A lower bound to temperature is absolute zero, defined as 0.00 K on the Kelvin scale, an absolute thermodynamic temperature scale. This corresponds to −273.15 °C on the Celsius scale, −459.67 °F on the Fahrenheit scale, and 0.00 °R on the Rankine scale.

What is considered cold in C?

When the temperature is negative, i.e. below 0 °C, then we know that it is so cold that water will freeze. Water will always be ice below 0 °C, liquid from 1 to 99 °C, and steam from 100 °C upwards.

Is 27 Celsius hot or cold?

11–16 is cool, and 17–27 is warm. I would call 28+ degrees hot. For humidity from 50–100, from 1–4 degrees, I would call it freezing, 5–10 degrees is cold, and 11–16 cool. 17–25 warm, and 26+ to be hot.