People who love summer in SA are crazy.
If you work in any professional setting and see clients, you can't wear shorts and sandles.
You have to go around in your black pants and shoes, etc. Many don't have AC, so now you're steaming warm and sweating and there's nothing you can do about it.
Go to a restaurant?
Most don't have AC running either. Outside is also humid and uncomfortable.
Mozzies and the lord of the flies are on the loose, as has been mentioned.
Do anything physical? Congrats, now you're a bit sweaty for the rest of the day.
Bedtime and you can't get comfortable as a mozzie might just make it inside,
it's too warm, the pillow is warm, if your body parts touch anywhere it's sweating/sticky.
A fan does very little.
You have to run the AC which munches power and makes a noise, dries out the air and drains the batteries in loadshedding times.
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Summer is ASS.
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Winter, none of those problems.
Feel cold? Put on a warmer jacket, warmer socks. A hat / cap also keeps in significant warmth.
If you're still somehow cold you have options:
Go for a quick walk / do some exercise / drink something warm. If you're really cold, add some cayenne pepper to your drink and you'll be steaming.
Any and all problems are solved.