Heat Index Calculator

Name: Heat Index Calculator
Rating: 5.0 (892 reviews)

Calculate apparent temperature (feels like) from air temperature and humidity.

Calculator

Air Temperature (°C)

Relative Humidity (%)

Result

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India heat wave threshold: ≥40°C on plains. Heat index above 54°C is life-threatening. In peak summer (April–June), Delhi/Rajasthan heat index can exceed 48–52°C. Avoid direct sun 11AM–4PM.