Móng Cái weather in March

In March, Móng Cái sees average daytime highs of 21°C and overnight lows near 18°C, with 74 mm of rain across 13.1 wet days and about 11.8 hours of daylight. It is the 9th-warmest and 7th-wettest month of the year here.

Highs climb over the month, from about 19°C in the first days to 22°C by the end. The sky is clear or mostly clear about 13% of the time in March, and the air most often feels muggy.

Daylight stretches from about 11 h 30 min at the start of March to 12 h 12 min by month's end. Set against the rest of the year, March is Móng Cái's 8th-clearest and 9th-windiest month. For the whole year in context, see Móng Cái's year-round climate.

Daytime high
21°
9th warmest
Overnight low
18°
4th coldest
Rainfall
74 mm
13.1 wet days
Daylight
11 h 48 min
6:02 AM – 5:53 PM
Cloud cover
72%
8th clearest
Wind
12 km/h
9th windiest
Solar energy
3.71 kWh/m²
Travel score
5.7
out of 10

Móng Cái is provincial city of Vietnam.

Density
211/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 19°C in the first days to 22°C by the end.

A typical March day in Móng Cái reaches about 21°C in the afternoon and slips back to 18°C overnight — a 3°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 24°C. Set against its neighbours, March runs about 3°C warmer than February and about 4°C cooler than April.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
11917
21917
31917
41917
52017
62017
72017
82017
92017
102017
112018
122018
132018
142018
152018
162118
172118
182118
192118
202119
212119
222119
232119
242119
252219
262219
272219
282219
292220
302220
312220

How March really feels in Móng Cái

Once humidity and wind are folded in, March averages 0 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
0
heat index over the day's high
Days feeling ≤ C
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.

Móng Cái weather by month

How March compares with the rest of the year at a glance. March is the 9th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan17° / 14°6912.710.85.0
Feb18° / 15°501111.35.4
Mar21° / 18°7413.111.85.7
Apr24° / 22°7112.712.56.2
May28° / 25°20919134.8
Jun30° / 27°28823.513.33.4
Jul30° / 27°3802513.23.2
Aug30° / 27°37424.612.73.3
Sep29° / 26°25318.612.14.3
Oct27° / 24°9910.311.56.7
Nov23° / 20°679.1117.1
Dec19° / 16°538.810.76.3

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 13% of the time in March.

Beyond those clear spells, partly cloudy skies cover about 16% of March, with mostly cloudy or overcast conditions the remaining 71%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13268
23268
33169
43268
53367
63268
73169
83169
93169
102971
113070
123070
132971
142872
152773
162773
172773
182773
192872
202872
212872
222872
232872
242872
252872
262773
272872
282872
292872
302872
312971

Chance of precipitation in March

Any precipitation

Móng Cái gets around 74 mm of rain over 13.1 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 47% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
140
240
340
440
540
640
740
840
940
1041
1141
1241
1342
1442
1542
1643
1743
1843
1943
2043
2144
2244
2344
2444
2544
2645
2745
2846
2946
3047
3147

Humidity in March

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, March lands in the muggy band about 34% of days. Sticky, muggy-or-worse air turns up on roughly 46% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
12920222550
22820222550
32720222560
42621222660
52421232660
62321232760
72221232860
82121242960
92020243060
101920243160
111819243270
121719243370
131618243580
141518233680
151517233790
161417223790
1713172238100
1813162238110
1912162239120
2011152239130
2111152239140
2211142239140
2310142139150
2410142139160
2510132139170
269132138190
279132038200
289122038210
298122037220
308122036241
317111936261

Wind in March

Winds average 12 km/h in March.

Across March, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 h 30 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 42 minutes over March. Sunrise moves from 6:15 AM to 5:48 AM, and sunset from 5:47 PM to 5:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:155:47
211.66:155:48
311.66:145:48
411.66:135:49
511.66:125:49
611.66:115:49
711.76:105:50
811.76:105:50
911.76:095:51
1011.76:085:51
1111.76:075:51
1211.86:065:52
1311.86:055:52
1411.86:045:52
1511.86:035:53
1611.86:025:53
1711.96:015:54
1811.96:015:54
1911.96:005:54
2011.95:595:55
2112.05:585:55
2212.05:575:55
2312.05:565:56
2412.05:555:56
2512.05:545:56
2612.15:535:56
2712.15:525:57
2812.15:515:57
2912.15:505:57
3012.15:495:58
3112.25:485:58

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 3.71 kWh/m².

