I just placed a stand fan in the balcony, since I use it as a reading area as well. And what do you know... the temperature of the water dropped by 2-3 degrees from 30 to around 28 degrees C!
But I'll still consider getting a fan. Maybe will drop by Y618 tomorrow to get it. My friend told me he saw 1 selling below $25 (well within my budget).
Thanks for all your help guys!
(Mods, please help to close this thread. 10q...)