Enter the dry bulb temperature, humidity, wind speed, and net radiation absorbed per area to determine the apparent temperature.

## Apparent Temperature Formula

The following formula is used to calculate an apparent temperature.

AT = Ta + .348*e – .70*ws+.70*(Q/ws+10) – 4.25

- Where AT is the apparent temperature (C)
- Ta is the dry bulb temperature (C)
- e is the humidity (hPa)
- ws is the wind speed (m/s)
- Q is the net radiation absorbed per unit of body surface area.

## Apparent Temperature Definition

An apparent temperature is the temperature that it “feels” like in an environment due to the true temperature, humidity, and wind chill.

## How is apparent temperature calculated?

An apparent temperature is calculated using the formula AT = Ta + .348*e – .70*ws+.70*(Q/ws+10) – 4.25. This formula takes into account the true temperature along with the wind chill, humidity, and radiation absorbed.

## What is reflected apparent temperature?

A reflected apparent temperature is a temperature felt off of a reflected surface due to the energy of the photons reflected.

## Apparent Temperature Example

How to calculate an apparent temperature?

**First, determine the dry bulb temperature.**Measure the dry bulb temperature.

**Next, determine the humidity.**Calculate the humidity. You can used the calculate linked above for more help.

**Next, determine the wind speed.**Measure the wind speed.

**Next, determine the radiation absorbed per unit area.**This is energy absorbed per unit area.

**Finally, calculate the apparent temperature.**Calculate the apparent temperature using the equation above.

## FAQ

**Why does it feel hotter than it says on the thermometer?**

The reason it feels hotter than the temperature in some situations is because of the effect of wind and humidity has on the human bodies ability to cool down.

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