Yeah, generally the more citrusy, fresher, aquatic, cleaner scents seem to work in better harmony with the heat. I prefer the less obtrusive fragrances. My suggestions:
Creed Erolfa - A minimalist masterpiece. Salty, happy, yummy. Try a sample here http://theperfumedcourt.com/Products...Erolfa-dw.aspx
Gendarme EDP - Lasts much longer than the fleeting original version. This one can endure through the more sweltering days. Reminds me in a way of Magic Sizing fabric spray. Good thing I happen to like that scent.
Acqua Di Parma Colonia Intensa - More citrusy than the above two. A very happy, very southern European scent, especially after 10 minutes of dry down. Oh how I love this one. Try a sample here http://theperfumedcourt.com/Products...dPIntensa.aspx
Geo F Trumper GFT or Geo F. Trumper Portugal. Also great. Beautiful, refreshing