What to Wear in a Heatwave: Staying Cool When Summer Turns Up the Heat

Heatwaves seem to be a part of summer nowadays. They hit you unexpectedly, and one morning you don’t have anything appropriate to wear — so most of the time, you end up wearing the wrong clothes.

I’ll never forget standing on a train platform last July, sweat pooling under a top I swore was “breathable,” wondering why I’d even bothered getting dressed that morning and fighting for my life. That’s the day I started actually checking the fabric tag first. If you’ve ever felt your outfit fighting against you the second you stepped outside during a heatwave, you know exactly what I mean.

The truth is, dressing for extreme heat is its own skill, and most of us never really learn it until we’re forced to. Over the years (and more than a few sweaty commutes), I’ve figured out which pieces actually hold up when the temperature climbs and which ones just look good in theory. So here’s everything I reach for now when a heatwave rolls in, fabrics, fits, and all the little extras that have saved me more than once. Let’s discover what to wear in a heatwave.

Heatwave Essentials

Natural fibers and loose clothing are the best options on a hot day. Natural fibers let air circulate around your body and don’t trap heat. Loose clothing also lets you breathe. When choosing what to wear, pick linen and cotton — oversized tees, shirts, and dresses. These will give you maximum relief on a hot day.

Beyond the clothes themselves, a few extra essentials can make a real difference when temperatures spike. A wide-brim hat keeps direct sun off your face and neck, while polarized sunglasses cut down glare and protect your eyes during the brightest part of the day.

A high-SPF sunscreen is non-negotiable no matter what you’re wearing, and reapplying every couple of hours matters more than people think during a real heatwave. Keep a refillable water bottle on hand too, since staying hydrated does just as much for how you feel as any outfit choice.

Keep something warm in your bag for spaces that are air-conditioned, especially if you’re planning to stay there for a longer time, like the office. You don’t want to get cold during a heatwave — it’s the worst time to get sick! Been there, done that.

Tops

During a heatwave, your top choice can make or break your whole day. Skip anything tight, dark, or synthetic, since those trap heat against your skin fast. Go for cotton tanks, linen blouses, or loose button-downs in light colors that reflect the sun instead of soaking it in.

Crop tops are also worth considering since less fabric means less heat trapped against your body. The goal is airflow, so anything billowy or oversized is your friend right now.

Bottoms

Satin Shorts for Heat Without the Sticky Feeling

Satin shorts are a heatwave secret weapon because the fabric has a cool, almost slippery feel against your skin, which is exactly what you want when it’s unbearably hot out. They don’t cling the way cotton sometimes does, so you stay comfortable even when you’re sweating through the day.

Pair them with a breathable tank and you’ve got an outfit that won’t feel like a sauna by noon.

Bermuda Shorts for All-Day Coverage

If you need to be outside for hours during a heatwave, bermuda shorts give you a bit more coverage from direct sun while still letting your legs breathe. Their loose fit means there’s no fabric clinging to your skin, which matters a lot when you’re trying to avoid overheating.

They also work well if you’re somewhere with strong sun and want a layer of protection without committing to long pants.

White Skirt for Reflecting the Heat

A white skirt isn’t just a style choice during a heatwave, it’s a practical one. Light colors reflect sunlight instead of absorbing it, which actually helps you feel cooler compared to wearing black or other dark shades. A flowy white skirt in a breathable fabric like cotton or linen is ideal for keeping air moving around your legs.

It’s an easy piece to dress up or down, so you’re not sacrificing style just because you’re dressing for the heat.

Balloon Pants for Surprising Airflow

Balloon pants might look unexpected for heatwave weather, but the loose, rounded shape actually creates a lot of room for air to move around your legs. As long as you pick a lightweight fabric, they can be more breathable than they look, and they keep your skin from getting that sweaty, sticky feeling that tighter pants cause.

Just make sure to size them in a breathable material since the wrong fabric can trap heat instead of letting it escape.

Shoes

Flip Flops for Maximum Airflow

When it comes to keeping your feet cool, flip flops are hard to beat. They’re open, lightweight, and let your feet breathe completely, which makes a real difference when the pavement is practically radiating heat. They’re ideal for quick errands, beach days, or just lounging around during the worst of the heat.

Just be careful on scorching pavement since some materials can heat up fast underfoot.

Kitten Heels for When You Still Need to Dress Up

Even during a heatwave, sometimes you need shoes for a wedding, dinner, or work event. Kitten heels are a smart middle ground since the lower heel keeps you more stable and comfortable than a tall stiletto, especially if you’re walking outside in the heat. They pair easily with breathable bottoms like a white skirt or bermuda shorts so your whole outfit stays heatwave-friendly.

They’re proof that you don’t have to choose between dressing nicely and staying comfortable in extreme temperatures.

Dresses

Linen Dress for the Ultimate Heatwave Staple

If there’s one piece built for heatwave weather, it’s a linen dress. Linen is naturally breathable and lets air flow right through the fabric, which makes a huge difference when the heat index is climbing. It also doesn’t trap moisture against your skin the way heavier fabrics do, so you stay drier and cooler throughout the day.

A loose, relaxed cut works best since you want as much airflow as possible when the temperature spikes.

Maxi Dress for Coverage Without the Heat

A maxi dress seems counterintuitive for hot weather since it covers more skin, but a lightweight, flowy maxi in a breathable fabric can actually be one of your coolest options. The loose fit means the fabric isn’t sticking to your body, and it creates a bit of a breeze effect as you move.

It also protects your legs from direct sun exposure, which is worth considering during the hottest part of a heatwave