Jenzan weather in January

In January, Jenzan sees average daytime highs of 4°C and overnight lows near -4°C, with 22 mm of precipitation across 3.9 wet days and about 9.8 hours of daylight. It is the 12th-warmest and 11th-wettest month of the year here.

Day-to-day highs hold fairly steady near 4°C through the month. The sky is clear or mostly clear about 45% 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 12 min by month's end. Set against the rest of the year, January is Jenzan's 4th-clearest and 1st-windiest month. For the whole year in context, see Jenzan's year-round climate.

Daytime high
12th warmest
Overnight low
-4°
1st coldest
Precipitation
22 mm
3.9 wet days
Daylight
9 h 48 min
7:43 AM – 5:30 PM
Cloud cover
48%
4th clearest
Wind
11 km/h
1st windiest
Solar energy
2.81 kWh/m²
Travel score
0.0
out of 10

Temperature in January

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 4°C through the month.

A typical January day in Jenzan reaches about 4°C in the afternoon and slips back to -4°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between -1°C and 9°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)
15-4
24-4
34-4
44-4
54-4
64-4
74-4
84-4
94-4
104-4
114-4
124-4
134-4
144-4
154-4
164-4
174-4
184-4
194-4
204-4
214-4
224-4
234-4
244-4
254-4
264-4
274-4
284-4
295-4
305-4
315-4

How January really feels in Jenzan

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.

Jenzan 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 / -4°223.91.99.80.0
Feb / -3°283.91.310.61.0
Mar13° / 526.81.211.73.8
Apr19° / 7670.112.96.6
May24° / 13°877.7013.97.2
Jun28° / 18°1259014.46.1
Jul29° / 22°22514.4014.24.6
Aug30° / 22°21114.1013.44.5
Sep26° / 17°1498.8012.26.8
Oct20° / 10°554.6011.17.4
Nov13° / 365.20.210.14.3
Dec / -3°213.90.99.60.7

Cloud cover in January

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% of the time in January.

Beyond those clear spells, partly cloudy skies cover about 18% of January, with mostly cloudy or overcast conditions the remaining 37%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16832
26832
36832
46733
56733
66733
76634
86535
96436
106337
116238
126139
136139
146040
155941
165941
175941
185941
196040
206040
216040
226139
236139
246238
256238
266436
276436
286535
296535
306535
316634

Chance of precipitation in January

Any precipitationSnow

Jenzan gets around 22 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 15% on the wettest days, and about 2 days bring snow.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
1104
2104
3104
494
594
6104
7104
8104
9115
10115
11115
12126
13126
14136
15137
16147
17147
18158
19158
20158
21158
22158
23158
24158
25158
26148
27147
28137
29137
30126
31126

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

Across January, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in January

DaylightNight

Daylight runs from about 9 h 36 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 36 minutes over January. Sunrise moves from 7:43 AM to 7:36 AM, and sunset from 5:17 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.67:435:17
29.67:435:18
39.67:435:19
49.67:435:19
59.67:435:20
69.67:435:21
79.67:445:22
89.77:445:23
99.77:435:23
109.77:435:24
119.77:435:25
129.77:435:26
139.77:435:27
149.77:435:28
159.87:435:29
169.87:435:30
179.87:425:31
189.87:425:32
199.87:425:33
209.97:415:34
219.97:415:35
229.97:415:36
239.97:405:37
2410.07:405:38
2510.07:395:39
2610.07:395:40
2710.07:385:41
2810.17:375:42
2910.17:375:43
3010.17:365:44
3110.27:365:45

Solar energy in January

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in January, about 2.81 kWh/m².

For context, solar energy here swings from a low near 2.47 kWh/m² to a high of 5.86 kWh/m² in May across the year — January's 2.81 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
12.6Moderate
22.6Moderate
32.6Moderate
42.6Moderate
52.6Moderate
62.6Moderate
72.7Moderate
82.7Moderate
92.7Moderate
102.7Moderate
112.7Moderate
122.7Moderate
132.7Moderate
142.7Moderate
152.7Moderate
162.8Moderate
172.8Moderate
182.8Moderate
192.8Moderate
202.9Moderate
212.9Moderate
222.9Moderate
233.0Moderate
243.0Moderate
253.0Moderate
263.1Moderate
273.1Moderate
283.1Moderate
293.2Moderate
303.2Moderate
313.2Moderate
Planning a trip in January

Hazard calendar for Jenzan

In seasonPeak

None of Jenzan's seasonal hazards are active in January. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Jenzan's rainy season runs June–September, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is January a good time to visit Jenzan?

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 Jenzan.

What to pack for Jenzan in January

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

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

a warm layera heavy coat

UV index in Jenzan 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 Jenzan peaks around August 15 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 15UV 9Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun8Very high
Jul8Very high
Aug9Very high
Sep8Very high
Oct5High
Nov3Moderate
Dec2Low

Air quality in Jenzan 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 Jenzan is worst in March — around 63 µg/m³ PM2.5 (unhealthy), about 1.8× the cleanest month (August, 35 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorModeratePoorMar 1762 µg/m³Aug 935 µg/m³
PM2.5 (µg/m³)Level
Jan49Poor
Feb54Poor
Mar63Unhealthy
Apr55Unhealthy
May48Poor
Jun44Poor
Jul35Moderate
Aug35Moderate
Sep41Poor
Oct48Poor
Nov53Poor
Dec46Poor
Location & terrain

Where is Jenzan?

Jenzan sits at 36.2°N, 128.3°E, 48 m above sea level, in South Korea. The nearest listed city is Gumi, 15 km away.

MungyeongYeongdongYecheon

Topography around Jenzan

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

Within 3 km, the terrain around Jenzan has significant variations in elevation — a maximum elevation change of 456 m around an average of 98 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 873 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,578 m.

The land around Jenzan is covered by trees (45%) and cropland (34%) within 3 km, trees (60%) and cropland (24%) within 16 km, and trees (79%) within 80 km.

3 km
456 m
16 km
873 m
80 km
1,578 m
treesgrasslandcroplandartificial surfacesbare terrainwater
January weather nearby: Gumi 15 km · Gimcheon 21 km · Sangju 23 km · Kunwi 25 km · Waegwan 29 km · Mungyeong 40 km · Yeongdong 47 km · Yecheon 48 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 Jenzan (36.2408°, 128.2975°, elevation 48 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. 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).