Heat Index Calculator
The heat index is: –°C
Definition: The heat index, or apparent temperature, measures how hot it feels due to combined effects of air temperature and humidity.
| Heat Index | Interpretation |
|---|---|
| 27-32°C | Caution: Fatigue is possible with prolonged exposure and/or physical activity. |
| 32-41°C | Extreme caution: Sunstroke, heat cramps, and heat exhaustion possible with prolonged exposure and/or physical activity. |
| Above 41°C | Danger: Heatstroke/sunstroke likely with continued exposure. |
Reference: This tool is based on the Steadman’s heat index equation