Board Thread:Lore Discussion/@comment-5241445-20130629173210/@comment-9887604-20130705165543

When they are born does not matter as much as the phasing of the moons, it is referred to as the ja'Kha'Jay also known as the lunar lattices. There are actually Khajiit that closely resemble humans(think Arena). The rare exception is known as a Mane, they are born when the 2 moons align just right and a third moon appears in the sky. There is only one Mane at a time, supposedly a reincarnation of all previous Manes.

Now back to the main question. It is possible that even though Elseweyr is a harsh desert during the day, I am sure it is very cold during the nights. Most desert animals are nocturnal so this would protect them during the cold of night. A light fur would reflect the sunlight to disrupt the absorption of heat, it would also help limit the amount of heat reaching the body. Insulation works both ways.