The maps of Toril I’ve seen show the north-most regions as icy, and the the most southern as deserts. Are the south parts near the equator? Are we only seeing the northern hemisphere? To answer your questions, in order:
Yes.
Pretty much.
(There've been a few "global continent view" maps, and one or two of them have even been official as opposed to fan-made, but they are all inaccurate, incomplete, and of course the projections used always distort.#Realmslore— Ed Greenwood (@TheEdVerse) July 13, 2020