The city sweated under the twin assault of heat and humidity for most of Saturday before claps of thunder, streaks of lightning and gusts of wind brought some relief in the evening.

There was very little rain but the cloud cover and the winds brought the mercury down marginally. But the relief was short-lived. “The weather is likely to be hot and sultry in the coming days until a fresh low-pressure area over the north Bay propels monsoon into the city,” said a Met official. He attributed the uncomfortable weather to formidable moisture incursion from the Bay.

“This is typical pre-monsoon weather. The high moisture content in the air is making the conditions so sweaty. The mercury is also on the higher side,” he said.