Humidity vs Temperature — Why Both Matter

Why Temperature Alone Is Not Enough

A day at 30°C in the desert feels completely different from 30°C in the tropics. The difference is humidity — the amount of water vapour in the air.

How Humidity Affects How You Feel

Your body cools itself by sweating. When sweat evaporates from your skin, it carries heat away. In humid air, there is already so much moisture that sweat evaporates slowly — or not at all. You stay hot and clammy.

In dry air, sweat evaporates quickly and efficiently, so the same temperature feels much more comfortable.

Relative Humidity Guide

The Heat Index

Meteorologists combine temperature and humidity into the heat index (or feels-like temperature). At 32°C with 70% humidity, the heat index can reach 41°C — a dangerous level.

Cold Weather and Humidity

Humidity matters in winter too. Humid cold air feels more penetrating than dry cold because moist air conducts heat away from your body faster.

Practical Takeaway

Always check both temperature and humidity (or the feels-like reading) before planning outdoor activities. A 28°C day at 80% humidity is harder on your body than 32°C at 30% humidity.

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See feels-like temperature for any city on Weather Tomorrow.