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Monthly climate in Sanseo, South Korea

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Sanseo features a humid continental climate (Dfa). Temperatures typically range between -1 °C (30 °F) and 25 °C (78 °F) through the year, but rarely can drop to -20 °C (-3 °F) or can rise to as high as 35 °C (95 °F). The average annual precipitation amounts to about 1293 mm (50.9 inches) and receives 109 rainy days on the 1 mm (0.04 inches) threshold annually. Sanseo enjoys an average of 3063 hours of sunshine throughout the year, and daylight varies from 9 hours 47 minutes to 14 hours 29 minutes per day.

Monthly average temperatures in Sanseo, South Korea

The warmest months in Sanseo are June, July and August, with daily mean temperatures ranging from 21 to 25 °C (70 - 78 °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, Sanseo experiences 83 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 Sanseo. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum14°C
(58°F)		22°C
(71°F)		22°C
(72°F)		28°C
(83°F)		30°C
(86°F)		32°C
(89°F)		34°C
(94°F)		35°C
(95°F)		29°C
(85°F)		29°C
(84°F)		21°C
(70°F)		15°C
(60°F)
Mean maximum11°C
(52°F)		15°C
(59°F)		20°C
(69°F)		26°C
(78°F)		29°C
(84°F)		30°C
(86°F)		32°C
(89°F)		34°C
(93°F)		29°C
(84°F)		26°C
(79°F)		20°C
(67°F)		13°C
(55°F)
Average high4°C
(39°F)		6°C
(43°F)		13°C
(55°F)		18°C
(64°F)		22°C
(73°F)		26°C
(79°F)		28°C
(82°F)		29°C
(85°F)		24°C
(76°F)		19°C
(67°F)		13°C
(56°F)		5°C
(42°F)
Daily mean-1°C
(30°F)		1°C
(34°F)		7°C
(45°F)		12°C
(54°F)		17°C
(63°F)		21°C
(70°F)		24°C
(76°F)		25°C
(78°F)		20°C
(68°F)		14°C
(57°F)		7°C
(45°F)		1°C
(33°F)
Average low-5°C
(23°F)		-4°C
(25°F)		2°C
(35°F)		6°C
(43°F)		11°C
(53°F)		17°C
(62°F)		21°C
(70°F)		22°C
(72°F)		16°C
(61°F)		9°C
(49°F)		2°C
(36°F)		-3°C
(26°F)
Mean minimum-13°C
(9°F)		-11°C
(13°F)		-4°C
(25°F)		-1°C
(31°F)		5°C
(41°F)		12°C
(54°F)		17°C
(63°F)		17°C
(63°F)		10°C
(50°F)		1°C
(35°F)		-3°C
(27°F)		-11°C
(12°F)
Minimum-20°C
(-3°F)		-15°C
(6°F)		-5°C
(24°F)		-2°C
(28°F)		4°C
(40°F)		9°C
(48°F)		16°C
(60°F)		14°C
(57°F)		7°C
(45°F)		-1°C
(30°F)		-4°C
(25°F)		-14°C
(7°F)

Compare climate in Sanseo with other places

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

Monthly average precipitation in Sanseo, South Korea

Sanseo usually has the most precipitation in July, August and September, with an average of 16 rainy days and 225 mm (8.9 inches) of precipitation per month. The driest months in Sanseo are January, November and December. On average, 32 mm (1.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sanseo. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)35 (1.4)37 (1.5)76 (3.0)73 (2.9)92 (3.6)161 (6.3)265 (10.4)200 (7.9)211 (8.3)81 (3.2)34 (1.4)28 (1.1)
Average precipitation days (≥ 1 mm)5587911181713664

Monthly sunshine hours in Sanseo, South Korea

The sunniest months in Sanseo are April, May and June, when the sun shines an average of 9 hours 32 minutes a day. Least sunny months in Sanseo: January, September and November receive an average of 7 hours 18 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sanseo. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours193237273276298292249272235259235237
Mean daily daylight hours10h 3m10h 53m11h 58m13h 5m14h 1m14h 29m14h 15m13h 26m12h 22m11h 15m10h 17m9h 47m

Solar UV radiation in Sanseo, South Korea

Sanseo 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 Sanseo UV Index data.

Average daily maximum UV levels by month for Sanseo. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)457101011121210753