Chennai residents experienced an unusual chill as temperatures dropped significantly below normal. Nungambakkam recorded a maximum of 24°C, a 5.5°C departure from average, while Meenambakkam registered 25.1°C. Meteorologists attribute the cold to reduced sunshine and northerly winds. Light to moderate rain is forecast for Tamil Nadu, Puducherry, and Karaikal, with isolated heavy rain expected in some coastal districts.