While I won't have specific examples on hand (because I can't login at work, heh), here are what I would think are some general guidelines:
Ul'dah: The post above pretty much covers their common look, but I should note that the Miqo'te ladies at the Forgotten Springs are a prime example of how not to dress up in the desert. Your back and shoulders MUST be covered or you WILL get sunburn and, given enough exposure, possibly die of heat stroke. The Ul'dahn citizens are far more sensible about this, thankfully. If you just wore a light-colored shawl and something to cover your head, that would probably suffice, even if the rest of you were naked. At night, on the other hand, the temperature can drop considerably, so you would need warm clothing regardless.
Gridania: In a forest environment where you're constantly running into native foliage (to say nothing of all the insects), clothing that is resistant to scratching is a must. The lack of sun thanks to all the tree coverage providing oodles of shade means you don't have to worry so much about coverage like in Ul'dah, but this is probably offset by the scratching problem mentioned above.
Limsa Lominsa: Dress like you're walking around in San Francisco. It's temperate pretty much all-year round and you don't have as many environmental hazards to worry about (native fauna aside), so you pretty much can wear whatever you'd like. Native Lominsans appear to have a preference for simple open shirts and the like.
That's my 2c. Hope this helps.
Ul'dah: The post above pretty much covers their common look, but I should note that the Miqo'te ladies at the Forgotten Springs are a prime example of how not to dress up in the desert. Your back and shoulders MUST be covered or you WILL get sunburn and, given enough exposure, possibly die of heat stroke. The Ul'dahn citizens are far more sensible about this, thankfully. If you just wore a light-colored shawl and something to cover your head, that would probably suffice, even if the rest of you were naked. At night, on the other hand, the temperature can drop considerably, so you would need warm clothing regardless.
Gridania: In a forest environment where you're constantly running into native foliage (to say nothing of all the insects), clothing that is resistant to scratching is a must. The lack of sun thanks to all the tree coverage providing oodles of shade means you don't have to worry so much about coverage like in Ul'dah, but this is probably offset by the scratching problem mentioned above.
Limsa Lominsa: Dress like you're walking around in San Francisco. It's temperate pretty much all-year round and you don't have as many environmental hazards to worry about (native fauna aside), so you pretty much can wear whatever you'd like. Native Lominsans appear to have a preference for simple open shirts and the like.
That's my 2c. Hope this helps.
