Done in plenty of times, Queensland and Victoria, unless you're pasty white and have never stepped outside you aren't going to get burnt in 5 minutes, let alone

Done in plenty of times, Queensland and Victoria, unless you're pasty white and have never stepped outside you aren't going to get burnt in 5 minutes, let alone seriously. I've done it with my normal cycling attire of a wife beater and shorts, still no burning. That's without any protection, but some sun screen, a hat and some long sleeves will prevent burning and save you from the long term skin cancer risks.