Heavy Rainfall Forecast for Tamil Nadu, Including Chennai and 16 Other Districts
Heavy Rainfall Forecast for Tamil Nadu, Including Chennai and 16 Other Districts
IN · Published Oct 20, 2026
• The India Meteorological Department (IMD) has forecast heavy rainfall across Tamil Nadu, including 17 districts such as Chennai, Chengalpattu, Tiruvallur, and Kancheepuram, on Sunday and Monday.
• The rainfall is attributed to an atmospheric circulation over northern Tamil Nadu and adjoining southern coastal Andhra Pradesh.

Impact & Risks

The heavy rainfall is expected to exacerbate waterlogging in low-lying areas, particularly in Chennai, where some neighbourhoods are already affected. The risk of flooding remains high in the 17 districts under the heavy rainfall forecast. Residents in these areas may face disruptions in daily activities, including transportation and access to essential services. Emergency preparations, including potential rescue operations, are being planned to mitigate risks.

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