Kiến An weather in May

In May, Kiến An sees average daytime highs of 33°C and overnight lows near 26°C, with 168 mm of rain across 24.7 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 32°C by the end. The sky is clear or mostly clear about 6% 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 Kiến An's 7th-clearest and 7th-windiest month. For the whole year in context, see Kiến An's year-round climate.

Daytime high
33°
3rd warmest
Overnight low
26°
12th coldest
Rainfall
168 mm
24.7 wet days
Daylight
12 h 30 min
5:40 AM – 6:09 PM
Cloud cover
81%
7th clearest
Wind
8 km/h
7th windiest
Solar energy
5.42 kWh/m²
Travel score
2.2
out of 10

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 32°C by the end.

A typical May day in Kiến 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 2°C warmer than June.

25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13426
23426
33426
43426
53426
63426
73426
83426
93426
103426
113426
123326
133326
143326
153326
163326
173326
183326
193326
203326
213326
223326
233326
243326
253326
263326
273226
283226
293226
303226
313226

How May really feels in Kiến 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.

Kiến 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
Jan31° / 23°234.311.55.1
Feb32° / 23°13211.74.8
Mar34° / 25°366.111.93.4
Apr35° / 26°8413.212.22.5
May33° / 26°16824.712.52.2
Jun32° / 26°19426.212.62.4
Jul31° / 26°20727.612.62.5
Aug31° / 26°20928.212.32.4
Sep31° / 25°26028.112.12.3
Oct31° / 25°2872711.82.5
Nov32° / 24°13215.811.53.5
Dec31° / 23°538.111.44.6

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 6% 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 84%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13466
23268
33070
43070
52872
62674
72575
82476
92278
102179
112080
121981
131684
141585
151387
161387
171189
181189
191090
20991
21991
22991
23892
24892
25892
26892
27892
28892
29892
30892
31892

Chance of precipitation in May

Any precipitation

Kiến An gets around 168 mm of rain over 24.7 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 79% and peaks near 89% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
162
263
365
466
568
669
771
872
973
1075
1176
1277
1378
1479
1580
1681
1782
1883
1984
2085
2185
2286
2386
2487
2587
2687
2788
2888
2988
3089
3189

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 92% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
112475
212277
312079
411881
511782
611584
711485
811287
901189
1001090
110991
120892
130793
140694
150694
160595
170496
180496
190397
200397
210397
220298
230298
240298
250298
260298
270199
280199
290199
300199
310199

Wind in May

Winds average 8 km/h in May.

Across May, daily wind ranges from about 7 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

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 5:45 AM to 5:39 AM, and sunset from 6:07 PM to 6:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:456:07
212.45:446:07
312.45:446:07
412.45:446:07
512.45:436:07
612.45:436:07
712.45:436:08
812.45:426:08
912.45:426:08
1012.45:426:08
1112.45:416:08
1212.55:416:08
1312.55:416:09
1412.55:416:09
1512.55:406:09
1612.55:406:09
1712.55:406:09
1812.55:406:10
1912.55:406:10
2012.55:406:10
2112.55:396:10
2212.55:396:11
2312.55:396:11
2412.55:396:11
2512.55:396:11
2612.55:396:12
2712.55:396:12
2812.65:396:12
2912.65:396:12
3012.65:396:13
3112.65:396:13

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.42 kWh/m².

For context, solar energy here swings from a low near 4.36 kWh/m² to a high of 6.09 kWh/m² in April across the year — May's 5.42 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
155.4Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.2Bright
235.2Bright
245.2Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in May

Hazard calendar for Kiến An

In seasonPeak

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

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

Kiến An'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 May a good time to visit Kiến 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
4.0
Beach & pool
7th-best month of the year

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

What to pack for Kiến An in May

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

In May, Kiến An sees daytime highs around 33°C and nights near 26°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

UV index in Kiến An in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kiến An peaks around August 19 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 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 19UV 13Dec 11UV 9
UV index (midday)Level
Jan10Extreme
Feb11Extreme
Mar12Extreme
Apr12Extreme
May11Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct10Very high
Nov9Very high
Dec9Very high

Air quality in Kiến 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 Kiến An is worst in January — around 55 µg/m³ PM2.5 (poor), about 2.6× the cleanest month (August, 21 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorJan 1754 µg/m³Aug 1422 µg/m³
PM2.5 (µg/m³)Level
Jan55Poor
Feb49Poor
Mar44Poor
Apr40Poor
May33Moderate
Jun25Moderate
Jul24Moderate
Aug21Moderate
Sep27Moderate
Oct39Poor
Nov47Poor
Dec48Poor
Location & terrain

Where is Kiến An?

Kiến An sits at 10.6°N, 105.4°E, 7 m above sea level, in Vietnam. The nearest listed city is Long Xuyên, 21 km away.

Topography around Kiến An

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

Within 3 km, the terrain around Kiến An has only modest variations in elevation — a maximum elevation change of 14 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 15 m; within 80 km, large variations in elevation — a maximum elevation change of 680 m.

The land around Kiến An is covered by cropland (38%) and trees (27%) within 3 km, cropland (67%) within 16 km, and cropland (76%) within 80 km.

3 km
14 m
16 km
15 m
80 km
680 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Long Xuyên 21 km · Ấp Long Thạnh 24 km · Tràm Chim 24 km · Hồng Ngự 26 km · Tân Châu 29 km · Châu Phong 30 km · Châu Đốc 31 km · Cao Lãnh 31 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 Kiến An (10.5667°, 105.3667°, elevation 7 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). 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).