Also, the "method" I used is neither very sound nor in any way scientific. Just a very subjective level of comfort for me.
Allow me to add some clarity: I listed the lowest daytime temperature of ANY day of Jan/July, not avg temperature in a month.
According to that method Austin is 9/35.
Sub-25 Celsius is a temperature I find comfortable enough. And looking through the data Austin looks like it's good enough from late October through mid-April, so that's about 5.5 months of nice enough weather in my opinion. But a very hot summer is not something I like.
I'll be spending this winter in Vietnam, not so much for the comfort of it, but to travel and catch up with a few friends that relocated there.
> More than 25 percent of Africa is desert. Sahara is not the only desert in Africa.
Deserts also get extremely cold.
Why there's no vegetation ? Because there's hot during the day.
This is where I grew up: https://en.wikipedia.org/wiki/Novosibirsk#Climate
Them deserts got nothing on Siberia.
I'm all too familiar with +30 Summer, -30 Winter swings, and those are far from pleasant.
More than 25 percent of Africa is desert. Sahara is not the only desert in Africa.
Checked the forecasts of 10 largest cities in Africa, lowest avg. daily temperatures in Jan/July in Celsius.
Lagos: 30/26
Kinshasa: 27/29
Cairo: 18/34
Johannesburg: 24/14
Khartoum: 29/35
Dar es Salaam: 30/24
Alexandria: 16/26
Abidjan: 29/25
Algiers: 13/28
Kano: 21/26
The 4 sub-20 cities are either coastal cities or very close to the coast, those away from seas/oceans are what can be accurately described as "hot".
> most of sub-saharan africa has moderate temperatures
That climate map is deceptive. It may lead you to believe that "blue" areas are very cool, yet Kinshasa is in Congo, the country with the most blue/deep blue color on that climate map.
Kindu, a 172 000 town closest to the deep blue area on that map is 24/28, not the coolest place on Earth.