Gapyeong weather in December

In December, Gapyeong sees average daytime highs of 3°C and overnight lows near -5°C, with 26 mm of precipitation across 5.1 wet days and about 9.4 hours of daylight. It is the 11th-warmest and 11th-wettest month of the year here.

Highs ease over the month, from about 5°C in the first days to 1°C by the end. The sky is clear or mostly clear about 51% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 36 min at the start of December to 9 h 24 min by month's end. Set against the rest of the year, December is Gapyeong's 1st-clearest and 5th-windiest month. For the whole year in context, see Gapyeong's year-round climate.

Daytime high
11th warmest
Overnight low
-5°
3rd coldest
Precipitation
26 mm
5.1 wet days
Daylight
9 h 24 min
7:44 AM – 5:08 PM
Cloud cover
42%
1st clearest
Wind
8 km/h
5th windiest
Solar energy
2.34 kWh/m²
Travel score
0.0
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 5°C in the first days to 1°C by the end.

A typical December day in Gapyeong reaches about 3°C in the afternoon and slips back to -5°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between -3°C and 8°C. Set against its neighbours, December runs about 7°C cooler than November and about 2°C warmer than January.

-10°10°151015202531
Avg high (°C)Avg low (°C)
16-3
25-3
35-3
45-3
55-4
64-4
74-4
84-4
94-4
104-5
113-5
123-5
133-5
143-5
153-5
163-6
173-6
183-6
193-6
202-6
212-6
222-6
232-6
242-6
252-6
262-7
272-7
282-7
292-7
301-7
311-7

How December really feels in Gapyeong

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
10 feel bitter (≤ -10°C)

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

Gapyeong 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 / -8°223.83.39.70.0
Feb / -5°284.52.910.50.2
Mar10° / -0°446.62.511.72.5
Apr17° / 808.10.212.95.6
May22° / 11°1078.70146.9
Jun26° / 17°13210.1014.66.5
Jul28° / 21°33918.1014.44.9
Aug28° / 21°28317013.55.0
Sep24° / 15°1338.6012.36.9
Oct19° / 565.70116.7
Nov10° / 5070.8102.7
Dec / -5°265.139.40.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% of the time in December, the clearest month of the year.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 35%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26337
36337
46436
56436
66436
76436
86436
96436
106436
116436
126535
136436
146535
156634
166634
176634
186634
196634
206733
216733
226733
236733
246733
256733
266733
276733
286733
296733
306733
316634

Chance of precipitation in December

Any precipitationSnow

Gapyeong gets around 26 mm of rain and snow over 5.1 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 17% and peaks near 22% on the wettest days, and about 3 days bring snow. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
1227
2217
3218
4218
5218
6209
7209
8199
9199
10199
11189
12189
13179
14179
15169
16169
17159
18159
19149
20149
21149
221410
231410
241410
251411
261411
271411
281412
291412
301412
311412

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 8 km/h in December.

Across December, 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 December

DaylightNight

Daylight runs from about 9 h 36 min at the start of December to 9 h 24 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 12 minutes over December. Sunrise moves from 7:33 AM to 7:51 AM, and sunset from 5:07 PM to 5:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.67:335:07
29.67:335:07
39.57:345:07
49.57:355:07
59.57:365:06
69.57:375:06
79.57:385:06
89.57:395:06
99.57:395:07
109.47:405:07
119.47:415:07
129.47:425:07
139.47:425:07
149.47:435:07
159.47:445:08
169.47:445:08
179.47:455:08
189.47:465:09
199.47:465:09
209.47:475:09
219.47:475:10
229.47:485:10
239.47:485:11
249.47:495:11
259.47:495:12
269.47:495:12
279.47:505:13
289.47:505:14
299.47:505:14
309.47:505:15
319.47:515:16

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 5.7 kWh/m² in May across the year — December's 2.34 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.3Moderate
22.3Moderate
32.3Moderate
42.3Moderate
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 Gapyeong

In seasonPeak

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

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

Gapyeong'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 December a good time to visit Gapyeong?

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

0.0
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 Gapyeong.

What to pack for Gapyeong in December

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

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

a warm layera heavy coat

UV index in Gapyeong 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 Gapyeong peaks around August 17 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 22UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May6High
Jun7Very high
Jul7Very high
Aug9Very high
Sep8Very high
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Gapyeong 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 Gapyeong is worst in March — around 123 µg/m³ PM2.5 (unhealthy), and holds fairly steady the rest of the year.

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

0306090120150JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyMar 16121 µg/m³Aug 978 µg/m³
PM2.5 (µg/m³)Level
Jan106Unhealthy
Feb108Unhealthy
Mar123Unhealthy
Apr104Unhealthy
May96Unhealthy
Jun91Unhealthy
Jul79Unhealthy
Aug78Unhealthy
Sep97Unhealthy
Oct115Unhealthy
Nov118Unhealthy
Dec100Unhealthy
Location & terrain

Where is Gapyeong?

Gapyeong sits at 37.8°N, 127.5°E, 67 m above sea level, in South Korea. The nearest listed city is Chuncheon, 20 km away.

NamyangjuHwacheonHongch’ŏnWabuYangp'yŏngYangju

Topography around Gapyeong

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

Within 3 km, the terrain around Gapyeong has significant variations in elevation — a maximum elevation change of 365 m around an average of 125 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,213 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,466 m.

The land around Gapyeong is covered by trees (61%) within 3 km, trees (87%) within 16 km, and trees (73%) within 80 km.

3 km
365 m
16 km
1,213 m
80 km
1,466 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Chuncheon 20 km · Hwado 27 km · Namyangju 34 km · Hwacheon 35 km · Hongch’ŏn 36 km · Wabu 37 km · Yangp'yŏng 38 km · Yangju 39 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 Gapyeong (37.831°, 127.5106°, elevation 67 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). 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).