Cheonan sits inland in central South Korea, where the summer jangma monsoon front and occasional typhoon remnants both contribute to a rainy season concentrated between late June and September.
Between Seoul and Daejeon, the city’s rapid growth has added stormwater management challenges in newer, low-lying districts. Local rivers can rise quickly when the jangma front stalls overhead for several days in a row, and radar helps track individual heavy bands within what is otherwise a long, steady rain event. Learn more: Flash Flood Warning Signs on Radar · Open the full Rain Map
Frequently Asked Questions
Is it raining in Cheonan right now?
The live radar map above shows precipitation over Cheonan, Chungcheongnam-do in real time. Blue shades indicate light rain, while yellow, orange, and red mark heavier downpours. If no colored echoes appear over Cheonan, no significant rain is currently being detected.
How often does the Cheonan rain radar update?
The radar refreshes continuously, typically every few minutes, so the map reflects current conditions rather than an hours-old forecast. Press play to animate the most recent frames.
Can I see if a storm is heading toward Cheonan?
Yes. Press play on the radar to animate the last few hours of rainfall and watch which way rain cells over Chungcheongnam-do are moving – the clearest way to judge whether a shower will reach Cheonan or pass by.
Is this Cheonan rain radar free to use?
Yes, completely free – no account, app download, or sign-up required. It works in any browser on desktop and mobile.