Taking a dip as the temperatures start to soar is a great way to cool off, but to protect your skin from becoming dried out in the summer heat, it's the water you put inside your body that counts the most. "The most important time of the year to focus on hydration is during temperature change," says Emma Pattee, a skincare expert with Egyptian Magic Skin Care. "When the days start getting hot, make sure you're drinking a full 48 to 64 ounces per day." If plain water just isn't your thing, give your sip a summer twist by adding chopped mint, cucumber slices or lemon wedges. Chill before serving.