Vũng Tàu weather in May

In May, Vũng Tàu sees average daytime highs of 29°C and overnight lows near 27°C, with 164 mm of rain across 22.9 wet days and about 12.5 hours of daylight. It is the 1st-warmest and 4th-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 16% 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 Vũng Tàu's 7th-clearest and 11th-windiest month. For the whole year in context, see Vũng Tàu's year-round climate.

Daytime high
29°
1st warmest
Overnight low
27°
12th coldest
Rainfall
164 mm
22.9 wet days
Daylight
12 h 30 min
5:34 AM – 6:02 PM
Cloud cover
74%
7th clearest
Wind
16 km/h
11th windiest
Solar energy
5.88 kWh/m²
Travel score
3.8
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical May day in Vũng Tàu reaches about 29°C in the afternoon and slips back to 27°C overnight — a 2°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, May runs about 1°C warmer than April and on par with June.

25°28°30°33°35°151015202531
Avg high (°C)Avg low (°C)
12927
22927
32927
42927
52927
62927
72927
82927
92927
102927
112927
122927
132927
142927
152927
162927
172927
182927
192927
202927
212927
222927
232927
242927
252927
262927
272927
282927
292927
302927
312927

How May really feels in Vũng Tàu

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
heat index over the day's high
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.

Vũng Tàu weather by month

How May compares with the rest of the year at a glance. May is the 1st-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 25°19211.57.9
Feb26° / 25°40.911.78.3
Mar27° / 26°122.311.97.9
Apr28° / 27°488.612.26.3
May29° / 27°16422.912.53.8
Jun29° / 27°19025.512.63.4
Jul28° / 26°15925.712.53.6
Aug28° / 26°16024.912.33.7
Sep28° / 26°20225.512.13.6
Oct28° / 26°23225.811.84.0
Nov28° / 26°12713.311.55.7
Dec27° / 25°586.811.46.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 16% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 13% of May, with mostly cloudy or overcast conditions the remaining 72%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
24951
34654
44555
54357
64159
73961
83862
93664
103367
113268
123070
132872
142773
152575
162476
172377
182278
192080
201981
211981
221981
231981
241981
251981
261981
272080
281981
291981
301981
312179

Chance of precipitation in May

Any precipitation

Vũng Tàu gets around 164 mm of rain over 22.9 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 73% and peaks near 84% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
149
252
354
456
558
661
763
865
967
1069
1170
1272
1374
1475
1576
1678
1779
1880
1981
2081
2182
2282
2383
2483
2583
2683
2784
2884
2984
3084
3184

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 98% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
1694
2595
3595
4496
5496
6397
7397
8397
9298
10298
11298
12298
13199
14199
15199
16199
17199
18199
19199
20199
21199
22199
23199
24199
25199
26199
27199
28298
29298
30298
31298

Wind in May

Winds average 16 km/h in May.

Across May, daily wind ranges from about 15 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
117light breeze
217light breeze
317light breeze
417light breeze
517light breeze
617light breeze
717light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1416light breeze
1516light breeze
1616light breeze
1716light breeze
1816light breeze
1916light breeze
2016light breeze
2116light breeze
2216light breeze
2316light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3016light breeze
3116light breeze

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 5:38 AM to 5:32 AM, and sunset from 6:00 PM to 6:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:386:00
212.45:386:00
312.45:376:00
412.45:376:00
512.45:376:00
612.45:366:00
712.45:366:00
812.45:366:01
912.45:356:01
1012.45:356:01
1112.45:356:01
1212.45:356:01
1312.55:346:02
1412.55:346:02
1512.55:346:02
1612.55:346:02
1712.55:346:02
1812.55:336:03
1912.55:336:03
2012.55:336:03
2112.55:336:03
2212.55:336:03
2312.55:336:04
2412.55:336:04
2512.55:336:04
2612.55:336:04
2712.55:326:05
2812.55:326:05
2912.55:326:05
3012.65:326:05
3112.65:326:06

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.88 kWh/m².

For context, solar energy here swings from a low near 4.78 kWh/m² to a high of 6.67 kWh/m² in April across the year — May's 5.88 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.3Intense
46.3Intense
56.3Intense
66.2Intense
76.2Intense
86.1Intense
96.1Intense
106.0Intense
116.0Bright
125.9Bright
135.9Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.6Bright
265.6Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
315.6Bright
Planning a trip in May

Hazard calendar for Vũng Tàu

In seasonPeak

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

Vũng Tàu sits in the Pacific typhoon belt; the season peaks July–October.

Vũng Tàu'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 Vũng Tàu?

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

3.8
Sightseeing
8th-best month of the year
5.0
Beach & pool
7th-best month of the year

May is a weaker month for outdoor sightseeing in Vũng Tàu.

What to pack for Vũng Tàu in May

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

In May, Vũng Tàu sees daytime highs around 29°C and nights near 27°C. Pack light clothes and rain gear. Worth having: sun protection. About 23 days see rain.

light clothesrain gearsun protection

Sea temperature near Vũng Tàu 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 offshore 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
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct29Tropical
Nov28Tropical
Dec27Warm

UV index in Vũng Tàu 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 Vũng Tàu peaks around March 23 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 21 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 21UV 9
UV index (midday)Level
Jan11Extreme
Feb12Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep13Extreme
Oct10Extreme
Nov9Very high
Dec9Very high

Air quality in Vũng Tàu 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 Vũng Tàu is worst in October — around 34 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (March, 21 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateOct 1434 µg/m³Mar 1921 µg/m³
PM2.5 (µg/m³)Level
Jan26Moderate
Feb21Moderate
Mar21Moderate
Apr21Moderate
May25Moderate
Jun30Moderate
Jul29Moderate
Aug29Moderate
Sep33Moderate
Oct34Moderate
Nov31Moderate
Dec34Moderate
Location & terrain

Where is Vũng Tàu?

Vũng Tàu sits at 10.3°N, 107.1°E, 10 m above sea level, in Vietnam. The nearest listed city is Ấp Phước Tĩnh, 12 km away.

Topography around Vũng Tàu

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

Within 3 km, the terrain around Vũng Tàu has only modest variations in elevation — a maximum elevation change of 244 m around an average of 15 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 244 m; within 80 km, large variations in elevation — a maximum elevation change of 918 m.

The land around Vũng Tàu is covered by water (46%) and artificial surfaces (35%) within 3 km, water (86%) within 16 km, and water (43%) and trees (30%) within 80 km.

3 km
244 m
16 km
244 m
80 km
918 m
treesgrasslandcroplandartificial surfacesbare terrainwatermangroves
May weather nearby: Ấp Phước Tĩnh 12 km · Cần Giờ 16 km · Xã Long Hải 18 km · Thành Phố Bà Rịa 19 km · Long Diền 21 km · Thị Trấn Đất Đỏ 26 km · Xóm Mỹ Xuân 30 km · Phú Mỹ 32 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 Vũng Tàu (10.346°, 107.0843°, elevation 10 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).