Changwon weather in January

In January, Changwon sees average daytime highs of 7°C and overnight lows near -2°C, with 28 mm of precipitation across 3.9 wet days and about 9.9 hours of daylight. It is the 12th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 7°C through the month. The sky is clear or mostly clear about 54% of the time in January, and the air most often feels dry.

Daylight stretches from about 9 h 42 min at the start of January to 10 h 12 min by month's end. Set against the rest of the year, January is Changwon's 3rd-clearest and 1st-windiest month. For the whole year in context, see Changwon's year-round climate.

Daytime high
12th warmest
Overnight low
-2°
1st coldest
Precipitation
28 mm
3.9 wet days
Daylight
9 h 54 min
7:38 AM – 5:31 PM
Cloud cover
42%
3rd clearest
Wind
12 km/h
1st windiest
Solar energy
2.98 kWh/m²
Travel score
1.1
out of 10

Changwon is specific city in South Gyeongsang, South Korea.

Density
1,393/km²
people per km²
Founded
1408

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 7°C through the month.

A typical January day in Changwon reaches about 7°C in the afternoon and slips back to -2°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 2°C and 11°C. Set against its neighbours, January runs about 2°C cooler than December and about 2°C cooler than February.

-10°-5°10°15°151015202531
Avg high (°C)Avg low (°C)
17-2
27-2
37-2
47-2
57-2
67-2
77-2
87-2
97-2
107-2
117-2
127-2
137-2
147-2
157-2
167-2
177-2
187-2
197-2
207-2
217-2
227-2
237-2
247-2
257-2
267-2
277-2
287-2
297-2
307-2
317-2

How January really feels in Changwon

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.

Changwon weather by month

How January compares with the rest of the year at a glance. January is the 12th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -2°283.90.69.91.1
Feb / -1°384.40.510.72.2
Mar14° / 757.20.511.74.3
Apr19° / 1077.9012.96.4
May23° / 13°1148.1013.87.1
Jun26° / 18°1619.4014.36.5
Jul28° / 22°24614.8014.15.0
Aug29° / 23°22014.6013.34.7
Sep26° / 18°1629.6012.26.7
Oct22° / 12°684.6011.17.6
Nov15° / 474.90.110.15.4
Dec / -0°263.50.39.72.2

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 54% 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 33%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17426
27327
37327
47228
57228
67129
77129
87030
96832
106733
116733
126634
136535
146535
156436
166436
176436
186436
196436
206436
216436
226535
236436
246535
256535
266634
276733
286733
296733
306733
316733

Chance of precipitation in January

Any precipitationSnow

Changwon gets around 28 mm of rain and snow over 3.9 wet days in January. 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 14% on the wettest days, and about 1 day brings snow.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
192
292
3102
4102
5102
6102
7112
8112
9112
10122
11122
12122
13132
14132
15132
16142
17142
18142
19142
20142
21142
22142
23142
24142
25142
26142
27132
28132
29132
30132
31122

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 12 km/h in January, the windiest month of the year.

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

051015151015202531
Wind speed (km/h)Feels
112calm
212calm
312calm
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 42 min at the start of January to 10 h 12 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 7:39 AM to 7:32 AM, and sunset from 5:18 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.77:395:18
29.77:395:19
39.77:395:20
49.77:395:21
59.77:395:21
69.77:395:22
79.77:395:23
89.77:395:24
99.87:395:24
109.87:395:25
119.87:395:26
129.87:395:27
139.87:395:28
149.87:395:29
159.97:395:30
169.97:385:31
179.97:385:32
189.97:385:32
199.97:385:33
209.97:375:34
2110.07:375:35
2210.07:375:36
2310.07:365:37
2410.07:365:38
2510.17:355:39
2610.17:355:40
2710.17:345:41
2810.17:345:42
2910.27:335:43
3010.27:335:44
3110.27:325:45

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.98 kWh/m².

For context, solar energy here swings from a low near 2.68 kWh/m² to a high of 5.85 kWh/m² in May across the year — January's 2.98 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
12.8Moderate
22.8Moderate
32.8Moderate
42.9Moderate
52.9Moderate
62.9Moderate
72.9Moderate
82.9Moderate
92.9Moderate
102.9Moderate
112.9Moderate
122.9Moderate
132.9Moderate
142.9Moderate
152.9Moderate
162.9Moderate
172.9Moderate
183.0Moderate
193.0Moderate
203.0Moderate
213.0Moderate
223.1Moderate
233.1Moderate
243.1Moderate
253.2Moderate
263.2Moderate
273.2Moderate
283.3Moderate
293.3Moderate
303.4Moderate
313.4Moderate
Planning a trip in January

Hazard calendar for Changwon

In seasonPeak

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

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

Changwon'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 January a good time to visit Changwon?

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

1.1
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 Changwon.

What to pack for Changwon in January

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

In January, Changwon sees daytime highs around 7°C and nights near -2°C. Pack a warm layer. Worth having: a heavy coat. About 4 days see rain.

a warm layera heavy coat

Sea temperature near Changwon in January

The nearest coast averages about 15°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 42 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 7 — about 4.7 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
Nov19Cool
Dec17Cool

UV index in Changwon 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 Changwon peaks around August 18 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 18UV 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 Changwon 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 Changwon 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 Changwon?

Changwon sits at 35.2°N, 128.7°E, 27 m above sea level, in South Korea. The nearest listed city is Naesŏ, 15 km away.

YangsanBusanChangnyeongSinhyeonKyosai

Topography around Changwon

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

Within 3 km, the terrain around Changwon has significant variations in elevation — a maximum elevation change of 505 m around an average of 58 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 789 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,204 m.

The land around Changwon is covered by artificial surfaces (60%) and trees (35%) within 3 km, trees (54%) and artificial surfaces (20%) within 16 km, and trees (47%) and water (37%) within 80 km.

3 km
505 m
16 km
789 m
80 km
1,204 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Naesŏ 15 km · Kimhae 18 km · Miryang 30 km · Yangsan 34 km · Busan 35 km · Changnyeong 39 km · Sinhyeon 39 km · Kyosai 43 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 Changwon (35.2281°, 128.6811°, elevation 27 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).