Tangjin weather in December

In December, Tangjin sees average daytime highs of 5°C and overnight lows near -1°C, with 24 mm of precipitation across 5.7 wet days and about 9.5 hours of daylight. It is the 10th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 7°C in the first days to 3°C by the end. The sky is clear or mostly clear about 31% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 42 min at the start of December to 9 h 30 min by month's end. Set against the rest of the year, December is Tangjin's 8th-clearest and 1st-windiest month. For the whole year in context, see Tangjin's year-round climate.

Daytime high
10th warmest
Overnight low
-1°
3rd coldest
Precipitation
24 mm
5.7 wet days
Daylight
9 h 30 min
7:45 AM – 5:14 PM
Cloud cover
57%
8th clearest
Wind
13 km/h
1st windiest
Solar energy
2.22 kWh/m²
Travel score
0.3
out of 10

Tangjin is city in Chungcheongnam-do, South Korea.

Density
49/km²
people per km²

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 7°C in the first days to 3°C by the end.

A typical December day in Tangjin reaches about 5°C in the afternoon and slips back to -1°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 0°C and 10°C. Set against its neighbours, December runs about 7°C cooler than November and about 3°C warmer than January.

-10°-5°10°15°151015202531
Avg high (°C)Avg low (°C)
182
282
372
471
571
671
771
861
960
1060
1160
1260
1350
145-1
155-1
165-1
175-1
185-1
195-1
205-1
214-1
224-2
234-2
244-2
254-2
264-2
274-2
284-2
293-2
303-3
313-3

How December really feels in Tangjin

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 31 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
31
wind chill below the day's low

The story in December is cold — wind chill drags the overnight "feels like" below the raw low.

Tangjin 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 daysSnow daysDaylight (hours)Travel score
Jan / -4°214.22.89.80.0
Feb / -2°2641.510.60.1
Mar / 385.80.911.72.0
Apr15° / 666.9012.95.1
May21° / 14°827.1013.96.9
Jun24° / 19°1167.5014.57.1
Jul27° / 23°24814.7014.35.5
Aug28° / 24°22013.9013.45.4
Sep25° / 19°1247.4012.37.2
Oct19° / 13°565.40117.0
Nov12° / 487.20.4103.5
Dec / -1°245.72.69.50.3

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 19% of December, with mostly cloudy or overcast conditions the remaining 49%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15347
25248
35149
45149
55050
65050
74951
84852
94852
104753
114753
124852
134852
144951
154951
165050
175050
185050
195149
205248
215248
225347
235347
245347
255347
265347
275347
285248
295248
305149
315050

Chance of precipitation in December

Any precipitationSnow

Tangjin gets around 24 mm of rain and snow over 5.7 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 19% and peaks near 23% on the wettest days, and about 3 days bring snow. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
1236
2236
3236
4227
5227
6227
7218
8218
9218
10208
11208
12198
13198
14188
15188
16188
17178
18178
19178
20178
21178
22169
23169
24169
25169
26169
271610
281610
291610
301610
311510

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 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in December

Winds average 13 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 42 min at the start of December to 9 h 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 7:34 AM to 7:52 AM, and sunset from 5:13 PM to 5:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.77:345:13
29.67:345:13
39.67:355:13
49.67:365:13
59.67:375:13
69.67:385:13
79.67:395:13
89.67:395:13
99.57:405:13
109.57:415:13
119.57:425:13
129.57:425:13
139.57:435:13
149.57:445:14
159.57:455:14
169.57:455:14
179.57:465:14
189.57:465:15
199.57:475:15
209.57:475:16
219.57:485:16
229.57:485:16
239.57:495:17
249.57:495:17
259.57:505:18
269.57:505:19
279.57:505:19
289.57:515:20
299.57:515:20
309.57:515:21
319.57:525:22

