Hyesan, North Korea climate

Dwb Monsoon-influenced warm-summer humid continental

Hyesan has a strongly seasonal cold-temperate climate (Monsoon-influenced warm-summer humid continental, Köppen Dwb). The hottest month is July with an average daily high near 82°F, while the coldest is January averaging around −10°F at night. Precipitation totals about 22 inches a year and is strongly seasonal — July alone averages 5.3 inches while January barely receives 0.23 inches.

☀️ Summers

Warm

Highs near 82°F in July.

❄️ Winters

Bitterly cold

Lows near −10°F in January.

🌧️ Rain

Moderate rainfall

About 22 in of rain a year.

Wettest in July

⛅ Sky & trend

Partly cloudy

A roughly even mix of sun and cloud.

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figures

Hours of sunshine per day

Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)

Hyesan climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	17	26	40	56	69	77	82	80	71	57	37	20
Avg temp (°F)	4	11	26	42	55	64	71	69	58	43	25	8
Avg low (°F)	−10	−4	13	29	41	52	60	59	44	29	13	−4
Precipitation (in)	0.2	0.4	0.5	1.3	2.3	3.4	5.3	4.6	1.8	1.0	0.8	0.4

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°F)	17	26	40	56	69	77
Avg temp (°F)	4	11	26	42	55	64
Avg low (°F)	−10	−4	13	29	41	52
Precipitation (in)	0.2	0.4	0.5	1.3	2.3	3.4

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°F)	82	80	71	57	37	20
Avg temp (°F)	71	69	58	43	25	8
Avg low (°F)	60	59	44	29	13	−4
Precipitation (in)	5.3	4.6	1.8	1.0	0.8	0.4

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	41	46	54	65	69	73	73	70	59	51	51	44
Relative humidity (%)	89	84	74	65	66	72	79	80	74	72	80	87
Wind speed (mph)	1.9	2.1	2.0	1.3	0.5	0.4	0.3	0.3	0.5	0.5	0.9	1.5

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	41	46	54	65	69	73
Relative humidity (%)	89	84	74	65	66	72
Wind speed (mph)	1.9	2.1	2.0	1.3	0.5	0.4

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	73	70	59	51	51	44
Relative humidity (%)	79	80	74	72	80	87
Wind speed (mph)	0.3	0.3	0.5	0.5	0.9	1.5

Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Hyesan, a weather station, inside the city. The underlying daily records come from NOAA's global station network.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →