The Weather Extremes Index

Korea’s hottest, wettest and coldest cities in 2025 — computed from the KMA’s official daily observations at 16 stations. Locals call Daegu “Daefrica”; the heatwave tab is that joke, measured.

Source: KMA surface synoptic (ASOS) daily observations (기상청 지상(종관, ASOS) 일자료) — Korea Meteorological Administration (기상청). Year 2025 · 16 ASOS stations · KMA official thresholds. Retrieved 2026-08-29.

Methodology and limits

Days with a high of 33°C or above — the KMA's official heatwave threshold.

  1. 1Daegu대구54days
  2. 2Cheongju청주48days
  3. 3Jeonju전주48days
  4. 4Daejeon대전44days
  5. 5Gangneung강릉43days
  6. 6Pohang포항43days
  7. 7Gwangju광주41days
  8. 8Chuncheon춘천32days
  9. 9Jeju제주31days
  10. 10Seoul서울28days
  11. 11Ulsan울산28days
  12. 12Suwon수원17days
  13. 13Mokpo목포17days
  14. 14Busan부산16days
  15. 15Incheon인천11days
  16. 16Yeosu여수3days