Wet-bulb looks at temp and humidity. If it's hot enough and there's enough water in the air, then the human body can no longer cool itself by sweating. This is the wet-bulb temperature.
This calculator let's you put in temp and humidity to see if you're in above wet-bulb temperature. It's pretty unusual for humidity and temperature to both be high enough for this to happen, but it's slated to become more common.
Wet-bulb looks at temp and humidity. If it's hot enough and there's enough water in the air, then the human body can no longer cool itself by sweating. This is the wet-bulb temperature.
This calculator let's you put in temp and humidity to see if you're in above wet-bulb temperature. It's pretty unusual for humidity and temperature to both be high enough for this to happen, but it's slated to become more common.