Hengchun weather in May

In May, Hengchun sees average daytime highs of 27°C and overnight lows near 26°C, with 177 mm of rain across 13.9 wet days and about 13 hours of daylight. It is the 5th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 30% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 12 h 48 min at the start of May to 13 h 12 min by month's end. Set against the rest of the year, May is Hengchun's 9th-clearest and 11th-windiest month. For the whole year in context, see Hengchun's year-round climate.

Daytime high
27°
5th warmest
Overnight low
26°
8th coldest
Rainfall
177 mm
13.9 wet days
Daylight
13 hours
5:22 AM – 6:25 PM
Cloud cover
63%
9th clearest
Wind
22 km/h
11th windiest
Solar energy
5.88 kWh/m²
Travel score
5.9
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical May day in Hengchun reaches about 27°C in the afternoon and slips back to 26°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 28°C. Set against its neighbours, May runs about 2°C warmer than April and about 1°C cooler than June.

20°23°25°28°30°151015202531
Avg high (°C)Avg low (°C)
12625
22625
32625
42725
52725
62725
72725
82725
92725
102725
112725
122725
132726
142726
152726
162726
172726
182726
192726
202726
212726
222726
232726
242726
252726
262726
272726
282726
292726
302826
312826

How May really feels in Hengchun

Once humidity and wind are folded in, May averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Hengchun weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan22° / 20°488.310.87.0
Feb22° / 21°347.411.27.2
Mar24° / 22°296.611.87.7
Apr25° / 24°447.212.57.4
May27° / 26°17713.9135.9
Jun28° / 27°29819.813.34.5
Jul28° / 27°29219.513.24.5
Aug28° / 27°37020.112.84.5
Sep28° / 26°21313.912.15.6
Oct27° / 25°1066.611.57.3
Nov25° / 23°78610.97.8
Dec23° / 21°48710.77.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 30% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 14% of May, with mostly cloudy or overcast conditions the remaining 57%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15842
25743
35644
45545
55545
65446
75347
85347
95248
105248
115149
124951
134852
144852
154654
164555
174357
184258
194060
203862
213763
223565
233466
243268
253268
263169
273070
283070
292872
302872
312773

Chance of precipitation in May

Any precipitation

Hengchun gets around 177 mm of rain over 13.9 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 44% and peaks near 58% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
128
229
330
431
532
633
733
834
935
1035
1136
1237
1339
1440
1541
1643
1745
1846
1948
2049
2151
2252
2354
2455
2556
2656
2757
2857
2957
3058
3158

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 46% of days. Sticky, muggy-or-worse air turns up on roughly 98% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
16195619
26195520
36195421
45195323
55185324
64185226
74175128
83175030
93165031
103155033
112144934
122134936
132134937
141124938
151114939
161104940
17194841
18194842
19184844
20184745
21174646
22174547
23174449
24174250
25174151
26173953
27163756
28163657
29163459
30163261
31153064

Wind in May

Winds average 22 km/h in May.

Across May, daily wind ranges from about 21 km/h on the calmest days to 23 km/h at its breeziest. It stays fairly steady from day to day.

0102030151015202531
Wind speed (km/h)Feels
123breezy
223breezy
323breezy
423breezy
523breezy
623breezy
723breezy
823breezy
922breezy
1022breezy
1122breezy
1222breezy
1322breezy
1422breezy
1522breezy
1622breezy
1722breezy
1821breezy
1921breezy
2021breezy
2121breezy
2221breezy
2321breezy
2421breezy
2521breezy
2621breezy
2721breezy
2821breezy
2921breezy
3021breezy
3121breezy

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 h 48 min at the start of May to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 24 minutes over May. Sunrise moves from 5:30 AM to 5:17 AM, and sunset from 6:18 PM to 6:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:306:18
212.85:306:19
312.85:296:19
412.95:286:19
512.95:286:20
612.95:276:20
712.95:266:21
812.95:266:21
912.95:256:22
1013.05:256:22
1113.05:246:23
1213.05:246:23
1313.05:236:23
1413.05:236:24
1513.05:226:24
1613.05:226:25
1713.15:216:25
1813.15:216:26
1913.15:216:26
2013.15:206:27
2113.15:206:27
2213.15:206:27
2313.15:196:28
2413.25:196:28
2513.25:196:29
2613.25:186:29
2713.25:186:30
2813.25:186:30
2913.25:186:31
3013.25:186:31
3113.25:176:31

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 3.37 kWh/m² to a high of 6.03 kWh/m² in April across the year — May's 5.88 kWh/m² sits near the top of that range.

0246151015202531
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.1Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.0Intense
116.0Intense
126.0Intense
136.0Bright
146.0Bright
155.9Bright
165.9Bright
175.9Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
315.7Bright
Planning a trip in May

Hazard calendar for Hengchun

In seasonPeak

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

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

Hengchun's monsoon runs May–September, 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 Hengchun?

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

5.9
Sightseeing
8th-best month of the year
6.1
Beach & pool
6th-best month of the year

May is a reasonable time to visit Hengchun for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Hengchun in May

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

In May, Hengchun sees daytime highs around 27°C and nights near 26°C. Pack light clothes. Worth having: rain gear, sun protection and a windbreaker. About 14 days see rain.

light clothesrain gearsun protectiona windbreaker

Sea temperature near Hengchun 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 18 km away) is warmest in July at about 29°C and coldest in January near 24°C.

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

22°24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan24Warm
Feb24Warm
Mar25Warm
Apr26Warm
May28Warm
Jun29Tropical
Jul29Tropical
Aug29Tropical
Sep29Tropical
Oct28Warm
Nov26Warm
Dec25Warm

UV index in Hengchun 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 Hengchun peaks around August 13 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highVery highExtremeVery highHighAug 13UV 12Dec 21UV 6
UV index (midday)Level
Jan7High
Feb9Very high
Mar10Extreme
Apr10Very high
May10Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep11Extreme
Oct9Very high
Nov8Very high
Dec6High

Air quality in Hengchun 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 Hengchun is worst in March — around 16 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (June, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateMar 1416 µg/m³Jun 178 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb15Moderate
Mar16Moderate
Apr13Moderate
May9Good
Jun8Good
Jul9Good
Aug11Good
Sep10Good
Oct13Moderate
Nov13Moderate
Dec15Moderate
Location & terrain

Where is Hengchun?

Hengchun sits at 22.0°N, 120.7°E, 25 m above sea level, in Taiwan. The nearest listed city is Donggang, 60 km away.

DonggangChaozhouFengshanKaohsiungTaitungTainanYongkangYujing

Topography around Hengchun

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

Within 3 km, the terrain around Hengchun has significant variations in elevation — a maximum elevation change of 368 m around an average of 58 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 887 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,015 m.

The land around Hengchun is covered by trees (51%) and cropland (22%) within 3 km, water (54%) and trees (39%) within 16 km, and water (74%) and trees (22%) within 80 km.

3 km
368 m
16 km
887 m
80 km
3,015 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Donggang 60 km · Chaozhou 64 km · Fengshan 80 km · Kaohsiung 81 km · Taitung 94 km · Tainan 123 km · Yongkang 124 km · Yujing 128 km

Taiwan travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B
110 / 220 V · 60 Hz
Happiness
6.7 / 10
World Happiness, 2025
Religion
Buddhist 35%Taoist 33%none or unspecified 18%folk religion approximately 10%

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 Hengchun (22.0042°, 120.7439°, elevation 25 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).