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Monthly climate in Onsong, North Korea

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Onsong features a humid continental climate (Dwb). Temperatures typically range between -12 °C (11 °F) and 21 °C (71 °F) through the year, but rarely can drop to -26 °C (-15 °F) or can rise to as high as 35 °C (95 °F). The average annual precipitation amounts to about 702 mm (27.6 inches) and receives 90 rainy days on the 1 mm (0.04 inches) threshold annually. Onsong enjoys an average of 3180 hours of sunshine throughout the year, and daylight varies from 9 hours 3 minutes to 15 hours 16 minutes per day.

Monthly average temperatures in Onsong, North Korea

The warmest months in Onsong are June, July and August, with daily mean temperatures ranging from 17 to 21 °C (63 - 71 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -12 to -9 °C (11 - 17 °F) throughout the day. On average each year, Onsong experiences 43 days above 25 °C (77.0 °F) and 156 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Onsong. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum3°C
(37°F)		8°C
(47°F)		23°C
(73°F)		30°C
(86°F)		35°C
(95°F)		33°C
(91°F)		34°C
(94°F)		35°C
(95°F)		28°C
(82°F)		27°C
(81°F)		16°C
(61°F)		5°C
(42°F)
Mean maximum1°C
(33°F)		6°C
(43°F)		16°C
(60°F)		25°C
(76°F)		31°C
(87°F)		28°C
(83°F)		33°C
(91°F)		32°C
(90°F)		26°C
(79°F)		23°C
(73°F)		15°C
(58°F)		3°C
(38°F)
Average high-7°C
(21°F)		-3°C
(27°F)		6°C
(43°F)		14°C
(57°F)		19°C
(67°F)		22°C
(72°F)		26°C
(79°F)		25°C
(77°F)		21°C
(71°F)		14°C
(58°F)		4°C
(39°F)		-5°C
(23°F)
Daily mean-12°C
(11°F)		-9°C
(17°F)		0°C
(33°F)		7°C
(45°F)		13°C
(56°F)		17°C
(63°F)		21°C
(71°F)		21°C
(70°F)		16°C
(60°F)		8°C
(46°F)		-1°C
(30°F)		-10°C
(14°F)
Average low-16°C
(3°F)		-14°C
(8°F)		-5°C
(23°F)		1°C
(34°F)		7°C
(45°F)		12°C
(55°F)		18°C
(64°F)		18°C
(64°F)		10°C
(51°F)		2°C
(36°F)		-6°C
(22°F)		-14°C
(7°F)
Mean minimum-22°C
(-7°F)		-20°C
(-4°F)		-13°C
(9°F)		-4°C
(25°F)		2°C
(35°F)		9°C
(48°F)		12°C
(55°F)		11°C
(52°F)		4°C
(40°F)		-4°C
(24°F)		-13°C
(8°F)		-22°C
(-7°F)
Minimum-26°C
(-15°F)		-22°C
(-7°F)		-23°C
(-8°F)		-5°C
(24°F)		1°C
(33°F)		7°C
(45°F)		11°C
(52°F)		5°C
(42°F)		0°C
(33°F)		-6°C
(22°F)		-16°C
(4°F)		-26°C
(-15°F)

Compare climate in Onsong with other places

Compare temperature, precipitation, sunshine, UV index in Onsong, North Korea with other places around the world.

Monthly average precipitation in Onsong, North Korea

Onsong usually has the most precipitation in June, July and August, with an average of 14 rainy days and 125 mm (4.9 inches) of precipitation per month. The driest months in Onsong are January, February and December. On average, 10 mm (0.4 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Onsong. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)7 (0.3)13 (0.5)30 (1.2)30 (1.2)83 (3.3)85 (3.4)96 (3.8)194 (7.6)81 (3.2)36 (1.4)38 (1.5)10 (0.4)
Average precipitation days (≥ 1 mm)13571213121710541

Monthly sunshine hours in Onsong, North Korea

The sunniest months in Onsong are May, June and July, when the sun shines an average of 10 hours 0 minutes a day. Least sunny months in Onsong: January, November and December receive an average of 7 hours 3 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Onsong. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours192232280288305304311267278261226230
Mean daily daylight hours9h 23m10h 30m11h 56m13h 24m14h 38m15h 16m14h 57m13h 51m12h 27m11h 0m9h 43m9h 3m

Solar UV radiation in Onsong, North Korea

Onsong experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High category of sun exposure. January, February and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Onsong UV Index data.

Average daily maximum UV levels by month for Onsong. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)23578910108532