The kind of thing I usually wear in summer is Aqua di Gio, Be Delicious by CK.
Fresh and fruity.
I also adore Estee Lauder Pleasures Delight but maybe a bit cloying for the summertime.
Really love the Avon Reece Witherspoon fragrance In Bloom but it lasts about 2 minutes!! unfortunately always find this with the cheaper perfumes