Goseong weather in December

In December, Goseong sees average daytime highs of 9°C and overnight lows near 1°C, with 25 mm of precipitation across 3.3 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 10°C in the first days to 7°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 42 min by month's end. Set against the rest of the year, December is Goseong's 1st-clearest and 9th-windiest month. For the whole year in context, see Goseong's year-round climate.

Daytime high
10th warmest
Overnight low
3rd coldest
Precipitation
25 mm
3.3 wet days
Daylight
9 h 42 min
7:33 AM – 5:13 PM
Cloud cover
36%
1st clearest
Wind
10 km/h
9th windiest
Solar energy
2.7 kWh/m²
Travel score
2.0
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 10°C in the first days to 7°C by the end.

A typical December day in Goseong reaches about 9°C in the afternoon and slips back to 1°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 4°C and 13°C. Set against its neighbours, December runs about 6°C cooler than November and about 2°C warmer than January.

-5°10°15°151015202531
Avg high (°C)Avg low (°C)
1114
2113
3113
4103
5103
6102
7102
892
992
1092
1191
1291
1391
1491
1581
1681
1780
1880
1980
2080
2180
2280
2380
2480
2580
268-1
277-1
287-1
297-1
307-1
317-1

How December really feels in Goseong

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 27 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
27
wind chill below the day's low

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

Goseong 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 / -2°273.60.69.90.8
Feb / 374.50.510.71.8
Mar13° / 726.90.311.73.8
Apr18° / 11°1048012.96.1
May22° / 16°1107.4013.87.0
Jun25° / 20°1579.1014.36.7
Jul28° / 24°23013.7014.15.3
Aug29° / 24°20214.3013.34.8
Sep26° / 20°1569.1012.26.8
Oct21° / 14°644.4011.17.6
Nov15° / 444.9010.25.2
Dec / 253.30.19.72.0

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 13% of December, with mostly cloudy or overcast conditions the remaining 27%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17129
27129
37228
47228
57228
67228
77228
87228
97228
107228
117327
127327
137228
147228
157327
167327
177228
187228
197327
207327
217327
227426
237426
247426
257426
267426
277426
287525
297525
307525
317525

Chance of precipitation in December

Any precipitation

Goseong gets around 25 mm of rain and snow over 3.3 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 11% and peaks near 15% 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 (%)
115
215
315
414
514
614
713
813
912
1012
1112
1211
1311
1411
1510
1610
1710
1810
1910
209
219
229
239
249
258
268
278
288
298
308
318

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 10 km/h in December.

Across December, daily wind ranges from about 10 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 48 min at the start of December to 9 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 7:22 AM to 7:40 AM, and sunset from 5:11 PM to 5:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.87:225:11
29.87:235:11
39.87:245:11
49.87:245:11
59.87:255:11
69.77:265:11
79.77:275:11
89.77:285:11
99.77:285:11
109.77:295:11
119.77:305:11
129.77:305:12
139.77:315:12
149.77:325:12
159.77:325:12
169.77:335:13
179.77:345:13
189.77:345:13
199.67:355:14
209.67:355:14
219.67:365:15
229.67:365:15
239.67:375:16
249.67:375:16
259.67:385:17
269.77:385:17
279.77:385:18
289.77:395:18
299.77:395:19
309.77:395:20
319.77:405:20

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.7 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.7 kWh/m² to a high of 5.87 kWh/m² in May across the year — December's 2.7 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.7Moderate
22.7Moderate
32.7Moderate
42.7Moderate
52.7Moderate
62.7Moderate
72.7Moderate
82.7Moderate
92.7Moderate
102.7Moderate
112.7Moderate
122.7Moderate
132.7Moderate
142.7Moderate
152.7Moderate
162.7Moderate
172.7Moderate
182.7Moderate
192.7Moderate
202.7Moderate
212.7Moderate
222.7Moderate
232.8Moderate
242.8Moderate
252.8Moderate
262.8Moderate
272.8Moderate
282.8Moderate
292.8Moderate
302.9Moderate
312.9Moderate
Planning a trip in December

Hazard calendar for Goseong

In seasonPeak

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

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

Goseong's rainy season runs April–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 Goseong?

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

2.0
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 Goseong.

What to pack for Goseong in December

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

In December, Goseong sees daytime highs around 9°C and nights near 1°C. Pack a warm layer. About 3 days see rain.

a warm layer

Sea temperature near Goseong in December

The nearest coast averages about 16°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 39 km away) is warmest in August at about 26°C and coldest in February near 13°C.

It's comfortable for a long swim from Jun 18 to Oct 29 — about 4.4 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan14Bracing
Feb13Bracing
Mar13Bracing
Apr14Bracing
May16Cool
Jun20Cool
Jul23Refreshing
Aug26Warm
Sep24Warm
Oct21Refreshing
Nov18Cool
Dec16Cool

UV index in Goseong 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 Goseong peaks around August 19 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 19UV 9Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar6High
Apr7High
May8Very high
Jun8Very high
Jul8Very high
Aug9Very high
Sep9Very high
Oct5High
Nov4Moderate
Dec2Moderate

Air quality in Goseong 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 Goseong is worst in March — around 51 µg/m³ PM2.5 (poor), about 1.8× the cleanest month (August, 29 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorMar 2051 µg/m³Aug 1029 µg/m³
PM2.5 (µg/m³)Level
Jan38Poor
Feb43Poor
Mar51Poor
Apr49Poor
May43Poor
Jun38Poor
Jul29Moderate
Aug29Moderate
Sep33Moderate
Oct36Poor
Nov40Poor
Dec35Moderate
Location & terrain

Where is Goseong?

Goseong sits at 35.0°N, 128.3°E, 14 m above sea level, in South Korea. The nearest listed city is Tongyeong, 17 km away.

NaesŏGeojeChangwonHadong

Topography around Goseong

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

Within 3 km, the terrain around Goseong has only modest variations in elevation — a maximum elevation change of 171 m around an average of 25 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 639 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,875 m.

The land around Goseong is covered by cropland (39%) and trees (31%) within 3 km, trees (55%) and water (28%) within 16 km, and water (44%) and trees (43%) within 80 km.

3 km
171 m
16 km
639 m
80 km
1,875 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Tongyeong 17 km · Kyosai 28 km · Sinhyeon 30 km · Chinju 32 km · Naesŏ 35 km · Geoje 39 km · Changwon 43 km · Hadong 53 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 Goseong (34.9763°, 128.3236°, elevation 14 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).