Namsa weather in December

In December, Namsa sees average daytime highs of 7°C and overnight lows near -2°C, with 25 mm of precipitation across 4.9 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 9°C in the first days to 5°C by the end. The sky is clear or mostly clear about 31% 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 Namsa's 6th-clearest and 7th-windiest month. For the whole year in context, see Namsa's year-round climate.

Daytime high
11th warmest
Overnight low
-2°
3rd coldest
Precipitation
25 mm
4.9 wet days
Daylight
9 h 36 min
7:41 AM – 5:15 PM
Cloud cover
56%
6th clearest
Wind
9 km/h
7th windiest
Solar energy
2.29 kWh/m²
Travel score
0.8
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 9°C in the first days to 5°C by the end.

A typical December day in Namsa reaches about 7°C in the afternoon and slips back to -2°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 12°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
290
390
490
58-1
68-1
78-1
88-1
97-1
107-1
117-2
127-2
137-2
147-2
157-2
166-2
176-2
186-2
196-2
206-3
216-3
226-3
236-3
246-3
256-3
265-3
275-3
285-3
295-3
305-3
315-3

How December really feels in Namsa

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.

Namsa 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 / -4°244.92.49.80.0
Feb / -3°324.71.310.60.9
Mar12° / 506.90.811.73.6
Apr19° / 817.1012.96.4
May24° / 13°877.4013.97.3
Jun27° / 18°1338.9014.46.4
Jul29° / 23°26215.9014.24.5
Aug30° / 23°23315013.44.4
Sep26° / 17°1458.4012.26.8
Oct21° / 10°584.8011.17.5
Nov14° / 436.20.110.14.4
Dec / -2°254.91.59.60.8

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 31% 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 49%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25545
35545
45446
55347
65248
75149
85149
95050
104951
114951
124951
134852
144951
154951
164951
174951
184951
194951
205050
215050
225050
235149
245149
255149
265248
275248
285149
295050
305050
314951

Chance of precipitation in December

Any precipitationSnow

Namsa gets around 25 mm of rain and snow over 4.9 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 21% 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 (%)
1213
2213
3203
4204
5204
6204
7194
8194
9184
10184
11174
12164
13164
14154
15144
16144
17134
18134
19134
20134
21135
22135
23135
24135
25136
26146
27146
28147
29147
30147
31147

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 9 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
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
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 7:29 AM to 7:47 AM, and sunset from 5:14 PM to 5:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.77:295:14
29.77:305:14
39.77:315:14
49.77:325:13
59.77:335:13
69.77:345:13
79.77:345:13
89.67:355:14
99.67:365:14
109.67:375:14
119.67:375:14
129.67:385:14
139.67:395:14
149.67:395:15
159.67:405:15
169.67:415:15
179.67:415:15
189.67:425:16
199.67:435:16
209.67:435:17
219.67:445:17
229.67:445:18
239.67:445:18
249.67:455:19
259.67:455:19
269.67:465:20
279.67:465:20
289.67:465:21
299.67:475:21
309.67:475:22
319.67:475:23

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.29 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.29 kWh/m² to a high of 5.89 kWh/m² in May across the year — December's 2.29 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.4Moderate
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
202.3Moderate
212.3Moderate
222.3Moderate
232.3Moderate
242.3Moderate
252.3Moderate
262.3Moderate
272.4Moderate
282.4Moderate
292.4Moderate
302.4Moderate
312.4Moderate
Planning a trip in December

Hazard calendar for Namsa

In seasonPeak

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

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

Namsa's rainy season runs June–September, 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 Namsa?

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

0.8
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 Namsa.

What to pack for Namsa in December

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

In December, Namsa sees daytime highs around 7°C and nights near -2°C. Pack a warm layer. Worth having: a heavy coat. About 5 days see rain.

a warm layera heavy coat

Sea temperature near Namsa 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 39 km away) is warmest in August at about 26°C and coldest in February near 6°C.

It's comfortable for a long swim from Jun 25 to Oct 10 — about 3.6 months when the water holds above 20°C.

0°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan7Bracing
Feb6Bracing
Mar6Bracing
Apr9Bracing
May14Bracing
Jun19Cool
Jul23Refreshing
Aug26Warm
Sep23Refreshing
Oct19Cool
Nov15Bracing
Dec10Bracing

UV index in Namsa 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 Namsa peaks around August 16 at about 8 (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 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateAug 16UV 8Dec 23UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar5High
Apr7High
May8Very high
Jun7Very high
Jul8Very high
Aug8Very high
Sep8Very high
Oct5High
Nov3Moderate
Dec2Moderate

Air quality in Namsa 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 Namsa is worst in March — around 64 µg/m³ PM2.5 (unhealthy), about 2.0× the cleanest month (July, 32 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorModeratePoorMar 1663 µg/m³Jul 2133 µg/m³
PM2.5 (µg/m³)Level
Jan52Poor
Feb56Unhealthy
Mar64Unhealthy
Apr55Poor
May46Poor
Jun42Poor
Jul32Moderate
Aug35Moderate
Sep43Poor
Oct48Poor
Nov51Poor
Dec48Poor
Location & terrain

Where is Namsa?

Namsa sits at 35.9°N, 127.0°E, 11 m above sea level, in South Korea. The nearest listed city is Iksan, 9.0 km away.

Buan

Topography around Namsa

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

Within 3 km, the terrain around Namsa has only modest variations in elevation — a maximum elevation change of 43 m around an average of 16 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 611 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,594 m.

The land around Namsa is covered by cropland (65%) within 3 km, cropland (46%), trees (27%) and artificial surfaces (21%) within 16 km, and trees (56%) and cropland (20%) within 80 km.

3 km
43 m
16 km
611 m
80 km
1,594 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Iksan 9.0 km · Wanju 13 km · Jeonju 15 km · Kimje 21 km · Yŏnmu 22 km · Nonsan 30 km · Gunsan 31 km · Buan 37 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 Namsa (35.9333°, 127.05°, elevation 11 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).