Quote Originally Posted by Yshnal View Post
Close enough According to certain levequest (I don't remember its name, sorry >.<), the aetheric flow changed, and since then it has been raining a lot in Thanalan, even if it's a desert. It makes even more sense in eastern, as you can see all the crystal spikes of corrupted aether. A similar thing happened in Coerthas, for example, and that's why at least the part we can see right now (central) is covered in snow.

Regarding any change in the amount of rains in eastern since 2.2, it has always been the same for me, so it might just be the nature of the RNG :P
The Battle of Silvertear Skies changed the aether of the land drastically and Dalamud's ascent extrapolated this drastically. Thanalan isn't actually a desert it's just a pretty dry place and that's why Ul'dah works because of the access to water (a reason why the Sil'dih-Ul'dah war happened with a drought). The aether of the land has had a chance to recover and return to what it once was...a real desert would be Sagoli to the south (not just the place around Forgotten Springs) home/ruins of Sil'dih and Pagl'than the home land of the Amalj'aa.