Miaoli weather in December

In December, Miaoli sees average daytime highs of 21°C and overnight lows near 16°C, with 54 mm of rain across 6.8 wet days and about 10.5 hours of daylight. It is the 10th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 22°C in the first days to 20°C by the end. The sky is clear or mostly clear about 53% of the time in December, and the air most often feels dry.

Daylight stretches from about 10 h 36 min at the start of December to 10 h 30 min by month's end. Set against the rest of the year, December is Miaoli's 3rd-clearest and 1st-windiest month. For the whole year in context, see Miaoli's year-round climate.

Daytime high
21°
10th warmest
Overnight low
16°
3rd coldest
Rainfall
54 mm
6.8 wet days
Daylight
10 h 30 min
6:38 AM – 5:07 PM
Cloud cover
43%
3rd clearest
Wind
19 km/h
1st windiest
Solar energy
3.05 kWh/m²
Travel score
7.3
out of 10

Miaoli is A county-administered city in Miaoli County, Taiwan.

Density
2,278/km²
people per km²
Founded
1981

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 22°C in the first days to 20°C by the end.

A typical December day in Miaoli reaches about 21°C in the afternoon and slips back to 16°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 24°C. Set against its neighbours, December runs about 3°C cooler than November and about 2°C warmer than January.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12218
22218
32217
42217
52217
62217
72217
82217
92117
102117
112117
122116
132116
142116
152116
162116
172116
182016
192016
202016
212016
222015
232015
242015
252015
262015
272015
282015
292015
302015
312015

How December really feels in Miaoli

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.

Miaoli weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan19° / 14°698.910.66.5
Feb19° / 15°9810.411.16.2
Mar22° / 17°13312.511.86.3
Apr25° / 20°14813.512.66.2
May28° / 23°21116.313.25.2
Jun30° / 25°25018.713.53.8
Jul31° / 26°23718.413.43.6
Aug30° / 26°32921.912.93.6
Sep29° / 25°18213.912.25.0
Oct27° / 22°705.111.47.6
Nov24° / 20°495.310.88.0
Dec21° / 16°546.810.57.3

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 53% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 16% of December, with mostly cloudy or overcast conditions the remaining 31%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17030
27030
37030
46931
56931
66832
76832
86832
96733
106733
116733
126733
136733
146733
156733
166832
176832
186931
197030
207030
217030
227030
237030
247030
257129
267228
277228
287228
297129
307129
317129

Chance of precipitation in December

Any precipitation

Miaoli gets around 54 mm of rain over 6.8 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 21% and peaks near 24% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
117
217
317
417
517
618
718
819
919
1020
1120
1221
1321
1422
1522
1622
1723
1823
1923
2023
2124
2224
2324
2424
2524
2624
2723
2823
2923
3023
3123

Humidity in December

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, December lands in the dry band about 35% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
122263615
224273614
325273513
426283412
527293311
627303210
72831329
82932319
93032318
103032307
113132307
123233306
133233296
143333295
153433285
163533275
173533275
183633265
193733254
203833254
213933244
224033234
234133223
244234213
254334213
264334203
274335192
284435192
294436182
304436182
314436181

Wind in December

Winds average 19 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 18 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
119light breeze
219light breeze
319light breeze
419light breeze
519light breeze
619light breeze
719light breeze
819light breeze
919light breeze
1019light breeze
1119light breeze
1219light breeze
1319light breeze
1419light breeze
1519light breeze
1619light breeze
1719light breeze
1819light breeze
1919light breeze
2019light breeze
2119light breeze
2219light breeze
2319light breeze
2419light breeze
2518light breeze
2618light breeze
2718light breeze
2818light breeze
2918light breeze
3018light breeze
3118light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 10 h 36 min at the start of December to 10 h 30 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 6:29 AM to 6:45 AM, and sunset from 5:04 PM to 5:15 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.66:295:04
210.66:305:04
310.66:305:04
410.66:315:04
510.56:325:04
610.56:325:05
710.56:335:05
810.56:345:05
910.56:345:05
1010.56:355:06
1110.56:355:06
1210.56:365:06
1310.56:375:06
1410.56:375:07
1510.56:385:07
1610.56:385:07
1710.56:395:08
1810.56:395:08
1910.56:405:09
2010.56:405:09
2110.56:415:09
2210.56:415:10
2310.56:425:10
2410.56:425:11
2510.56:435:11
2610.56:435:12
2710.56:445:12
2810.56:445:13
2910.56:445:14
3010.56:455:14
3110.56:455:15

