Diễn Thành weather in March

In March, Diễn Thành sees average daytime highs of 26°C and overnight lows near 19°C, with 31 mm of rain across 5.3 wet days and about 11.9 hours of daylight. It is the 9th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 24°C in the first days to 27°C by the end. The sky is clear or mostly clear about 19% of the time in March, and the air most often feels oppressive.

Daylight stretches from about 11 h 36 min at the start of March to 12 h 06 min by month's end. Set against the rest of the year, March is Diễn Thành's 4th-clearest and 6th-windiest month. For the whole year in context, see Diễn Thành's year-round climate.

Daytime high
26°
9th warmest
Overnight low
19°
4th coldest
Rainfall
31 mm
5.3 wet days
Daylight
11 h 54 min
6:11 AM – 6:03 PM
Cloud cover
70%
4th clearest
Wind
8 km/h
6th windiest
Solar energy
3.94 kWh/m²
Travel score
7.2
out of 10

Temperature in March

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 24°C in the first days to 27°C by the end.

A typical March day in Diễn Thành reaches about 26°C in the afternoon and slips back to 19°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 31°C. Set against its neighbours, March runs about 3°C warmer than February and about 4°C cooler than April.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12418
22418
32418
42418
52418
62518
72518
82519
92519
102519
112519
122519
132519
142519
152619
162619
172620
182620
192620
202620
212620
222620
232620
242720
252720
262720
272721
282721
292721
302721
312721

How March really feels in Diễn Thành

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.

Diễn Thành weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan21° / 16°173.9117.0
Feb23° / 17°133.311.47.4
Mar26° / 19°315.311.97.2
Apr30° / 23°496.912.45.3
May33° / 26°1151412.93.1
Jun35° / 28°1161213.12.1
Jul34° / 28°17114.2132.3
Aug33° / 27°25920.512.62.6
Sep31° / 25°29319.912.13.2
Oct29° / 23°23817.511.64.8
Nov26° / 20°629.111.16.7
Dec22° / 17°265.110.97.2

Cloud cover in March

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% 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 67%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13070
23169
33367
43367
53565
63565
73565
83763
93763
103664
113664
123664
133565
143565
153565
163466
173466
183367
193367
203268
213268
223268
233268
243169
253169
263169
273070
283070
293169
303169
313268

Chance of precipitation in March

Any precipitation

Diễn Thành gets around 31 mm of rain over 5.3 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 16% and peaks near 20% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
112
212
312
413
513
613
714
814
914
1015
1115
1215
1315
1416
1516
1617
1717
1817
1918
2018
2118
2219
2319
2419
2519
2619
2719
2819
2920
3020
3119

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 33% of days. Sticky, muggy-or-worse air turns up on roughly 68% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
115132231190
214132131200
314132132200
413132133200
512132133210
612132034220
711122035220
810121935230
99111936250
109111836261
118101836271
127101736291
137101735311
14691634322
15691633342
16591532353
17591531373
18591530374
19491530394
20481429395
21481429405
22481428415
23481327426
24481327426
25471326437
26371326437
27371226448
28371226448
29361226448
30361226459
313611264510

Wind in March

Winds average 8 km/h in March.

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

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in March

DaylightNight

Daylight runs from about 11 h 36 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 30 minutes over March. Sunrise moves from 6:23 AM to 5:58 AM, and sunset from 5:59 PM to 6:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.66:235:59
211.66:225:59
311.66:225:59
411.66:216:00
511.76:206:00
611.76:196:00
711.76:196:01
811.76:186:01
911.76:176:01
1011.86:166:02
1111.86:156:02
1211.86:156:02
1311.86:146:02
1411.86:136:03
1511.86:126:03
1611.96:116:03
1711.96:106:03
1811.96:106:04
1911.96:096:04
2011.96:086:04
2112.06:076:05
2212.06:066:05
2312.06:056:05
2412.06:046:05
2512.06:046:05
2612.16:036:06
2712.16:026:06
2812.16:016:06
2912.16:006:06
3012.15:596:07
3112.15:586:07

Solar energy in March

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in March, about 3.94 kWh/m².

For context, solar energy here swings from a low near 2.47 kWh/m² to a high of 5.73 kWh/m² in June across the year — March's 3.94 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
13.5Moderate
23.5Moderate
33.5Moderate
43.6Moderate
53.6Moderate
63.7Moderate
73.7Moderate
83.7Moderate
93.8Moderate
103.8Moderate
113.8Moderate
123.9Moderate
133.9Moderate
143.9Moderate
153.9Moderate
163.9Moderate
174.0Moderate
184.0Moderate
194.0Bright
204.0Bright
214.0Bright
224.0Bright
234.1Bright
244.1Bright
254.1Bright
264.1Bright
274.2Bright
284.2Bright
294.2Bright
304.3Bright
314.3Bright
Planning a trip in March

Hazard calendar for Diễn Thành

In seasonPeak

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

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

Diễn Thành's monsoon runs July–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 Diễn Thành?

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

7.2
Sightseeing
2nd-best month of the year
6.8
Beach & pool
2nd-best month of the year

March is one of the better times to visit Diễn Thành for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Diễn Thành in March

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

In March, Diễn Thành sees daytime highs around 26°C and nights near 19°C. Worth packing: light clothes. About 5 days see rain.

light clothes

Sea temperature near Diễn Thành in March

The nearest coast averages about 22°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 August at about 30°C and coldest in February near 21°C.

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

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan21Refreshing
Feb21Refreshing
Mar22Refreshing
Apr24Warm
May28Warm
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct28Warm
Nov26Warm
Dec23Refreshing

UV index in Diễn Thành in March

LowModerateHighVery highExtreme

Clear-sky midday UV in March peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Diễn Thành peaks around July 17 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highHighJul 17UV 12Dec 14UV 6
UV index (midday)Level
Jan8Very high
Feb9Very high
Mar10Very high
Apr9Very high
May11Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep11Extreme
Oct10Very high
Nov7High
Dec6High

Air quality in Diễn Thành 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 Diễn Thành is worst in April — around 62 µg/m³ PM2.5 (unhealthy), about 3.5× the cleanest month (July, 18 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorModeratePoorApr 1161 µg/m³Jul 1618 µg/m³
PM2.5 (µg/m³)Level
Jan52Poor
Feb52Poor
Mar57Unhealthy
Apr62Unhealthy
May35Poor
Jun20Moderate
Jul18Moderate
Aug21Moderate
Sep30Moderate
Oct41Poor
Nov47Poor
Dec52Poor
Location & terrain

Where is Diễn Thành?

Diễn Thành sits at 19.0°N, 105.6°E, 9 m above sea level, in Vietnam. The nearest listed city is Kim Liên, 32 km away.

Topography around Diễn Thành

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

Within 3 km, the terrain around Diễn Thành has only modest variations in elevation — a maximum elevation change of 12 m around an average of 3 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 430 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,711 m.

The land around Diễn Thành is covered by cropland (44%) and artificial surfaces (21%) within 3 km, water (35%), cropland (33%) and trees (20%) within 16 km, and trees (54%) and water (28%) within 80 km.

3 km
12 m
16 km
430 m
80 km
1,711 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
March weather nearby: Kim Liên 32 km · Hoàng Mai 35 km · Vinh 35 km · Yên Vinh 35 km · Bến Thủy 38 km · Nghi Xuân 39 km · Nghi Sơn 45 km · Hồng Lĩnh 51 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 Diễn Thành (18.9765°, 105.6003°, 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).