With mild weather (almost) year-round and a growing list of local attractions, Phoenix is a great place for a fun family vacation. Tweens will enjoy exploring the museums, dining at unique themed restaurants and late-day hiking with the kind of desert sunsets you thought existed only in the movies. Here is a full day's itinerary chock full of things to do in Phoenix with tweens for a perfect day out in the Valley of the Sun. Hint: if you come in the summertime, bring lots of sunscreen and be prepared to sweat, as high temps average over 100 degrees from June through August. Better yet, plan your visit for the spring or fall when the weather is perfect for outdoor activities.