Gongju weather in January

In January, Gongju sees average daytime highs of 3°C and overnight lows near -5°C, with 22 mm of precipitation across 4.2 wet days and about 9.8 hours of daylight. It is the 12th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 3°C through the month. The sky is clear or mostly clear about 27% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 36 min at the start of January to 10 h 06 min by month's end. Set against the rest of the year, January is Gongju's 9th-clearest and 6th-windiest month. For the whole year in context, see Gongju's year-round climate.

Daytime high
12th warmest
Overnight low
-5°
1st coldest
Precipitation
22 mm
4.2 wet days
Daylight
9 h 48 min
7:48 AM – 5:34 PM
Cloud cover
60%
9th clearest
Wind
9 km/h
6th windiest
Solar energy
2.56 kWh/m²
Travel score
0.0
out of 10

Gongju is City in South Chungcheong Province, South Korea.

Density
77/km²
people per km²

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

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 3°C through the month.

A typical January day in Gongju reaches about 3°C in the afternoon and slips back to -5°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between -2°C and 8°C. Set against its neighbours, January runs about 2°C cooler than December and about 3°C cooler than February.

-10°-5°10°151015202531
Avg high (°C)Avg low (°C)
14-4
24-4
34-4
44-5
53-5
63-5
73-5
83-5
93-5
103-5
113-5
123-5
133-5
143-5
153-5
163-5
173-5
183-5
193-5
203-5
213-5
223-5
233-5
243-5
253-5
263-5
273-5
283-5
294-5
304-5
314-5

How January really feels in Gongju

Once humidity and wind are folded in, January 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 January is cold — wind chill drags the overnight "feels like" below the raw low.

Gongju weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -5°224.22.59.80.0
Feb / -3°304.31.610.60.6
Mar12° / 476.41.211.73.4
Apr18° / 797.30.112.96.3
May24° / 12°847.4013.97.3
Jun28° / 18°1268.7014.46.4
Jul29° / 22°26516.1014.24.5
Aug30° / 22°24215.2013.44.5
Sep26° / 17°1478.6012.26.9
Oct20° / 10°595011.17.3
Nov13° / 456.10.210.13.9
Dec / -3°244.61.99.60.4

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 20% of January, with mostly cloudy or overcast conditions the remaining 53%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25050
35050
44951
54852
64852
74753
84753
94654
104555
114555
124456
134456
144456
154555
164456
174456
184456
194555
204555
214555
224654
234753
244852
254951
264951
275050
285149
295149
305248
315248

Chance of precipitation in January

Any precipitationSnow

Gongju gets around 22 mm of rain and snow over 4.2 wet days in January, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 14% and peaks near 15% on the wettest days, and about 3 days bring snow.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
1149
2149
3139
4139
5139
6138
7128
8128
9128
10128
11138
12138
13137
14137
15147
16147
17147
18148
19158
20158
21158
22158
23158
24158
25158
26148
27148
28148
29137
30137
31137

Humidity in January

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, January 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 January

Winds average 9 km/h in January.

Across January, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 36 min at the start of January to 10 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 30 minutes over January. Sunrise moves from 7:48 AM to 7:41 AM, and sunset from 5:21 PM to 5:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.67:485:21
29.67:485:22
39.67:485:23
49.67:495:23
59.67:495:24
69.67:495:25
79.67:495:26
89.67:495:27
99.67:495:27
109.77:495:28
119.77:495:29
129.77:495:30
139.77:485:31
149.77:485:32
159.77:485:33
169.87:485:34
179.87:475:35
189.87:475:36
199.87:475:37
209.97:475:38
219.97:465:39
229.97:465:40
239.97:455:41
249.97:455:42
2510.07:445:43
2610.07:445:44
2710.07:435:45
2810.17:435:46
2910.17:425:47
3010.17:415:48
3110.17:415:49

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.56 kWh/m².

For context, solar energy here swings from a low near 2.25 kWh/m² to a high of 5.91 kWh/m² in May across the year — January's 2.56 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
12.3Moderate
22.4Moderate
32.4Moderate
42.4Moderate
52.4Moderate
62.4Moderate
72.4Moderate
82.4Moderate
92.4Moderate
102.4Moderate
112.4Moderate
122.4Moderate
132.5Moderate
142.5Moderate
152.5Moderate
162.5Moderate
172.5Moderate
182.6Moderate
192.6Moderate
202.6Moderate
212.7Moderate
222.7Moderate
232.7Moderate
242.8Moderate
252.8Moderate
262.8Moderate
272.9Moderate
282.9Moderate
293.0Moderate
303.0Moderate
313.0Moderate
Planning a trip in January

Hazard calendar for Gongju

In seasonPeak

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

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

Gongju'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 January a good time to visit Gongju?

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

0.0
Sightseeing
12th-best month of the year
0.0
Beach & pool
10th-best month of the year

January is a weaker month for outdoor sightseeing in Gongju.

What to pack for Gongju in January

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

In January, Gongju sees daytime highs around 3°C and nights near -5°C. Pack a warm layer and a heavy coat. About 4 days see rain.

a warm layera heavy coat

Sea temperature near Gongju in January

The nearest coast averages about 7°C in January — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 58 km away) is warmest in August at about 26°C and coldest in February near 5°C.

It's comfortable for a long swim from Jun 26 to Oct 10 — about 3.5 months when the water holds above 20°C.

0°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan7Bracing
Feb5Bracing
Mar6Bracing
Apr9Bracing
May14Bracing
Jun19Cool
Jul23Refreshing
Aug26Warm
Sep23Refreshing
Oct19Cool
Nov15Bracing
Dec11Bracing

UV index in Gongju in January

LowModerateHighVery highExtreme

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

Under clear skies, the midday UV index in Gongju peaks around August 14 at about 8 (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 highHighModerateAug 14UV 8Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar5Moderate
Apr6High
May7High
Jun7Very high
Jul8Very high
Aug8Very high
Sep8Very high
Oct5High
Nov3Moderate
Dec2Low

Air quality in Gongju in January

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where January falls, not just the annual average.

Air quality in Gongju 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 Gongju?

Gongju sits at 36.5°N, 127.1°E, 23 m above sea level, in South Korea. The nearest listed city is Sejong, 21 km away.

YesanYŏnmuAsanCheongju-si

Topography around Gongju

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

Within 3 km, the terrain around Gongju has significant variations in elevation — a maximum elevation change of 303 m around an average of 66 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 820 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,213 m.

The land around Gongju is covered by trees (53%) and artificial surfaces (22%) within 3 km, trees (68%) within 16 km, and trees (55%) and cropland (24%) within 80 km.

3 km
303 m
16 km
820 m
80 km
1,213 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Sejong 21 km · Daejeon 26 km · Buyeo 28 km · Nonsan 28 km · Yesan 35 km · Yŏnmu 36 km · Asan 38 km · Cheongju-si 38 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 Gongju (36.4556°, 127.1247°, elevation 23 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).