Welcome, Adam, and I'm glad you've been enjoying Basenotes. My first suggestion is not to worry about scents that will "attract some females." What's going to make you attractive to others in terms of scent is your comfort in that scent. If women are attracted to you, it's likely because of who you are. Hence, a scent that is expressive of "you," that somehow smells like "you" is liable to be your best bet.
I get the feeling though, that you're not really asking the dreaded "What scent do chicks dig?" question that gets so many newbies flamed around here. (If you are, try the "search" feature here.) My understanding is that you're looking for a good summer fragrance for a younger guy to wear out at night in a place where summer heat is no joke.
Many would opt for the very popular fresh aquatic scents. There are some great scents in this category, but they're so ubiquitous right now that everybody's starting to smell the same! For something a little different, you might want to try a citrus fragrance with a litttle bit of "animal" in the background, like Hermes Eau d'Orange Vert, someting woody but Mediterranean, like Philosykos by Diptyque, or a "green" scent like Devin by Aramis (which I wore at your age, and is still very well thought of), or Maitre Parfumeur et Gantier's Garrigue. Though they're very pricey, you might also want to investigate a few of the very well-made summer friendly scents from Creed, including Silver Mountain Water and Millesime Imperial.
The trick is to sample widely. Try things on - not on paper, but on you. Give a scent at least as half an hour on your skin before you judge it, too. Most will evolve, and sometimes the results are quite surprising. It sounds like you've been taking advantage of the reviews in the Basenotes directory already, but if not, it's worth it. The many opinions you'll find there can help you decide what might sound appealing.
Good luck hunting!