Hey,
I'm from the south in USA. Try getting a fan with metal blades. They cool better because as the air is moved and cooks, the metal conducts the cold air ( like touch a metal pot when hot, except cold conducted to make cold). So the cold blades cool the air, which cools.the blades more...etc. etc. I got my current fan from amazon so you can get good fans from anywhere. A good fan can be a little pricey though. Hope that helps!