Tân An weather in May

In May, Tân An sees average daytime highs of 33°C and overnight lows near 26°C, with 194 mm of rain across 24.5 wet days and about 12.5 hours of daylight. It is the 2nd-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 33°C through the month. 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 Tân An's 7th-clearest and 9th-windiest month. For the whole year in context, see Tân An's year-round climate.

Daytime high
33°
2nd warmest
Overnight low
26°
12th coldest
Rainfall
194 mm
24.5 wet days
Daylight
12 h 30 min
5:36 AM – 6:05 PM
Cloud cover
80%
7th clearest
Wind
7 km/h
9th windiest
Solar energy
5.46 kWh/m²
Travel score
2.2
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 33°C through the month.

A typical May day in Tân 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 35°C. Set against its neighbours, May runs on par with April and about 1°C warmer than June.

25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13427
23427
33427
43427
53427
63427
73427
83427
93426
103426
113326
123326
133326
143326
153326
163326
173326
183326
193326
203326
213326
223326
233326
243326
253326
263326
273326
283326
293326
303326
313326

How May really feels in Tân 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.

Tân An weather by month

How May compares with the rest of the year at a glance. May is the 2nd-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°284.211.55.3
Feb31° / 24°11211.75.1
Mar33° / 25°254.511.94.1
Apr34° / 26°7011.912.23.0
May33° / 26°19424.512.52.2
Jun32° / 26°23727.312.62.2
Jul31° / 25°2382912.62.3
Aug31° / 25°2602912.32.3
Sep31° / 25°29428.112.12.3
Oct31° / 25°28727.411.82.6
Nov31° / 25°13916.811.53.7
Dec30° / 24°709.911.44.7

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 (%)
13862
23664
33565
43367
53268
62971
72872
82773
92575
102377
112179
122080
131783
141783
151684
161486
171486
181288
191288
201189
211189
221090
23991
24991
25991
261090
27991
28991
29991
30991
31991

Chance of precipitation in May

Any precipitation

Tân An gets around 194 mm of rain over 24.5 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 90% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202531
Rain chance (%)
157
259
361
462
564
666
768
869
971
1072
1174
1276
1377
1479
1581
1682
1783
1885
1986
2086
2187
2288
2388
2488
2589
2689
2789
2890
2990
3090
3190

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 95% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
11684
21585
31387
41288
51090
6991
7892
8793
9694
10595
11595
12496
13496
14397
15397
16298
17298
18298
19298
20298
21298
22199
23199
24199
25199
26199
27199
28199
29199
30199
31199

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
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 5:41 AM to 5:35 AM, and sunset from 6:03 PM to 6:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:416:03
212.45:406:03
312.45:406:03
412.45:396:03
512.45:396:03
612.45:396:03
712.45:386:03
812.45:386:04
912.45:386:04
1012.45:386:04
1112.45:376:04
1212.55:376:04
1312.55:376:04
1412.55:376:05
1512.55:366:05
1612.55:366:05
1712.55:366:05
1812.55:366:05
1912.55:366:06
2012.55:356:06
2112.55:356:06
2212.55:356:06
2312.55:356:07
2412.55:356:07
2512.55:356:07
2612.55:356:07
2712.55:356:08
2812.65:356:08
2912.65:356:08
3012.65:356:08
3112.65:356:09

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.46 kWh/m².

For context, solar energy here swings from a low near 4.57 kWh/m² to a high of 6.24 kWh/m² in March across the year — May's 5.46 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.8Bright
55.8Bright
65.8Bright
75.7Bright
85.7Bright
95.6Bright
105.6Bright
115.5Bright
125.5Bright
135.5Bright
145.4Bright
155.4Bright
165.4Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.2Bright
265.2Bright
275.2Bright
285.2Bright
295.2Bright
305.2Bright
315.2Bright
Planning a trip in May

Hazard calendar for Tân An

In seasonPeak

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

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

Tân 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 Tân An?

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

2.2
Sightseeing
11th-best month of the year
4.0
Beach & pool
7th-best month of the year

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

What to pack for Tân An in May

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

In May, Tân 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

Sea temperature near Tân 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 54 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 Tân An in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 Tân An peaks around March 23 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 18 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 highMar 23UV 13Nov 18UV 9
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun11Extreme
Jul12Extreme
Aug12Extreme
Sep13Extreme
Oct9Very high
Nov9Very high
Dec9Very high

Air quality in Tân 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 Tân An is worst in December — around 49 µg/m³ PM2.5 (poor), about 1.8× the cleanest month (August, 28 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorDec 1549 µg/m³Aug 1228 µg/m³
PM2.5 (µg/m³)Level
Jan46Poor
Feb38Poor
Mar33Moderate
Apr32Moderate
May32Moderate
Jun31Moderate
Jul29Moderate
Aug28Moderate
Sep34Moderate
Oct41Poor
Nov47Poor
Dec49Poor
Location & terrain

Where is Tân An?

Tân An sits at 10.5°N, 106.4°E, 4 m above sea level, in Vietnam. The nearest listed city is Mỹ Tho, 20 km away.

Topography around Tân An

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

Within 3 km, the terrain around Tân An has only modest variations in elevation — a maximum elevation change of 12 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 18 m; within 80 km, significant variations in elevation — a maximum elevation change of 588 m.

The land around Tân An is covered by artificial surfaces (37%) and trees (35%) within 3 km, trees (41%) and cropland (36%) within 16 km, and trees (34%) and cropland (34%) within 80 km.

3 km
12 m
16 km
18 m
80 km
588 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
May weather nearby: Mỹ Tho 20 km · Cần Đước 21 km · Cần Giuộc 29 km · Bến Tre 33 km · Gò Công 33 km · Quận Sáu 35 km · Chợ Lớn 35 km · Quận Mười Một 36 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 Tân An (10.5359°, 106.4137°, elevation 4 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).