Southern China Braces for More Heavy Rain as Flood Risks Mount
Persistent heavy rainfall continues to batter southern China, with authorities warning of heightened risks of flooding, geological disasters, and urban waterlogging across the Jiangnan and South China regions. The Central Meteorological Observatory issued a yellow rainstorm warning on June 14, forecasting heavy to torrential rain across Guangdong, Guangxi, Fujian, and surrounding provinces through at least June 16, according to Xinhua News Agency.
Context: A Prolonged Rainy Spell
June marks the traditional flood season in China, particularly in the Yangtze River basin and southern regions. This year, the South China Sea summer monsoon was declared to have begun in early June, triggering the main flood season and bringing moisture-laden air to the south. The current rainfall event is driven by a stable rain band lingering over southern Jiangnan and South China, with active upper-level troughs contributing to frequent thunderstorms in northern areas.
Beijing’s cumulative precipitation from January 1 to June 11 reached 156 mm — 59.3% above the normal of 97.9 mm and 40.5% above the same period in 2025, as reported by the China Weather Network.
Key Developments
From June 14 to 16, the rain band will remain stable over southern Jiangnan and South China, with intense rainfall expected in parts of Guangdong, Guangxi, and Fujian, accompanied by severe convective weather. The Central Meteorological Observatory warned that parts of central-northern and eastern coastal Guangdong could receive extremely heavy rainfall of 250–280 mm.
Multiple government agencies have activated emergency responses. The China Meteorological Administration initiated a Level IV emergency response for heavy rain on June 12, while the National Flood Control Headquarters activated a Level IV flood control emergency response for seven provinces — Guangdong, Guangxi, Jiangxi, Fujian, Zhejiang, Guizhou, and Hunan — on the same day, as reported by CCTV News. The Ministry of Emergency Management also activated a Level IV geological disaster emergency response for multiple provinces.
Specific impacts are already being felt across the region. In Hunan’s Zhongfang county, 568 people were evacuated after a red flash flood warning was issued on June 13, according to China News Service. Shenzhen issued a red rainstorm warning on June 14 for the Pingshan and Longgang districts, while Fujian province issued a heavy rain alert on the same morning.
Analysis: A Testing Time for Disaster Preparedness
The overlap of this rainfall with previous precipitation significantly increases the risk of cumulative damage. From June 3 to 9, widespread heavy rain already affected provinces including Sichuan, Chongqing, Guizhou, Yunnan, Hunan, Guangxi, Guangdong, Fujian, Jiangxi, and Zhejiang. The forecast through June 18 suggests continued heavy rainfall, with cumulative totals potentially reaching 400–600 mm in localized areas and even exceeding 800 mm in some locations.
Agricultural damage is a growing concern, with farmland waterlogging threatening crops across southern China’s breadbasket regions. Meanwhile, in a stark weather contrast, northern provinces including Henan and Shaanxi are experiencing persistent high temperatures exceeding 35°C, with Zhengzhou forecast to have five hot days in the coming week.
As the National Flood Control Headquarters noted in a joint consultation, “The main rain area will be in the eastern part of Southwest China, Jiangnan, and South China, with long duration, large cumulative rainfall, and some areas overlapping with previous rainfall. The risk of flash floods, geological disasters, and urban waterlogging is relatively high, and the flood control situation is becoming severe.”
What’s Next
With the monsoon season now fully underway, southern China faces a prolonged period of heightened flood risk. The China Meteorological Administration has warned that the southern region has entered a period of concentrated heavy rainfall, with high disaster risk from torrential rain. Authorities are urging strengthened prevention measures against mountain torrents, geological disasters, flooding of small and medium-sized rivers, urban waterlogging, and farmland waterlogging.
Transportation disruptions, including train suspensions and flight delays, are likely to continue as the rain persists. The coming days will test the effectiveness of China’s multi-layered disaster prevention and response systems, which have been activated at national, provincial, and local levels.
Residents in affected areas are advised to monitor local warnings closely and take precautionary measures as the rain shows no sign of relenting in the near term.