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Northeast monsoon intensifies across Tamil Nadu; Chennai witnesses heavy downpour

Heavy rainfall has lashed Chennai and other parts of Tamil Nadu as the northeast monsoon gathers strength across the state. The India Meteorological Department has forecast widespread precipitation with the possibility of very heavy rain through October 21.

LSN India · 18 October 2026

Northeast monsoon intensifies across Tamil Nadu; Chennai witnesses heavy downpour

The northeast monsoon has become increasingly active across Tamil Nadu, bringing heavy rainfall to Chennai and surrounding regions. The downpour has led to widespread waterlogging on major roads and contributed to significant traffic congestion across the city, disrupting normal movement and commute times.

The India Meteorological Department has issued predictions for continued precipitation across Tamil Nadu in the coming days. Forecasters expect widespread rainfall to persist, with the possibility of very heavy rain expected to continue through October 21. The intensity and distribution of rainfall may vary across different regions of the state.

Meteorological authorities have placed a yellow alert in effect through October 23, indicating conditions that warrant monitoring and preparedness. Residents and commuters have been advised to exercise caution as water accumulation on roads and potential traffic disruptions are likely to continue in the near term.

The northeast monsoon, which typically brings substantial rainfall to southern India from October through December, has already begun delivering significant precipitation to the region. With more rain forecast in the coming days, civic authorities and residents are bracing for the effects of the active weather system.