What your body considers cold depends on what it is used to. My body is used to Texas weather and I consider 10 c (50 f) to be hoodie and pant weather.
You might consider that to mean my body is used to a very hot temperature. But I've been on trips to places closer to the equator where, at 18 c (65 f), I would be wearing shorts and the locals are wearing their thickest sweaters (which are pretty light by my standards).
There are Siberians out there who might consider what you consider to be cold to not be that cold.
No, 30 degrees is freezing temperature. 10 Degrees is below freezing. It should be very cold and chilly and these people should take the proper precautions, such as wearing coats and snow pants.
It's easy to convert though. (212-32)/100 = 1.8. So you multiply your temperature in C by 1.8, and then add 32, and you have your temperature in Fahrenheit. So if it's 30C out, (30*1.8) +32 = 86F.
It is, admittedly, easier to convert centimeters to inches; that conversion is exactly 2.54cm/in.
You don't need to do a conversion, you can just learn them intuitively. 0 is dangerously cold, 10 is cold, 20 is comfortable, 30 is hot, 40 is dangerously hot.
Whoah there, 20c° is shorts weather, let’s not get carried away. In winter, it’s a comfy setting for the thermostat (speaking from New England). If it were 32c°, I’m sitting inside in air conditioning
A lot of it is individual adaptation. People in colder climates may wear clothing very similar to people in warmer climates, but are just used to the colder temperatures. Someone from a colder country would probably end up getting heat stroke in your country while wearing the same clothing as you.
30c is the perfect temperature. It's not hot it's nice. 40c is fine if you drink water and use shade. It's like saying 5c is dangerous bc it can kill you if you don't wear a jacket.
0 is when snow turns to ice, so slipping becomes a thing to be aware of. But more like -5 to -10 degrees since direct sunlight tends to melt it. It's not really that cold unless you're sitting naked outside.
+20 to +25 is the perfect temperature
Below is cold, above is hot
At 0, snow and ice form, so +10 is in the middle between your regular room temperature and freezing (i.e. jacket weather)
+30 is the kind of weather when you better be naked or wearing lightest of clothes or you're gonna get baked over time. Not deadly by any means, but highly uncomfortable.
-20° to -10° is full parka weather. Your breath freezes on your clothes and moisture in the air dries up.
-10° to 0° is winter coat and scarf weather. Damp cold. Snow and ice but you don't feel like your eyeballs are freezing.
0° to 10° Jacket weather. Early spring temps. Pretty mild in either direction.
10° - 20° Hoodie and t-shirt to taste. Basically the comfortable human range for most.
20°- 30° T-shirt time. Anything above 25 is solidly in swimming weather territory.
30°- 40° Time to seek some shade. Heatstroke and heat exhaustion are variable in this range the low end is a health risk for seniors the high end is a risk for even the hardcore heat lovers in their prime.
Cº is the final boss of the C family of programming languages, once you've sharpened your senses to an objective double plus level of holy, minus any rust, you can finally get the degree.
Pfffffft of course I know what C is. It's the third letter of the English alphabet! CC is for needles and CCC is probably boobs or something. And Cs is what allows people go get degrees. (/J)
