Hengchun weather in December

In December, Hengchun sees average daytime highs of 23°C and overnight lows near 21°C, with 48 mm of rain across 7 wet days and about 10.7 hours of daylight. It is the 10th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 24°C in the first days to 22°C by the end. The sky is clear or mostly clear about 47% of the time in December, and the air most often feels humid.

Daylight stretches from about 10 h 48 min at the start of December to 10 h 42 min by month's end. Set against the rest of the year, December is Hengchun's 7th-clearest and 1st-windiest month. For the whole year in context, see Hengchun's year-round climate.

Daytime high
23°
10th warmest
Overnight low
21°
3rd coldest
Rainfall
48 mm
7 wet days
Daylight
10 h 42 min
6:33 AM – 5:13 PM
Cloud cover
49%
7th clearest
Wind
33 km/h
1st windiest
Solar energy
3.37 kWh/m²
Travel score
7.5
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 24°C in the first days to 22°C by the end.

A typical December day in Hengchun reaches about 23°C in the afternoon and slips back to 21°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 25°C. Set against its neighbours, December runs about 2°C cooler than November and about 1°C warmer than January.

15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12422
22422
32422
42422
52322
62322
72322
82322
92322
102322
112321
122321
132321
142321
152321
162321
172321
182321
192321
202221
212221
222221
232221
242221
252221
262221
272221
282221
292221
302220
312220

How December really feels in Hengchun

Once humidity and wind are folded in, December 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

December 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 December compares with the rest of the year at a glance. December is the 10th-warmest and 8th-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 December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 47% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 18% of December, with mostly cloudy or overcast conditions the remaining 35%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16931
26931
36931
46931
56832
66832
76733
86634
96634
106535
116535
126436
136436
146436
156436
166436
176436
186436
196337
206337
216337
226337
236337
246337
256337
266436
276337
286337
296436
306337
316337

Chance of precipitation in December

Any precipitation

Hengchun gets around 48 mm of rain over 7 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 22% and peaks near 25% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
119
219
319
419
519
619
719
819
920
1020
1121
1221
1322
1422
1523
1623
1723
1824
1924
2025
2125
2225
2325
2425
2525
2625
2725
2825
2924
3024
3124

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the humid band about 39% of days. Sticky, muggy-or-worse air turns up on roughly 40% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1012274812
2013294711
3014304511
4014314410
501532449
601533439
701534428
801635418
911635417
1011736407
1111736397
1211736396
1311837386
1411837376
1521838376
1621938366
1721939356
1821940345
1932040325
2032041315
2132141295
2242242285
2342243274
2442244264
2552245254
2652246243
2752246233
2852247233
2952247232
3052248232
3152248232

Wind in December

Winds average 33 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 31 km/h on the calmest days to 33 km/h at its breeziest. It stays fairly steady from day to day.

010203040151015202531
Wind speed (km/h)Feels
133windy
233windy
333windy
433windy
533windy
633windy
733windy
833windy
933windy
1033windy
1133windy
1233windy
1333windy
1433windy
1533windy
1633windy
1733windy
1833windy
1932windy
2032windy
2132windy
2232windy
2332windy
2432windy
2532windy
2631windy
2731windy
2831windy
2931windy
3031windy
3131windy

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 48 min at the start of December to 10 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over December. Sunrise moves from 6:24 AM to 6:40 AM, and sunset from 5:09 PM to 5:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.86:245:09
210.76:255:09
310.76:265:10
410.76:265:10
510.76:275:10
610.76:275:10
710.76:285:10
810.76:295:11
910.76:295:11
1010.76:305:11
1110.76:305:11
1210.76:315:12
1310.76:325:12
1410.76:325:12
1510.76:335:13
1610.76:335:13
1710.76:345:13
1810.76:345:14
1910.76:355:14
2010.76:355:15
2110.76:365:15
2210.76:365:16
2310.76:375:16
2410.76:375:17
2510.76:385:17
2610.76:385:18
2710.76:395:18
2810.76:395:19
2910.76:395:19
3010.76:405:20
3110.76:405:20

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.37 kWh/m² — the year's lowest.

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 — December's 3.37 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.6Moderate
23.6Moderate
33.6Moderate
43.6Moderate
53.5Moderate
63.5Moderate
73.5Moderate
83.5Moderate
93.5Moderate
103.4Moderate
113.4Moderate
123.4Moderate
133.4Moderate
143.4Moderate
153.4Moderate
163.4Moderate
173.4Moderate
183.3Moderate
193.3Moderate
203.3Moderate
213.3Moderate
223.3Moderate
233.3Moderate
243.3Moderate
253.4Moderate
263.4Moderate
273.4Moderate
283.4Moderate
293.4Moderate
303.4Moderate
313.4Moderate
Planning a trip in December

Hazard calendar for Hengchun

In seasonPeak

In December, Hengchun sits inside its pacific typhoon 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 December a good time to visit Hengchun?

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

7.5
Sightseeing
3rd-best month of the year
5.7
Beach & pool
7th-best month of the year

December is one of the better times to visit Hengchun for general sightseeing.

What to pack for Hengchun in December

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

In December, Hengchun sees daytime highs around 23°C and nights near 21°C. Pack a windbreaker. Worth having: light clothes. About 7 days see rain.

a windbreakerlight clothes

Sea temperature near Hengchun in December

The nearest coast averages about 25°C in December — 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 December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 6 — enough to warrant sun protection. 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 December

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where December 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
December 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).