The India Meteorological Department has issued significant weather warnings for Tamil Nadu and Puducherry, with Chennai expected to experience deteriorating conditions as the weekend approaches. Residents across the region should prepare for persistent rainfall throughout the week, potentially intensifying by Saturday and Sunday.
Weekly Rainfall Forecast and District Warnings
According to the latest IMD bulletin released on Tuesday, November 18, 2025, light to moderate rainfall is anticipated across numerous locations in Tamil Nadu and the Puducherry-Karaikal regions. The weather authority has specifically identified multiple districts that will experience isolated rainfall, including Ariyalur, Chengalpattu, Chennai, Cuddalore, Kancheepuram, and Kanniyakumari among others.
The IMD has implemented a yellow warning across affected areas, alerting residents to potential hazards such as slippery roads, waterlogging, and possible traffic disruptions. The meteorological department emphasized that heavy rainfall is particularly likely in Tirunelveli, Kanyakumari, Thoothukudi, Ramanathapuram, Sivaganga, Virudhunagar, Tenkasi, and Theni districts.
Weekend Weather Deterioration in Chennai
Weather conditions in Chennai are projected to worsen significantly during the weekend period. The IMD forecasts that heavy rainfall will intensify across Chennai and surrounding districts starting from Saturday through Sunday.
The cloud cover is expected to increase substantially by Friday, setting the stage for more intense precipitation. The meteorological department specifically warned that heavy rain could occur at isolated places over Mayiladuthurai, Cuddalore, Villuppuram, Chengalpattu and Nagapattinam districts along with the Puducherry and Karaikal areas.
Extended Forecast and Safety Precautions
The rainy weather pattern is expected to persist throughout Tamil Nadu well into the weekend. On Wednesday and Thursday, heavy rain is likely at isolated places over Mayiladuthurai and Cuddalore districts, maintaining the consistent wet conditions.
For Saturday and Sunday, the IMD has expanded its warning to include numerous districts that are likely to receive heavy rainfall. The affected areas include Tiruvallur, Kancheepuram, Chengalpattu, Chennai, Villuppuram, Cuddalore, Mayiladuthurai, Nagapattinam, Ariyalur, Tiruvarur, Thanjavur, Pudukkottai, Ramanathapuram, Thoothukudi, Kanyakumari, and Tirunelveli districts, along with Puducherry and Karaikal areas.
Residents across these regions are advised to stay updated with the latest weather bulletins, avoid unnecessary travel during heavy rainfall, and take necessary precautions against potential waterlogging and related disruptions.
