“It’s not cold outside, you’re just not dressed properly.”
– My mother
These words rang in my ears as I walked down Laugavegur Shopping Street the other day. It was a cold November afternoon, about -8°C (17.6°F), but I didn’t feel the frost. However, around me, people were shivering. Most were teenagers—too cool to wear proper outerwear—and ill-prepared tourists.
I know the teenagers can’t be helped. They’ll continue to be literally cool in an attempt to be figuratively cool. However, I thought I might share some wisdom for those about to visit Iceland with sandals in their suitcases.
What Does It Mean When Someone Says “Dress in Layers”?
The most common advice travel advisors and locals give visitors is to “dress in layers.” But what does that actually entail?
The art of layering isn’t just fashion advice; it’s a secret formula for surviving Iceland’s ever-changing weather.
Dressing in layers means wearing multiple pieces of clothing that you can add or remove as needed, sort of like a human onion. The goal is to stay warm, dry, and comfortable, whether the sun is shining, the wind is howling, or the sky suddenly decides to throw ice at you.
What Is the Best Way to Dress in Layers?
Dressing in layers isn’t about piling on every sweater you own—it’s about choosing the right pieces that work together to keep you warm, dry, and comfortable throughout the day. In Iceland, the weather can shift quickly, so your outfit needs to be flexible.
The best way to dress in layers is to think in terms of breathability, insulation, and protection. You want clothing that you can add or remove easily as the weather changes, without ending up too cold or too sweaty.
The easiest way to dress in layers is to use the 3-Layer Rule.
What is the 3-Layer Rule?
As the name suggests, the 3-Layer Rule is a dressing system that can be divided into three parts:
- A moisture-wicking base layer to keep sweat from turning you into an icicle.
- An insulating middle layer to trap warmth (think fleece or wool).
- And a waterproof outer layer to block wind, rain, or the occasional sideways snow.
Get it right, and you’ll be cozy in any weather. Get it wrong, and you might spend the day either freezing or sweating like you’ve just hiked a volcano.
How to Choose Your Base Layer
Your base layer is the first line of defense against the cold—and surprisingly, against sweat. It sits closest to your skin, so its job is to wick moisture away and keep you dry.
In cold climates like Iceland, staying dry is just as important as staying warm. When sweat lingers, it cools you down fast, which can leave you shivering even under layers of insulation.
Look for fabrics like merino wool or synthetic blends such as polyester. These materials are breathable, lightweight, and dry quickly. Avoid cotton at all costs—it holds onto moisture, which can leave you cold and clammy.
Merino wool is a favorite among locals and travelers alike because it regulates temperature, resists odors, and feels soft on the skin.
The right base layer won’t just keep you warm—it’ll keep you comfortable, no matter what Iceland’s weather throws your way.
How to Choose Your Mid-layer
The mid-layer is all about insulation—it’s the warm hug in your layering system. Its job is to trap body heat and keep the cold out, so choosing the right material makes a big difference when you’re exploring Iceland in cold weather.
Fleece and synthetic insulation are the go-to options. Fleece is lightweight, breathable, and works well under a shell, especially for active days like glacier hikes.
Look for materials that trap warmth without adding too much bulk. Fleece is a popular choice: it’s lightweight, breathable, and keeps insulating even when damp. Wool sweaters also make excellent mid-layers, offering natural warmth and softness.
In colder conditions, a lightweight down or synthetic jacket can work too, as long as it fits comfortably under your outer layer and isn’t too bulky.
The key is to choose something you can move in easily. Think warm jumpers (like Lopapeysas), zip-up fleeces, or slim insulated layers. A good mid-layer should keep you cozy without overheating and be easy to take off if you start warming up.
How to Choose Your Outer Layer
The outer layer is your shield—the final barrier between you and whatever the weather decides to throw your way. Rain, wind, sleet, snow… your outermost layer’s job is to keep it all out while letting sweat escape. If your mid-layer is the warmth, your outer layer is the protection.
The best outer layers are waterproof, windproof, and breathable. Look for jackets made with materials like Gore-Tex or similar weather-resistant fabrics. These keep you dry from the outside while allowing moisture from sweat to escape, so you don’t end up soaked from the inside out.
A good outer layer should have sealed seams, a sturdy hood, and enough room to fit comfortably over your other layers.
