Chongjin climate

Name: Chongjin
Address: KP

Chongjin is warmest in August, with average highs of 24 °C, and coldest in January, when nights average -12 °C. August is the wettest month (208 mm) and February the driest (26 mm). Figures are 1991–2020 climate normals.

Across a full year Chongjin averages 1,021 mm of rain, 18 days above 25 °C and 138 days below freezing.

North Korea · population 327,000 · 1991–2020 normals

Temperature below 0 °C to above 30 °C Rain band height is that month’s share of the wettest month

Warmest month August 24 °C
Coldest month January -12 °C
Driest month February 26 mm
Wettest month August 208 mm
Least cloud February 40 % cloud
Hottest on record July 32 °C
Coldest on record February -27 °C
Warmest sea August 22 °C

What to expectChongjin through the year

Chongjin has a clear annual cycle: average daily highs run from -4.0 °C in January to 24 °C in August, a swing of 30 °C in mean temperature across the year.

Counted across a normal year, 18 days a year reach 25 °C, 0 of them reach 30 °C, 138 nights drop below freezing. The warmest reading in the 1991–2020 record is 32 °C, in July.

Rain is strongly seasonal. August averages 208 mm against 26 mm in February — 8.0 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Chongjin is warmest in August at 22 °C and coldest in February at 3.0 °C. Sea temperature lags the air by a month or two, which is why late summer swims warmer than early summer at the same air temperature.

Month by month

Month	Avg high	Rainfall	Cloud
January	-4.0 °C	38 mm	42 %
February	-1.7 °C	26 mm	40 %
March	3.6 °C	33 mm	43 %
April	10.4 °C	51 mm	52 %
May	15.2 °C	91 mm	63 %
June	18.9 °C	104 mm	72 %
July	22.5 °C	190 mm	77 %
August	23.8 °C	208 mm	70 %
September	20.4 °C	112 mm	52 %
October	14.5 °C	56 mm	41 %
November	6.2 °C	59 mm	43 %
December	-1.3 °C	51 mm	44 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days below 0 °C
January	-4.0 °C	-12.2 °C	-7.9 °C	4.3 °C	-22.4 °C	0	31
February	-1.7 °C	-9.9 °C	-5.7 °C	9.0 °C	-26.9 °C	0	28
March	3.6 °C	-4.3 °C	-0.3 °C	18.0 °C	-15.6 °C	0	27
April	10.4 °C	2.3 °C	6.4 °C	23.4 °C	-6.5 °C	0	7
May	15.2 °C	8.3 °C	11.8 °C	26.3 °C	0.4 °C	0	0
June	18.9 °C	13.6 °C	16.3 °C	27.8 °C	7.4 °C	1	0
July	22.5 °C	18.3 °C	20.3 °C	31.6 °C	11.1 °C	7	0
August	23.8 °C	19.4 °C	21.6 °C	31.0 °C	11.0 °C	9	0
September	20.4 °C	14.4 °C	17.5 °C	28.5 °C	5.5 °C	1	0
October	14.5 °C	7.5 °C	11.0 °C	22.1 °C	-3.0 °C	0	1
November	6.2 °C	-0.4 °C	2.9 °C	17.5 °C	-13.7 °C	0	15
December	-1.3 °C	-8.4 °C	-4.7 °C	9.9 °C	-21.7 °C	0	30

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	38 mm	8	9.5 h/day	42 %	66 %	16 km/h	4.3 °C
February	26 mm	6	11 h/day	40 %	67 %	17 km/h	3.0 °C
March	33 mm	6	12 h/day	43 %	68 %	17 km/h	3.2 °C
April	51 mm	9	13 h/day	52 %	72 %	16 km/h	5.5 °C
May	91 mm	13	15 h/day	63 %	80 %	14 km/h	9.0 °C
June	104 mm	13	15 h/day	72 %	88 %	12 km/h	14.0 °C
July	190 mm	17	15 h/day	77 %	90 %	12 km/h	19.0 °C
August	208 mm	18	14 h/day	70 %	87 %	12 km/h	21.8 °C
September	112 mm	11	13 h/day	52 %	79 %	14 km/h	19.7 °C
October	56 mm	9	11 h/day	41 %	70 %	16 km/h	16.1 °C
November	59 mm	9	9.8 h/day	43 %	65 %	17 km/h	11.7 °C
December	51 mm	10	9.2 h/day	44 %	66 %	17 km/h	7.4 °C

How Chongjin compares

The same four figures for nearby destinations, so the numbers above have something to be read against. Summer high is the warmest month's average high; winter low is the coldest month's average low.

Destination	Summer high	Winter low	Rain per year	Days above 25 °C
Chongjin	24 °C	-12 °C	1,021 mm	18
Yanji · China	26 °C	-18 °C	670 mm	66
Hyesan · North Korea	25 °C	-22 °C	774 mm	40
Changam-ch’on · North Korea	26 °C	-12 °C	836 mm	59
Vladivostok · Russia	22 °C	-13 °C	694 mm	4
Sinp’o · North Korea	25 °C	-7.4 °C	872 mm	29

Where Chongjin ranks

Ranking	Position	Value
The coolest places in Asia in June	7th of 50	19 °C
The coolest places in Asia in May	7th of 50	15 °C
The coolest places in Asia in July	14th of 50	23 °C
The coolest places in Asia in April	16th of 50	10 °C
The coolest places in Asia in August	36th of 50	24 °C
The coolest places in Asia year-round	36th of 50	11 °C

Planning a trip? See the best time to visit Chongjin.

QuestionsCommon questions about Chongjin’s climate

When is the best time to visit Chongjin?

That depends on what you want, so the honest answer is a comparison rather than a single month. July, August, September sit closest to 20 °C on average, August is the warmest month and February the driest. The month-by-month table above has the full picture.

How hot does Chongjin get?

In August, the warmest month, daily highs average 24 °C. About 0 days a year pass 30 °C. The highest value in the 1991–2020 record is 32 °C.

How cold does it get in winter?

Nights average -12 °C in January, the coldest month. A normal year has 138 nights below freezing.

Which month is wettest in Chongjin?

August, averaging 208 mm over 18 days with rain. The driest month is February with 26 mm. The year as a whole averages 1,021 mm.

Are these figures a forecast?

No. They are 1991–2020 climate normals: the average of thirty years, which describes what a month is usually like in Chongjin rather than what any particular week will bring. Individual years can differ substantially from the normal.

Data sources and method

ERA5 / ERA5-Land reanalysis — Copernicus Climate Change Service (C3S), ECMWF. Copernicus Licence
Open-Meteo — Open-Meteo.com. CC BY 4.0
NOAA OISST v2.1 — NOAA Physical Sciences Laboratory. Public domain
GeoNames — GeoNames.org. CC BY 4.0

Normal period: 1991–2020
Data point: 41.796°, 129.776° (the coordinates the reanalysis values are taken for)
Dataset version: era5-1991-2020-scores1.1
Last processed: 1 August 2026

Measured values come from ERA5 reanalysis and are reproduced unchanged. Calculated by us: monthly rankings, daylight hours, beach and comfort scores. Full formulas are on the methodology page.

Contains modified Copernicus Climate Change Service information 2026. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.