Jenzan weather in December

In December, Jenzan sees average daytime highs of 6°C and overnight lows near -3°C, with 21 mm of precipitation across 3.9 wet days and about 9.6 hours of daylight. It is the 11th-warmest and 12th-wettest month of the year here.

Highs ease over the month, from about 8°C in the first days to 5°C by the end. The sky is clear or mostly clear about 50% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 42 min at the start of December to 9 h 36 min by month's end. Set against the rest of the year, December is Jenzan's 1st-clearest and 3rd-windiest month. For the whole year in context, see Jenzan's year-round climate.

Daytime high
11th warmest
Overnight low
-3°
3rd coldest
Precipitation
21 mm
3.9 wet days
Daylight
9 h 30 min
7:37 AM – 5:09 PM
Cloud cover
43%
1st clearest
Wind
10 km/h
3rd windiest
Solar energy
2.47 kWh/m²
Travel score
0.7
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 8°C in the first days to 5°C by the end.

A typical December day in Jenzan reaches about 6°C in the afternoon and slips back to -3°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 11°C. Set against its neighbours, December runs about 7°C cooler than November and about 2°C warmer than January.

-10°-5°10°15°151015202531
Avg high (°C)Avg low (°C)
190
29-1
38-1
48-1
58-1
68-1
77-1
87-2
97-2
107-2
117-2
126-2
136-2
146-2
156-3
166-3
176-3
186-3
196-3
206-3
216-3
225-3
235-3
245-3
255-3
265-4
275-4
285-4
295-4
305-4
315-4

How December really feels in Jenzan

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

Jenzan weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 12th-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 December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 50% of the time in December, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 15% of December, with mostly cloudy or overcast conditions the remaining 35%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26436
36535
46436
56436
66436
76436
86436
96436
106436
116436
126436
136535
146535
156535
166535
176535
186535
196634
206634
216634
226535
236634
246733
256733
266733
276832
286733
296832
306832
316931

Chance of precipitation in December

Any precipitationSnow

Jenzan gets around 21 mm of rain and snow over 3.9 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 12% and peaks near 17% on the wettest days, and about 1 day brings snow. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
1173
2173
3173
4163
5163
6163
7153
8153
9143
10143
11132
12132
13122
14122
15122
16112
17112
18112
19112
20102
21102
22102
23103
24103
25103
26103
27103
28103
29103
30104
31104

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 9 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
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 42 min at the start of December to 9 h 36 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 7:25 AM to 7:43 AM, and sunset from 5:08 PM to 5:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.77:255:08
29.77:265:08
39.77:275:08
49.77:285:08
59.77:295:08
69.67:295:08
79.67:305:08
89.67:315:08
99.67:325:08
109.67:335:08
119.67:335:08
129.67:345:08
139.67:355:09
149.67:355:09
159.67:365:09
169.57:375:09
179.57:375:10
189.57:385:10
199.57:385:10
209.57:395:11
219.57:395:11
229.57:405:12
239.57:405:12
249.57:415:13
259.57:415:13
269.57:425:14
279.57:425:14
289.57:425:15
299.67:435:16
309.67:435:16
319.67:435:17

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.47 kWh/m² — the year's lowest.

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 — December's 2.47 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.5Moderate
22.5Moderate
32.5Moderate
42.5Moderate
52.5Moderate
62.5Moderate
72.4Moderate
82.4Moderate
92.4Moderate
102.4Moderate
112.4Moderate
122.4Moderate
132.5Moderate
142.5Moderate
152.5Moderate
162.5Moderate
172.5Moderate
182.5Moderate
192.5Moderate
202.5Moderate
212.5Moderate
222.5Moderate
232.5Moderate
242.5Moderate
252.5Moderate
262.5Moderate
272.5Moderate
282.6Moderate
292.6Moderate
302.6Moderate
312.6Moderate
Planning a trip in December

Hazard calendar for Jenzan

In seasonPeak

None of Jenzan's seasonal hazards are active in December. 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 December a good time to visit Jenzan?

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

0.7
Sightseeing
11th-best month of the year
0.0
Beach & pool
10th-best month of the year

December is a weaker month for outdoor sightseeing in Jenzan.

What to pack for Jenzan in December

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

In December, Jenzan sees daytime highs around 6°C and nights near -3°C. Pack a warm layer. Worth having: a heavy coat. About 4 days see rain.

a warm layera heavy coat

UV index in Jenzan 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 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 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 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
December 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).