Stay cool in a heatwave
Above 30°C, breathability and sweat-wicking matter most.
In a heatwave, the feels-like matters more than the number. High humidity makes the same 33°C feel far hotter, and sweat won't evaporate. So the key isn't thickness — it's breathability and sweat management.
Thin, loose linen, seersucker or light cotton that doesn't cling keeps you coolest. Light colors absorb less sun, and a quick-dry base layer helps. Indoor A/C is often strong, so carry one thin layer.
Styling tips
- Breathable fabrics like linen/seersucker
- Light colors to reflect heat
- Sleeveless tops and shorts
- Quick-dry base layers
Related temperatures
Related guides
Frequently asked
Which fabric is coolest in a heatwave?
Breathable ones — linen, seersucker, thin cotton. A non-clinging fit lets air move and dries sweat fast.
Should I avoid black in a heatwave?
In direct sun, lighter colors absorb less heat. Indoors, breathability matters more than color.
Do I need a layer for the A/C?
Not outdoors, but café and office air-conditioning runs strong — a thin shirt or cardigan is handy.