I can only give you advice on Canterbury but it is a really nice area, if I didn't live here then I would probably apply for Kent but I want to move away. I don't know exact statistics about safety of the campus but I haven't heard of any news on issues with it, I've only heard about how safe it is
Good weather... well we moved from the north of england (Durham) in 2008 and one of the promises my parents gave me was that the weather was better! so this would apply in comparision to Edinburgh. But really, in reality it's not much different. In the summer it is hotter down here but it is still cold in winter, however we don't get as much snow on average, as for wind I'm not sure!
As for being an Arab male, Canterbury is constantly full of tourists visiting for the day etc. and I'd say Canterbury appears tolerant of different religions etc. in everyday life. There is a lot of multi-culture
and a Mosque nearby
The city is really nice and a beautiful place
I hope this helps a little