For context, solar energy here swings from a low near 2.69 kWh/m² to a high of 5.1 kWh/m² in May across the year — March's 3.71 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
13.4Moderate
23.4Moderate
33.4Moderate
43.4Moderate
53.5Moderate
63.5Moderate
73.5Moderate
83.5Moderate
93.5Moderate
103.5Moderate
113.6Moderate
123.6Moderate
133.6Moderate
143.6Moderate
153.6Moderate
163.7Moderate
173.7Moderate
183.7Moderate
193.7Moderate
203.8Moderate
213.8Moderate
223.8Moderate
233.8Moderate
243.9Moderate
253.9Moderate
263.9Moderate
273.9Moderate
284.0Moderate
294.0Moderate
304.0Bright
314.0Bright
Planning a trip in March

Hazard calendar for Móng Cái

In seasonPeak

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

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

Móng Cái's monsoon runs May–September, 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 Móng Cái?

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

5.7
Sightseeing
5th-best month of the year
3.3
Beach & pool
9th-best month of the year

March is a reasonable time to visit Móng Cái for sightseeing.

What to pack for Móng Cái in March

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

In March, Móng Cái sees daytime highs around 21°C and nights near 18°C. Worth packing: rain gear. About 13 days see rain.

rain gear

Sea temperature near Móng Cái in March

The nearest coast averages about 20°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 19 km away) is warmest in August at about 30°C and coldest in February near 19°C.

It's comfortable for a long swim from Mar 15 to Dec 30 — about 9.6 months when the water holds above 20°C.

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan19Cool
Feb19Cool
Mar20Refreshing
Apr23Refreshing
May27Warm
Jun29Tropical
Jul29Tropical
Aug30Tropical
Sep29Tropical
Oct27Warm
Nov24Warm
Dec21Refreshing

UV index in Móng Cái in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Móng Cái peaks around July 9 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighJul 9UV 12Dec 17UV 6
UV index (midday)Level
Jan6High
Feb8Very high
Mar9Very high
Apr8Very high
May10Very high
Jun12Extreme
Jul12Extreme
Aug8Very high
Sep9Very high
Oct9Very high
Nov7High
Dec6High

Air quality in Móng Cái 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 Móng Cái is worst in December — around 46 µg/m³ PM2.5 (poor), about 2.8× the cleanest month (July, 16 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorDec 2346 µg/m³Jul 1416 µg/m³
PM2.5 (µg/m³)Level
Jan45Poor
Feb42Poor
Mar44Poor
Apr38Poor
May25Moderate
Jun17Moderate
Jul16Moderate
Aug18Moderate
Sep25Moderate
Oct32Moderate
Nov35Moderate
Dec46Poor
Location & terrain

Where is Móng Cái?

Móng Cái sits at 21.5°N, 108.0°E, 9 m above sea level, in Vietnam. The nearest listed city is Thị Trấn Đầm Hà, 43 km away.

Cẩm PhảThị Trấn Na DươngHa LongLạng Sơn

Topography around Móng Cái

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

Within 3 km, the terrain around Móng Cái has only modest variations in elevation — a maximum elevation change of 43 m around an average of 8 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 367 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,472 m.

The land around Móng Cái is covered by artificial surfaces (38%) and trees (24%) within 3 km, water (44%) and trees (38%) within 16 km, and trees (53%) and water (40%) within 80 km.

3 km
43 m
16 km
367 m
80 km
1,472 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
March weather nearby: Thị Trấn Đầm Hà 43 km · Thị Trấn Tiên Yên 62 km · Thị Trấn Ba Chẽ 76 km · Cẩm Phả Mines 89 km · Cẩm Phả 92 km · Thị Trấn Na Dương 106 km · Ha Long 112 km · Lạng Sơn 130 km

Vietnam travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B / C / F
220 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$5,066
2025
Happiness
6.4 / 10
World Happiness, 2025
Safe drinking water
59%
of population, 2024
Homicide rate
1.5
per 100k, 2011
Road deaths
30.6
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 500
Religion
none 86%Catholic 6%Buddhist 6%Protestant 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 Móng Cái (21.5247°, 107.9662°, elevation 9 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).