South Korea climate

Places covered
34
with monthly data
Warmest place
Jeju City
year average 16 °C62 °F
Coolest place
Yangju
year average 11 °C51 °F
Wettest place
Jeju City
1,579 mm62 in a year

World Climates covers 34 places in South Korea. By annual mean temperature, the warmest is Jeju City (16 °C62 °F) and the coolest is Yangju (11 °C51 °F). The wettest is Jeju City with 1,579 mm62 in of precipitation per year, the driest Sangju with 1,141 mm45 in.

The most common climate types (Köppen classification computed from these averages) are monsoon-influenced hot-summer humid continental (Dwa, 21 places), humid subtropical (Cfa, 7 places), monsoon-influenced humid subtropical (Cwa, 5 places) and hot-summer humid continental (Dfa, 1 place).

The highest monthly average high is in Gumi (30 °C86 °F in August); the lowest monthly average low is in Yangju (−11 °C13 °F in January).

Across the places in South Korea, the months that most often rank as the most comfortable are May, June and October (23, 3 and 33 of 34 places respectively).

Frequently asked questions

Which is the warmest place in South Korea?

By annual mean temperature, the warmest place in South Korea is Jeju City at 16 °C62 °F. The coolest is Yangju at 11 °C51 °F.

Where does it rain the most in South Korea?

Jeju City gets the most precipitation, 1,579 mm62 in in an average year. The driest place is Sangju with 1,141 mm45 in.

How many places in South Korea does this site cover?

World Climates has climate data for 34 places in South Korea. Each one has a page with monthly averages for temperature, rainfall, humidity and daylight.

When is the best time to visit South Korea?

It depends on the place. Across South Korea, the months that most often rank as the most comfortable are May, June and October. Check the page of each city for its own best months.

Climate of every place in South Korea

Annual averages, 2001–2025
PlaceYearMax highMin lowPrecip.
Seoul1228−71,240
Busan1428−11,488
Daegu1230−71,201
Daejeon1230−71,225
Gwangju1329−41,381
Suwon1128−71,240
Ulsan152801,322
Changwon1428−11,488
Cheonan1228−51,232
Hwaseong-si1228−51,232
Jeonju1229−51,267
Pohang1429−11,186
Jeju City162861,579
Paju1129−101,217
Gumi1230−71,215
Yangsan1330−61,342
Wŏnju1129−101,309
Chinju1429−31,472
Iksan1330−51,267
Chuncheon1128−101,290
Suncheon1330−51,408
Mokpo142711,292
Hanam1129−101,276
Gyeongju1428−11,186
Osan1228−51,232
Geoje1428−11,488
Chungju1229−91,221
Gangneung1327−21,426
Yangju1129−111,217
Gijang162751,520
Andong1229−81,159
Jeongeup1330−51,303
Sangju1230−81,141
Donghae City142711,329

Year = annual mean temperature; max high = average high of the warmest month; min low = average low of the coldest month; precip. = annual total. Temperatures in °C°F, precipitation in mminches. Sorted by population.

Other cities over 100,000 people

These cities share a NASA POWER grid cell with a larger place, so their averages are shown on that page:

Data: NASA POWER climatology 2001–2025 (MERRA-2 reanalysis, CERES satellite data) — grid-cell averages, not station records. Sources and method.