Duyên Hải weather in March

In March, Duyên Hải sees average daytime highs of 29°C and overnight lows near 26°C, with 21 mm of rain across 3.5 wet days and about 11.9 hours of daylight. It is the 8th-warmest and 11th-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 48% 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 Duyên Hải's 1st-clearest and 3rd-windiest month. For the whole year in context, see Duyên Hải's year-round climate.

Daytime high
29°
8th warmest
Overnight low
26°
8th coldest
Rainfall
21 mm
3.5 wet days
Daylight
11 h 54 min
6:06 AM – 6:02 PM
Cloud cover
47%
1st clearest
Wind
18 km/h
3rd windiest
Solar energy
6.43 kWh/m²
Travel score
6.6
out of 10

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 Duyên Hải reaches about 29°C in the afternoon and slips back to 26°C overnight — a 3°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 about 1°C warmer than February and about 1°C cooler than April.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12825
22825
32825
42825
52825
62825
72826
82826
92826
102826
112826
122926
132926
142926
152926
162926
172926
182926
192926
202926
212926
222926
232926
242926
252926
262926
272926
282926
292926
302926
312927

How March really feels in Duyên Hải

Once humidity and wind are folded in, March averages 20 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
20
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.

Duyên Hải weather by month

How March compares with the rest of the year at a glance. March is the 8th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 25°232.811.57.4
Feb27° / 25°6111.77.8
Mar29° / 26°213.511.96.6
Apr30° / 27°5810.412.25.0
May31° / 27°17024.212.43.1
Jun30° / 26°20727.112.62.8
Jul30° / 26°19728.712.52.9
Aug30° / 26°19528.812.32.9
Sep29° / 26°22527.812.12.9
Oct29° / 26°27627.411.83.3
Nov29° / 26°16016.611.64.7
Dec28° / 25°869.211.46.2

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 48% of the time in March, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 18% of March, with mostly cloudy or overcast conditions the remaining 34%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16139
26238
36238
46436
56436
66535
76535
86634
96634
106733
116733
126832
136832
146832
156832
166832
176733
186733
196733
206634
216634
226634
236634
246634
256535
266535
276535
286535
296535
306535
316436

Chance of precipitation in March

Any precipitation

Duyên Hải gets around 21 mm of rain over 3.5 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 12% and peaks near 21% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
14
24
34
44
55
65
75
86
96
107
118
129
1310
1410
1511
1612
1713
1814
1915
2016
2116
2217
2318
2418
2519
2619
2720
2820
2920
3021
3121

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 69% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
1127711
2127612
3117712
4117613
5107713
6107614
797714
887715
987715
1077716
1167717
1257718
1347620
1447521
1537522
1637324
1727325
1827127
1927028
2016930
2116732
2216534
2316435
2416138
2516039
2605941
2705743
2805545
2905446
3005248
3105149

Wind in March

Winds average 18 km/h in March.

Across March, daily wind ranges from about 17 km/h on the calmest days to 20 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
120light breeze
220light breeze
320light breeze
420light breeze
519light breeze
619light breeze
719light breeze
819light breeze
919light breeze
1019light breeze
1119light breeze
1219light breeze
1319light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2018light breeze
2118light breeze
2218light breeze
2318light breeze
2418light breeze
2518light breeze
2618light breeze
2718light breeze
2817light breeze
2917light breeze
3017light breeze
3117light breeze

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 6:13 AM to 5:57 AM, and sunset from 6:01 PM to 6:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:136:01
211.86:136:01
311.86:126:01
411.86:126:01
511.86:116:02
611.86:116:02
711.96:106:02
811.96:106:02
911.96:096:02
1011.96:096:02
1111.96:086:02
1211.96:086:02
1311.96:076:02
1411.96:076:02
1511.96:066:02
1611.96:066:02
1711.96:056:02
1812.06:056:02
1912.06:046:02
2012.06:036:02
2112.06:036:02
2212.06:026:02
2312.06:026:01
2412.06:016:01
2512.06:006:01
2612.06:006:01
2712.05:596:01
2812.05:596:01
2912.15:586:01
3012.15:576:01
3112.15:576:01

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 6.43 kWh/m².

For context, solar energy here swings from a low near 4.65 kWh/m² to a high of 6.44 kWh/m² in April across the year — March's 6.43 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.4Intense
46.4Intense
56.4Intense
66.4Intense
76.4Intense
86.4Intense
96.4Intense
106.4Intense
116.4Intense
126.4Intense
136.4Intense
146.4Intense
156.4Intense
166.4Intense
176.4Intense
186.4Intense
196.4Intense
206.4Intense
216.4Intense
226.4Intense
236.4Intense
246.4Intense
256.4Intense
266.4Intense
276.4Intense
286.5Intense
296.5Intense
306.5Intense
316.5Intense
Planning a trip in March

Hazard calendar for Duyên Hải

In seasonPeak

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

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

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

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

Is March a good time to visit Duyên Hải?

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

6.6
Sightseeing
3rd-best month of the year
8.1
Beach & pool
2nd-best month of the year

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

What to pack for Duyên Hải in March

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

In March, Duyên Hải sees daytime highs around 29°C and nights near 26°C. Pack light clothes and sun protection. About 4 days see rain.

light clothessun protection

Sea temperature near Duyên Hải in March

The nearest coast averages about 27°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 15 km away) is warmest in May at about 30°C and coldest in January near 26°C.

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

24°26°28°30°32°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb26Warm
Mar27Warm
Apr29Tropical
May30Tropical
Jun30Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Duyên Hải 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 Duyên Hải peaks around March 24 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 10 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highMar 24UV 13Dec 10UV 10
UV index (midday)Level
Jan11Extreme
Feb12Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct11Extreme
Nov10Very high
Dec10Very high

Air quality in Duyên Hải 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 Duyên Hải is worst in December — around 34 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (March, 19 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateDec 1333 µg/m³Mar 1719 µg/m³
PM2.5 (µg/m³)Level
Jan24Moderate
Feb20Moderate
Mar19Moderate
Apr20Moderate
May22Moderate
Jun24Moderate
Jul25Moderate
Aug23Moderate
Sep28Moderate
Oct33Moderate
Nov30Moderate
Dec34Moderate
Location & terrain

Where is Duyên Hải?

Duyên Hải sits at 9.6°N, 106.5°E, 2 m above sea level, in Vietnam. The nearest listed city is Trà Vinh, 38 km away.

Topography around Duyên Hải

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

Within 3 km, the terrain around Duyên Hải has only modest variations in elevation — a maximum elevation change of 9 m around an average of 3 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 21 m; within 80 km, only modest variations in elevation — a maximum elevation change of 24 m.

The land around Duyên Hải is covered by water (40%) and trees (21%) within 3 km, water (52%) within 16 km, and water (53%), trees (23%) and cropland (20%) within 80 km.

3 km
9 m
16 km
21 m
80 km
24 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
March weather nearby: Trà Vinh 38 km · Sóc Trăng 57 km · Vĩnh Châu 66 km · Bến Tre 69 km · Ngã Bảy 76 km · Mỹ Tho 82 km · Gò Công 84 km · Phú Lộc 86 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 Duyên Hải (9.635°, 106.4924°, elevation 2 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).