RESEARCH
Monsoon Rainfall
The same rain, in fewer days.
Extreme rain events
| Year | Dates | Rain | Impact |
|---|---|---|---|
| 2025 | Jul 14–16 | 412 mm | River flooding in two districts |
| 2022 | Aug 8–9 | 381 mm | Underground roads closed |
| 2020 | Jul 30–Aug 3 | 505 mm | Longest rainy season on record |
| 2011 | Jul 26–28 | 587 mm | Landslides in the hills |
Events and values are fictional.
Key findings
- 01
Totals barely change
Summer rain varies around 1,100 mm with no clear trend.
- 02
Bursts get heavier
The wettest 3-day totals grew by a third.
- 03
Rain band moves north
Moisture now reaches further north in late July.
Related papers
- 2025
Moisture transport explains the northward shift of monsoon rain bands
- 2025
장마 종료 시점 변화와 집중호우 빈도
- 2024
Deep-learning nowcasting of convective rainfall over the Korean Peninsula
- 2023
여름철 남서풍과 서울 강수 극값