Sinmak climate — normals and trends
Sinmak (North Korea) has a hot-summer humid continental, dry winter climate (Dwa) under the Köppen-Geiger classification. Its mean annual temperature is 10.2 °C and it receives 1,208 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 (-6.3 °C). Rainfall peaks in July.
Sinmak averages 127 frost days, 18 hot days (≥ 30 °C) and 105 rainy days per year.
Sinmak has warmed by +2.4 °C between 1940 and 2025, or +0.28 °C per decade. This trend is statistically significant.
The number of frost days there went from about 137 to 117 per year over the period.
The hottest day of the period reached 36.3 °C (on 1 August 2018) and the coldest -31.4 °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
SinmakNorth Hwanghae
- coords
- 38.42°, 126.23°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.2°C
Average daily high
15.1°C
Average daily low
5.6°C
Annual rainfall
1,208mm
Sunshine / day
8.6h
Mean relative humidity
71%
Average peak wind
14.8km/h
Seasonal range
30.6°C
Frost days (< 0 °C)
127 d/yr
Hot days (≥ 30 °C)
18 d/yr
Rainy days (≥ 1 mm)
105 d/yr
Annual snowfall
35.2 cm
Average feels-like high
13.7 °C
Average feels-like low
3.6 °C
Average peak gust
34.9 km/h
Tropical nights (≥ 20 °C)
44 d/yr
Solar radiation
14.5 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.4 °C
since 1940
+0.3 °C per decade · r² = 0.59 · 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
36.3 °C
1 August 2018
Coldest day
-31.4 °C
7 January 1950
Wettest day
208 mm
2 August 1999
Windiest day
48.2 km/h
7 September 2019
Strongest gust
133.6 km/h
27 August 2020
Hottest feels-like
45.6 °C
1 August 2018
Coldest feels-like
-36.5 °C
7 January 1950
Snowiest day
23.2 cm
23 January 1948
Sunniest day
14.4 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 | 1.5 °C | +2.8 °C | 17 mm | -2 mm |
| Feb | 1.3 °C | -0.7 °C | 8 mm | -14 mm |
| Mar | 11.6 °C | +3.1 °C | 40 mm | +1 mm |
| Apr | 17.0 °C | +0.8 °C | 102 mm | +29 mm |
| May | 21.1 °C | -0.9 °C | 104 mm | +10 mm |
| Jun | 26.7 °C | +1.0 °C | 165 mm | +38 mm |
| Jul | 30.3 °C | +2.7 °C | 114 mm | -209 mm |
| Aug | 30.3 °C | +2.0 °C | 174 mm | -86 mm |
| Sep | 26.1 °C | +1.9 °C | 243 mm | +112 mm |
| Oct | 18.5 °C | +0.7 °C | 183 mm | +132 mm |
| Nov | 11.8 °C | +2.5 °C | 24 mm | -22 mm |
| Dec | 2.2 °C | +0.9 °C | 31 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 Sinmak?
Sinmak has a hot-summer humid continental, dry winter climate (Köppen Dwa). Over 1940-2025, the average annual temperature is 10.2 °C and it receives 1,208 mm of precipitation per year.
What is the hottest day ever recorded in Sinmak?
The hottest day measured in Sinmak between 1940 and 2025 was 1 August 2018, reaching 36.3 °C.
What is the coldest day in Sinmak?
The coldest day measured in Sinmak between 1940 and 2025 was 7 January 1950, at -31.4 °C.
Does it snow in Sinmak?
Yes. Sinmak gets on average 35.2 cm of snow per year and has around 127 frost days.
Has the climate of Sinmak warmed?
Yes: Sinmak warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Sinmak?
The wettest day measured in Sinmak between 1940 and 2025 was 2 August 1999, with 208 mm of rain in 24 hours.
What was the windiest day in Sinmak?
The windiest day measured in Sinmak between 1940 and 2025 was 7 September 2019, with winds reaching 48.2 km/h.
What is the warmest month in Sinmak?
The warmest month in Sinmak is August (24.3 °C on average); the coldest is January (-6.3 °C).
How much does it rain in Sinmak?
Sinmak receives on average 1,208 mm of precipitation per year, spread over about 105 rainy days.
Is it sunny in Sinmak?
Sinmak 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 Sinmak?
The heaviest 24-hour snowfall measured in Sinmak between 1940 and 2025 was 23 January 1948, with 23.2 cm.
Are there tropical nights in Sinmak?
Yes: Sinmak has on average 44 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Sinmak?
In Sinmak, between 1940 and 2025, the highest apparent temperature reached 45.6 °C on 1 August 2018, and the lowest was -36.5 °C on 7 January 1950.
Compare Sinmak with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Sinmak