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 3.05 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 3.05 kWh/m² to a high of 5.8 kWh/m² in July across the year — December's 3.05 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.2Moderate
23.2Moderate
33.2Moderate
43.2Moderate
53.1Moderate
63.1Moderate
73.1Moderate
83.1Moderate
93.1Moderate
103.1Moderate
113.1Moderate
123.0Moderate
133.0Moderate
143.0Moderate
153.0Moderate
163.0Moderate
173.0Moderate
183.0Moderate
193.0Moderate
203.1Moderate
213.1Moderate
223.1Moderate
233.1Moderate
243.1Moderate
253.1Moderate
263.1Moderate
273.1Moderate
283.1Moderate
293.1Moderate
303.2Moderate
313.2Moderate
Planning a trip in December

Hazard calendar for Miaoli

In seasonPeak

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

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

Miaoli's rainy season runs May–September, when most of the year's rain falls.

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

Is December a good time to visit Miaoli?

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

7.3
Sightseeing
3rd-best month of the year
4.3
Beach & pool
9th-best month of the year

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

What to pack for Miaoli in December

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

In December, Miaoli sees daytime highs around 21°C and nights near 16°C. Little to plan around — just the basics. About 7 days see rain.

Sea temperature near Miaoli in December

The nearest coast averages about 21°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 21 km away) is warmest in August at about 28°C and coldest in February near 18°C.

It's comfortable for a long swim from Mar 8 to Dec 26 — about 9.7 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan19Cool
Feb18Cool
Mar21Refreshing
Apr23Refreshing
May26Warm
Jun27Warm
Jul28Tropical
Aug28Tropical
Sep28Warm
Oct26Warm
Nov24Refreshing
Dec21Refreshing

UV index in Miaoli 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 Miaoli peaks around June 16 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecHighVery highExtremeVery highHighJun 16UV 12Dec 21UV 6
UV index (midday)Level
Jan6High
Feb8Very high
Mar10Very high
Apr9Very high
May11Extreme
Jun13Extreme
Jul10Extreme
Aug12Extreme
Sep9Very high
Oct7Very high
Nov7High
Dec6High

Air quality in Miaoli 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 Miaoli is worst in March — around 45 µg/m³ PM2.5 (poor), about 1.7× the cleanest month (October, 26 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateMar 2145 µg/m³Oct 1727 µg/m³
PM2.5 (µg/m³)Level
Jan33Moderate
Feb40Poor
Mar45Poor
Apr44Poor
May37Poor
Jun30Moderate
Jul27Moderate
Aug28Moderate
Sep29Moderate
Oct26Moderate
Nov29Moderate
Dec29Moderate
Location & terrain

Where is Miaoli?

Miaoli sits at 24.6°N, 120.8°E, 53 m above sea level, in Taiwan. The nearest listed city is Toufen, 16 km away.

HsinchuZhudongXizhouZhubeiBuziTaichungWufeng

Topography around Miaoli

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

Within 3 km, the terrain around Miaoli has only modest variations in elevation — a maximum elevation change of 185 m around an average of 66 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,234 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,838 m.

The land around Miaoli is covered by trees (49%) and artificial surfaces (34%) within 3 km, trees (64%) within 16 km, and trees (54%) and water (32%) within 80 km.

3 km
185 m
16 km
1,234 m
80 km
3,838 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Toufen 16 km · Hsinchu 30 km · Zhudong 33 km · Xizhou 35 km · Zhubei 36 km · Buzi 47 km · Taichung 49 km · Wufeng 57 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 Miaoli (24.5643°, 120.8237°, elevation 53 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).