Sơn Trà weather in May

In May, Sơn Trà sees average daytime highs of 31°C and overnight lows near 26°C, with 118 mm of rain across 15.7 wet days and about 12.7 hours of daylight. It is the 4th-warmest and 7th-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 19% of the time in May, and the air most often feels miserable.

Daylight stretches from about 12 h 36 min at the start of May to 12 h 54 min by month's end. Set against the rest of the year, May is Sơn Trà's 6th-clearest and 8th-windiest month. For the whole year in context, see Sơn Trà's year-round climate.

Daytime high
31°
4th warmest
Overnight low
26°
9th coldest
Rainfall
118 mm
15.7 wet days
Daylight
12 h 42 min
5:21 AM – 6:06 PM
Cloud cover
69%
6th clearest
Wind
8 km/h
8th windiest
Solar energy
6.29 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 31°C through the month.

A typical May day in Sơn Trà reaches about 31°C in the afternoon and slips back to 26°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 33°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)
13026
23026
33026
43026
53126
63126
73126
83126
93126
103126
113126
123126
133126
143126
153126
163126
173126
183126
193127
203127
213127
223227
233227
243227
253227
263227
273227
283227
293227
303227
313227

How May really feels in Sơn Trà

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
12 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.

Sơn Trà weather by month

How May compares with the rest of the year at a glance. May is the 4th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan24° / 20°17816.911.25.7
Feb24° / 21°9011.211.56.6
Mar27° / 23°879.711.96.7
Apr29° / 25°768.712.45.6
May31° / 26°11815.712.73.8
Jun32° / 28°8414.512.93.1
Jul32° / 27°11316.412.93.1
Aug32° / 27°14719.312.53.0
Sep30° / 26°28922.712.13.3
Oct28° / 25°42224.511.64.1
Nov26° / 23°46022.111.34.7
Dec24° / 21°35322.811.14.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 19% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 18% of May, with mostly cloudy or overcast conditions the remaining 63%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14951
24852
34852
44852
54852
64753
74654
84555
94456
104357
114258
124060
134060
143862
153763
163664
173367
183367
193268
203070
213070
222971
232971
242971
252773
262773
272773
282773
292773
302872
312773

Chance of precipitation in May

Any precipitation

Sơn Trà gets around 118 mm of rain over 15.7 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 50% and peaks near 59% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
136
237
338
439
540
641
742
843
944
1044
1145
1246
1347
1448
1550
1651
1752
1853
1954
2055
2156
2256
2357
2458
2558
2659
2759
2858
2958
3058
3157

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 88% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Muggy (%)Oppressive (%)Miserable (%)
112079
211980
311881
411782
501684
601684
701585
811485
911386
1011386
1111287
1211287
1311287
1411188
1511188
1611188
1711089
1811089
1911089
201990
211990
221990
231891
240892
250793
260793
270694
280595
290595
300496
310496

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
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 36 min at the start of May to 12 h 54 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 5:27 AM to 5:18 AM, and sunset from 6:01 PM to 6:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.65:276:01
212.65:276:02
312.65:266:02
412.65:266:02
512.65:256:02
612.65:256:03
712.65:246:03
812.75:246:03
912.75:236:04
1012.75:236:04
1112.75:236:04
1212.75:226:04
1312.75:226:05
1412.75:226:05
1512.75:216:05
1612.75:216:06
1712.85:216:06
1812.85:206:06
1912.85:206:07
2012.85:206:07
2112.85:206:07
2212.85:196:08
2312.85:196:08
2412.85:196:08
2512.85:196:09
2612.85:196:09
2712.85:196:09
2812.95:186:10
2912.95:186:10
3012.95:186:10
3112.95:186:11

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 6.29 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.56 kWh/m² to a high of 6.29 kWh/m² in May across the year — May's 6.29 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.3Intense
46.3Intense
56.3Intense
66.3Intense
76.3Intense
86.3Intense
96.3Intense
106.3Intense
116.3Intense
126.3Intense
136.3Intense
146.3Intense
156.3Intense
166.3Intense
176.3Intense
186.3Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.3Intense
276.3Intense
286.3Intense
296.3Intense
306.3Intense
316.3Intense
Planning a trip in May

Hazard calendar for Sơn Trà

In seasonPeak

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

Sơn Trà sits in the Pacific typhoon belt; the season peaks July–October.

Sơn Trà'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 Sơn Trà?

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
5.7
Beach & pool
4th-best month of the year

May is a weaker month for outdoor sightseeing in Sơn Trà.

What to pack for Sơn Trà in May

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

In May, Sơn Trà sees daytime highs around 31°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 Sơn Trà 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 17 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 Sơn Trà 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 Sơn Trà peaks around August 12 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highHighAug 12UV 13Dec 16UV 6
UV index (midday)Level
Jan9Very high
Feb10Very high
Mar11Extreme
Apr11Extreme
May11Extreme
Jun12Extreme
Jul12Extreme
Aug13Extreme
Sep12Extreme
Oct11Extreme
Nov8Very high
Dec6High

Air quality in Sơn Trà 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 Sơn Trà is worst in March — around 49 µg/m³ PM2.5 (poor), about 3.0× the cleanest month (July, 16 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 2048 µg/m³Jul 2416 µg/m³
PM2.5 (µg/m³)Level
Jan25Moderate
Feb29Moderate
Mar49Poor
Apr42Poor
May28Moderate
Jun21Moderate
Jul16Moderate
Aug17Moderate
Sep20Moderate
Oct22Moderate
Nov21Moderate
Dec23Moderate
Location & terrain

Where is Sơn Trà?

Sơn Trà sits at 16.1°N, 108.2°E, 8 m above sea level, in Vietnam. The nearest listed city is An Hải, 1.0 km away.

Topography around Sơn Trà

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

Within 3 km, the terrain around Sơn Trà has only modest variations in elevation — a maximum elevation change of 20 m around an average of 6 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 683 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,755 m.

The land around Sơn Trà is covered by artificial surfaces (62%) and water (28%) within 3 km, water (52%) within 16 km, and trees (45%) and water (45%) within 80 km.

3 km
20 m
16 km
683 m
80 km
1,755 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: An Hải 1.0 km · Da Nang 1.0 km · Thanh Khê 5.0 km · Cẩm Lệ 6.0 km · Hòa Cường 6.0 km · Hải Châu 19 km · Điện Bàn 19 km · Hoi An 23 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 Sơn Trà (16.0607°, 108.2326°, 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).