Yangsan in Winter
In winter (December, January and February), Yangsan sees average daytime highs around 9°C and overnight lows near -0°C, with 99 mm of precipitation over about 12 wet days across the season. It is the coldest season of the year and the driest season of the year.
Across winter, daytime highs hold fairly steady around 9°C. The sky is clear or mostly clear about 54% of the time across winter, and the air most often feels dry.
Winter is Yangsan's weakest season of the year to visit on our travel score. For the whole year in context, see Yangsan's year-round climate.
- Avg daytime high
- 9°C
- coldest season of the year
- Avg overnight low
- -0°C
- Precipitation
- 99 mm
- 12 wet days
- Avg wind
- 13 km/h
- Travel score
- 2.0
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Yangsan in Winter
Across winter, daytime highs hold fairly steady around 9°C.
A typical winter day in Yangsan reaches about 9°C and drops to -0°C overnight. The warmest of the three months is February, the coolest January.
How winter really feels in Yangsan
Once humidity and wind are folded in, winter brings about 0 days that feel above 32°C and 90 that feel at or below 0°C.
The story in winter is cold — wind chill drags the overnight "feels like" below the raw low.
Yangsan weather by month
How the three winter months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 7° / -1° | 30 | 4.2 | 0.4 | 9.9 | 1.2 |
| Feb | 9° / 0° | 41 | 4.6 | 0.5 | 10.7 | 2.3 |
| Mar | 14° / 4° | 79 | 7.4 | 0.5 | 11.7 | 4.2 |
| Apr | 18° / 9° | 111 | 7.8 | 0 | 12.9 | 6.2 |
| May | 22° / 14° | 118 | 7.9 | 0 | 13.8 | 7.0 |
| Jun | 25° / 18° | 159 | 9.2 | 0 | 14.3 | 6.7 |
| Jul | 28° / 22° | 242 | 13.9 | 0 | 14.1 | 5.3 |
| Aug | 29° / 23° | 211 | 13.4 | 0 | 13.3 | 5.0 |
| Sep | 26° / 19° | 163 | 9.6 | 0 | 12.2 | 6.7 |
| Oct | 21° / 13° | 71 | 4.7 | 0 | 11.1 | 7.6 |
| Nov | 15° / 6° | 48 | 5 | 0.1 | 10.1 | 5.5 |
| Dec | 9° / 1° | 28 | 3.6 | 0.3 | 9.7 | 2.4 |
Cloud cover in Winter
The sky is clear or mostly clear about 54% of the time across winter.
Chance of precipitation in Winter
Yangsan gets around 99 mm of rain and snow over 12 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 13 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 9 h 48 min in early December to 11 h 06 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 3.1 kWh/m².
Hazard calendar for Yangsan
In winter, Yangsan overlaps its pacific typhoon season. The full year is below, with each hazard's peak months called out.
Yangsan sits in the Pacific typhoon belt; the season peaks July–October.
Yangsan's rainy season runs April–September, when most of the year's rain falls.
Is winter a good time to visit Yangsan?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a weaker month for outdoor sightseeing in Yangsan.
What to pack for Yangsan in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Yangsan sees daytime highs around 9°C and nights near -0°C. Pack a warm layer. Worth having: a heavy coat. About 12 days see rain.
Sea temperature near Yangsan in Winter
The nearest coast averages about 15°C across winter — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 26 km away) is warmest in August at about 26°C and coldest in February near 14°C.
It's comfortable for a long swim from Jun 17 to Nov 7 — about 4.7 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 15 | 14 | 14 | 15 | 17 | 20 | 23 | 26 | 25 | 22 | 19 | 17 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Cool | Refreshing | Refreshing | Warm | Warm | Refreshing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 15 | Bracing |
| Feb | 14 | Bracing |
| Mar | 14 | Bracing |
| Apr | 15 | Bracing |
| May | 17 | Cool |
| Jun | 20 | Refreshing |
| Jul | 23 | Refreshing |
| Aug | 26 | Warm |
| Sep | 25 | Warm |
| Oct | 22 | Refreshing |
| Nov | 19 | Cool |
| Dec | 17 | Cool |
UV index in Yangsan in Winter
Clear-sky midday UV across winter averages around 3. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Yangsan peaks around August 18 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.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 4 | 5 | 7 | 8 | 8 | 8 | 9 | 9 | 5 | 4 | 2 |
| Level | Moderate | Moderate | High | High | Very high | Very high | Very high | Very high | Very high | High | Moderate | Moderate |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Moderate |
| Feb | 4 | Moderate |
| Mar | 5 | High |
| Apr | 7 | High |
| May | 8 | Very high |
| Jun | 8 | Very high |
| Jul | 8 | Very high |
| Aug | 9 | Very high |
| Sep | 9 | Very high |
| Oct | 5 | High |
| Nov | 4 | Moderate |
| Dec | 2 | Moderate |
Air quality in Yangsan in Winter
Average fine-particle pollution (PM2.5) through the year — so you can see where winter falls, not just the annual average.
Air quality in Yangsan is worst in March — around 68 µg/m³ PM2.5 (unhealthy), about 1.6× the cleanest month (August, 42 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 52 | 58 | 68 | 66 | 65 | 55 | 46 | 42 | 44 | 50 | 58 | 48 |
| Level | Poor | Unhealthy | Unhealthy | Unhealthy | Unhealthy | Poor | Poor | Poor | Poor | Poor | Unhealthy | Poor |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 52 | Poor |
| Feb | 58 | Unhealthy |
| Mar | 68 | Unhealthy |
| Apr | 66 | Unhealthy |
| May | 65 | Unhealthy |
| Jun | 55 | Poor |
| Jul | 46 | Poor |
| Aug | 42 | Poor |
| Sep | 44 | Poor |
| Oct | 50 | Poor |
| Nov | 58 | Unhealthy |
| Dec | 48 | Poor |
Where is Yangsan?
Yangsan sits at 35.3°N, 129.0°E, 6 m above sea level, in South Korea. The nearest listed city is Ungsang, 14 km away.
Topography around Yangsan
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Yangsan.
Within 3 km, the terrain around Yangsan has significant variations in elevation — a maximum elevation change of 492 m around an average of 100 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 946 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,204 m.
The land around Yangsan is covered by trees (54%) and artificial surfaces (36%) within 3 km, trees (74%) within 16 km, and trees (44%) and water (39%) within 80 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
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 Yangsan (35.342°, 129.0336°, elevation 6 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.