Gyeongju climate — normals and trends
Gyeongju (South Korea) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 13.3 °C and it receives 1,097 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 (0.2 °C). Rainfall peaks in July.
Gyeongju averages 83 frost days, 31 hot days (≥ 30 °C) and 95 rainy days per year.
Gyeongju has warmed by +2.7 °C between 1940 and 2025, or +0.32 °C per decade. This trend is statistically significant.
The number of frost days there went from about 101 to 65 per year over the period.
The hottest day of the period reached 39.4 °C (on 9 August 2013) and the coldest -17.1 °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
GyeongjuGyeongsangbuk-do
- coords
- 35.84°, 129.21°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
13.3°C
Average daily high
17.9°C
Average daily low
9.1°C
Annual rainfall
1,097mm
Sunshine / day
8.9h
Mean relative humidity
68%
Average peak wind
16.3km/h
Seasonal range
25.7°C
Frost days (< 0 °C)
83 d/yr
Hot days (≥ 30 °C)
31 d/yr
Rainy days (≥ 1 mm)
95 d/yr
Annual snowfall
9.9 cm
Average feels-like high
16.8 °C
Average feels-like low
7.5 °C
Average peak gust
39.2 km/h
Tropical nights (≥ 20 °C)
64 d/yr
Solar radiation
15.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.7 °C
since 1940
+0.3 °C per decade · r² = 0.72 · 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
39.4 °C
9 August 2013
Coldest day
-17.1 °C
16 January 1967
Wettest day
188 mm
6 September 2005
Windiest day
64.7 km/h
31 August 1987
Strongest gust
169.6 km/h
16 July 1987
Hottest feels-like
44.0 °C
28 July 1953
Coldest feels-like
-24.5 °C
16 January 1967
Snowiest day
18.2 cm
18 February 1986
Sunniest day
14.0 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 | 6.6 °C | +1.7 °C | 10 mm | -18 mm |
| Feb | 6.3 °C | -0.8 °C | 19 mm | -18 mm |
| Mar | 14.2 °C | +2.2 °C | 79 mm | +17 mm |
| Apr | 20.1 °C | +2.1 °C | 48 mm | -35 mm |
| May | 22.3 °C | -0.4 °C | 116 mm | +27 mm |
| Jun | 28.6 °C | +3.1 °C | 154 mm | +17 mm |
| Jul | 31.6 °C | +3.2 °C | 142 mm | -57 mm |
| Aug | 32.9 °C | +3.5 °C | 129 mm | -39 mm |
| Sep | 27.8 °C | +2.9 °C | 125 mm | -37 mm |
| Oct | 20.7 °C | +0.6 °C | 128 mm | +65 mm |
| Nov | 15.7 °C | +1.8 °C | 17 mm | -29 mm |
| Dec | 9.2 °C | +1.9 °C | 18 mm | -6 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 Gyeongju?
Gyeongju has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 13.3 °C and it receives 1,097 mm of precipitation per year.
What is the hottest day ever recorded in Gyeongju?
The hottest day measured in Gyeongju between 1940 and 2025 was 9 August 2013, reaching 39.4 °C.
What is the coldest day in Gyeongju?
The coldest day measured in Gyeongju between 1940 and 2025 was 16 January 1967, at -17.1 °C.
Does it snow in Gyeongju?
Yes. Gyeongju gets on average 9.9 cm of snow per year and has around 83 frost days.
Has the climate of Gyeongju warmed?
Yes: Gyeongju warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Gyeongju?
The wettest day measured in Gyeongju between 1940 and 2025 was 6 September 2005, with 188 mm of rain in 24 hours.
What was the windiest day in Gyeongju?
The windiest day measured in Gyeongju between 1940 and 2025 was 31 August 1987, with winds reaching 64.7 km/h.
What is the warmest month in Gyeongju?
The warmest month in Gyeongju is August (25.9 °C on average); the coldest is January (0.2 °C).
How much does it rain in Gyeongju?
Gyeongju receives on average 1,097 mm of precipitation per year, spread over about 95 rainy days.
Is it sunny in Gyeongju?
Gyeongju 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 Gyeongju?
The heaviest 24-hour snowfall measured in Gyeongju between 1940 and 2025 was 18 February 1986, with 18.2 cm.
Are there tropical nights in Gyeongju?
Yes: Gyeongju has on average 64 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Gyeongju?
In Gyeongju, between 1940 and 2025, the highest apparent temperature reached 44.0 °C on 28 July 1953, and the lowest was -24.5 °C on 16 January 1967.
Compare Gyeongju with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Gyeongju