Sep to feb are the best months to travel to dubai. u can miss the heat during the day but it is cool during the nights(throughout the year). dont worry it has central a/c acommodation everywhere.being an indian I would advice u to purchase mainly electronics stuff from here like in jumbo electronics or at any hypermarkets like continental, wafi, lamcy u get original stuff then u get in mumbai. the price even suits ur budget. DONT purchase clothes from deira or karama as they are imported from mumbai itself. the people are cool they speak hindi , english, tamil becoz 60% of the people in dubai are INDIANS. travel is cheap by bus or pvt. taxi. every lane u will find an indian restaurant both veg and non- veg.actually dubai is the new york of the east. if u have got enough money there r discs and lots of shopping.
beaches r cool and the corniches. lots of gardens, greenery. its clean. dubai is not at all a desert, it is a beautiful city come out of a sandy desert