Having spent time in South Africa and Botswana, in the summer, I can attest that it is hotter here in the summer after taking humidity into consideration.
Believe me, it's still hot and arid and the sun is relentless during the day (very long days, but beautiful nights -- the stars are incredible). There is very little shade and most of that part of the continent is flat and in near-desert like conditions.
I lived directly off the okavango delta which certainly cooled things a bit and added a touch more humidity to the air, but this summer on the eastern seaboard of NA is one of the worst I've experienced.
Believe me, it's still hot and arid and the sun is relentless during the day (very long days, but beautiful nights -- the stars are incredible). There is very little shade and most of that part of the continent is flat and in near-desert like conditions.
I lived directly off the okavango delta which certainly cooled things a bit and added a touch more humidity to the air, but this summer on the eastern seaboard of NA is one of the worst I've experienced.