Haenam weather in December

In December, Haenam sees average daytime highs of 8°C and overnight lows near 4°C, with 37 mm of precipitation across 6.4 wet days and about 9.7 hours of daylight. It is the 10th-warmest and 12th-wettest month of the year here.

Highs ease over the month, from about 10°C in the first days to 7°C by the end. The sky is clear or mostly clear about 27% of the time in December, and the air most often feels dry.

Daylight stretches from about 9 h 54 min at the start of December to 9 h 42 min by month's end. Set against the rest of the year, December is Haenam's 8th-clearest and 3rd-windiest month. For the whole year in context, see Haenam's year-round climate.

Daytime high
10th warmest
Overnight low
3rd coldest
Precipitation
37 mm
6.4 wet days
Daylight
9 h 42 min
7:39 AM – 5:21 PM
Cloud cover
60%
8th clearest
Wind
20 km/h
3rd windiest
Solar energy
2.24 kWh/m²
Travel score
1.7
out of 10

Temperature in December

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 10°C in the first days to 7°C by the end.

A typical December day in Haenam reaches about 8°C in the afternoon and slips back to 4°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 4°C and 12°C. Set against its neighbours, December runs about 5°C cooler than November and about 3°C warmer than January.

-5°10°15°151015202531
Avg high (°C)Avg low (°C)
1117
2106
3106
4106
5106
6106
7106
895
995
1095
1195
1295
1395
1485
1584
1684
1784
1884
1984
2084
2184
2284
2384
2474
2573
2673
2773
2873
2973
3073
3173

How December really feels in Haenam

Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 14 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
14
wind chill below the day's low

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

Haenam weather by month

How December compares with the rest of the year at a glance. December is the 10th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 376.72.59.90.4
Feb / 426.21.510.70.9
Mar10° / 737.50.411.72.4
Apr14° / 10°947.9012.84.4
May18° / 15°1047.6013.86.2
Jun22° / 19°1729.6014.36.4
Jul26° / 23°22312.3014.16.2
Aug27° / 25°18211.6013.36.3
Sep24° / 21°1408.5012.27.1
Oct20° / 16°574.7011.17.2
Nov14° / 10°506.6010.24.5
Dec / 376.41.39.71.7

Cloud cover in December

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in December.

Beyond those clear spells, partly cloudy skies cover about 18% of December, with mostly cloudy or overcast conditions the remaining 55%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25347
35347
45149
55050
64951
74951
84852
94654
104555
114555
124555
134456
144357
154357
164357
174456
184357
194258
204258
214357
224357
234258
244258
254357
264258
274159
284060
294060
303961
313862

Chance of precipitation in December

Any precipitationSnow

Haenam gets around 37 mm of rain and snow over 6.4 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 20% and peaks near 24% 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 (%)
1241
2242
3242
4242
5242
6242
7242
8233
9233
10233
11223
12223
13223
14213
15213
16203
17204
18194
19194
20184
21184
22185
23175
24175
25176
26176
27176
28176
29177
30177
31177

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 20 km/h in December.

Across December, daily wind ranges from about 19 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
119light breeze
219light breeze
319light breeze
419light breeze
519light breeze
619light breeze
719light breeze
820light breeze
920light breeze
1020light breeze
1120light breeze
1220light breeze
1320light breeze
1420light breeze
1520light breeze
1620light breeze
1720breezy
1820breezy
1920breezy
2020breezy
2120breezy
2220breezy
2320breezy
2420breezy
2521breezy
2621breezy
2721breezy
2821breezy
2921breezy
3021breezy
3121breezy

