Ooty normally also has rainfall atleast once a day and august being the peakbof monsoon all places will have rains but wayanad might have heavy rains so just check for weather beforehand and stay safe coz in forest you can never get the idea when and how rains become heavy to very heavy and the rivers get flooded often so avoid any such place..coorg is beautiful but can be covered in a day or maximum two.do get homemade choclates from there and visit coffee cafes there you are going to fall in love with coffee all over again..I’ll soon post a blog on coorg u may check that..cunoor is much better than ooty so I recommend stay in cunoor if going to ooty..u can get good and cheap deals for all these places on mmt or airbnb..check reviews before you book..Happy journey!