Sariwon climate — normals and trends
Sariwon (North Korea) has a hot-summer humid continental, dry winter climate (Dwa) under the Köppen-Geiger classification. Its mean annual temperature is 10.8 °C and it receives 1,002 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 (24.9 °C on average) and the coldest is January (-5.2 °C). Rainfall peaks in July.
Sariwon averages 121 frost days, 23 hot days (≥ 30 °C) and 95 rainy days per year.
Sariwon has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The number of frost days there went from about 131 to 111 per year over the period.
The hottest day of the period reached 37.2 °C (on 29 June 1999) and the coldest -28.0 °C (on 7 January 1950).
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
SariwonNorth Hwanghae
- coords
- 38.51°, 125.76°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.8°C
Average daily high
15.6°C
Average daily low
6.5°C
Annual rainfall
1,002mm
Sunshine / day
8.8h
Mean relative humidity
71%
Average peak wind
15.6km/h
Seasonal range
30.1°C
Frost days (< 0 °C)
121 d/yr
Hot days (≥ 30 °C)
23 d/yr
Rainy days (≥ 1 mm)
95 d/yr
Annual snowfall
27.5 cm
Average feels-like high
14.3 °C
Average feels-like low
4.7 °C
Average peak gust
34.5 km/h
Tropical nights (≥ 20 °C)
53 d/yr
Solar radiation
14.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.57 · 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
37.2 °C
29 June 1999
Coldest day
-28.0 °C
7 January 1950
Wettest day
200 mm
7 September 1962
Windiest day
54.8 km/h
27 August 2020
Strongest gust
127.1 km/h
27 August 2020
Hottest feels-like
45.5 °C
1 August 2018
Coldest feels-like
-33.2 °C
7 January 1950
Snowiest day
21.5 cm
23 January 1948
Sunniest day
14.3 h
27 June 1951
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 | 2.1 °C | +2.8 °C | 13 mm | -4 mm |
| Feb | 1.6 °C | -0.6 °C | 8 mm | -10 mm |
| Mar | 11.9 °C | +3.2 °C | 35 mm | +3 mm |
| Apr | 16.9 °C | +0.5 °C | 88 mm | +28 mm |
| May | 21.5 °C | -0.9 °C | 90 mm | +13 mm |
| Jun | 27.3 °C | +1.0 °C | 143 mm | +41 mm |
| Jul | 31.0 °C | +2.8 °C | 76 mm | -183 mm |
| Aug | 30.8 °C | +2.1 °C | 177 mm | -38 mm |
| Sep | 26.6 °C | +2.0 °C | 223 mm | +110 mm |
| Oct | 18.9 °C | +0.6 °C | 139 mm | +95 mm |
| Nov | 12.4 °C | +2.4 °C | 20 mm | -22 mm |
| Dec | 2.9 °C | +0.8 °C | 24 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 Sariwon?
Sariwon has a hot-summer humid continental, dry winter climate (Köppen Dwa). Over 1940-2025, the average annual temperature is 10.8 °C and it receives 1,002 mm of precipitation per year.
What is the hottest day ever recorded in Sariwon?
The hottest day measured in Sariwon between 1940 and 2025 was 29 June 1999, reaching 37.2 °C.
What is the coldest day in Sariwon?
The coldest day measured in Sariwon between 1940 and 2025 was 7 January 1950, at -28.0 °C.
Does it snow in Sariwon?
Yes. Sariwon gets on average 27.5 cm of snow per year and has around 121 frost days.
Has the climate of Sariwon warmed?
Yes: Sariwon warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sariwon?
The wettest day measured in Sariwon between 1940 and 2025 was 7 September 1962, with 200 mm of rain in 24 hours.
What was the windiest day in Sariwon?
The windiest day measured in Sariwon between 1940 and 2025 was 27 August 2020, with winds reaching 54.8 km/h.
What is the warmest month in Sariwon?
The warmest month in Sariwon is August (24.9 °C on average); the coldest is January (-5.2 °C).
How much does it rain in Sariwon?
Sariwon receives on average 1,002 mm of precipitation per year, spread over about 95 rainy days.
Is it sunny in Sariwon?
Sariwon gets on average 8.8 hours of sunshine per day, roughly 3,212 hours per year over 1940-2025.
What is the biggest single-day snowfall in Sariwon?
The heaviest 24-hour snowfall measured in Sariwon between 1940 and 2025 was 23 January 1948, with 21.5 cm.
Are there tropical nights in Sariwon?
Yes: Sariwon has on average 53 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Sariwon?
In Sariwon, between 1940 and 2025, the highest apparent temperature reached 45.5 °C on 1 August 2018, and the lowest was -33.2 °C on 7 January 1950.
Compare Sariwon with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sariwon