North africa is hotter than most of africa but the heat is different. Humidity makes a big difference. Africa along the equator is especially hot and humid.North Africa is a lot hotter than most parts of the Horn and yet they were wore it.Most Somalis were either nomads or farmers and couldn’t afford Indian/Arab armour. These were reserved for settled elites and some of the elites of the nomadic clans across the HOA.
Even in Western Eurasia for most of it’s history.Armor was mostly reserved elites