Changyŏn weather in December

In December, Changyŏn sees average daytime highs of 4°C and overnight lows near -0°C, with 31 mm of precipitation across 7.8 wet days and about 9.4 hours of daylight. It is the 10th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 6°C in the first days to 2°C by the end. The sky is clear or mostly clear about 25% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 30 min at the start of December to 9 h 24 min by month's end. Set against the rest of the year, December is Changyŏn's 11th-clearest and 1st-windiest month. For the whole year in context, see Changyŏn's year-round climate.

Daytime high
10th warmest
Overnight low
-0°
3rd coldest
Precipitation
31 mm
7.8 wet days
Daylight
9 h 24 min
7:55 AM – 5:16 PM
Cloud cover
65%
11th clearest
Wind
21 km/h
1st windiest
Solar energy
1.99 kWh/m²
Travel score
0.1
out of 10

Changyŏn is human settlement in North 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 6°C in the first days to 2°C by the end.

A typical December day in Changyŏn reaches about 4°C in the afternoon and slips back to -0°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between -1°C and 8°C. Set against its neighbours, December runs about 6°C cooler than November and about 3°C warmer than January.

-10°-5°10°15°151015202531
Avg high (°C)Avg low (°C)
162
262
362
461
561
651
751
851
950
1050
1140
1240
1340
1440
1540
1640
174-1
184-1
193-1
203-1
213-1
223-1
233-1
243-1
253-1
263-2
273-2
282-2
292-2
302-2
312-2

How December really feels in Changyŏn

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.

Changyŏn weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -3°184.84.29.60.0
Feb / -2°203.82.310.50.0
Mar / 264.5111.70.6
Apr11° / 506.10.1133.0
May16° / 11°897.20145.3
Jun21° / 17°877.7014.66.7
Jul24° / 21°23413014.46.3
Aug25° / 22°19411.8013.56.5
Sep23° / 18°876.2012.37.4
Oct17° / 13°415.70116.3
Nov10° / 518.319.92.5
Dec / -0°317.84.69.40.1

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 14% of December, with mostly cloudy or overcast conditions the remaining 62%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13961
23961
33961
43763
53664
63664
73565
83565
93466
103466
113565
123565
133565
143664
153763
163961
174060
184060
194060
204060
214159
224159
234159
244159
254159
264060
274060
283961
293961
303961
313763

Chance of precipitation in December

Any precipitationSnow

Changyŏn gets around 31 mm of rain and snow over 7.8 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 25% and peaks near 31% on the wettest days, and about 5 days bring snow. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)Snow chance (%)
13011
23112
33112
43113
53013
63014
73015
83015
93016
102916
112916
122916
132816
142715
152615
162515
172415
182314
192214
202214
212114
222114
232014
242014
252014
262014
271915
281915
291915
301915
312015

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 21 km/h in December, the windiest month of the year.

Across December, daily wind ranges from about 20 km/h on the calmest days to 21 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202531
Wind speed (km/h)Feels
120breezy
220breezy
320breezy
420breezy
520breezy
621breezy
721breezy
821breezy
921breezy
1021breezy
1121breezy
1221breezy
1321breezy
1421breezy
1521breezy
1621breezy
1721breezy
1821breezy
1921breezy
2021breezy
2121breezy
2221breezy
2321breezy
2421breezy
2521breezy
2621breezy
2721breezy
2821breezy
2921breezy
3021breezy
3121breezy

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 30 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 6 minutes over December. Sunrise moves from 7:43 AM to 8:02 AM, and sunset from 5:15 PM to 5:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.57:435:15
29.57:445:15
39.57:455:15
49.57:465:15
59.57:475:15
69.57:485:15
79.47:495:15
89.47:495:15
99.47:505:15
109.47:515:15
119.47:525:15
129.47:535:15
139.47:535:16
149.47:545:16
159.47:555:16
169.47:555:16
179.37:565:17
189.37:565:17
199.37:575:17
209.37:585:18
219.37:585:18
229.37:595:19
239.37:595:19
249.37:595:20
259.38:005:20
269.38:005:21
279.38:015:21
289.48:015:22
299.48:015:23
309.48:015:23
319.48:025:24

