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Monthly climate in Sinseo, South Korea

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Sinseo features a humid continental climate (Dwa). Temperatures typically range between -4 °C (25 °F) and 25 °C (78 °F) through the year, but rarely can drop to -22 °C (-7 °F) or can rise to as high as 37 °C (99 °F). The average annual precipitation amounts to about 1115 mm (43.9 inches) and receives 91 rainy days on the 1 mm (0.04 inches) threshold annually. Sinseo enjoys an average of 3192 hours of sunshine throughout the year, and daylight varies from 9 hours 32 minutes to 14 hours 45 minutes per day.

Monthly average temperatures in Sinseo, South Korea

The warmest months in Sinseo are June, July and August, with daily mean temperatures ranging from 22 to 25 °C (71 - 78 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -4 to -1 °C (25 - 30 °F) throughout the day. On average each year, Sinseo experiences 90 days above 25 °C (77.0 °F) and 110 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Sinseo. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum11°C
(53°F)		16°C
(61°F)		21°C
(70°F)		27°C
(80°F)		31°C
(89°F)		34°C
(94°F)		35°C
(96°F)		37°C
(99°F)		29°C
(85°F)		28°C
(83°F)		20°C
(68°F)		11°C
(52°F)
Mean maximum8°C
(47°F)		12°C
(53°F)		18°C
(65°F)		25°C
(77°F)		29°C
(84°F)		31°C
(88°F)		34°C
(93°F)		34°C
(94°F)		29°C
(84°F)		26°C
(78°F)		19°C
(66°F)		9°C
(49°F)
Average high1°C
(35°F)		4°C
(39°F)		11°C
(53°F)		17°C
(63°F)		23°C
(73°F)		27°C
(81°F)		29°C
(84°F)		29°C
(84°F)		25°C
(78°F)		19°C
(66°F)		11°C
(52°F)		3°C
(37°F)
Daily mean-4°C
(25°F)		-1°C
(30°F)		6°C
(43°F)		11°C
(53°F)		17°C
(63°F)		22°C
(71°F)		25°C
(77°F)		25°C
(78°F)		20°C
(69°F)		13°C
(56°F)		6°C
(42°F)		-2°C
(29°F)
Average low-8°C
(17°F)		-6°C
(21°F)		0°C
(33°F)		5°C
(41°F)		11°C
(52°F)		17°C
(62°F)		21°C
(71°F)		22°C
(72°F)		16°C
(61°F)		8°C
(46°F)		1°C
(33°F)		-6°C
(21°F)
Mean minimum-17°C
(2°F)		-14°C
(8°F)		-6°C
(22°F)		-2°C
(29°F)		5°C
(42°F)		12°C
(54°F)		18°C
(64°F)		17°C
(63°F)		8°C
(47°F)		-1°C
(31°F)		-6°C
(21°F)		-15°C
(6°F)
Minimum-22°C
(-7°F)		-17°C
(2°F)		-7°C
(19°F)		-3°C
(26°F)		3°C
(38°F)		10°C
(50°F)		16°C
(61°F)		13°C
(55°F)		6°C
(42°F)		-3°C
(27°F)		-8°C
(17°F)		-17°C
(2°F)

Compare climate in Sinseo with other places

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

Monthly average precipitation in Sinseo, South Korea

Sinseo usually has the most precipitation in July, August and September, with an average of 13 rainy days and 208 mm (8.2 inches) of precipitation per month. The driest months in Sinseo are January, February and December. On average, 20 mm (0.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sinseo. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)18 (0.7)22 (0.8)48 (1.9)64 (2.5)121 (4.8)90 (3.5)196 (7.7)281 (11.1)146 (5.8)63 (2.5)46 (1.8)21 (0.8)
Average precipitation days (≥ 1 mm)34679915177554

Monthly sunshine hours in Sinseo, South Korea

The sunniest months in Sinseo are May, June and July, when the sun shines an average of 9 hours 59 minutes a day. Least sunny months in Sinseo: January, November 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 Sinseo. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours200239283285305316296280267254230233
Mean daily daylight hours9h 49m10h 45m11h 57m13h 11m14h 14m14h 45m14h 29m13h 34m12h 24m11h 10m10h 5m9h 32m

Solar UV radiation in Sinseo, South Korea

Sinseo experiences the highest level of ultraviolet (UV) radiation in June, July and August, when the maximum UV index can reach values of 10 - 11, which corresponds to the Very High / 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 4. For more detailed information, check out our hourly Sinseo UV Index data.

Average daily maximum UV levels by month for Sinseo. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)346891011119643