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.22 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.22 kWh/m² to a high of 5.88 kWh/m² in May across the year — December's 2.22 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.3Moderate
22.2Moderate
32.2Moderate
42.2Moderate
52.2Moderate
62.2Moderate
72.2Moderate
82.2Moderate
92.2Moderate
102.2Moderate
112.2Moderate
122.2Moderate
132.2Moderate
142.2Moderate
152.2Moderate
162.2Moderate
172.2Moderate
182.2Moderate
192.2Moderate
202.2Moderate
212.2Moderate
222.2Moderate
232.3Moderate
242.3Moderate
252.3Moderate
262.3Moderate
272.3Moderate
282.3Moderate
292.3Moderate
302.3Moderate
312.3Moderate
Planning a trip in December

Hazard calendar for Tangjin

In seasonPeak

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

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

Tangjin's rainy season runs June–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 Tangjin?

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

0.3
Sightseeing
10th-best month of the year
0.0
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Tangjin.

What to pack for Tangjin in December

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

In December, Tangjin sees daytime highs around 5°C and nights near -1°C. Pack a warm layer. Worth having: a heavy coat. About 6 days see rain.

a warm layera heavy coat

Sea temperature near Tangjin in December

The nearest coast averages about 10°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 26 km away) is warmest in August at about 23°C and coldest in February near 4°C.

It's comfortable for a long swim from Jul 12 to Oct 14 — about 3.1 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan6Bracing
Feb4Bracing
Mar5Bracing
Apr8Bracing
May12Bracing
Jun16Cool
Jul21Refreshing
Aug23Refreshing
Sep23Refreshing
Oct20Cool
Nov15Cool
Dec10Bracing

UV index in Tangjin in December

LowModerateHighVery highExtreme

Clear-sky midday UV in December peaks around 2. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tangjin peaks around July 24 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 23 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 24UV 8Dec 23UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr6High
May6High
Jun7High
Jul8Very high
Aug8Very high
Sep7Very high
Oct5High
Nov3Moderate
Dec2Low

Air quality in Tangjin 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 Tangjin is worst in March — around 92 µg/m³ PM2.5 (unhealthy), about 2.0× the cleanest month (July, 46 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyMar 1391 µg/m³Jul 2246 µg/m³
PM2.5 (µg/m³)Level
Jan83Unhealthy
Feb85Unhealthy
Mar92Unhealthy
Apr75Unhealthy
May62Unhealthy
Jun57Unhealthy
Jul46Poor
Aug47Poor
Sep61Unhealthy
Oct74Unhealthy
Nov79Unhealthy
Dec73Unhealthy
Location & terrain

Where is Tangjin?

Tangjin sits at 36.9°N, 126.6°E, 20 m above sea level, in South Korea. The nearest listed city is Taesal-li, 18 km away.

AsanHwaseong-siPyeongtaekSeonghwan

Topography around Tangjin

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

Within 3 km, the terrain around Tangjin has only modest variations in elevation — a maximum elevation change of 129 m around an average of 31 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 446 m; within 80 km, large variations in elevation — a maximum elevation change of 800 m.

The land around Tangjin is covered by trees (40%), cropland (30%) and artificial surfaces (21%) within 3 km, cropland (39%) and trees (37%) within 16 km, and water (40%) and trees (31%) within 80 km.

3 km
129 m
16 km
446 m
80 km
800 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Taesal-li 18 km · Seosan 20 km · Yesan 31 km · Hongseong 33 km · Asan 36 km · Hwaseong-si 39 km · Pyeongtaek 42 km · Seonghwan 45 km

South Korea travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
220 V · 60 Hz
Prices
≈ 57% of US
price level, 2025
GDP per capita
$36,227
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
99%
of population, 2024
Homicide rate
0.5
per 100k, 2023
Road deaths
8.6
per 100k/yr, 2019
Income group
High
World Bank
English
Moderate
EF EPI 522
Religion
none 60%Protestant 17%Buddhist 16%Catholic 6%

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 Tangjin (36.8944°, 126.6297°, elevation 20 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).