Gumi climate — normals and trends
Gumi (South Korea) has a hot-summer humid continental, dry winter climate (Dwa) under the Köppen-Geiger classification. Its mean annual temperature is 12.6 °C and it receives 1,107 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 (25.7 °C on average) and the coldest is January (-1.4 °C). Rainfall peaks in July.
Gumi averages 103 frost days, 40 hot days (≥ 30 °C) and 95 rainy days per year.
Gumi has warmed by +2.6 °C between 1940 and 2025, or +0.30 °C per decade. This trend is statistically significant.
The number of frost days there went from about 119 to 87 per year over the period.
The hottest day of the period reached 38.7 °C (on 14 August 1995) and the coldest -20.0 °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
GumiGyeongsangbuk-do
- coords
- 36.11°, 128.34°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
12.6°C
Average daily high
17.8°C
Average daily low
8.0°C
Annual rainfall
1,107mm
Sunshine / day
8.5h
Mean relative humidity
68%
Average peak wind
13.0km/h
Seasonal range
27.1°C
Frost days (< 0 °C)
103 d/yr
Hot days (≥ 30 °C)
40 d/yr
Rainy days (≥ 1 mm)
95 d/yr
Annual snowfall
17.1 cm
Average feels-like high
16.8 °C
Average feels-like low
6.7 °C
Average peak gust
33.8 km/h
Tropical nights (≥ 20 °C)
58 d/yr
Solar radiation
14.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.6 °C
since 1940
+0.3 °C per decade · r² = 0.69 · 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
38.7 °C
14 August 1995
Coldest day
-20.0 °C
16 January 1967
Wettest day
188 mm
30 September 1998
Windiest day
45.7 km/h
31 August 1987
Strongest gust
141.5 km/h
16 July 1987
Hottest feels-like
44.5 °C
28 July 1953
Coldest feels-like
-25.3 °C
16 January 1967
Snowiest day
16.7 cm
8 March 2018
Sunniest day
14.0 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 | 5.7 °C | +2.2 °C | 8 mm | -17 mm |
| Feb | 5.5 °C | -0.6 °C | 15 mm | -16 mm |
| Mar | 14.6 °C | +2.7 °C | 56 mm | -0 mm |
| Apr | 21.4 °C | +2.7 °C | 61 mm | -18 mm |
| May | 23.4 °C | -0.4 °C | 96 mm | +7 mm |
| Jun | 29.6 °C | +2.6 °C | 205 mm | +66 mm |
| Jul | 32.5 °C | +3.4 °C | 145 mm | -91 mm |
| Aug | 33.3 °C | +3.4 °C | 85 mm | -98 mm |
| Sep | 28.0 °C | +2.8 °C | 150 mm | +0 mm |
| Oct | 20.6 °C | +0.7 °C | 173 mm | +120 mm |
| Nov | 15.2 °C | +2.3 °C | 12 mm | -30 mm |
| Dec | 7.7 °C | +1.7 °C | 22 mm | -1 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 Gumi?
Gumi has a hot-summer humid continental, dry winter climate (Köppen Dwa). Over 1940-2025, the average annual temperature is 12.6 °C and it receives 1,107 mm of precipitation per year.
What is the hottest day ever recorded in Gumi?
The hottest day measured in Gumi between 1940 and 2025 was 14 August 1995, reaching 38.7 °C.
What is the coldest day in Gumi?
The coldest day measured in Gumi between 1940 and 2025 was 16 January 1967, at -20.0 °C.
Does it snow in Gumi?
Yes. Gumi gets on average 17.1 cm of snow per year and has around 103 frost days.
Has the climate of Gumi warmed?
Yes: Gumi warmed by +2.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Gumi?
The wettest day measured in Gumi between 1940 and 2025 was 30 September 1998, with 188 mm of rain in 24 hours.
What was the windiest day in Gumi?
The windiest day measured in Gumi between 1940 and 2025 was 31 August 1987, with winds reaching 45.7 km/h.
What is the warmest month in Gumi?
The warmest month in Gumi is August (25.7 °C on average); the coldest is January (-1.4 °C).
How much does it rain in Gumi?
Gumi receives on average 1,107 mm of precipitation per year, spread over about 95 rainy days.
Is it sunny in Gumi?
Gumi gets on average 8.5 hours of sunshine per day, roughly 3,103 hours per year over 1940-2025.
What is the biggest single-day snowfall in Gumi?
The heaviest 24-hour snowfall measured in Gumi between 1940 and 2025 was 8 March 2018, with 16.7 cm.
Are there tropical nights in Gumi?
Yes: Gumi has on average 58 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Gumi?
In Gumi, between 1940 and 2025, the highest apparent temperature reached 44.5 °C on 28 July 1953, and the lowest was -25.3 °C on 16 January 1967.
Compare Gumi with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Gumi