Sil-li weather in December

In December, Sil-li sees average daytime highs of 1°C and overnight lows near -7°C, with 24 mm of precipitation across 5.5 wet days and about 9.3 hours of daylight. It is the 11th-warmest and 10th-wettest month of the year here.

Highs ease over the month, from about 3°C in the first days to -0°C by the end. The sky is clear or mostly clear about 57% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 24 min at the start of December to 9 h 12 min by month's end. Set against the rest of the year, December is Sil-li's 2nd-clearest and 5th-windiest month. For the whole year in context, see Sil-li's year-round climate.

Daytime high
11th warmest
Overnight low
-7°
2nd coldest
Precipitation
24 mm
5.5 wet days
Daylight
9 h 12 min
7:57 AM – 5:11 PM
Cloud cover
38%
2nd clearest
Wind
11 km/h
5th windiest
Solar energy
2.22 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 3°C in the first days to -0°C by the end.

A typical December day in Sil-li reaches about 1°C in the afternoon and slips back to -7°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between -5°C and 6°C. Set against its neighbours, December runs about 8°C cooler than November and about 2°C warmer than January.

-20°-10°10°151015202531
Avg high (°C)Avg low (°C)
14-4
24-4
34-4
43-4
53-5
63-5
72-5
82-5
92-6
102-6
112-6
121-6
131-6
141-7
151-7
161-7
171-7
181-7
191-7
200-7
210-8
220-8
230-8
240-8
250-8
260-8
270-8
280-8
290-9
300-9
31-1-9

How December really feels in Sil-li

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
24 feel bitter (≤ -10°C)

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

Sil-li weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan-1° / -10°112.82.69.50.0
Feb / -6°213.62.410.40.0
Mar / -1°274.41.111.71.9
Apr16° / 556.60.1135.4
May22° / 12°977.7014.17.1
Jun26° / 18°1189.9014.76.7
Jul28° / 22°29414.9014.55.3
Aug29° / 22°22714013.65.2
Sep25° / 16°1026.7012.37.4
Oct18° / 506.50116.6
Nov / 517.10.99.82.1
Dec / -7°245.53.39.30.0

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 57% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 12% of December, with mostly cloudy or overcast conditions the remaining 31%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16337
26436
36337
46436
56436
66535
76535
86634
96634
106733
116733
126733
136832
146832
156931
167030
177030
187129
197129
207228
217228
227129
237129
247228
257228
267228
277129
287129
297129
307129
317129

Chance of precipitation in December

Any precipitationSnow

Sil-li gets around 24 mm of rain and snow over 5.5 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 18% and peaks near 23% 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 (%)
1238
2239
3239
42310
52310
62311
72311
82312
92312
102312
112212
122212
132112
142112
152012
161912
171811
181711
191611
201510
211510
221410
231410
241310
251310
261310
271210
281210
291210
301210
311210

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 11 km/h in December.

Across December, 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 December

DaylightNight

Daylight runs from about 9 h 24 min at the start of December to 9 h 12 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 7:45 AM to 8:04 AM, and sunset from 5:10 PM to 5:19 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.47:455:10
29.47:465:10
39.47:475:10
49.47:485:10
59.37:495:10
69.37:505:10
79.37:515:10
89.37:525:10
99.37:525:10
109.37:535:10
119.37:545:10
129.37:555:10
139.27:555:10
149.27:565:11
159.27:575:11
169.27:575:11
179.27:585:11
189.27:595:12
199.27:595:12
209.28:005:12
219.28:005:13
229.28:015:13
239.28:015:14
249.28:025:14
259.28:025:15
269.28:025:15
279.28:035:16
289.28:035:17
299.28:035:17
309.28:045:18
319.28:045:19

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.22 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.22 kWh/m² to a high of 5.74 kWh/m² in May across the year — December's 2.22 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.2Moderate
22.2Moderate
32.2Moderate
42.2Moderate
52.2Moderate
62.2Moderate
72.2Moderate
82.2Moderate
92.2Moderate
102.2Moderate
112.2Moderate
122.2Moderate
132.2Moderate
142.2Moderate
152.2Moderate
162.2Moderate
172.2Moderate
182.2Moderate
192.2Moderate
202.2Moderate
212.3Moderate
222.3Moderate
232.3Moderate
242.3Moderate
252.3Moderate
262.3Moderate
272.3Moderate
282.3Moderate
292.3Moderate
302.4Moderate
312.4Moderate
Planning a trip in December

Hazard calendar for Sil-li

In seasonPeak

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

Sil-li sits in the Pacific typhoon belt; the season peaks July–October.

Sil-li'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 Sil-li?

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

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

December is a weaker month for outdoor sightseeing in Sil-li.

What to pack for Sil-li in December

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

In December, Sil-li sees daytime highs around 1°C and nights near -7°C. Pack a warm layer and a heavy coat. About 6 days see rain.

a warm layera heavy coat

Sea temperature near Sil-li in December

The nearest coast averages about 6°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 16 km away) is warmest in August at about 25°C and coldest in February near -0°C.

It's comfortable for a long swim from Jul 3 to Oct 2 — about 3 months when the water holds above 20°C.

0°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan2Bracing
Feb0Bracing
Mar2Bracing
Apr7Bracing
May13Bracing
Jun18Cool
Jul22Refreshing
Aug25Warm
Sep23Refreshing
Oct18Cool
Nov12Bracing
Dec6Bracing

UV index in Sil-li 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 Sil-li peaks around August 18 at about 8 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 19 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highModerateLowAug 18UV 8Dec 19UV 2
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar3Moderate
Apr5High
May7High
Jun6High
Jul7High
Aug8Very high
Sep7High
Oct4Moderate
Nov2Moderate
Dec2Low

Air quality in Sil-li 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 Sil-li is worst in January — around 106 µg/m³ PM2.5 (unhealthy), about 2.1× the cleanest month (August, 50 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorUnhealthyJan 17104 µg/m³Aug 1050 µg/m³
PM2.5 (µg/m³)Level
Jan106Unhealthy
Feb94Unhealthy
Mar94Unhealthy
Apr80Unhealthy
May68Unhealthy
Jun59Unhealthy
Jul50Poor
Aug50Poor
Sep67Unhealthy
Oct81Unhealthy
Nov90Unhealthy
Dec91Unhealthy
Location & terrain

Where is Sil-li?

Sil-li sits at 39.5°N, 125.5°E, 9 m above sea level, in North Korea. The nearest listed city is Ch’ŏsal-li, 11 km away.

SunanSunch’ŏnKaech’ŏn

Topography around Sil-li

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

Within 3 km, the terrain around Sil-li has only modest variations in elevation — a maximum elevation change of 30 m around an average of 7 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 408 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,229 m.

The land around Sil-li is covered by cropland (84%) within 3 km, cropland (74%) within 16 km, and cropland (36%), trees (34%) and water (24%) within 80 km.

3 km
30 m
16 km
408 m
80 km
1,229 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Ch’ŏsal-li 11 km · Paek'ak 12 km · Sinanju 16 km · Anju 21 km · Chŏngju 32 km · Sunan 38 km · Sunch’ŏn 40 km · Kaech’ŏn 43 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 Sil-li (39.4947°, 125.4736°, elevation 9 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).