Yanggu weather in January

In January, Yanggu sees average daytime highs of 0°C and overnight lows near -10°C, with 23 mm of precipitation across 4.5 wet days and about 9.7 hours of daylight. It is the 12th-warmest and 12th-wettest month of the year here.

Day-to-day highs hold fairly steady near 0°C through the month. The sky is clear or mostly clear about 49% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 24 min at the start of January to 10 hours by month's end. Set against the rest of the year, January is Yanggu's 3rd-clearest and 4th-windiest month. For the whole year in context, see Yanggu's year-round climate.

Daytime high
12th warmest
Overnight low
-10°
1st coldest
Precipitation
23 mm
4.5 wet days
Daylight
9 h 36 min
7:49 AM – 5:26 PM
Cloud cover
46%
3rd clearest
Wind
8 km/h
4th windiest
Solar energy
2.73 kWh/m²
Travel score
0.0
out of 10

Yanggu is human settlement in South Korea.

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 0°C through the month.

A typical January day in Yanggu reaches about 0°C in the afternoon and slips back to -10°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between -6°C and 5°C. Set against its neighbours, January runs about 2°C cooler than December and about 3°C cooler than February.

-20°-10°10°151015202531
Avg high (°C)Avg low (°C)
10-9
20-9
30-9
40-9
50-9
60-9
70-9
80-9
90-9
100-9
110-9
120-9
130-10
140-10
150-10
160-10
170-10
180-10
190-10
200-10
210-10
220-10
230-10
240-10
250-10
260-10
270-10
280-10
290-10
300-10
311-10

How January really feels in Yanggu

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
31 feel bitter (≤ -10°C)

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

Yanggu 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 / -10°234.54.39.70.0
Feb / -7°294.8410.50.0
Mar / -1°457.53.711.71.8
Apr15° / 788.40.8135.0
May21° / 10°978.60146.6
Jun24° / 15°10910.1014.66.7
Jul26° / 19°28517.6014.45.3
Aug27° / 20°23015.5013.55.6
Sep23° / 15°1218.4012.36.9
Oct17° / 525.80.1116.2
Nov / 477.41.29.92.1
Dec / -6°285.84.29.40.0

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 13% of January, with mostly cloudy or overcast conditions the remaining 38%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26436
36337
46337
56337
66337
76238
86139
96238
106139
116040
126040
136040
146040
156040
166040
176040
186139
196139
206139
216238
226139
236139
246238
256238
266337
276337
286337
296337
306337
316337

Chance of precipitation in January

Any precipitationSnow

Yanggu gets around 23 mm of rain and snow over 4.5 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 15% and peaks near 16% on the wettest days, and about 4 days bring snow.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
11615
21615
31515
41514
51514
61414
71414
81414
91414
101414
111514
121514
131514
141514
151515
161515
171515
181515
191515
201615
211515
221515
231515
241514
251414
261413
271413
281312
291312
301312
311312

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 8 km/h in January.

Across January, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 24 min at the start of January to 10 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 36 minutes over January. Sunrise moves from 7:49 AM to 7:41 AM, and sunset from 5:13 PM to 5:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.47:495:13
29.47:505:14
39.47:505:15
49.47:505:15
59.47:505:16
69.57:505:17
79.57:505:18
89.57:505:19
99.57:505:20
109.57:505:20
119.57:505:21
129.57:495:22
139.67:495:23
149.67:495:24
159.67:495:25
169.67:495:26
179.67:485:27
189.77:485:28
199.77:485:29
209.77:475:30
219.77:475:31
229.87:465:32
239.87:465:33
249.87:455:34
259.87:455:35
269.97:445:37
279.97:445:38
289.97:435:39
2910.07:425:40
3010.07:425:41
3110.07:415:42

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.73 kWh/m².

For context, solar energy here swings from a low near 2.35 kWh/m² to a high of 5.68 kWh/m² in May across the year — January's 2.73 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
12.5Moderate
22.5Moderate
32.5Moderate
42.5Moderate
52.5Moderate
62.5Moderate
72.6Moderate
82.6Moderate
92.6Moderate
102.6Moderate
112.6Moderate
122.6Moderate
132.6Moderate
142.6Moderate
152.7Moderate
162.7Moderate
172.7Moderate
182.7Moderate
192.8Moderate
202.8Moderate
212.8Moderate
222.9Moderate
232.9Moderate
242.9Moderate
253.0Moderate
263.0Moderate
273.0Moderate
283.0Moderate
293.1Moderate
303.1Moderate
313.1Moderate
Planning a trip in January

Hazard calendar for Yanggu

In seasonPeak

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

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

Yanggu's rainy season runs July–August, 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 Yanggu?

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

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

January is a weaker month for outdoor sightseeing in Yanggu.

What to pack for Yanggu in January

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

In January, Yanggu sees daytime highs around 0°C and nights near -10°C. Pack a warm layer and a heavy coat. About 5 days see rain.

a warm layera heavy coat

Sea temperature near Yanggu in January

The nearest coast averages about 10°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 56 km away) is warmest in August at about 24°C and coldest in February near 8°C.

It's comfortable for a long swim from Jul 1 to Oct 5 — about 3.2 months when the water holds above 20°C.

5°10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan10Bracing
Feb8Bracing
Mar9Bracing
Apr11Bracing
May14Bracing
Jun18Cool
Jul22Refreshing
Aug24Warm
Sep22Refreshing
Oct19Cool
Nov15Cool
Dec12Bracing

UV index in Yanggu 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 Yanggu peaks around August 17 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highModerateAug 17UV 9Dec 20UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar4Moderate
Apr6High
May6High
Jun7Very high
Jul8Very high
Aug9Very high
Sep8Very high
Oct5High
Nov3Moderate
Dec2Low

Air quality in Yanggu 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 Yanggu is worst in March — around 46 µg/m³ PM2.5 (poor), about 2.4× the cleanest month (September, 19 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateMar 2046 µg/m³Sep 1120 µg/m³
PM2.5 (µg/m³)Level
Jan35Poor
Feb38Poor
Mar46Poor
Apr43Poor
May36Poor
Jun29Moderate
Jul23Moderate
Aug21Moderate
Sep19Moderate
Oct26Moderate
Nov31Moderate
Dec30Moderate
Location & terrain

Where is Yanggu?

Yanggu sits at 38.1°N, 128.0°E, 192 m above sea level, in South Korea. The nearest listed city is Hwacheon, 25 km away.

ChuncheonHongch’ŏnKosongGapyeongSokchoCheorwonHoeyang

Topography around Yanggu

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

Within 3 km, the terrain around Yanggu has significant variations in elevation — a maximum elevation change of 516 m around an average of 287 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,037 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,671 m.

The land around Yanggu is covered by trees (61%) within 3 km, trees (86%) within 16 km, and trees (74%) within 80 km.

3 km
516 m
16 km
1,037 m
80 km
1,671 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Hwacheon 25 km · Chuncheon 34 km · Hongch’ŏn 47 km · Kosong 52 km · Gapyeong 52 km · Sokcho 54 km · Cheorwon 68 km · Hoeyang 75 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 Yanggu (38.1058°, 127.9894°, elevation 192 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).