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 1.99 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 1.99 kWh/m² to a high of 6.01 kWh/m² in May across the year — December's 1.99 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.0Moderate
22.0Moderate
32.0Moderate
42.0Moderate
52.0Moderate
62.0Moderate
72.0Dim
82.0Dim
92.0Dim
102.0Dim
112.0Dim
122.0Dim
132.0Dim
142.0Dim
152.0Dim
162.0Dim
172.0Moderate
182.0Moderate
192.0Moderate
202.0Moderate
212.0Moderate
222.0Moderate
232.0Moderate
242.0Moderate
252.0Moderate
262.0Moderate
272.0Moderate
282.1Moderate
292.1Moderate
302.1Moderate
312.1Moderate
Planning a trip in December

Hazard calendar for Changyŏn

In seasonPeak

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

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

Changyŏn'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 Changyŏn?

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

0.1
Sightseeing
10th-best month of the year
0.0
Beach & pool
9th-best month of the year

December is a weaker month for outdoor sightseeing in Changyŏn.

What to pack for Changyŏn in December

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

In December, Changyŏn sees daytime highs around 4°C and nights near -0°C. Pack a warm layer. Worth having: a heavy coat and a windbreaker. About 8 days see rain.

a warm layera heavy coata windbreaker

Sea temperature near Changyŏn in December

The nearest coast averages about 10°C in December — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 24 km away) is warmest in August at about 22°C and coldest in February near 4°C.

It's comfortable for a long swim from Jul 15 to Sep 29 — about 2.5 months when the water holds above 20°C.

0°10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan6Bracing
Feb4Bracing
Mar5Bracing
Apr7Bracing
May11Bracing
Jun16Cool
Jul20Refreshing
Aug22Refreshing
Sep21Refreshing
Oct18Cool
Nov15Bracing
Dec10Bracing

UV index in Changyŏn 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 Changyŏn peaks around August 13 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 20 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateLowAug 13UV 8Dec 20UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar4Moderate
Apr6High
May7High
Jun6High
Jul8Very high
Aug8Very high
Sep7High
Oct4Moderate
Nov3Moderate
Dec2Low

Air quality in Changyŏn 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 Changyŏn is worst in November — around 82 µg/m³ PM2.5 (unhealthy), about 2.1× the cleanest month (July, 40 µg/m³).

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

0306090JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyNov 1981 µg/m³Jul 2240 µg/m³
PM2.5 (µg/m³)Level
Jan80Unhealthy
Feb78Unhealthy
Mar80Unhealthy
Apr66Unhealthy
May54Poor
Jun46Poor
Jul40Poor
Aug41Poor
Sep58Unhealthy
Oct72Unhealthy
Nov82Unhealthy
Dec77Unhealthy
Location & terrain

Where is Changyŏn?

Changyŏn sits at 38.3°N, 125.1°E, 21 m above sea level, in North Korea. The nearest listed city is Songhwa, 13 km away.

Sinch’ŏn-ŭpOngjinAnak

Topography around Changyŏn

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

Within 3 km, the terrain around Changyŏn has only modest variations in elevation — a maximum elevation change of 128 m around an average of 36 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 581 m; within 80 km, large variations in elevation — a maximum elevation change of 1,030 m.

The land around Changyŏn is covered by cropland (65%) within 3 km, trees (48%) and cropland (41%) within 16 km, and water (52%) and cropland (27%) within 80 km.

3 km
128 m
16 km
581 m
80 km
1,030 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Songhwa 13 km · Kwail-ŭp 23 km · Samch’ŏn 23 km · T’aet’an-ŭp 25 km · Ŭllyul 30 km · Sinch’ŏn-ŭp 36 km · Ongjin 42 km · Anak 45 km

North Korea travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / F
220 V · 50 Hz
Safe drinking water
67%
of population, 2023
Road deaths
24.2
per 100k/yr, 2019
Income group
Low
World Bank

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 Changyŏn (38.2508°, 125.0961°, elevation 21 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).