Núi Thành weather in May

In May, Núi Thành sees average daytime highs of 30°C and overnight lows near 26°C, with 95 mm of rain across 15.6 wet days and about 12.7 hours of daylight. It is the 4th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 23% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 30 min at the start of May to 12 h 48 min by month's end. Set against the rest of the year, May is Núi Thành's 6th-clearest and 8th-windiest month. For the whole year in context, see Núi Thành's year-round climate.

Daytime high
30°
4th warmest
Overnight low
26°
9th coldest
Rainfall
95 mm
15.6 wet days
Daylight
12 h 42 min
5:20 AM – 6:03 PM
Cloud cover
67%
6th clearest
Wind
11 km/h
8th windiest
Solar energy
6.39 kWh/m²
Travel score
4.3
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical May day in Núi Thành reaches about 30°C in the afternoon and slips back to 26°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 31°C. Set against its neighbours, May runs about 2°C warmer than April and about 1°C cooler than June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12925
22926
32926
42926
53026
63026
73026
83026
93026
103026
113026
123026
133026
143026
153026
163026
173026
183026
193026
203026
213026
223026
233026
243026
253027
263027
273027
283027
293027
303127
313127

How May really feels in Núi Thành

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.

Núi Thành weather by month

How May compares with the rest of the year at a glance. May is the 4th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 21°16017.811.25.6
Feb24° / 21°9111.211.56.7
Mar26° / 23°868.911.97.0
Apr28° / 25°668.712.36.1
May30° / 26°9515.612.74.3
Jun31° / 27°9417.812.93.5
Jul31° / 27°10719.212.83.5
Aug31° / 27°13620.612.53.4
Sep29° / 26°29623.412.13.5
Oct27° / 25°41825.211.64.2
Nov26° / 24°45022.911.34.6
Dec24° / 22°36324.211.14.7

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 23% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 16% of May, with mostly cloudy or overcast conditions the remaining 61%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25248
35149
45050
54951
64852
74753
84753
94654
104555
114456
124357
134258
144060
154060
163862
173664
183664
193367
203367
213169
223169
233169
243169
253070
262971
273070
282971
292971
302971
312971

Chance of precipitation in May

Any precipitation

Núi Thành gets around 95 mm of rain over 15.6 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 50% and peaks near 63% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
133
234
335
436
537
638
739
840
941
1042
1144
1246
1347
1449
1550
1652
1753
1854
1956
2057
2158
2259
2360
2461
2562
2662
2763
2863
2963
3063
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 87% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
113069
202773
302575
402377
502179
601981
701783
801684
901585
1001486
1111485
1211386
1311386
1411287
1511287
1611287
1711188
1811188
1911089
2011089
211990
220991
230892
240793
250694
260694
270595
280496
290496
300397
310397

Wind in May

Winds average 11 km/h in May.

Across May, daily wind ranges from about 10 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312calm
1412calm
1512calm
1611calm
1711calm
1811calm
1911calm
2011calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 30 min at the start of May to 12 h 48 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 5:26 AM to 5:18 AM, and sunset from 5:59 PM to 6:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.55:265:59
212.65:265:59
312.65:255:59
412.65:256:00
512.65:246:00
612.65:246:00
712.65:236:00
812.65:236:01
912.65:236:01
1012.75:226:01
1112.75:226:02
1212.75:216:02
1312.75:216:02
1412.75:216:02
1512.75:206:03
1612.75:206:03
1712.75:206:03
1812.75:206:04
1912.75:196:04
2012.85:196:04
2112.85:196:05
2212.85:196:05
2312.85:186:05
2412.85:186:06
2512.85:186:06
2612.85:186:06
2712.85:186:07
2812.85:186:07
2912.85:186:07
3012.85:186:08
3112.85:186:08

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.39 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.93 kWh/m² to a high of 6.39 kWh/m² in May across the year — May's 6.39 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.5Intense
96.4Intense
106.4Intense
116.4Intense
126.4Intense
136.4Intense
146.4Intense
156.4Intense
166.4Intense
176.3Intense
186.3Intense
196.3Intense
206.3Intense
216.3Intense
226.3Intense
236.3Intense
246.3Intense
256.3Intense
266.3Intense
276.3Intense
286.3Intense
296.3Intense
306.3Intense
316.3Intense
Planning a trip in May

Hazard calendar for Núi Thành

In seasonPeak

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

Núi Thành sits in the Pacific typhoon belt; the season peaks July–October.

Núi Thành'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 Núi Thành?

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

4.3
Sightseeing
7th-best month of the year
5.9
Beach & pool
3rd-best month of the year

May is a reasonable time to visit Núi Thành for sightseeing.

What to pack for Núi Thành in May

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

In May, Núi Thành sees daytime highs around 30°C and nights near 26°C. Pack light clothes, rain gear and sun protection. About 16 days see rain.

light clothesrain gearsun protection

Sea temperature near Núi Thành in May

The nearest coast averages about 28°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 22 km away) is warmest in August at about 30°C and coldest in February near 23°C.

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

25°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan24Refreshing
Feb23Refreshing
Mar24Refreshing
Apr25Warm
May28Warm
Jun29Tropical
Jul29Tropical
Aug30Tropical
Sep29Tropical
Oct28Warm
Nov27Warm
Dec25Warm

UV index in Núi Thành 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 Núi Thành peaks around August 10 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highAug 10UV 13Dec 16UV 7
UV index (midday)Level
Jan9Very high
Feb11Extreme
Mar12Extreme
Apr12Extreme
May12Extreme
Jun12Extreme
Jul13Extreme
Aug13Extreme
Sep11Extreme
Oct11Extreme
Nov9Very high
Dec6High

Air quality in Núi Thành 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 Núi Thành is worst in April — around 26 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (September, 16 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateApr 1326 µg/m³Sep 1016 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb21Moderate
Mar25Moderate
Apr26Moderate
May22Moderate
Jun20Moderate
Jul16Moderate
Aug16Moderate
Sep16Moderate
Oct18Moderate
Nov17Moderate
Dec20Moderate
Location & terrain

Where is Núi Thành?

Núi Thành sits at 15.4°N, 108.7°E, 8 m above sea level, in Vietnam. The nearest listed city is Tam Kỳ, 25 km away.

Topography around Núi Thành

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

Within 3 km, the terrain around Núi Thành has only modest variations in elevation — a maximum elevation change of 65 m around an average of 4 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,136 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,392 m.

The land around Núi Thành is covered by grassland (20%) and water (20%) within 3 km, water (39%) and trees (38%) within 16 km, and water (46%) and trees (43%) within 80 km.

3 km
65 m
16 km
1,136 m
80 km
2,392 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Tam Kỳ 25 km · Mỹ Lại 37 km · Quảng Ngãi 37 km · Mỹ Khê 41 km · Lý Sơn 50 km · Đông Phú 54 km · Hoi An 61 km · Điện Bàn 67 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 Núi Thành (15.4319°, 108.6595°, elevation 8 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).