Beatnik, don't push the sun. DO stay out of it as much as you can, not just wearing sunscreen, but sleeves and a hat.
I can't preach that enough, for everyone here! Sun is no longer our friend. Take 800 units o vitamin D per day, and stay out of the sun. The fatigue, the rashes, and the potential for organ involvement from a flare the sun could bring on just are not worth it. Whether you're dark or light, sunscreen, long sleeves and hats are the only way to go when you're outside. OR in the car - I cover my hands and wear long sleeves when I drive or ride. Even THAT amount of sun bothers me!