Gumi weather in December

In December, Gumi sees average daytime highs of 7°C and overnight lows near -2°C, with 22 mm of precipitation across 3.6 wet days and about 9.6 hours of daylight. It is the 11th-warmest and 12th-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 51% 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 Gumi's 1st-clearest and 3rd-windiest month. For the whole year in context, see Gumi's year-round climate.

Daytime high
11th warmest
Overnight low
-2°
3rd coldest
Precipitation
22 mm
3.6 wet days
Daylight
9 h 36 min
7:36 AM – 5:10 PM
Cloud cover
42%
1st clearest
Wind
9 km/h
3rd windiest
Solar energy
2.51 kWh/m²
Travel score
0.9
out of 10

Gumi is city in North Gyeongsang Province, South Korea.

Density
656/km²
people per km²

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 9°C in the first days to 5°C by the end.

A typical December day in Gumi 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
39-1
49-1
58-1
68-1
78-1
88-2
97-2
107-2
117-2
127-2
137-2
147-2
157-2
166-3
176-3
186-3
196-3
206-3
216-3
226-3
236-3
246-3
256-3
266-3
275-3
285-4
295-4
305-4
315-4

How December really feels in Gumi

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.

Gumi weather by month

How December compares with the rest of the year at a glance. December is the 11th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / -4°233.71.99.80.0
Feb / -3°2941.110.61.3
Mar13° / 556.51.211.74.1
Apr20° / 787.30.112.96.6
May25° / 13°887.8013.97.2
Jun28° / 18°1329.2014.46.0
Jul30° / 22°22414.8014.24.5
Aug30° / 22°21514.5013.44.4
Sep26° / 17°1539.4012.26.7
Oct21° / 10°584.5011.17.4
Nov14° / 374.80.210.14.5
Dec / -2°223.60.89.60.9

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 16% of December, with mostly cloudy or overcast conditions the remaining 33%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16733
26733
36634
46634
56634
66733
76733
86634
96733
106733
116733
126634
136634
146733
156733
166733
176733
186733
196634
206733
216733
226733
236733
246832
256832
266931
276931
287030
297030
307030
317030

Chance of precipitation in December

Any precipitationSnow

Gumi gets around 22 mm of rain and snow over 3.6 wet days in December, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 12% and peaks near 16% on the wettest days, and about 1 day brings snow. The odds ease toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)Snow chance (%)
1163
2163
3163
4153
5153
6153
7143
8143
9143
10133
11133
12122
13122
14112
15112
16112
17112
18102
19102
20102
21102
22102
23102
24102
25102
2692
2793
2893
2993
3093
3193

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 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

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 7:25 AM to 7:43 AM, and sunset from 5:08 PM to 5:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.77:255:08
29.77:265:08
39.77:265:08
49.77:275:08
59.77:285:08
69.67:295:08
79.67:305:08
89.67:315:08
99.67:315:08
109.67:325:08
119.67:335:08
129.67:335:08
139.67:345:09
149.67:355:09
159.67:355:09
169.67:365:10
179.67:375:10
189.57:375:10
199.57:385:11
209.57:385:11
219.57:395:11
229.57:395:12
239.57:405:12
249.57:405:13
259.57:415:13
269.57:415:14
279.67:415:15
289.67:425:15
299.67:425:16
309.67:425:16
319.67:435:17

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.51 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.51 kWh/m² to a high of 5.85 kWh/m² in May across the year — December's 2.51 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.5Moderate
22.5Moderate
32.5Moderate
42.5Moderate
52.5Moderate
62.5Moderate
72.5Moderate
82.5Moderate
92.5Moderate
102.5Moderate
112.5Moderate
122.5Moderate
132.5Moderate
142.5Moderate
152.5Moderate
162.5Moderate
172.5Moderate
182.5Moderate
192.5Moderate
202.5Moderate
212.5Moderate
222.5Moderate
232.5Moderate
242.6Moderate
252.6Moderate
262.6Moderate
272.6Moderate
282.6Moderate
292.6Moderate
302.6Moderate
312.6Moderate
Planning a trip in December

Hazard calendar for Gumi

In seasonPeak

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

Gumi'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 Gumi?

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

0.9
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 Gumi.

What to pack for Gumi in December

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

In December, Gumi sees daytime highs around 7°C and nights near -2°C. Pack a warm layer. Worth having: a heavy coat. About 4 days see rain.

a warm layera heavy coat

UV index in Gumi 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 Gumi peaks around August 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 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 highHighModerateAug 15UV 9Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar5Moderate
Apr6High
May8Very high
Jun7Very high
Jul8Very high
Aug9Very high
Sep8Very high
Oct5High
Nov3Moderate
Dec2Moderate

Air quality in Gumi 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 Gumi is worst in March — around 63 µg/m³ PM2.5 (unhealthy), about 1.8× the cleanest month (August, 35 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorModeratePoorMar 1762 µg/m³Aug 935 µg/m³
PM2.5 (µg/m³)Level
Jan49Poor
Feb54Poor
Mar63Unhealthy
Apr55Unhealthy
May48Poor
Jun44Poor
Jul35Moderate
Aug35Moderate
Sep41Poor
Oct48Poor
Nov53Poor
Dec46Poor
Location & terrain

Where is Gumi?

Gumi sits at 36.1°N, 128.3°E, 63 m above sea level, in South Korea. The nearest listed city is Jenzan, 15 km away.

DaeguSangjuHwawŏnGyeongsan-si

Topography around Gumi

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

Within 3 km, the terrain around Gumi has large variations in elevation — a maximum elevation change of 605 m around an average of 128 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 948 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,578 m.

The land around Gumi is covered by trees (52%) and artificial surfaces (35%) within 3 km, trees (57%) and cropland (21%) within 16 km, and trees (78%) within 80 km.

3 km
605 m
16 km
948 m
80 km
1,578 m
treesgrasslandcroplandartificial surfacesbare terrainwater
December weather nearby: Jenzan 15 km · Waegwan 15 km · Gimcheon 19 km · Kunwi 25 km · Daegu 35 km · Sangju 37 km · Hwawŏn 38 km · Gyeongsan-si 48 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 Gumi (36.1136°, 128.336°, elevation 63 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).