Avoid heavy winter coats or bulky fashion jackets—they’re often warm, but they rarely breathe well and usually aren’t built for active days outdoors. Instead, go for a lightweight shell jacket that gives you flexibility. The goal is simple: stay dry, stay protected, and stay ready for anything the sky might be planning.
Other Tips for Layering
Layering isn’t just about what you wear—it’s about how you wear it. Once you’ve nailed your base, mid, and outer layers, there are a few extra tricks to keep in mind to stay warm, dry, and comfortable throughout the day.
- Think about your extremities. Warm socks, gloves, a hat, and a neck gaiter or scarf make a big difference. Heat escapes quickly from your head and hands, so don’t let all that good layering go to waste.
- Avoid overdressing. If you’re moving around a lot—like hiking or sightseeing—it’s easy to overheat. Start slightly cool and let your body warm you up.
- Choose zippers over pullovers. Jackets or fleeces with zippers give you better control over temperature and are easier to take off when the weather changes.
- Pack spares. Bring an extra pair of dry socks or a base layer top if you’re out for the day. If one layer gets soaked, you’ll be glad to have a backup.
- Keep it lightweight. Every layer should work with the others, not weigh you down. Look for pieces that are warm but packable so you can adjust as needed.
Layering is part science, part strategy, and a little bit of trial and error. Once you find what works for you, you’ll be ready for whatever weather comes your way.
Adapting Your Layers for the Summer
Yes, even in summer, layering matters—this is Iceland, after all. The sun might be out for most of the day, but the weather is still famously unpredictable. One minute you’re enjoying a calm, sunny hike, and the next you’re pulling your hood up against a sudden gust of wind or passing shower. The trick is to adapt your layers, not abandon them.
In summer, you can usually swap out heavier layers for lighter versions. Your base layer should still be breathable and moisture-wicking—sweat doesn’t care what season it is.
A light fleece or wool jumper makes for a solid mid-layer when the temperature drops in the evening or at higher altitudes. Your outer layer? Still important. Opt for a lightweight, waterproof shell—something packable you can pull out quickly if the sky turns grey.
Summer layering is all about versatility. Stick with pieces you can add or shed easily, and always bring something wind- and rain-resistant, even on the clearest morning. You’ll thank yourself later when the breeze picks up on a black sand beach or the clouds roll in over a glacier lagoon.
What About Your Legs?
While most layering advice focuses on your upper body (where we lose heat the fastest), your legs need a bit of strategy too, especially if you’re spending a lot of time outside. For calm, dry days in town, one pair of warm, weather-resistant trousers might do the trick. But if you’re hiking, glacier walking, or venturing into wind and rain, it’s best to layer.
Start with a thermal base layer—something moisture-wicking like merino wool or synthetic leggings. On top of that, wear insulated or weatherproof trousers that block wind and light rain. And if conditions are wet or snowy, pack a pair of waterproof shell pants you can easily slip over everything else.
And a quick word on jeans: don’t wear them for outdoor activities. They soak up moisture, get heavy, take ages to dry, and will leave you shivering if the weather turns. Save them for evenings indoors or casual city strolls when the forecast is clear.
What Shoes to Bring to Iceland
Although shoes aren’t a part of the layering system, I’ve decided to include a little info about them. Just in case you wandered onto this page in search of a packing list for Iceland.
If you’re only going to pack one pair of shoes for Iceland, make it sturdy, waterproof hiking boots. The weather is unpredictable, and so is the terrain—wet grass, gravel, volcanic sand, maybe even snow. You’ll want something with good grip, ankle support, and enough comfort for long days of walking.
If you have room, pack a second, lighter pair for relaxing indoors or in town. But if space is tight, stick to the boots. Iceland isn’t the place for fancy footwear—practical always wins.
Final Thoughts on Dressing in Layers
Dressing in layers isn’t just a good idea in Iceland—it’s essential. With a smart system of base, mid, and outer layers, you can stay warm, dry, and ready for whatever the weather decides to do. It gives you the freedom to adjust throughout the day, whether you’re hiking up a windy ridge, exploring an ice cave, or enjoying Reykjavík City.
The key is to choose breathable, insulating, and weather-resistant pieces that work together. Add in a few thoughtful extras—like warm socks, gloves, and a good pair of boots—and you’re set. With the right layers, you won’t just endure Iceland’s wild weather—you’ll enjoy every minute of it.
