South Korea Climatic Classifications

CodeDescriptionGroupNumber of states/regionsStates/regions
CfaHumid subtropical, no dry seasonTemperate6 Busan Chungcheongnam-do Gwangju Jeju-do Jeollanam-do Ulsan
DwaHumid continental, severe dry winter, hot summerCold (continental)5 Chungcheongbuk-do Gyeonggi-do Gyeongsangbuk-do Sejong Seoul
CwaHumid subtropical, dry winterTemperate3 Daegu Gyeongsangnam-do Incheon
DfaHumid continental, no dry season, hot summerCold (continental)2 Daejeon Jeollabuk-do
DwbHumid continental, severe dry winter, warm summerCold (continental)1 Gangwon-do

Summary: Most regions (6) in South Korea lie in the Humid subtropical, no dry season climate zone (Köppen: Cfa). The mean average of annual temperatures range from a high of 15.87°C (60.57°F) in Jeju-do to a low of 9.04°C (48.27°F) in Gangwon-do.

Climate South Korea: Weather By Month

MonthJanFebMarAprMayJunJulAugSepNovOctDecYear
Record high °C (°F)6.87(44.37)8.11(46.6)12.38(54.28)17.7(63.86)23.89(75.0)27.75(81.95)29.69(85.44)30.57(87.03)26.14(79.05)20.44(68.79)15.06(59.11)9.02(48.24)30.57(87.03)
Average high °C (°F)2.23(36.01)5.12(41.22)10.75(51.35)16.24(61.23)22.1(71.78)25.87(78.57)28.07(82.53)29.26(84.67)24.92(76.86)19.33(66.79)12.23(54.01)4.19(39.54)16.69(62.04)
Daily mean °C (°F)-0.73(30.69)2.02(35.64)7.41(45.34)12.8(55.04)18.63(65.53)22.74(72.93)25.47(77.85)26.47(79.65)21.73(71.11)15.85(60.53)9.28(48.7)1.5(34.7)13.6(56.48)
Average low °C (°F)-4.3(24.26)-1.95(28.49)2.3(36.14)6.9(44.42)12.03(53.65)16.5(61.7)20.76(69.37)21.55(70.79)16.63(61.93)10.94(51.69)5.29(41.52)-1.86(28.65)8.73(47.71)
Record low °C (°F)-11.09(12.04)-8.23(17.19)-3.14(26.35)1.64(34.95)7.02(44.64)11.36(52.45)16.05(60.89)16.14(61.05)10.79(51.42)5.14(41.25)-0.65(30.83)-8.48(16.74)-11.09(12.04)
Average precipitation mm (inches)35.29(1.39)49.2(1.94)72.47(2.85)105.77(4.16)111.29(4.38)146.31(5.76)305.35(12.02)271.28(10.68)167.75(6.6)95.65(3.77)59.83(2.36)42.42(1.67)121.88(4.8)
Average precipitation days (≥ 1.0 mm)5.215.487.368.377.9512.418.7718.110.635.746.96.249.43
Average relative humidity (%)65.8862.2262.4365.3370.5176.7684.4382.1578.0370.8767.5165.5870.98
Mean monthly sunshine hours7.319.2310.2711.5412.9813.112.2212.3210.348.797.477.2410.23

South Korea Climate Graph

South Korea

South Korea’s Cities by Temperature

South Korea’s states/regions ranking by average yearly temperature:

Jeju-do
15.87°C | 60.57°F
Busan
15.56°C | 60.01°F
Jeollanam-do
15.15°C | 59.27°F
Ulsan
14.66°C | 58.39°F
Gwangju
14.48°C | 58.06°F
Daegu
14.1°C | 57.38°F
Jeollabuk-do
14.0°C | 57.2°F
Seoul
13.89°C | 57.0°F
Incheon
13.69°C | 56.64°F
Sejong
13.55°C | 56.39°F
Chungcheongnam-do
13.47°C | 56.25°F
Gyeongsangnam-do
13.38°C | 56.08°F
Chungcheongbuk-do
13.24°C | 55.83°F
Daejeon
13.05°C | 55.49°F
Gyeongsangbuk-do
12.34°C | 54.21°F
Gyeonggi-do
11.7°C | 53.06°F
Gangwon-do
9.04°C | 48.27°F

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