Heavy Rainfall Expected in Chennai and Surrounding Districts on October 25: IMD
Heavy Rainfall Expected in Chennai and Surrounding Districts on October 25: IMD
IN · Published Oct 22, 2026
• The India Meteorological Department (IMD) has forecast heavy rainfall in Chennai and 28 other districts, including Tiruvallur, Chengalpet, and Kancheepuram, on October
• A low-pressure area over the southwest Bay of Bengal, off the Tamil Nadu coast, is expected to move northwards, bringing heavy rain to these regions. The system is currently not strong enough to warrant a red alert for southern districts and is expected to weaken in the next two to three days. Meanwhile, moderate rainfall with thunderstorms and lightning is likely in Chennai over the next three days. Another weather system may form over the southeast and adjoining east-central Bay of Bengal on October 23, with the potential to intensify into a cyclone, though it is unlikely to impact Tamil Nadu due to its distance from the coast. Source time: not specified.

Impact & Risks

The forecasted heavy rainfall on October 25 could lead to waterlogging and traffic disruptions in Chennai and neighbouring districts. The orange alert issued for 17 southern and delta districts on October 22 indicates the potential for heavy to very heavy rainfall, which may cause localised flooding and disrupt daily activities. Additionally, 24 districts will be under a yellow alert on October 23, signalling the possibility of heavy rain. Residents in affected areas should remain cautious, especially in low-lying regions prone to water accumulation.

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