Ungsang weather in December

In December, Ungsang sees average daytime highs of 9°C and overnight lows near 1°C, with 27 mm of precipitation across 3.6 wet days and about 9.7 hours of daylight. It is the 10th-warmest and 12th-wettest month of the year here.

Highs ease over the month, from about 11°C in the first days to 8°C by the end. The sky is clear or mostly clear about 60% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 48 min at the start of December to 9 h 36 min by month's end. Set against the rest of the year, December is Ungsang's 1st-clearest and 2nd-windiest month. For the whole year in context, see Ungsang's year-round climate.

Daytime high
10th warmest
Overnight low
3rd coldest
Precipitation
27 mm
3.6 wet days
Daylight
9 h 36 min
7:31 AM – 5:08 PM
Cloud cover
35%
1st clearest
Wind
13 km/h
2nd windiest
Solar energy
2.65 kWh/m²
Travel score
2.2
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 11°C in the first days to 8°C by the end.

A typical December day in Ungsang reaches about 9°C in the afternoon and slips back to 1°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 4°C and 14°C. Set against its neighbours, December runs about 6°C cooler than November and about 2°C warmer than January.

-5°10°15°20°151015202531
Avg high (°C)Avg low (°C)
1113
2113
3112
4112
5112
6102
7102
8101
9101
10101
1191
1291
1391
1490
1590
1690
1790
1890
1980
2080
2180
2280
2380
2480
2580
268-1
278-1
288-1
298-1
308-1
317-1

How December really feels in Ungsang

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.

Ungsang weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -1°314.40.79.91.0
Feb / 3950.910.72.0
Mar13° / 717.40.511.74.0
Apr18° / 927.6012.96.3
May23° / 13°1007.8013.87.1
Jun25° / 18°1439.1014.36.7
Jul28° / 23°21613.3014.15.3
Aug29° / 23°21314.2013.34.9
Sep25° / 19°17310.4012.26.6
Oct21° / 13°735.1011.17.4
Nov15° / 484.90.110.15.4
Dec / 273.60.39.72.2

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 60% of the time in December, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 28%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17030
27030
37129
47129
57129
67228
77228
87228
97327
107228
117228
127228
137228
147228
157129
167129
177228
187129
197129
207129
217228
227327
237327
247327
257426
267426
277525
287525
297624
307624
317624

Chance of precipitation in December

Any precipitationSnow

Ungsang gets around 27 mm of rain and snow over 3.6 wet days in December, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 12% and peaks near 16% on the wettest days, and about 0 day brings snow. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
1161
2161
3161
4151
5151
6151
7141
8141
9131
10131
11121
12121
13121
14111
15111
16110
17100
18100
19101
20101
21101
2291
2391
2491
2591
2691
2791
2892
29102
30102
31102

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.

Across December, daily wind ranges from about 12 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light 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
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 48 min at the start of December to 9 h 36 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 7:20 AM to 7:37 AM, and sunset from 5:07 PM to 5:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.87:205:07
29.87:205:06
39.87:215:06
49.77:225:06
59.77:235:06
69.77:245:06
79.77:255:06
89.77:255:06
99.77:265:07
109.77:275:07
119.77:285:07
129.67:285:07
139.67:295:07
149.67:305:08
159.67:305:08
169.67:315:08
179.67:315:08
189.67:325:09
199.67:335:09
209.67:335:10
219.67:345:10
229.67:345:10
239.67:355:11
249.67:355:11
259.67:355:12
269.67:365:13
279.67:365:13
289.67:365:14
299.67:375:14
309.67:375:15
319.67:375:16

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.65 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.65 kWh/m² to a high of 5.9 kWh/m² in May across the year — December's 2.65 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.6Moderate
22.6Moderate
32.6Moderate
42.6Moderate
52.6Moderate
62.6Moderate
72.6Moderate
82.6Moderate
92.6Moderate
102.6Moderate
112.6Moderate
122.6Moderate
132.6Moderate
142.6Moderate
152.6Moderate
162.6Moderate
172.6Moderate
182.6Moderate
192.6Moderate
202.7Moderate
212.7Moderate
222.7Moderate
232.7Moderate
242.7Moderate
252.7Moderate
262.7Moderate
272.7Moderate
282.8Moderate
292.8Moderate
302.8Moderate
312.8Moderate
Planning a trip in December

Hazard calendar for Ungsang

In seasonPeak

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

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

Ungsang'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 Ungsang?

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

2.2
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 Ungsang.

What to pack for Ungsang in December

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

In December, Ungsang sees daytime highs around 9°C and nights near 1°C. Pack a warm layer. About 4 days see rain.

a warm layer

Sea temperature near Ungsang in December

The nearest coast averages about 17°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 19 km away) is warmest in August at about 26°C and coldest in February near 14°C.

It's comfortable for a long swim from Jun 17 to Nov 9 — about 4.8 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Bracing
Feb14Bracing
Mar14Bracing
Apr15Bracing
May17Cool
Jun20Refreshing
Jul23Refreshing
Aug26Warm
Sep25Warm
Oct22Refreshing
Nov20Cool
Dec17Cool

UV index in Ungsang 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 Ungsang peaks around August 17 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 23 at about 2 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateAug 17UV 9Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar5High
Apr7High
May8Very high
Jun8Very high
Jul9Very high
Aug9Very high
Sep9Very high
Oct5High
Nov4Moderate
Dec2Moderate

Air quality in Ungsang 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 Ungsang is worst in March — around 68 µg/m³ PM2.5 (unhealthy), about 1.6× the cleanest month (August, 42 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorPoorMar 2168 µg/m³Aug 1942 µg/m³
PM2.5 (µg/m³)Level
Jan52Poor
Feb58Unhealthy
Mar68Unhealthy
Apr66Unhealthy
May65Unhealthy
Jun55Poor
Jul46Poor
Aug42Poor
Sep44Poor
Oct50Poor
Nov58Unhealthy
Dec48Poor
Location & terrain

Where is Ungsang?

Ungsang sits at 35.4°N, 129.2°E, 101 m above sea level, in South Korea. The nearest listed city is Yangsan, 14 km away.

BusanMiryangChangwonGyeongju

Topography around Ungsang

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

Within 3 km, the terrain around Ungsang has significant variations in elevation — a maximum elevation change of 561 m around an average of 209 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,068 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,204 m.

The land around Ungsang is covered by trees (59%) and artificial surfaces (25%) within 3 km, trees (73%) within 16 km, and trees (42%) and water (41%) within 80 km.

3 km
561 m
16 km
1,068 m
80 km
1,204 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Yangsan 14 km · Gijang 18 km · Ulsan 20 km · Kimhae 32 km · Busan 36 km · Miryang 39 km · Changwon 48 km · Gyeongju 49 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 Ungsang (35.4061°, 129.1686°, elevation 101 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).