Thái Hòa weather in May

In May, Thái Hòa sees average daytime highs of 32°C and overnight lows near 24°C, with 175 mm of rain across 17.5 wet days and about 12.9 hours of daylight. It is the 3rd-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 12% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 12 h 42 min at the start of May to 13 hours by month's end. Set against the rest of the year, May is Thái Hòa's 8th-clearest and 4th-windiest month. For the whole year in context, see Thái Hòa's year-round climate.

Daytime high
32°
3rd warmest
Overnight low
24°
9th coldest
Rainfall
175 mm
17.5 wet days
Daylight
12 h 54 min
5:30 AM – 6:23 PM
Cloud cover
77%
8th clearest
Wind
6 km/h
4th windiest
Solar energy
5.28 kWh/m²
Travel score
3.3
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical May day in Thái Hòa reaches about 32°C in the afternoon and slips back to 24°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 36°C. Set against its neighbours, May runs about 2°C warmer than April and about 1°C cooler than June.

20°25°30°35°40°151015202531
Avg high (°C)Avg low (°C)
13123
23123
33123
43123
53123
63123
73123
83123
93123
103123
113124
123124
133124
143124
153224
163224
173224
183224
193224
203224
213224
223224
233224
243225
253225
263225
273225
283225
293225
303225
313325

How May really feels in Thái Hòa

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.

Thái Hòa weather by month

How May compares with the rest of the year at a glance. May is the 3rd-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan20° / 14°6111.4115.8
Feb22° / 15°509.911.46.3
Mar25° / 18°801311.96.2
Apr29° / 21°11614.612.44.7
May32° / 24°17517.512.93.3
Jun33° / 26°12212.913.12.9
Jul33° / 26°18014.9133.0
Aug31° / 25°27920.712.63.1
Sep30° / 24°32220.412.13.7
Oct27° / 21°29217.811.65.3
Nov24° / 18°1071211.16.4
Dec21° / 15°7711.910.96.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 12% of May, with mostly cloudy or overcast conditions the remaining 76%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13466
23466
33466
43268
53268
63268
73169
83070
92971
102872
112872
122773
132773
142674
152575
162476
172377
182278
192179
202179
212080
221882
231882
241882
251783
261783
271783
281684
291684
301684
311585

Chance of precipitation in May

Any precipitation

Thái Hòa gets around 175 mm of rain over 17.5 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 56% and peaks near 59% on the wettest days.

0%20%40%60%151015202531
Rain chance (%)
154
255
355
455
556
656
757
857
958
1058
1158
1258
1359
1459
1559
1659
1759
1858
1958
2057
2157
2256
2356
2455
2555
2655
2754
2854
2954
3053
3153

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the oppressive band about 72% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
14137211
23127312
33127312
43117214
53117115
63107116
72107117
82107018
92106919
10296920
11296920
12296821
13296821
14286921
15286921
16286921
17187021
18177121
19177121
20177220
21167320
22167320
23167320
24157420
25157420
26147520
27147520
28147520
29137620
30037720
31037720

Wind in May

Winds average 6 km/h in May.

Across May, daily wind ranges from about 5 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 42 min at the start of May to 13 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over May. Sunrise moves from 5:37 AM to 5:26 AM, and sunset from 6:18 PM to 6:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.75:376:18
212.75:366:18
312.75:366:18
412.75:356:19
512.75:356:19
612.85:346:19
712.85:346:20
812.85:336:20
912.85:336:20
1012.85:326:21
1112.85:326:21
1212.85:316:22
1312.95:316:22
1412.95:306:22
1512.95:306:23
1612.95:306:23
1712.95:296:23
1812.95:296:24
1912.95:296:24
2012.95:286:25
2112.95:286:25
2213.05:286:25
2313.05:286:26
2413.05:276:26
2513.05:276:27
2613.05:276:27
2713.05:276:27
2813.05:276:28
2913.05:266:28
3013.05:266:28
3113.05:266:29

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 5.28 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 2.66 kWh/m² to a high of 5.28 kWh/m² in May across the year — May's 5.28 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
145.3Bright
155.3Bright
165.3Bright
175.2Bright
185.2Bright
195.2Bright
205.2Bright
215.2Bright
225.2Bright
235.2Bright
245.2Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
315.3Bright
Planning a trip in May

Hazard calendar for Thái Hòa

In seasonPeak

In May, Thái Hòa sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Thái Hòa's rainy season runs July–October, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Thái Hòa?

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

3.3
Sightseeing
9th-best month of the year
5.2
Beach & pool
7th-best month of the year

May is a weaker month for outdoor sightseeing in Thái Hòa.

What to pack for Thái Hòa in May

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

In May, Thái Hòa sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.

light clothesrain gearsun protection

Sea temperature near Thái Hòa 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 69 km away) is warmest in August at about 30°C and coldest in February near 21°C.

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

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan21Refreshing
Feb21Refreshing
Mar22Refreshing
Apr24Warm
May28Warm
Jun30Tropical
Jul30Tropical
Aug30Tropical
Sep30Tropical
Oct28Warm
Nov26Warm
Dec23Refreshing

UV index in Thái Hòa in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Thái Hòa peaks around August 14 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 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 14UV 13Dec 17UV 7
UV index (midday)Level
Jan8Very high
Feb10Very high
Mar11Extreme
Apr11Extreme
May10Extreme
Jun13Extreme
Jul13Extreme
Aug14Extreme
Sep12Extreme
Oct10Extreme
Nov8Very high
Dec7High

Air quality in Thái Hòa 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 Thái Hòa is worst in April — around 81 µg/m³ PM2.5 (unhealthy), about 5.3× the cleanest month (July, 15 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyModeratePoorApr 1278 µg/m³Jul 2215 µg/m³
PM2.5 (µg/m³)Level
Jan39Poor
Feb44Poor
Mar66Unhealthy
Apr81Unhealthy
May31Moderate
Jun21Moderate
Jul15Moderate
Aug16Moderate
Sep22Moderate
Oct30Moderate
Nov34Moderate
Dec39Poor
Location & terrain

Where is Thái Hòa?

Thái Hòa sits at 18.9°N, 105.0°E, 64 m above sea level, in Vietnam. The nearest listed city is Kim Liên, 36 km away.

Topography around Thái Hòa

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

Within 3 km, the terrain around Thái Hòa has large variations in elevation — a maximum elevation change of 642 m around an average of 170 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,319 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,933 m.

The land around Thái Hòa is covered by trees (89%) within 3 km, trees (90%) within 16 km, and trees (86%) within 80 km.

3 km
642 m
16 km
1,319 m
80 km
1,933 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Kim Liên 36 km · Diễn Thành 66 km · Yên Vinh 78 km · Vinh 80 km · Bến Thủy 82 km · Bản Na Hỷ 85 km · Nghi Xuân 87 km · Hoàng Mai 87 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 Thái Hòa (18.9203°, 104.9744°, elevation 64 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. 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).