Oooh, tricky. Let me see:
* Ipanema beach would be quite appealing: only in the upper 20s this time of year, so not too hot for me but warm enough to enjoy a cool caipirinha and maybe head up the hills in the afternoon.
* Nepal, because I like mountains.
* Senegal, because what I know of the culture (mainly music) appeals to me.
* Tromsø, because I've always wanted to cross the arctic circle (I know it's going to be dark there now, but I personally like Stockholm in November so fancy taking that up a notch).
* Somewhere without an internet connection, because then I really could forget about work