Here are some tips for coping:

Get about in your underwear, use a fan or aircon whenever you can.

Drape a damp cloth (a tea towel works well) around your neck shoulders, take it off and cool it in front of the fan then reapply.

Suck on ice

Sit with your feet in a cool (tepid) foot bath.

Take a cool shower as often as you need.

Use a spritz bottle

Hang out at the library/shops/friends/family's house - or wherever you can that has aircon.

Ask around if anyone you know has a portable aircon you can borrow or think about hiring one if you can.