Tongyeong climate — normals and trends
Tongyeong (South Korea) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 14.7 °C and it receives 1,426 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 (25.6 °C on average) and the coldest is January (4.5 °C). Rainfall peaks in July.
Tongyeong averages 16 frost days, 0 hot days (≥ 30 °C) and 97 rainy days per year.
Tongyeong has warmed by +1.0 °C between 1940 and 2025, or +0.11 °C per decade. This trend is statistically significant.
The number of frost days there went from about 22 to 10 per year over the period.
The hottest day of the period reached 30.2 °C (on 7 August 2017) and the coldest -8.1 °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
TongyeongGyeongsangnam-do
- coords
- 34.85°, 128.43°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
14.7°C
Average daily high
16.1°C
Average daily low
13.4°C
Annual rainfall
1,426mm
Sunshine / day
8.9h
Mean relative humidity
75%
Average peak wind
29.1km/h
Seasonal range
21.1°C
Frost days (< 0 °C)
16 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
97 d/yr
Annual snowfall
1.9 cm
Average feels-like high
14.9 °C
Average feels-like low
10.5 °C
Average peak gust
41.1 km/h
Tropical nights (≥ 20 °C)
93 d/yr
Solar radiation
15.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.0 °C
since 1940
+0.1 °C per decade · r² = 0.26 · 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
30.2 °C
7 August 2017
Coldest day
-8.1 °C
16 January 1967
Wettest day
234 mm
24 June 1985
Windiest day
114.4 km/h
31 August 1987
Strongest gust
179.6 km/h
31 August 1987
Hottest feels-like
38.3 °C
8 August 2016
Coldest feels-like
-16.8 °C
16 January 1967
Snowiest day
6.6 cm
10 March 2010
Sunniest day
13.8 h
26 June 1951
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 | 7.0 °C | +0.3 °C | 12 mm | -26 mm |
| Feb | 6.0 °C | -1.7 °C | 43 mm | -12 mm |
| Mar | 10.3 °C | -0.3 °C | 98 mm | +5 mm |
| Apr | 13.7 °C | -0.2 °C | 58 mm | -80 mm |
| May | 16.6 °C | -0.5 °C | 205 mm | +62 mm |
| Jun | 21.2 °C | +1.0 °C | 185 mm | -19 mm |
| Jul | 26.4 °C | +2.3 °C | 84 mm | -160 mm |
| Aug | 27.7 °C | +1.4 °C | 210 mm | +41 mm |
| Sep | 25.9 °C | +2.0 °C | 125 mm | -48 mm |
| Oct | 21.8 °C | +2.3 °C | 135 mm | +62 mm |
| Nov | 15.7 °C | +1.2 °C | 33 mm | -28 mm |
| Dec | 10.9 °C | +1.7 °C | 17 mm | -17 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 Tongyeong?
Tongyeong has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 14.7 °C and it receives 1,426 mm of precipitation per year.
What is the hottest day ever recorded in Tongyeong?
The hottest day measured in Tongyeong between 1940 and 2025 was 7 August 2017, reaching 30.2 °C.
What is the coldest day in Tongyeong?
The coldest day measured in Tongyeong between 1940 and 2025 was 16 January 1967, at -8.1 °C.
Does it snow in Tongyeong?
Yes. Tongyeong gets on average 1.9 cm of snow per year and has around 16 frost days.
Has the climate of Tongyeong warmed?
Yes: Tongyeong warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Tongyeong?
The wettest day measured in Tongyeong between 1940 and 2025 was 24 June 1985, with 234 mm of rain in 24 hours.
What was the windiest day in Tongyeong?
The windiest day measured in Tongyeong between 1940 and 2025 was 31 August 1987, with winds reaching 114.4 km/h.
What is the warmest month in Tongyeong?
The warmest month in Tongyeong is August (25.6 °C on average); the coldest is January (4.5 °C).
How much does it rain in Tongyeong?
Tongyeong receives on average 1,426 mm of precipitation per year, spread over about 97 rainy days.
Is it sunny in Tongyeong?
Tongyeong 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 Tongyeong?
The heaviest 24-hour snowfall measured in Tongyeong between 1940 and 2025 was 10 March 2010, with 6.6 cm.
Are there tropical nights in Tongyeong?
Yes: Tongyeong has on average 93 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Tongyeong?
In Tongyeong, between 1940 and 2025, the highest apparent temperature reached 38.3 °C on 8 August 2016, and the lowest was -16.8 °C on 16 January 1967.
Compare Tongyeong with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Tongyeong