Gunpo climate — normals and trends
Gunpo (South Korea) has a hot-summer humid continental, dry winter climate (Dwa) under the Köppen-Geiger classification. Its mean annual temperature is 12.0 °C and it receives 1,148 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 (25.5 °C on average) and the coldest is January (-2.7 °C). Rainfall peaks in July.
Gunpo averages 105 frost days, 24 hot days (≥ 30 °C) and 97 rainy days per year.
Gunpo has warmed by +1.9 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The number of frost days there went from about 115 to 95 per year over the period.
The hottest day of the period reached 38.0 °C (on 15 August 2018) and the coldest -22.4 °C (on 25 January 1941).
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
GunpoGyeonggi-do
- coords
- 37.37°, 126.95°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
12.0°C
Average daily high
16.5°C
Average daily low
7.8°C
Annual rainfall
1,148mm
Sunshine / day
8.7h
Mean relative humidity
71%
Average peak wind
15.5km/h
Seasonal range
28.2°C
Frost days (< 0 °C)
105 d/yr
Hot days (≥ 30 °C)
24 d/yr
Rainy days (≥ 1 mm)
97 d/yr
Annual snowfall
19.9 cm
Average feels-like high
15.6 °C
Average feels-like low
6.1 °C
Average peak gust
34.7 km/h
Tropical nights (≥ 20 °C)
61 d/yr
Solar radiation
14.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.50 · 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
38.0 °C
15 August 2018
Coldest day
-22.4 °C
25 January 1941
Wettest day
202 mm
8 September 1948
Windiest day
53.1 km/h
7 September 2019
Strongest gust
118.8 km/h
28 August 2012
Hottest feels-like
44.9 °C
3 August 1959
Coldest feels-like
-28.2 °C
25 January 1941
Snowiest day
22.2 cm
28 January 1969
Sunniest day
14.2 h
23 June 1952
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 | 3.4 °C | +1.9 °C | 19 mm | -5 mm |
| Feb | 3.3 °C | -0.8 °C | 6 mm | -21 mm |
| Mar | 12.8 °C | +3.0 °C | 48 mm | +3 mm |
| Apr | 18.0 °C | +1.2 °C | 87 mm | +10 mm |
| May | 21.8 °C | -0.4 °C | 77 mm | -10 mm |
| Jun | 27.7 °C | +1.9 °C | 122 mm | -5 mm |
| Jul | 31.7 °C | +3.5 °C | 236 mm | -49 mm |
| Aug | 30.9 °C | +1.8 °C | 209 mm | -2 mm |
| Sep | 26.8 °C | +1.7 °C | 300 mm | +159 mm |
| Oct | 20.4 °C | +1.1 °C | 153 mm | +103 mm |
| Nov | 14.0 °C | +2.3 °C | 14 mm | -34 mm |
| Dec | 5.3 °C | +1.1 °C | 40 mm | +12 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 Gunpo?
Gunpo has a hot-summer humid continental, dry winter climate (Köppen Dwa). Over 1940-2025, the average annual temperature is 12.0 °C and it receives 1,148 mm of precipitation per year.
What is the hottest day ever recorded in Gunpo?
The hottest day measured in Gunpo between 1940 and 2025 was 15 August 2018, reaching 38.0 °C.
What is the coldest day in Gunpo?
The coldest day measured in Gunpo between 1940 and 2025 was 25 January 1941, at -22.4 °C.
Does it snow in Gunpo?
Yes. Gunpo gets on average 19.9 cm of snow per year and has around 105 frost days.
Has the climate of Gunpo warmed?
Yes: Gunpo warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Gunpo?
The wettest day measured in Gunpo between 1940 and 2025 was 8 September 1948, with 202 mm of rain in 24 hours.
What was the windiest day in Gunpo?
The windiest day measured in Gunpo between 1940 and 2025 was 7 September 2019, with winds reaching 53.1 km/h.
What is the warmest month in Gunpo?
The warmest month in Gunpo is August (25.5 °C on average); the coldest is January (-2.7 °C).
How much does it rain in Gunpo?
Gunpo receives on average 1,148 mm of precipitation per year, spread over about 97 rainy days.
Is it sunny in Gunpo?
Gunpo 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 Gunpo?
The heaviest 24-hour snowfall measured in Gunpo between 1940 and 2025 was 28 January 1969, with 22.2 cm.
Are there tropical nights in Gunpo?
Yes: Gunpo has on average 61 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Gunpo?
In Gunpo, between 1940 and 2025, the highest apparent temperature reached 44.9 °C on 3 August 1959, and the lowest was -28.2 °C on 25 January 1941.
Compare Gunpo with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Gunpo