The snowy weather in main cities

[Brandr]

As for the fact that Eorzea gets snow at all, Coerthas used to be very green in 1.0, and now it is not. Bahamut did a number on the Aether/Elemental Balance of the world, and a lot of things don't work how they used to when it comes to weather. If the Lore says that Coerthas got flash-frozen 5 years ago and hasn't warmed up since, I can also absolutely believe that it gets cold enough to snow at times in the other City-States

You may have a point there. But it only snows inside the city. Give a few steps outside the city and not a single drop of snow can be found.

I'd love to see snow everywhere, it's so beautiful!

Although, I'm not convinced Eorzea is in the north hemisphere, the Photoshop in the Reddit topic Celliera provided seems hell-bent on being white-european-centrist than to prove anything. Also, there isn't any hot deserts in Europe.

Our in-game world map has
the equator line seems to cross Eorzea above the Black Shroud.

But we don't know if the horizontal axis is well represented in the world map., or even known to Eorzeans.