Right you prefer the prick eared one. Good choice. Floppy ears can be a bother to keep clean.
I don't think the climate should be any less suitable for them than for other shaggy-haired terriers like the AST or the Yorkie, which seem to do well enough in our climate. I suppose you can minimise problems with acclimatisation by importing one from places like Thailand, Taiwan, the Philippines or the sub-tropical areas of Australia. Looks like that's the way you'll have to go if you want a Norwich. But you never know, there might be a breeder somewhere here.
well i actually own a norwich terrier but not pure breed mix with poodle but he looks more towards terrier.well he is cute but he sleeps very ugly He's name is Patch cause he has a patch on his chin and chest.Very clever dog and like' s cool places he always sleep in front of the fan and when we go out it our Kancil he always sit on the dash board with his ass on the aircon.