Isolated places in south coastal Tamil Nadu, Delta districts, Puducherry and Karaikal can expect light to moderate rain for four days from Tuesday, according to Regional Meteorological Centre in Chennai.

According to P. Senthamarai Kannan, director, area cyclone warning centre at the Regional Meteorological Centre Chennai, the rain is due to the movement of a cyclonic circulation over the equatorial regions. However, north Tamil Nadu has lesser chance of getting any rain from this circulation. 

For Sunday and Monday, there is no change in maximum temperature over Tamil Nadu. Puducherry and Karaikal is expected, which is likely to be 2-3 degree Celsius, above normal. On the subsequent two days, a slight fall is expected. 

For Chennai city, on Sunday the maximum temperature is expected to hover around 32-33 degree Celsius and minimum 23-24 degree Celsius. The sky condition would be partly cloudy with mist/haze likely to prevail during morning hours.