I assume you work indoors? If you do and there is air conditioning, no problem. I actually purchased Chic last year in the middle of a heat wave, and had no problems wearing it even in the god awful heat and humidity. Two small sprays to the chest, it's a very casual fragrance in my mind so wearing it to the office shouldn't be a problem. Not so much for formal occassions or clubbing/evening wear.
If you're outdoors for an extended period of time, a single heavy spray will prevent you from reeking to high heaven. However I don't think the scent lasts too long, so you may find yourself 'dry' so to speak within 3 hours.