Boryeong climate — normals and trends
Boryeong (South Korea) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 13.0 °C and it receives 1,206 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 (25.8 °C on average) and the coldest is January (0.6 °C). Rainfall peaks in July.
Boryeong averages 49 frost days, 4 hot days (≥ 30 °C) and 104 rainy days per year.
Boryeong has warmed by +1.4 °C between 1940 and 2025, or +0.17 °C per decade. This trend is statistically significant.
The number of frost days there went from about 57 to 41 per year over the period.
The hottest day of the period reached 33.9 °C (on 1 August 1956) and the coldest -12.4 °C (on 8 January 2021).
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
BoryeongChungcheongnam-do
- coords
- 36.35°, 126.60°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
13.0°C
Average daily high
15.0°C
Average daily low
11.2°C
Annual rainfall
1,206mm
Sunshine / day
8.7h
Mean relative humidity
77%
Average peak wind
20.7km/h
Seasonal range
25.2°C
Frost days (< 0 °C)
49 d/yr
Hot days (≥ 30 °C)
4 d/yr
Rainy days (≥ 1 mm)
104 d/yr
Annual snowfall
22.9 cm
Average feels-like high
14.2 °C
Average feels-like low
9.2 °C
Average peak gust
33.7 km/h
Tropical nights (≥ 20 °C)
83 d/yr
Solar radiation
15.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.40 · 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
33.9 °C
1 August 1956
Coldest day
-12.4 °C
8 January 2021
Wettest day
218 mm
30 September 1998
Windiest day
78.0 km/h
28 August 2012
Strongest gust
136.8 km/h
28 August 2012
Hottest feels-like
40.8 °C
5 August 2017
Coldest feels-like
-19.0 °C
26 February 1981
Snowiest day
10.5 cm
31 January 1969
Sunniest day
14.0 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 | 4.7 °C | +1.8 °C | 34 mm | +2 mm |
| Feb | 3.0 °C | -0.8 °C | 21 mm | -12 mm |
| Mar | 9.2 °C | +1.7 °C | 49 mm | -2 mm |
| Apr | 13.6 °C | +0.9 °C | 80 mm | -6 mm |
| May | 17.8 °C | +0.1 °C | 118 mm | +23 mm |
| Jun | 23.1 °C | +1.3 °C | 267 mm | +129 mm |
| Jul | 28.8 °C | +3.2 °C | 237 mm | -36 mm |
| Aug | 29.3 °C | +1.8 °C | 183 mm | -21 mm |
| Sep | 26.3 °C | +2.3 °C | 312 mm | +165 mm |
| Oct | 20.5 °C | +2.0 °C | 213 mm | +156 mm |
| Nov | 13.6 °C | +1.3 °C | 19 mm | -35 mm |
| Dec | 7.3 °C | +1.3 °C | 50 mm | +11 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 Boryeong?
Boryeong has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 13.0 °C and it receives 1,206 mm of precipitation per year.
What is the hottest day ever recorded in Boryeong?
The hottest day measured in Boryeong between 1940 and 2025 was 1 August 1956, reaching 33.9 °C.
What is the coldest day in Boryeong?
The coldest day measured in Boryeong between 1940 and 2025 was 8 January 2021, at -12.4 °C.
Does it snow in Boryeong?
Yes. Boryeong gets on average 22.9 cm of snow per year and has around 49 frost days.
Has the climate of Boryeong warmed?
Yes: Boryeong warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Boryeong?
The wettest day measured in Boryeong between 1940 and 2025 was 30 September 1998, with 218 mm of rain in 24 hours.
What was the windiest day in Boryeong?
The windiest day measured in Boryeong between 1940 and 2025 was 28 August 2012, with winds reaching 78.0 km/h.
What is the warmest month in Boryeong?
The warmest month in Boryeong is August (25.8 °C on average); the coldest is January (0.6 °C).
How much does it rain in Boryeong?
Boryeong receives on average 1,206 mm of precipitation per year, spread over about 104 rainy days.
Is it sunny in Boryeong?
Boryeong gets on average 8.7 hours of sunshine per day, roughly 3,175 hours per year over 1940-2025.
What is the biggest single-day snowfall in Boryeong?
The heaviest 24-hour snowfall measured in Boryeong between 1940 and 2025 was 31 January 1969, with 10.5 cm.
Are there tropical nights in Boryeong?
Yes: Boryeong has on average 83 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Boryeong?
In Boryeong, between 1940 and 2025, the highest apparent temperature reached 40.8 °C on 5 August 2017, and the lowest was -19.0 °C on 26 February 1981.
Compare Boryeong with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Boryeong