Yangsan climate — normals and trends
Yangsan (South Korea) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 13.8 °C and it receives 1,283 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is August (25.9 °C on average) and the coldest is January (1.6 °C). Rainfall peaks in July.
Yangsan averages 67 frost days, 19 hot days (≥ 30 °C) and 95 rainy days per year.
Yangsan has warmed by +2.6 °C between 1940 and 2025, or +0.31 °C per decade. This trend is statistically significant.
The number of frost days there went from about 83 to 51 per year over the period.
The hottest day of the period reached 36.6 °C (on 11 August 2013) and the coldest -14.4 °C (on 16 January 1967).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
YangsanGyeongsangnam-do
- coords
- 35.34°, 129.03°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
13.8°C
Average daily high
18.0°C
Average daily low
10.1°C
Annual rainfall
1,283mm
Sunshine / day
8.9h
Mean relative humidity
68%
Average peak wind
17.8km/h
Seasonal range
24.3°C
Frost days (< 0 °C)
67 d/yr
Hot days (≥ 30 °C)
19 d/yr
Rainy days (≥ 1 mm)
95 d/yr
Annual snowfall
4.7 cm
Average feels-like high
17.1 °C
Average feels-like low
8.3 °C
Average peak gust
42.3 km/h
Tropical nights (≥ 20 °C)
70 d/yr
Solar radiation
15.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.6 °C
since 1940
+0.3 °C per decade · r² = 0.73 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
36.6 °C
11 August 2013
Coldest day
-14.4 °C
16 January 1967
Wettest day
188 mm
23 June 1985
Windiest day
70.9 km/h
31 August 1987
Strongest gust
187.2 km/h
16 July 1987
Hottest feels-like
42.8 °C
3 August 2024
Coldest feels-like
-22.0 °C
16 January 1967
Snowiest day
17.4 cm
9 December 1952
Sunniest day
13.9 h
18 June 1948
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 7.4 °C | +1.3 °C | 9 mm | -20 mm |
| Feb | 7.1 °C | -0.9 °C | 26 mm | -18 mm |
| Mar | 13.9 °C | +1.5 °C | 78 mm | +3 mm |
| Apr | 18.8 °C | +1.3 °C | 67 mm | -49 mm |
| May | 21.1 °C | -0.6 °C | 167 mm | +47 mm |
| Jun | 26.5 °C | +2.2 °C | 156 mm | -20 mm |
| Jul | 30.8 °C | +3.3 °C | 133 mm | -104 mm |
| Aug | 31.5 °C | +2.6 °C | 229 mm | +52 mm |
| Sep | 28.0 °C | +2.7 °C | 122 mm | -44 mm |
| Oct | 22.1 °C | +1.4 °C | 137 mm | +71 mm |
| Nov | 16.4 °C | +1.7 °C | 21 mm | -30 mm |
| Dec | 10.4 °C | +2.0 °C | 18 mm | -8 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Yangsan?
Yangsan has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 13.8 °C and it receives 1,283 mm of precipitation per year.
What is the hottest day ever recorded in Yangsan?
The hottest day measured in Yangsan between 1940 and 2025 was 11 August 2013, reaching 36.6 °C.
What is the coldest day in Yangsan?
The coldest day measured in Yangsan between 1940 and 2025 was 16 January 1967, at -14.4 °C.
Does it snow in Yangsan?
Yes. Yangsan gets on average 4.7 cm of snow per year and has around 67 frost days.
Has the climate of Yangsan warmed?
Yes: Yangsan warmed by +2.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Yangsan?
The wettest day measured in Yangsan between 1940 and 2025 was 23 June 1985, with 188 mm of rain in 24 hours.
What was the windiest day in Yangsan?
The windiest day measured in Yangsan between 1940 and 2025 was 31 August 1987, with winds reaching 70.9 km/h.
What is the warmest month in Yangsan?
The warmest month in Yangsan is August (25.9 °C on average); the coldest is January (1.6 °C).
How much does it rain in Yangsan?
Yangsan receives on average 1,283 mm of precipitation per year, spread over about 95 rainy days.
Is it sunny in Yangsan?
Yangsan gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.
What is the biggest single-day snowfall in Yangsan?
The heaviest 24-hour snowfall measured in Yangsan between 1940 and 2025 was 9 December 1952, with 17.4 cm.
Are there tropical nights in Yangsan?
Yes: Yangsan has on average 70 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Yangsan?
In Yangsan, between 1940 and 2025, the highest apparent temperature reached 42.8 °C on 3 August 2024, and the lowest was -22.0 °C on 16 January 1967.
Compare Yangsan with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Yangsan