If you are thinking about turning to light wines due to the weather - since in many areas (not all of course) of the world are starting to warm up - then one grapes you may want to consider is Albariño. Pictured is a bottle of Condes de Albarei from the Products from Spain web site, and you'll read more praise from this article at San Diego City Beat:

Spain's Albariño grape does most of what the Riesling seems to do, especially when it involves the 2004 entry from that country's Martin Codax vintners. The Albariño grows better in warmer areas of Western Europe, and its Codax brand yields the same Riesling effects-it's dry and fruity and flowery, it loves seafood and summer dishes and it even talks back amid the aftertaste's staying power. There's also everything to be said for its value. The Codax entry goes for $15.99 where good wines are sold, whereas the better Rieslings have been known to fetch upwards of something close to $41 billion per bottle.