Always seem to be a few places open, eg Nil bar ,Enya on the prom for example. There is more open on the Kordon in Fethiye. As for clothes take jumpers, body warmer, a coat, as it is often sunny but the air feels cold also can be very cold at night. If you find you have taken the wrong stuff a quick trip up to Waikikki at the Erasta is a good source of cheap clothes! Have a nice time!