Apparent Temperature Calculator

Formula

The formula to calculate the apparent temperature is:

\[ \text{AT} = T_a + 0.348e - 0.70ws + 0.70\left(\frac{Q}{ws + 10}\right) - 4.25 \]

Where:

\(\text{AT}\) is the apparent temperature (°C)
\(T_a\) 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 (W/m²)

What is Apparent Temperature?

Apparent temperature is a temperature that it “feels” like in an environment due to the true temperature, humidity, and wind chill. It is calculated using the formula provided, which takes into account these factors to give a more accurate representation of how the temperature feels to humans.

Example Calculation

Example:

Dry Bulb Temperature: 30 °C
Humidity: 20 hPa
Wind Speed: 5 m/s
Net Radiation: 200 W/m²

Calculation:

\[ \text{AT} = 30 + 0.348 \times 20 - 0.70 \times 5 + 0.70 \left(\frac{200}{5 + 10}\right) - 4.25 = 38.54 \text{ °C} \]