The forecasted rain may disrupt Deepavali celebrations, particularly outdoor activities such as cracker-burning and evening gatherings. Families planning to visit relatives or travel across the city may face challenges due to the unpredictable weather. Residents in districts expecting heavy rain, such as Thanjavur and Nagapattinam, could experience localised disruptions. The possibility of thunderstorms with lightning and gusty winds poses additional risks, especially for those outdoors during the celebrations.