Humidex Calculator: How Does Canadian Summer Heat Really Feel?
Humidex turns temperature and humidity into a single number for warm days. Higher values mean the air feels more oppressive.
What is the Humidex Calculator?
Humidex is the Canadian feels-like scale for warm, humid air. Enter temperature in Celsius and humidity and this tool first finds the dew point, then combines it into a humidex value with the standard formula.
How to use it
- Enter your values in the fields provided.
- Click Calculate Humidex.
- Read the result and adjust an input if you want a different outcome.
Worked example
At 30 C and 70 percent humidity, the dew point is about 23.91 C and the humidex about 41.19.
What is the humidex at 30 C and 70 percent humidity?
The dew point works out near 23.91 C, giving a humidex of about 41.19, which feels much hotter than 30 C alone.
Frequently asked questions
What do I enter to get a result?
Fill in every field with your own numbers or choices, then run the tool. Empty number fields count as zero, so check them before you trust the output.
Can I reuse this result elsewhere?
Yes. The result is calculated in your browser from the values you entered, so you can copy the numbers into your own notes or plan.