Summer heat and humidity can make getting dressed tricky. The right fabrics and fits keep you cooler and more comfortable.
Quick take
- Health Canada recommends loose-fitting, light-coloured clothing made of breathable fabric in extreme heat.
- Linen and lightweight cotton breathe well; many synthetics trap heat and moisture.
- A wide-brimmed hat protects your face, ears and neck from the sun.
- In extreme heat, staying cool and hydrated matters more than any outfit.
When it’s hot and humid, the wrong clothes can make you miserable. A few choices make a big difference to comfort.
Health Canada’s advice
Health Canada recommends wearing loose-fitting, light-coloured clothing made of breathable fabric during extreme heat, and protecting yourself from the sun with a wide-brimmed hat or an umbrella.
Fabrics that help
| Fabric | Why it works |
|---|---|
| Linen | Very breathable; dries quickly |
| Lightweight cotton | Soft and breathable; absorbs sweat |
| Seersucker | Puckered texture keeps fabric off the skin |
| Lightweight wool | Surprisingly breathable for smart summer clothes |
| Technical sports fabrics | Wick sweat during exercise |
Heavier synthetics and tight fits trap heat and moisture against your skin.
Outfit ideas
- Everyday: linen shirt, light chinos or shorts, canvas sneakers or sandals.
- Office: breathable trousers or a midi skirt, cotton blouse, unlined blazer you can remove.
- Weekend: loose sundress or wide-leg linen trousers, wide-brimmed hat.
- Evening: a light, loose dress or a linen shirt with tailored shorts.
Style tip
Choose looser fits on hot days. Air moving between your clothes and your skin helps sweat evaporate and keeps you cooler.
Protect your skin
Clothing, a hat and sunglasses are part of sun protection, along with sunscreen on exposed skin. Seek shade during the hottest part of the day.
Stay safe
Extreme heat can be dangerous. Drink plenty of water, take breaks in cool places and watch for signs of heat illness, such as dizziness, nausea, headache or confusion. Call 9-1-1 if someone has a very high body temperature, is confused or unconscious, or stops sweating.
Through the seasons
Summer pieces can carry into spring and fall with a layer on top. Our guides to transitional outfits and wardrobe essentials show how to make them work year-round.
Your style questions
Is linen worth it if it creases?
For hot, humid days, yes. It’s one of the most breathable fabrics, and slight creasing is part of its relaxed look.
Are dark colours hotter?
Dark colours absorb more sunlight, which is why light colours are usually recommended in strong sun.
What about workplaces with dress codes?
Choose breathable versions of the usual pieces, such as linen or lightweight wool trousers, cotton shirts and unlined blazers.
