Nigerian dry heat?
have you actually visited?
Eason...if you are serious, and if you are struggling with clothing in a humid, tropical climate like Hong Kong and in fact most of tropical Asia:
Light fabrics like linen and pure cotton are king. I am not sure why there are claims to the contrary, but these fabrics really do breathe...that is, allow air to penetrate through. If you wear them loose, they will allow air circulation under them. What is more, they are natural "wicks"...that is, they will wick away perspiration and moisture from your body, keeping you dry. Loose shirts, loose pants, that kind of simple stuff...think of the stuff in Miami Vice...or those Americans in Latin America in the old movies...loose cotton shirt, loose fitting linen suit, sockless loafers...all in pastel colours with a Panama hat and shades.....
These cloths have been used to make clothes in India and the Far East for centuries, where the climate is like a swamp..and were adopted by foreign visitors to these parts as well. But be careful...the cheap Made in China cotton of today doesn't breathe as well as good-quality traditional cotton. The weaving techniques are different, designed for cheap and rapid rapid rapid production, rather than a soft fabric that drapes like the traditional artisanal stuff. Plus, they are treated with other chemicals as part of the dyeing and post-weaving treatment, which essentially destroys some of the properties of cotton. Some of these chemicals are designed to prevent excessive shedding during the washing process of very cheap cotton weave, prevent colour run-off during washing, etc. Upshot is....100% cotton isn't what 100% cotton meant...those who say things like "Gap 100% cotton shirts make me sweat so much!" are not imagining it! You are better off, on a budget, buying Made in Bangladesh, where the labour is so cheap that artisinal techniques are possible on a mass-production scale (unlike in China today)...plus that area Bengal has been producing cotton and linen and jute since the days of the Pharoahs....so in an ironic way, you get (very relatively, of course) "ok" stuff, made by traditional techniques, for cheap.
There are some denims which breathe also, I am told, but I don't know much about them.
Polyester, rayon and other synthetics have none of these properties. Why are spandex workout clothes made of synthetic polyester--that is the genius of American marketing of brands like Nike, they can figure out ways to sell veal cutlets to a vegetarian! There will come a time in our future when we will look back at this with horror and amusement. Gym shorts and t-shirts used to be pure cotton.
You might wanna think about getting your hair cut more often. I usually go every 5-6 weeks, which I know is quite often, but most hairstyles that are short or mid-length will start looking sloppy by that time.
People with non-straight hair might be able to wait a little longer, but I think every 10 weeks is absolute maximum. Sorry, but every 17 weeks is not enough.