For its forecast valid till tomorrow, the weather office said the maximum and minimum temperature will be around 36 and 29 degree Celsius, respectively.
The hot period is expected to last till the end of the month where the mercury reaches 40 degree Celsius easily.
Residents in cities including Madurai and Coimbatore expressed concern over the continued power cuts and water shortage, especially with both southwest and northeast monsoon spells bridging deficient rain.