Okcheon weather in December

In December, Okcheon sees average daytime highs of 6°C and overnight lows near -3°C, with 25 mm of precipitation across 5 wet days and about 9.6 hours of daylight. It is the 11th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 8°C in the first days to 4°C by the end. The sky is clear or mostly clear about 38% 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 Okcheon's 3rd-clearest and 7th-windiest month. For the whole year in context, see Okcheon's year-round climate.

Daytime high
11th warmest
Overnight low
-3°
3rd coldest
Precipitation
25 mm
5 wet days
Daylight
9 h 30 min
7:40 AM – 5:12 PM
Cloud cover
51%
3rd clearest
Wind
9 km/h
7th windiest
Solar energy
2.34 kWh/m²
Travel score
0.4
out of 10

Okcheon is human settlement in South Korea.

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

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 4°C by the end.

A typical December day in Okcheon reaches about 6°C in the afternoon and slips back to -3°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between -0°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)
180
28-1
38-1
48-1
57-1
67-1
77-2
87-2
96-2
106-2
116-2
126-2
136-2
146-3
155-3
165-3
175-3
185-3
195-3
205-3
215-3
225-3
235-4
245-4
255-4
264-4
274-4
284-4
294-4
304-4
314-4

How December really feels in Okcheon

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.

Okcheon weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -5°244.82.89.80.0
Feb / -3°324.71.810.60.7
Mar12° / 537.41.311.73.4
Apr19° / 787.70.212.96.3
May24° / 13°867.8013.97.2
Jun27° / 18°1238.9014.46.4
Jul29° / 22°23015.7014.24.7
Aug30° / 22°19715013.44.6
Sep26° / 17°1388.4012.26.9
Oct20° / 10°565.1011.17.3
Nov13° / 416.20.310.13.9
Dec / -3°2551.69.60.4

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 20% of December, with mostly cloudy or overcast conditions the remaining 42%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15941
25941
35842
45842
55743
65743
75644
85644
95644
105644
115644
125644
135644
145644
155743
165743
175743
185743
195842
205842
215842
225941
235941
245941
255941
266040
276040
285941
295941
305941
315941

Chance of precipitation in December

Any precipitationSnow

Okcheon gets around 25 mm of rain and snow over 5 wet days in December. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 16% and peaks near 20% on the wettest days, and about 2 days bring snow. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
1204
2204
3204
4204
5204
6194
7194
8194
9184
10184
11174
12174
13164
14164
15154
16154
17144
18144
19144
20144
21135
22145
23146
24146
25147
26147
27147
28148
29148
30148
31148

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 9 km/h in December.

Across December, daily wind ranges from about 8 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
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

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 7:28 AM to 7:46 AM, and sunset from 5:11 PM to 5:20 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.77:285:11
29.77:295:11
39.77:305:10
49.77:315:10
59.67:325:10
69.67:335:10
79.67:335:10
89.67:345:10
99.67:355:11
109.67:365:11
119.67:365:11
129.67:375:11
139.67:385:11
149.67:385:11
159.57:395:12
169.57:405:12
179.57:405:12
189.57:415:13
199.57:415:13
209.57:425:14
219.57:435:14
229.57:435:14
239.57:435:15
249.57:445:15
259.57:445:16
269.57:455:16
279.57:455:17
289.57:455:18
299.57:465:18
309.67:465:19
319.67:465:20

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.34 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.34 kWh/m² to a high of 5.88 kWh/m² in May across the year — December's 2.34 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.4Moderate
22.4Moderate
32.4Moderate
42.4Moderate
52.3Moderate
62.3Moderate
72.3Moderate
82.3Moderate
92.3Moderate
102.3Moderate
112.3Moderate
122.3Moderate
132.3Moderate
142.3Moderate
152.3Moderate
162.3Moderate
172.3Moderate
182.3Moderate
192.3Moderate
202.4Moderate
212.4Moderate
222.4Moderate
232.4Moderate
242.4Moderate
252.4Moderate
262.4Moderate
272.4Moderate
282.4Moderate
292.4Moderate
302.4Moderate
312.5Moderate
Planning a trip in December

Hazard calendar for Okcheon

In seasonPeak

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

Okcheon'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 Okcheon?

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

0.4
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 Okcheon.

What to pack for Okcheon in December

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

In December, Okcheon sees daytime highs around 6°C and nights near -3°C. Pack a warm layer. Worth having: a heavy coat. About 5 days see rain.

a warm layera heavy coat

UV index in Okcheon 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 Okcheon 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
May7Very high
Jun7Very high
Jul8Very high
Aug9Very high
Sep8Very high
Oct5High
Nov3Moderate
Dec2Low

Air quality in Okcheon 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 Okcheon is worst in March — around 69 µg/m³ PM2.5 (unhealthy), about 1.8× the cleanest month (July, 39 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyMar 1668 µg/m³Jul 2239 µg/m³
PM2.5 (µg/m³)Level
Jan57Unhealthy
Feb61Unhealthy
Mar69Unhealthy
Apr59Unhealthy
May52Poor
Jun49Poor
Jul39Poor
Aug40Poor
Sep51Poor
Oct58Unhealthy
Nov61Unhealthy
Dec54Poor
Location & terrain

Where is Okcheon?

Okcheon sits at 36.3°N, 127.6°E, 97 m above sea level, in South Korea. The nearest listed city is Daejeon, 17 km away.

Cheongju-siSejongGongjuNonsanYŏnmu

Topography around Okcheon

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

Within 3 km, the terrain around Okcheon has significant variations in elevation — a maximum elevation change of 348 m around an average of 141 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 860 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,594 m.

The land around Okcheon is covered by trees (51%) and artificial surfaces (23%) within 3 km, trees (74%) within 16 km, and trees (72%) within 80 km.

3 km
348 m
16 km
860 m
80 km
1,594 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Daejeon 17 km · Kinzan 23 km · Yeongdong 23 km · Cheongju-si 38 km · Sejong 41 km · Gongju 43 km · Nonsan 45 km · Yŏnmu 46 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 Okcheon (36.3012°, 127.568°, elevation 97 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).