard's peak months called out.

Sihanoukville sits in the Pacific typhoon belt; the season peaks July–October.

Sihanoukville's monsoon runs May–October, when most of the year's rain falls.

Pacific typhoon
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is March a good time to visit Sihanoukville?

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

5.3
Sightseeing
4th-best month of the year
6.7
Beach & pool
4th-best month of the year

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

What to pack for Sihanoukville in March

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

In March, Sihanoukville sees daytime highs around 29°C and nights near 26°C. Pack light clothes and sun protection. Worth having: rain gear. About 14 days see rain.

light clothessun protectionrain gear

Sea temperature near Sihanoukville 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 offshore is warmest in May at about 31°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
Jan28Tropical
Feb28Tropical
Mar29Tropical
Apr30Tropical
May31Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov29Tropical
Dec29Tropical

UV index in Sihanoukville in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Sihanoukville peaks around August 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 12 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 18UV 13Dec 12UV 9
UV index (midday)Level
Jan10Extreme
Feb11Extreme
Mar12Extreme
Apr12Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep13Extreme
Oct11Extreme
Nov9Very high
Dec9Very high

Air quality in Sihanoukville 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 Sihanoukville is worst in February — around 24 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (September, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateGoodModerateFeb 1423 µg/m³Sep 2210 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb24Moderate
Mar19Moderate
Apr17Moderate
May12Moderate
Jun12Good
Jul14Moderate
Aug11Good
Sep10Good
Oct11Good
Nov12Good
Dec15Moderate
Location & terrain

Where is Sihanoukville?

Sihanoukville sits at 10.6°N, 103.5°E, 6 m above sea level, in Cambodia. The nearest listed city is Phu Quoc, 65 km away.

Phu QuocKampotHàm NinhKepHà TiênSmach Mean CheyKoh KongÂngk Tasaôm

Topography around Sihanoukville

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

Within 3 km, the terrain around Sihanoukville has only modest variations in elevation — a maximum elevation change of 124 m around an average of 21 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 288 m; within 80 km, large variations in elevation — a maximum elevation change of 1,064 m.

The land around Sihanoukville is covered by artificial surfaces (36%) and water (28%) within 3 km, water (62%) and trees (20%) within 16 km, and water (63%) and trees (26%) within 80 km.

3 km
124 m
16 km
288 m
80 km
1,064 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
March weather nearby: Phu Quoc 65 km · Kampot 71 km · Hàm Ninh 74 km · Kep 87 km · Hà Tiên 108 km · Smach Mean Chey 117 km · Koh Kong 127 km · Ângk Tasaôm 133 km

Cambodia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / C / G
230 V · 50 Hz
Prices
≈ 34% of US
price level, 2025
GDP per capita
$2,872
2025
Happiness
4.5 / 10
World Happiness, 2025
Safe drinking water
30%
of population, 2024
Homicide rate
1.8
per 100k, 2011
Road deaths
19.6
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Very low
EF EPI 390
Religion
Buddhist 97%Muslim 2%other 1%Christian 0%

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 Sihanoukville (10.6093°, 103.5296°, elevation 6 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).