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Monthly climate in Hwanam, South Korea

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Hwanam features a humid continental climate (Dwa). Temperatures typically range between -1 °C (30 °F) and 26 °C (79 °F) through the year, but rarely can drop to -17 °C (2 °F) or can rise to as high as 37 °C (99 °F). The average annual precipitation amounts to about 1204 mm (47.4 inches) and receives 90 rainy days on the 1 mm (0.04 inches) threshold annually. Hwanam enjoys an average of 3119 hours of sunshine throughout the year, and daylight varies from 9 hours 42 minutes to 14 hours 35 minutes per day.

Monthly average temperatures in Hwanam, South Korea

The warmest months in Hwanam are June, July and August, with daily mean temperatures ranging from 22 to 26 °C (72 - 79 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -1 to 1 °C (30 - 34 °F) throughout the day. On average each year, Hwanam experiences 90 days above 25 °C (77.0 °F) and 91 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Hwanam. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum12°C
(54°F)		21°C
(71°F)		23°C
(74°F)		29°C
(85°F)		31°C
(88°F)		34°C
(93°F)		35°C
(96°F)		37°C
(99°F)		30°C
(86°F)		30°C
(87°F)		21°C
(69°F)		13°C
(57°F)
Mean maximum10°C
(50°F)		14°C
(58°F)		21°C
(70°F)		26°C
(80°F)		30°C
(86°F)		31°C
(89°F)		33°C
(91°F)		35°C
(95°F)		29°C
(84°F)		27°C
(80°F)		20°C
(68°F)		12°C
(53°F)
Average high3°C
(38°F)		6°C
(43°F)		13°C
(56°F)		18°C
(65°F)		23°C
(74°F)		27°C
(81°F)		29°C
(84°F)		30°C
(86°F)		25°C
(76°F)		20°C
(68°F)		13°C
(55°F)		5°C
(41°F)
Daily mean-1°C
(30°F)		1°C
(34°F)		7°C
(45°F)		13°C
(55°F)		18°C
(64°F)		22°C
(72°F)		25°C
(77°F)		26°C
(79°F)		20°C
(69°F)		14°C
(58°F)		7°C
(45°F)		0°C
(33°F)
Average low-6°C
(22°F)		-4°C
(25°F)		2°C
(36°F)		7°C
(44°F)		12°C
(54°F)		17°C
(63°F)		22°C
(71°F)		22°C
(73°F)		16°C
(62°F)		9°C
(49°F)		2°C
(37°F)		-4°C
(25°F)
Mean minimum-13°C
(8°F)		-11°C
(13°F)		-4°C
(25°F)		0°C
(32°F)		6°C
(43°F)		13°C
(56°F)		18°C
(64°F)		18°C
(64°F)		11°C
(51°F)		2°C
(36°F)		-4°C
(26°F)		-12°C
(10°F)
Minimum-17°C
(2°F)		-15°C
(6°F)		-7°C
(21°F)		-2°C
(30°F)		4°C
(40°F)		11°C
(52°F)		16°C
(61°F)		15°C
(59°F)		8°C
(47°F)		-1°C
(31°F)		-6°C
(22°F)		-14°C
(7°F)

Compare climate in Hwanam with other places

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

Monthly average precipitation in Hwanam, South Korea

Hwanam usually has the most precipitation in July, August and September, with an average of 13 rainy days and 220 mm (8.7 inches) of precipitation per month. The driest months in Hwanam are January, February and December. On average, 27 mm (1.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Hwanam. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)24 (0.9)34 (1.3)70 (2.8)78 (3.1)97 (3.8)105 (4.1)243 (9.6)236 (9.3)181 (7.1)78 (3.1)35 (1.4)23 (0.9)
Average precipitation days (≥ 1 mm)34769916159543

Monthly sunshine hours in Hwanam, South Korea

The sunniest months in Hwanam are April, May and June, when the sun shines an average of 9 hours 45 minutes a day. Least sunny months in Hwanam: January, February and November receive an average of 7 hours 25 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Hwanam. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours196238275280304303267275246258232239
Mean daily daylight hours9h 57m10h 50m11h 57m13h 7m14h 6m14h 35m14h 20m13h 29m12h 22m11h 13m10h 13m9h 42m

Solar UV radiation in Hwanam, South Korea

Hwanam 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 Hwanam UV Index data.

Average daily maximum UV levels by month for Hwanam. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)35791011111210753