Nha Trang weather in May

In May, Nha Trang sees average daytime highs of 31°C and overnight lows near 27°C, with 102 mm of rain across 16.1 wet days and about 12.6 hours of daylight. It is the 2nd-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 31°C through the month. The sky is clear or mostly clear about 22% 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 42 min by month's end. Set against the rest of the year, May is Nha Trang's 5th-clearest and 8th-windiest month. For the whole year in context, see Nha Trang's year-round climate.

Daytime high
31°
2nd warmest
Overnight low
27°
9th coldest
Rainfall
102 mm
16.1 wet days
Daylight
12 h 36 min
5:23 AM – 5:56 PM
Cloud cover
68%
5th clearest
Wind
8 km/h
8th windiest
Solar energy
6.01 kWh/m²
Travel score
3.8
out of 10

Nha Trang is city of Vietnam, capital of the Khánh Hòa Province.

Air quality
Excellent
PM10 14 µg/m³ · 2015
Density
2,307/km²
people per km²
Founded
1977

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 31°C through the month.

A typical May day in Nha Trang reaches about 31°C in the afternoon and slips back to 27°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 32°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)
13027
23127
33127
43127
53127
63127
73127
83127
93127
103127
113127
123127
133127
143127
153127
163127
173127
183127
193127
203127
213127
223127
233127
243127
253127
263127
273127
283127
293127
303127
313127

How May really feels in Nha Trang

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
8 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.

Nha Trang weather by month

How May compares with the rest of the year at a glance. May is the 2nd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 22°9012.111.46.4
Feb26° / 23°397.311.67.0
Mar28° / 24°508.411.96.5
Apr30° / 26°528.812.35.4
May31° / 27°10216.112.63.8
Jun31° / 27°8617.512.73.4
Jul31° / 27°8920.512.63.4
Aug31° / 27°9820.112.43.3
Sep30° / 27°17724.212.13.1
Oct28° / 25°28025.111.73.8
Nov27° / 24°33221.211.44.7
Dec26° / 23°27619.411.35.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% 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 65%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25149
35050
44852
54654
64555
74456
84357
94159
104060
113862
123862
133664
143565
153466
163367
173268
183169
192971
202872
212872
222773
232773
242674
252674
262773
272773
282773
292773
302872
312872

Chance of precipitation in May

Any precipitation

Nha Trang gets around 102 mm of rain over 16.1 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 52% and peaks near 62% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
137
238
339
440
541
642
743
844
945
1046
1148
1249
1350
1451
1553
1654
1755
1856
1957
2058
2159
2259
2360
2461
2561
2662
2762
2862
2962
3062
3162

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 93% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Oppressive (%)Miserable (%)
11981
21783
31684
41585
51387
61288
71189
81090
91090
10991
11892
12892
13793
14793
15694
16595
17595
18496
19496
20496
21397
22397
23397
24298
25298
26298
27298
28298
29298
30298
31298

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
19calm
29calm
39calm
49calm
59calm
69calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
257calm
267calm
277calm
288calm
298calm
308calm
318calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 24 min at the start of May to 12 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over May. Sunrise moves from 5:28 AM to 5:21 AM, and sunset from 5:53 PM to 6:00 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.45:285:53
212.45:275:53
312.45:275:54
412.55:265:54
512.55:265:54
612.55:265:54
712.55:255:54
812.55:255:55
912.55:255:55
1012.55:245:55
1112.55:245:55
1212.55:245:55
1312.55:235:56
1412.55:235:56
1512.65:235:56
1612.65:235:56
1712.65:225:57
1812.65:225:57
1912.65:225:57
2012.65:225:57
2112.65:225:58
2212.65:215:58
2312.65:215:58
2412.65:215:58
2512.65:215:59
2612.65:215:59
2712.65:215:59
2812.65:216:00
2912.75:216:00
3012.75:216:00
3112.75:216:00

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.01 kWh/m².

For context, solar energy here swings from a low near 3.41 kWh/m² to a high of 6.31 kWh/m² in April across the year — May's 6.01 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.2Intense
36.2Intense
46.2Intense
56.2Intense
66.2Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.0Intense
126.0Intense
136.0Intense
146.0Bright
156.0Bright
166.0Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
225.9Bright
235.9Bright
245.9Bright
255.9Bright
265.9Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
315.9Bright
Planning a trip in May

Hazard calendar for Nha Trang

In seasonPeak

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

Nha Trang sits in the Pacific typhoon belt; the season peaks July–October.

Nha Trang's monsoon runs September–December, when most of the year's rain falls.

Pacific typhoon
Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Nha Trang?

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

3.8
Sightseeing
7th-best month of the year
5.7
Beach & pool
5th-best month of the year

May is a weaker month for outdoor sightseeing in Nha Trang.

What to pack for Nha Trang in May

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

In May, Nha Trang sees daytime highs around 31°C and nights near 27°C. Pack light clothes, rain gear and sun protection. About 16 days see rain.

light clothesrain gearsun protection

Sea temperature near Nha Trang in May

The nearest coast averages about 29°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 24 km away) is warmest in May at about 29°C and coldest in January near 25°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan25Warm
Feb25Warm
Mar26Warm
Apr28Warm
May29Tropical
Jun29Tropical
Jul28Tropical
Aug28Tropical
Sep29Tropical
Oct28Tropical
Nov27Warm
Dec26Warm

UV index in Nha Trang 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 Nha Trang peaks around August 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 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 18UV 13Dec 16UV 9
UV index (midday)Level
Jan10Extreme
Feb12Extreme
Mar13Extreme
Apr13Extreme
May13Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct12Extreme
Nov10Very high
Dec8Very high

Air quality in Nha Trang 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 Nha Trang is worst in July — around 19 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJul 1718 µg/m³Nov 1713 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb15Moderate
Mar15Moderate
Apr16Moderate
May15Moderate
Jun18Moderate
Jul19Moderate
Aug18Moderate
Sep16Moderate
Oct15Moderate
Nov13Moderate
Dec15Moderate
Location & terrain

Where is Nha Trang?

Nha Trang sits at 12.2°N, 109.2°E, 10 m above sea level, in Vietnam. The nearest listed city is Ninh Hòa, 28 km away.

Tuy HòaĐưc Trọng

Topography around Nha Trang

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

Within 3 km, the terrain around Nha Trang has only modest variations in elevation — a maximum elevation change of 169 m around an average of 6 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 959 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,277 m.

The land around Nha Trang is covered by water (42%) and artificial surfaces (39%) within 3 km, water (41%) and trees (39%) within 16 km, and trees (49%) and water (39%) within 80 km.

3 km
169 m
16 km
959 m
80 km
2,277 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Ninh Hòa 28 km · Cam Ranh 36 km · Tu Bông 59 km · Khánh Hải 75 km · Phan Rang-Tháp Chàm 79 km · Da Lat 88 km · Tuy Hòa 96 km · Đưc Trọng 106 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 Nha Trang (12.2451°, 109.1943°, 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).