How to LOWER ambient temps?

[Brandonbeaty]

So, it's really hot at the moment in the UK... In my bedroom (Where I keep the snakes) the ambient temp is 29c (84f) which for a cold side is MUCH too hot. I've got all the windows open, and a fan on directed at the cold side of the vivs, and yet the cold sides are sitting at 28c (82f). What can I do to lower the temps? How long will that temp be okay, and what will happen if they can't get cold enough?
Thanks in advanced!

might help if you could get some ac to that room. it being so hot out side opening the windows may not be helping