Donghae City climate — normals and trends
Donghae City (South Korea) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 10.7 °C and it receives 1,187 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 (23.6 °C on average) and the coldest is January (-3.5 °C). Rainfall peaks in August.
Donghae City averages 104 frost days, 13 hot days (≥ 30 °C) and 110 rainy days per year.
Donghae City 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 118 to 90 per year over the period.
The hottest day of the period reached 35.3 °C (on 17 June 1962) and the coldest -23.2 °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
Donghae CityGangwon-do
- coords
- 37.54°, 129.11°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.7°C
Average daily high
14.8°C
Average daily low
6.9°C
Annual rainfall
1,187mm
Sunshine / day
9.0h
Mean relative humidity
70%
Average peak wind
14.7km/h
Seasonal range
27.1°C
Frost days (< 0 °C)
104 d/yr
Hot days (≥ 30 °C)
13 d/yr
Rainy days (≥ 1 mm)
110 d/yr
Annual snowfall
88.7 cm
Average feels-like high
13.7 °C
Average feels-like low
4.7 °C
Average peak gust
40.2 km/h
Tropical nights (≥ 20 °C)
41 d/yr
Solar radiation
15.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.3 °C
since 1940
+0.3 °C per decade · r² = 0.56 · 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
35.3 °C
17 June 1962
Coldest day
-23.2 °C
16 January 1967
Wettest day
174 mm
31 August 2002
Windiest day
54.2 km/h
27 April 1983
Strongest gust
142.9 km/h
18 April 1946
Hottest feels-like
40.7 °C
3 August 1956
Coldest feels-like
-29.2 °C
31 January 1941
Snowiest day
47.4 cm
28 February 1956
Sunniest day
14.3 h
24 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 | 2.9 °C | +1.9 °C | 13 mm | -30 mm |
| Feb | 3.5 °C | +0.7 °C | 5 mm | -46 mm |
| Mar | 9.6 °C | +1.6 °C | 108 mm | +38 mm |
| Apr | 17.0 °C | +1.7 °C | 47 mm | -25 mm |
| May | 20.0 °C | -0.4 °C | 59 mm | -14 mm |
| Jun | 26.4 °C | +3.2 °C | 63 mm | -51 mm |
| Jul | 29.9 °C | +3.7 °C | 119 mm | -79 mm |
| Aug | 29.9 °C | +3.1 °C | 110 mm | -90 mm |
| Sep | 24.6 °C | +2.4 °C | 249 mm | +66 mm |
| Oct | 17.2 °C | -0.1 °C | 349 mm | +264 mm |
| Nov | 13.0 °C | +2.2 °C | 18 mm | -43 mm |
| Dec | 5.7 °C | +1.7 °C | 22 mm | -15 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 Donghae City?
Donghae City has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 10.7 °C and it receives 1,187 mm of precipitation per year.
What is the hottest day ever recorded in Donghae City?
The hottest day measured in Donghae City between 1940 and 2025 was 17 June 1962, reaching 35.3 °C.
What is the coldest day in Donghae City?
The coldest day measured in Donghae City between 1940 and 2025 was 16 January 1967, at -23.2 °C.
Does it snow in Donghae City?
Yes. Donghae City gets on average 88.7 cm of snow per year and has around 104 frost days.
Has the climate of Donghae City warmed?
Yes: Donghae City warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Donghae City?
The wettest day measured in Donghae City between 1940 and 2025 was 31 August 2002, with 174 mm of rain in 24 hours.
What was the windiest day in Donghae City?
The windiest day measured in Donghae City between 1940 and 2025 was 27 April 1983, with winds reaching 54.2 km/h.
What is the warmest month in Donghae City?
The warmest month in Donghae City is August (23.6 °C on average); the coldest is January (-3.5 °C).
How much does it rain in Donghae City?
Donghae City receives on average 1,187 mm of precipitation per year, spread over about 110 rainy days.
Is it sunny in Donghae City?
Donghae City gets on average 9.0 hours of sunshine per day, roughly 3,285 hours per year over 1940-2025.
What is the biggest single-day snowfall in Donghae City?
The heaviest 24-hour snowfall measured in Donghae City between 1940 and 2025 was 28 February 1956, with 47.4 cm.
Are there tropical nights in Donghae City?
Yes: Donghae City has on average 41 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Donghae City?
In Donghae City, between 1940 and 2025, the highest apparent temperature reached 40.7 °C on 3 August 1956, and the lowest was -29.2 °C on 31 January 1941.
Compare Donghae City with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Donghae City