Namwon climate — normals and trends
Namwon (South Korea) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 11.4 °C and it receives 1,280 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 (24.3 °C on average) and the coldest is January (-2.7 °C). Rainfall peaks in July.
Namwon averages 111 frost days, 19 hot days (≥ 30 °C) and 115 rainy days per year.
Namwon has warmed by +2.3 °C between 1940 and 2025, or +0.27 °C per decade. This trend is statistically significant.
The number of frost days there went from about 125 to 97 per year over the period.
The hottest day of the period reached 36.7 °C (on 23 July 1994) and the coldest -23.2 °C (on 18 January 1945).
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
NamwonJeollabuk-do
- coords
- 35.41°, 127.39°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.4°C
Average daily high
16.3°C
Average daily low
6.9°C
Annual rainfall
1,280mm
Sunshine / day
8.6h
Mean relative humidity
73%
Average peak wind
12.5km/h
Seasonal range
27.0°C
Frost days (< 0 °C)
111 d/yr
Hot days (≥ 30 °C)
19 d/yr
Rainy days (≥ 1 mm)
115 d/yr
Annual snowfall
30.8 cm
Average feels-like high
15.4 °C
Average feels-like low
5.5 °C
Average peak gust
36.8 km/h
Tropical nights (≥ 20 °C)
48 d/yr
Solar radiation
14.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.3 °C
since 1940
+0.3 °C per decade · r² = 0.61 · 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
36.7 °C
23 July 1994
Coldest day
-23.2 °C
18 January 1945
Wettest day
175 mm
11 July 1972
Windiest day
44.0 km/h
28 August 2012
Strongest gust
151.6 km/h
28 August 1986
Hottest feels-like
41.5 °C
7 July 2025
Coldest feels-like
-27.8 °C
18 January 1945
Snowiest day
15.4 cm
29 January 1965
Sunniest day
13.9 h
20 June 1944
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 | 4.0 °C | +1.9 °C | 20 mm | -14 mm |
| Feb | 3.3 °C | -1.2 °C | 28 mm | -13 mm |
| Mar | 12.5 °C | +2.3 °C | 66 mm | -2 mm |
| Apr | 18.9 °C | +2.0 °C | 66 mm | -30 mm |
| May | 21.2 °C | -0.6 °C | 138 mm | +32 mm |
| Jun | 27.1 °C | +2.1 °C | 212 mm | +37 mm |
| Jul | 30.9 °C | +3.4 °C | 189 mm | -89 mm |
| Aug | 30.2 °C | +1.8 °C | 190 mm | -1 mm |
| Sep | 26.2 °C | +2.0 °C | 170 mm | +19 mm |
| Oct | 20.5 °C | +1.7 °C | 173 mm | +115 mm |
| Nov | 13.7 °C | +1.9 °C | 23 mm | -29 mm |
| Dec | 6.7 °C | +1.9 °C | 28 mm | -5 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 Namwon?
Namwon has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 11.4 °C and it receives 1,280 mm of precipitation per year.
What is the hottest day ever recorded in Namwon?
The hottest day measured in Namwon between 1940 and 2025 was 23 July 1994, reaching 36.7 °C.
What is the coldest day in Namwon?
The coldest day measured in Namwon between 1940 and 2025 was 18 January 1945, at -23.2 °C.
Does it snow in Namwon?
Yes. Namwon gets on average 30.8 cm of snow per year and has around 111 frost days.
Has the climate of Namwon warmed?
Yes: Namwon warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Namwon?
The wettest day measured in Namwon between 1940 and 2025 was 11 July 1972, with 175 mm of rain in 24 hours.
What was the windiest day in Namwon?
The windiest day measured in Namwon between 1940 and 2025 was 28 August 2012, with winds reaching 44.0 km/h.
What is the warmest month in Namwon?
The warmest month in Namwon is August (24.3 °C on average); the coldest is January (-2.7 °C).
How much does it rain in Namwon?
Namwon receives on average 1,280 mm of precipitation per year, spread over about 115 rainy days.
Is it sunny in Namwon?
Namwon gets on average 8.6 hours of sunshine per day, roughly 3,139 hours per year over 1940-2025.
What is the biggest single-day snowfall in Namwon?
The heaviest 24-hour snowfall measured in Namwon between 1940 and 2025 was 29 January 1965, with 15.4 cm.
Are there tropical nights in Namwon?
Yes: Namwon has on average 48 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Namwon?
In Namwon, between 1940 and 2025, the highest apparent temperature reached 41.5 °C on 7 July 2025, and the lowest was -27.8 °C on 18 January 1945.
Compare Namwon with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Namwon