From a Hot-air Oven to the Furnace?

The climate has been very different this year - heat started off early in February, and days are getting hotter. For the past 15 days or so, the temperature has risen so sharply that Kerala now feels like a Hot-air over. The air is hotter, and high humidity is making matters worse. The temperature now hovers around 33-35 deg celsius.

To make matters interesting, I am heading to Chennai tonight on a trip from the College. We would stay over in Chennai for five days before returning! Would this be a Oven to Furnace transition?