Hamhung climate — normals and trends
Hamhung (North Korea) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 8.9 °C and it receives 1,216 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 (22.8 °C on average) and the coldest is January (-6.8 °C). Rainfall peaks in July.
Hamhung averages 133 frost days, 10 hot days (≥ 30 °C) and 118 rainy days per year.
Hamhung 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 144 to 122 per year over the period.
The hottest day of the period reached 36.9 °C (on 4 August 2018) and the coldest -24.4 °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
HamhungSouth Hamgyong
- coords
- 39.92°, 127.54°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
8.9°C
Average daily high
13.6°C
Average daily low
4.6°C
Annual rainfall
1,216mm
Sunshine / day
9.0h
Mean relative humidity
71%
Average peak wind
12.7km/h
Seasonal range
29.6°C
Frost days (< 0 °C)
133 d/yr
Hot days (≥ 30 °C)
10 d/yr
Rainy days (≥ 1 mm)
118 d/yr
Annual snowfall
117.2 cm
Average feels-like high
12.4 °C
Average feels-like low
2.3 °C
Average peak gust
31.5 km/h
Tropical nights (≥ 20 °C)
27 d/yr
Solar radiation
15.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.7 °C
since 1940
+0.3 °C per decade · r² = 0.70 · 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
36.9 °C
4 August 2018
Coldest day
-24.4 °C
25 January 1941
Wettest day
146 mm
17 August 1979
Windiest day
38.3 km/h
7 September 2019
Strongest gust
107.3 km/h
28 August 2012
Hottest feels-like
42.4 °C
4 August 2018
Coldest feels-like
-30.5 °C
25 January 1941
Snowiest day
40.3 cm
10 March 1995
Sunniest day
14.8 h
22 June 1961
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 | 1.7 °C | +2.8 °C | 44 mm | +4 mm |
| Feb | 2.4 °C | +1.4 °C | 3 mm | -38 mm |
| Mar | 8.8 °C | +2.6 °C | 59 mm | +10 mm |
| Apr | 15.2 °C | +1.2 °C | 91 mm | +27 mm |
| May | 19.8 °C | 0.0 °C | 94 mm | +13 mm |
| Jun | 26.4 °C | +3.6 °C | 175 mm | +59 mm |
| Jul | 29.5 °C | +3.8 °C | 134 mm | -119 mm |
| Aug | 28.8 °C | +2.5 °C | 198 mm | -56 mm |
| Sep | 24.4 °C | +2.2 °C | 182 mm | +50 mm |
| Oct | 16.5 °C | -0.2 °C | 210 mm | +138 mm |
| Nov | 11.1 °C | +2.4 °C | 27 mm | -45 mm |
| Dec | 2.3 °C | +0.9 °C | 52 mm | +9 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 Hamhung?
Hamhung has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 8.9 °C and it receives 1,216 mm of precipitation per year.
What is the hottest day ever recorded in Hamhung?
The hottest day measured in Hamhung between 1940 and 2025 was 4 August 2018, reaching 36.9 °C.
What is the coldest day in Hamhung?
The coldest day measured in Hamhung between 1940 and 2025 was 25 January 1941, at -24.4 °C.
Does it snow in Hamhung?
Yes. Hamhung gets on average 117.2 cm of snow per year and has around 133 frost days.
Has the climate of Hamhung warmed?
Yes: Hamhung warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Hamhung?
The wettest day measured in Hamhung between 1940 and 2025 was 17 August 1979, with 146 mm of rain in 24 hours.
What was the windiest day in Hamhung?
The windiest day measured in Hamhung between 1940 and 2025 was 7 September 2019, with winds reaching 38.3 km/h.
What is the warmest month in Hamhung?
The warmest month in Hamhung is August (22.8 °C on average); the coldest is January (-6.8 °C).
How much does it rain in Hamhung?
Hamhung receives on average 1,216 mm of precipitation per year, spread over about 118 rainy days.
Is it sunny in Hamhung?
Hamhung 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 Hamhung?
The heaviest 24-hour snowfall measured in Hamhung between 1940 and 2025 was 10 March 1995, with 40.3 cm.
Are there tropical nights in Hamhung?
Yes: Hamhung has on average 27 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Hamhung?
In Hamhung, between 1940 and 2025, the highest apparent temperature reached 42.4 °C on 4 August 2018, and the lowest was -30.5 °C on 25 January 1941.
Compare Hamhung with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Hamhung