Hŭngnam climate

Name: Hŭngnam
Address: KP

Hŭngnam is warmest in August, with average highs of 26 °C, and coldest in January, when nights average -7.9 °C. August is the wettest month (231 mm) and February the driest (28 mm). Figures are 1991–2020 climate normals.

Across a full year Hŭngnam averages 1,075 mm of rain, 42 days above 25 °C and 111 days below freezing.

North Korea · population 346,082 · 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 26 °C
Coldest month January -7.9 °C
Driest month February 28 mm
Wettest month August 231 mm
Least cloud December 37 % cloud
Hottest on record August 38 °C
Coldest on record February -18 °C
Warmest sea August 24 °C

What to expectHŭngnam through the year

Hŭngnam has a clear annual cycle: average daily highs run from 0.06 °C in January to 26 °C in August, a swing of 27 °C in mean temperature across the year.

Counted across a normal year, 42 days a year reach 25 °C, 6 of them reach 30 °C, 111 nights drop below freezing. The warmest reading in the 1991–2020 record is 38 °C, in August.

Rain is strongly seasonal. August averages 231 mm against 28 mm in February — 8.1 times as much. Planning around the dry months matters more here than planning around temperature.

The sea off Hŭngnam is warmest in August at 24 °C and coldest in February at 4.0 °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	0.1 °C	32 mm	40 %
February	2.0 °C	28 mm	40 %
March	7.0 °C	33 mm	44 %
April	13.2 °C	56 mm	48 %
May	18.3 °C	87 mm	55 %
June	21.9 °C	100 mm	64 %
July	25.1 °C	215 mm	70 %
August	25.6 °C	231 mm	67 %
September	21.9 °C	124 mm	55 %
October	16.6 °C	65 mm	42 %
November	9.1 °C	68 mm	42 %
December	2.5 °C	36 mm	37 %

Temperature month by month

Month	Avg high	Avg low	Mean	Record high	Record low	Days above 25 °C	Days above 30 °C	Days below 0 °C
January	0.1 °C	-7.9 °C	-3.8 °C	9.0 °C	-17.8 °C	0	0	31
February	2.0 °C	-6.1 °C	-1.9 °C	14.5 °C	-17.9 °C	0	0	26
March	7.0 °C	-0.8 °C	3.0 °C	21.7 °C	-11.5 °C	0	0	18
April	13.2 °C	5.0 °C	9.1 °C	27.3 °C	-2.6 °C	0	0	2
May	18.3 °C	10.9 °C	14.5 °C	32.0 °C	3.4 °C	2	0	0
June	21.9 °C	16.1 °C	18.9 °C	33.9 °C	10.5 °C	6	1	0
July	25.1 °C	20.4 °C	22.6 °C	34.6 °C	13.9 °C	14	3	0
August	25.6 °C	20.9 °C	23.2 °C	37.6 °C	12.1 °C	17	2	0
September	21.9 °C	16.0 °C	19.0 °C	30.4 °C	8.0 °C	3	0	0
October	16.6 °C	9.6 °C	13.0 °C	24.6 °C	-0.8 °C	0	0	0
November	9.1 °C	2.4 °C	5.7 °C	19.7 °C	-11.7 °C	0	0	8
December	2.5 °C	-4.6 °C	-1.0 °C	12.8 °C	-16.4 °C	0	0	26

Rain, sun and wind month by month

Month	Rainfall	Wet days	Daylight	Cloud cover	Humidity	Wind	Sea temp
January	32 mm	6	9.7 h/day	40 %	65 %	20 km/h	5.3 °C
February	28 mm	5	11 h/day	40 %	66 %	20 km/h	4.0 °C
March	33 mm	6	12 h/day	44 %	66 %	21 km/h	4.5 °C
April	56 mm	6	13 h/day	48 %	67 %	21 km/h	7.7 °C
May	87 mm	8	14 h/day	55 %	73 %	19 km/h	12.4 °C
June	100 mm	9	15 h/day	64 %	81 %	17 km/h	17.5 °C
July	215 mm	14	15 h/day	70 %	84 %	17 km/h	21.6 °C
August	231 mm	14	14 h/day	67 %	84 %	16 km/h	23.8 °C
September	124 mm	9	12 h/day	55 %	78 %	16 km/h	21.7 °C
October	65 mm	7	11 h/day	42 %	70 %	18 km/h	17.7 °C
November	68 mm	8	10.0 h/day	42 %	65 %	20 km/h	12.7 °C
December	36 mm	5	9.4 h/day	37 %	62 %	20 km/h	8.1 °C

How Hŭngnam 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
Hŭngnam	26 °C	-7.9 °C	1,075 mm	42
Hamhŭng · North Korea	26 °C	-11 °C	1,131 mm	52
Sinp’o · North Korea	25 °C	-7.4 °C	872 mm	29
Wŏnsan · North Korea	27 °C	-7.9 °C	1,274 mm	65
Tŏkch’ŏn · North Korea	27 °C	-15 °C	1,409 mm	75
Changam-ch’on · North Korea	26 °C	-12 °C	836 mm	59
Kaech’ŏn · North Korea	28 °C	-13 °C	1,290 mm	90

Where Hŭngnam ranks

Ranking	Position	Value
The coolest places in Asia in June	25thof 50	22 °C
The coolest places in Asia in May	26thof 50	18 °C

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

QuestionsCommon questions about Hŭngnam’s climate

When is the best time to visit Hŭngnam?

That depends on what you want, so the honest answer is a comparison rather than a single month. June, July, 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 Hŭngnam get?

In August, the warmest month, daily highs average 26 °C. About 6 days a year pass 30 °C. The highest value in the 1991–2020 record is 38 °C.

How cold does it get in winter?

Nights average -7.9 °C in January, the coldest month. A normal year has 111 nights below freezing.

Which month is wettest in Hŭngnam?

August, averaging 231 mm over 14 days with rain. The driest month is February with 28 mm. The year as a whole averages 1,075 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 Hŭngnam 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
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.