Calcutta sweated it out on Tuesday as the rain stayed away for 48 hours since Sunday evenings cursory appearance and could be in for worse with the weatherman predicting a rise in temperature and humidity over the next 24 hours.
The two combined on Tuesday to raise the discomfort index, an estimate of the effect of temperature and moisture on the human body, to 65 degrees Celsius, 10 degrees above normal.
Tuesday was the muggiest this year. I got drenched sitting in a moving car in central Calcutta around 3pm, said Trinayana Banerjee, who works in a private bank.
The maximum relative humidity shot up a couple of notches since Monday to reach 92 per cent, the highest in the season.
The minimum reading saw a steeper ascent from 49 to 58 per cent, which meant the moisture content in the air was high throughout Tuesday.
The weather is likely to become more uncomfortable in the state. There is no heat wave warning for Calcutta but such a warning has been issued for Purulia, Bankura, West Midnapore, Burdwan and Malda. The maximum temperature is likely to go up by another degree or so on Wednesday, said Gokul Chandra Debnath, director, India Meteorological Department, Calcutta.
There is no atmospheric formation that could lead to rainfall in Calcutta at least in the next 24 hours, he added.
According to weather scientists, lack of rainfall is to blame for the heat and discomfort. It has rained only on three days this May.
Between 2008 and 2011, there were at least nine days of rain in the first 22 days of May.