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Monthly climate in Masan, South Korea

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Masan features a humid subtropical climate (Cfa). Temperatures typically range between 1 °C (34 °F) and 27 °C (81 °F) through the year, but rarely can drop to -19 °C (-2 °F) or can rise to as high as 37 °C (99 °F). The average annual precipitation amounts to about 1221 mm (48.1 inches) and receives 101 rainy days on the 1 mm (0.04 inches) threshold annually. Masan enjoys an average of 3191 hours of sunshine throughout the year, and daylight varies from 9 hours 48 minutes to 14 hours 28 minutes per day.

Monthly average temperatures in Masan, South Korea

The warmest months in Masan are June, July and August, with daily mean temperatures ranging from 22 to 27 °C (72 - 81 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 1 to 3 °C (34 - 37 °F) throughout the day. On average each year, Masan experiences 103 days above 25 °C (77.0 °F) and 74 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Masan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum17°C
(63°F)		22°C
(71°F)		23°C
(75°F)		28°C
(83°F)		30°C
(86°F)		33°C
(92°F)		35°C
(95°F)		37°C
(99°F)		32°C
(89°F)		29°C
(85°F)		23°C
(73°F)		19°C
(66°F)
Mean maximum12°C
(55°F)		16°C
(61°F)		21°C
(70°F)		26°C
(80°F)		29°C
(85°F)		31°C
(88°F)		33°C
(92°F)		35°C
(95°F)		30°C
(87°F)		27°C
(81°F)		21°C
(70°F)		15°C
(59°F)
Average high5°C
(42°F)		7°C
(45°F)		14°C
(57°F)		19°C
(66°F)		24°C
(75°F)		27°C
(81°F)		29°C
(85°F)		31°C
(88°F)		26°C
(79°F)		21°C
(70°F)		15°C
(59°F)		7°C
(46°F)
Daily mean1°C
(34°F)		2°C
(37°F)		8°C
(46°F)		13°C
(56°F)		18°C
(65°F)		22°C
(72°F)		26°C
(78°F)		27°C
(81°F)		22°C
(71°F)		16°C
(60°F)		9°C
(49°F)		3°C
(37°F)
Average low-3°C
(27°F)		-2°C
(29°F)		2°C
(37°F)		7°C
(45°F)		12°C
(54°F)		18°C
(64°F)		23°C
(73°F)		24°C
(75°F)		18°C
(65°F)		11°C
(52°F)		4°C
(40°F)		-1°C
(30°F)
Mean minimum-10°C
(14°F)		-7°C
(19°F)		-4°C
(26°F)		0°C
(32°F)		6°C
(42°F)		13°C
(55°F)		19°C
(66°F)		19°C
(67°F)		11°C
(53°F)		4°C
(39°F)		-1°C
(30°F)		-8°C
(19°F)
Minimum-19°C
(-2°F)		-10°C
(14°F)		-5°C
(24°F)		-2°C
(29°F)		3°C
(38°F)		11°C
(53°F)		17°C
(62°F)		16°C
(62°F)		11°C
(52°F)		2°C
(36°F)		-2°C
(28°F)		-12°C
(12°F)

Compare climate in Masan with other places

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

Monthly average precipitation in Masan, South Korea

Masan usually has the most precipitation in July, August and September, with an average of 14 rainy days and 220 mm (8.7 inches) of precipitation per month. The driest months in Masan are January, February and December. On average, 31 mm (1.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Masan. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)28 (1.1)31 (1.2)65 (2.6)62 (2.4)88 (3.5)146 (5.8)233 (9.2)206 (8.1)221 (8.7)70 (2.8)36 (1.4)33 (1.3)
Average precipitation days (≥ 1 mm)6576910151612546

Monthly sunshine hours in Masan, South Korea

The sunniest months in Masan are May, June and August, when the sun shines an average of 9 hours 56 minutes a day. Least sunny months in Masan: January, February and December receive an average of 7 hours 13 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Masan. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours190236276287304308292301257267236231
Mean daily daylight hours10h 3m10h 53m11h 58m13h 4m14h 0m14h 28m14h 14m13h 25m12h 22m11h 16m10h 18m9h 48m

Solar UV radiation in Masan, South Korea

Masan 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 Masan UV Index data.

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