Dĩ An weather in May

In May, Dĩ An sees average daytime highs of 33°C and overnight lows near 26°C, with 205 mm of rain across 24 wet days and about 12.5 hours of daylight. It is the 3rd-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 34°C in the first days to 33°C by the end. The sky is clear or mostly clear about 7% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 24 min at the start of May to 12 h 36 min by month's end. Set against the rest of the year, May is Dĩ An's 7th-clearest and 8th-windiest month. For the whole year in context, see Dĩ An's year-round climate.

Daytime high
33°
3rd warmest
Overnight low
26°
11th coldest
Rainfall
205 mm
24 wet days
Daylight
12 h 30 min
5:34 AM – 6:04 PM
Cloud cover
80%
7th clearest
Wind
7 km/h
8th windiest
Solar energy
5.39 kWh/m²
Travel score
2.2
out of 10

Dĩ An is provincial city of Binh Duong.

Density
7,717/km²
people per km²
Founded
2011

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 34°C in the first days to 33°C by the end.

A typical May day in Dĩ An reaches about 33°C in the afternoon and slips back to 26°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 36°C. Set against its neighbours, May runs about 1°C cooler than April and about 1°C warmer than June.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13427
23426
33426
43426
53426
63426
73426
83426
93426
103426
113426
123426
133426
143326
153326
163326
173326
183326
193326
203326
213326
223326
233326
243326
253326
263326
273326
283326
293326
303326
313326

How May really feels in Dĩ An

Once humidity and wind are folded in, May 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
31 feel dangerously hot (≥ 39°C)
Days feeling ≤ C
0
wind chill below the day's low

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

Dĩ An weather by month

How May compares with the rest of the year at a glance. May is the 3rd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 23°213.811.44.7
Feb33° / 24°81.611.64.3
Mar34° / 25°25511.93.4
Apr34° / 26°7512.312.22.7
May33° / 26°2052412.52.2
Jun32° / 25°25626.912.62.3
Jul31° / 25°27628.712.62.4
Aug31° / 25°28328.812.42.4
Sep31° / 25°30128.412.12.4
Oct31° / 25°25026.411.82.7
Nov31° / 24°12215.511.53.8
Dec31° / 23°558.611.44.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 7% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 11% of May, with mostly cloudy or overcast conditions the remaining 82%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13763
23664
33466
43268
53070
62872
72773
82575
92377
102278
112080
122080
131783
141684
151585
161486
171387
181288
191189
201189
211090
221090
231090
241090
251090
261090
271090
281090
291090
301189
311189

Chance of precipitation in May

Any precipitation

Dĩ An gets around 205 mm of rain over 24 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 77% and peaks near 88% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
156
257
359
460
562
664
765
867
968
1070
1171
1273
1375
1476
1578
1679
1781
1882
1984
2085
2186
2286
2387
2487
2588
2688
2788
2888
2988
3088
3188

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the miserable band about 90% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
112970
212772
312574
412376
512178
611980
711782
811683
911485
1011386
1101288
1201189
1301090
140991
150892
160793
170694
180595
190595
200496
210496
220397
230397
240298
250298
260298
270298
280298
290199
300199
310199

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 24 min at the start of May to 12 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 12 minutes over May. Sunrise moves from 5:39 AM to 5:33 AM, and sunset from 6:02 PM to 6:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:396:02
212.45:386:02
312.45:386:02
412.45:386:02
512.45:376:02
612.45:376:02
712.45:376:02
812.45:366:03
912.45:366:03
1012.55:366:03
1112.55:356:03
1212.55:356:03
1312.55:356:04
1412.55:356:04
1512.55:346:04
1612.55:346:04
1712.55:346:04
1812.55:346:05
1912.55:346:05
2012.55:346:05
2112.55:336:05
2212.55:336:06
2312.55:336:06
2412.65:336:06
2512.65:336:06
2612.65:336:07
2712.65:336:07
2812.65:336:07
2912.65:336:07
3012.65:336:08
3112.65:336:08

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.39 kWh/m².

For context, solar energy here swings from a low near 4.5 kWh/m² to a high of 6.12 kWh/m² in March across the year — May's 5.39 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.8Bright
35.8Bright
45.8Bright
55.7Bright
65.7Bright
75.7Bright
85.6Bright
95.6Bright
105.5Bright
115.5Bright
125.5Bright
135.4Bright
145.4Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.2Bright
205.2Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.1Bright
285.1Bright
295.1Bright
305.1Bright
315.1Bright
Planning a trip in May

Hazard calendar for Dĩ An

In seasonPeak

In May, Dĩ An sits inside its pacific typhoon and rainy season season. The full year is below, with each hazard's peak months called out.

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

Dĩ An's rainy season runs May–October, 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 May a good time to visit Dĩ An?

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

2.2
Sightseeing
12th-best month of the year
4.1
Beach & pool
8th-best month of the year

May is a weaker month for outdoor sightseeing in Dĩ An.

What to pack for Dĩ An in May

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

In May, Dĩ An sees daytime highs around 33°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.

light clothesrain gearsun protection

Sea temperature near Dĩ An in May

The nearest coast averages about 30°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 60 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 Dĩ An in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Dĩ An peaks around March 23 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 15 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highMar 23UV 13Nov 15UV 8
UV index (midday)Level
Jan10Very high
Feb11Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun11Extreme
Jul11Extreme
Aug12Extreme
Sep12Extreme
Oct9Very high
Nov8Very high
Dec9Very high

Air quality in Dĩ An in May

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where May falls, not just the annual average.

Air quality in Dĩ An is worst in January — around 54 µg/m³ PM2.5 (poor), about 1.9× the cleanest month (August, 29 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorJan 1853 µg/m³Aug 1229 µg/m³
PM2.5 (µg/m³)Level
Jan54Poor
Feb49Poor
Mar47Poor
Apr44Poor
May39Poor
Jun34Moderate
Jul31Moderate
Aug29Moderate
Sep35Moderate
Oct43Poor
Nov48Poor
Dec46Poor
Location & terrain

Where is Dĩ An?

Dĩ An sits at 10.9°N, 106.8°E, 32 m above sea level, in Vietnam. The nearest listed city is Thuận An, 6.0 km away.

Topography around Dĩ An

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

Within 3 km, the terrain around Dĩ An has only modest variations in elevation — a maximum elevation change of 122 m around an average of 31 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 158 m; within 80 km, large variations in elevation — a maximum elevation change of 895 m.

The land around Dĩ An is covered by artificial surfaces (84%) within 3 km, artificial surfaces (52%) and trees (21%) within 16 km, and trees (52%) within 80 km.

3 km
122 m
16 km
158 m
80 km
895 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
May weather nearby: Thuận An 6.0 km · Thủ Đức 6.0 km · Biên Hòa 7.0 km · Bình Thạnh 13 km · Gò Vấp 14 km · Thủ Dầu Một 15 km · Tân Bình 17 km · Quận Bốn 17 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 Dĩ An (10.9068°, 106.7694°, elevation 32 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).