I can tell you that, from my own personal experience, summer is the worst time to have unmanageable hair. In the winter, you can just throw a beanie over your hair or blow dry it. In the summer, it is way too hot for that, and the heat can really destroy your hair. So, unless you have perfect, Barbie-style waves, your hair will probably be a mess this summer, especially when you go to the beach or hang by the pool.