Sunrise & sunset in December

DaylightNight

Daylight runs from about 9 h 54 min at the start of December to 9 h 42 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 7:28 AM to 7:45 AM, and sunset from 5:19 PM to 5:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.97:285:19
29.87:295:19
39.87:295:19
49.87:305:19
59.87:315:19
69.87:325:19
79.87:335:19
89.87:335:19
99.77:345:19
109.77:355:19
119.77:365:19
129.77:365:20
139.77:375:20
149.77:385:20
159.77:385:20
169.77:395:21
179.77:395:21
189.77:405:21
199.77:415:22
209.77:415:22
219.77:425:23
229.77:425:23
239.77:435:24
249.77:435:24
259.77:435:25
269.77:445:25
279.77:445:26
289.77:445:26
299.77:455:27
309.77:455:28
319.77:455:28

Solar energy in December

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in December, about 2.24 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 2.24 kWh/m² to a high of 5.85 kWh/m² in May across the year — December's 2.24 kWh/m² sits near the bottom.

0123151015202531
Solar energy (kWh/m²)Level
12.4Moderate
22.4Moderate
32.3Moderate
42.3Moderate
52.3Moderate
62.3Moderate
72.3Moderate
82.3Moderate
92.2Moderate
102.2Moderate
112.2Moderate
122.2Moderate
132.2Moderate
142.2Moderate
152.2Moderate
162.2Moderate
172.2Moderate
182.2Moderate
192.2Moderate
202.2Moderate
212.2Moderate
222.2Moderate
232.2Moderate
242.2Moderate
252.3Moderate
262.3Moderate
272.3Moderate
282.3Moderate
292.3Moderate
302.3Moderate
312.3Moderate
Planning a trip in December

Hazard calendar for Haenam

In seasonPeak

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

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

Haenam's rainy season runs May–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 Haenam?

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

1.7
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 Haenam.

What to pack for Haenam in December

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

In December, Haenam sees daytime highs around 8°C and nights near 4°C. Pack a warm layer. Worth having: a windbreaker. About 6 days see rain.

a warm layera windbreaker

Sea temperature near Haenam in December

The nearest coast averages about 14°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 30 km away) is warmest in August at about 25°C and coldest in March near 11°C.

It's comfortable for a long swim from Jun 28 to Oct 14 — about 3.6 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan12Bracing
Feb11Bracing
Mar11Bracing
Apr12Bracing
May15Bracing
Jun18Cool
Jul22Refreshing
Aug25Warm
Sep23Refreshing
Oct20Cool
Nov16Cool
Dec14Bracing

UV index in Haenam 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 Haenam peaks around August 14 at about 8 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 14UV 8Dec 22UV 2
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar6High
Apr7High
May8Very high
Jun8Very high
Jul8Very high
Aug9Very high
Sep8Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Haenam 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 Haenam is worst in March — around 43 µg/m³ PM2.5 (poor), about 2.4× the cleanest month (July, 18 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 1842 µg/m³Jul 2418 µg/m³
PM2.5 (µg/m³)Level
Jan31Moderate
Feb36Poor
Mar43Poor
Apr37Poor
May30Moderate
Jun25Moderate
Jul18Moderate
Aug18Moderate
Sep22Moderate
Oct24Moderate
Nov27Moderate
Dec26Moderate
Location & terrain

Where is Haenam?

Haenam sits at 34.6°N, 126.6°E, 39 m above sea level, in South Korea. The nearest listed city is Yeongam, 27 km away.

MuanBoseongNajuSinanHwasun

Topography around Haenam

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

Within 3 km, the terrain around Haenam has significant variations in elevation — a maximum elevation change of 462 m around an average of 123 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 666 m; within 80 km, large variations in elevation — a maximum elevation change of 1,172 m.

The land around Haenam is covered by trees (59%) and cropland (24%) within 3 km, trees (48%) and cropland (40%) within 16 km, and water (57%) and trees (27%) within 80 km.

3 km
462 m
16 km
666 m
80 km
1,172 m
treesgrasslandcroplandartificial surfaceswater
December weather nearby: Yeongam 27 km · Jangheung 31 km · Mokpo 33 km · Muan 48 km · Boseong 49 km · Naju 52 km · Sinan 53 km · Hwasun 65 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 Haenam (34.5711°, 126.5989°, elevation 39 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).