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Monthly climate in Jangheung, South Korea

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Jangheung features a humid subtropical climate (Cfa). Temperatures typically range between 1 °C (35 °F) and 27 °C (80 °F) through the year, but rarely can drop to -13 °C (9 °F) or can rise to as high as 36 °C (96 °F). The average annual precipitation amounts to about 1296 mm (51.0 inches) and receives 93 rainy days on the 1 mm (0.04 inches) threshold annually. Jangheung enjoys an average of 3231 hours of sunshine throughout the year, and daylight varies from 9 hours 51 minutes to 14 hours 25 minutes per day.

Monthly average temperatures in Jangheung, South Korea

The warmest months in Jangheung are July, August and September, with daily mean temperatures ranging from 22 to 27 °C (72 - 80 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 1 to 3 °C (35 - 38 °F) throughout the day. On average each year, Jangheung experiences 89 days above 25 °C (77.0 °F) and 67 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Jangheung. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum17°C
(62°F)		21°C
(70°F)		22°C
(72°F)		26°C
(79°F)		30°C
(87°F)		32°C
(89°F)		36°C
(96°F)		36°C
(96°F)		31°C
(87°F)		29°C
(84°F)		23°C
(73°F)		18°C
(64°F)
Mean maximum13°C
(56°F)		16°C
(61°F)		21°C
(70°F)		24°C
(76°F)		28°C
(83°F)		30°C
(86°F)		32°C
(91°F)		34°C
(94°F)		30°C
(85°F)		27°C
(81°F)		21°C
(70°F)		15°C
(59°F)
Average high6°C
(43°F)		8°C
(47°F)		14°C
(57°F)		18°C
(65°F)		23°C
(73°F)		26°C
(79°F)		29°C
(84°F)		30°C
(87°F)		26°C
(78°F)		21°C
(70°F)		15°C
(60°F)		8°C
(47°F)
Daily mean1°C
(35°F)		3°C
(37°F)		8°C
(47°F)		13°C
(56°F)		18°C
(64°F)		22°C
(71°F)		25°C
(78°F)		27°C
(80°F)		22°C
(72°F)		16°C
(61°F)		10°C
(50°F)		3°C
(38°F)
Average low-3°C
(28°F)		-2°C
(29°F)		3°C
(39°F)		8°C
(47°F)		13°C
(56°F)		18°C
(65°F)		23°C
(73°F)		24°C
(75°F)		19°C
(66°F)		12°C
(54°F)		5°C
(41°F)		-1°C
(30°F)
Mean minimum-8°C
(17°F)		-7°C
(20°F)		-3°C
(27°F)		1°C
(34°F)		7°C
(45°F)		14°C
(57°F)		19°C
(67°F)		20°C
(68°F)		13°C
(55°F)		5°C
(41°F)		-1°C
(31°F)		-8°C
(18°F)
Minimum-13°C
(9°F)		-10°C
(14°F)		-4°C
(25°F)		-0°C
(32°F)		5°C
(41°F)		12°C
(54°F)		17°C
(63°F)		18°C
(64°F)		12°C
(53°F)		2°C
(36°F)		-2°C
(28°F)		-12°C
(10°F)

Compare climate in Jangheung with other places

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

Monthly average precipitation in Jangheung, South Korea

Jangheung usually has the most precipitation in July, August and September, with an average of 15 rainy days and 219 mm (8.6 inches) of precipitation per month. The driest months in Jangheung are January, November and December. On average, 28 mm (1.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Jangheung. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)29 (1.2)33 (1.3)76 (3.0)74 (2.9)107 (4.2)168 (6.6)239 (9.4)188 (7.4)229 (9.0)98 (3.9)28 (1.1)26 (1.0)
Average precipitation days (≥ 1 mm)3476710161514434

Monthly sunshine hours in Jangheung, South Korea

The sunniest months in Jangheung are May, June and August, when the sun shines an average of 10 hours 6 minutes a day. Least sunny months in Jangheung: January, February and December receive an average of 7 hours 17 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Jangheung. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours192237275288309307298312264271238233
Mean daily daylight hours10h 6m10h 55m11h 58m13h 3m13h 58m14h 25m14h 11m13h 24m12h 21m11h 17m10h 20m9h 51m

Solar UV radiation in Jangheung, South Korea

Jangheung experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 11 - 12, which corresponds to the Extreme category of sun exposure. January, February and December are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 5. For more detailed information, check out our hourly Jangheung UV Index data.

Average daily maximum UV levels by month for Jangheung. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)45791011121210753