Iceland’s Summer Isn’t the Opposite of Winter

If you are wondering what to wear in Iceland for summer hiking, it helps to understand what summer here actually looks like. Many travelers imagine Iceland in winter with snow-covered landscapes, frozen waterfalls, heavy outerwear, and long, dark skies lit by the northern lights. Winter is dramatic and powerful, often shaping how many travelers imagine Iceland.

Then summer arrives, and the landscape shifts.

Daylight stretches late into the evening, casting long golden light across moss-covered lava fields and waterfalls swollen with snowmelt. As the Highlands reopen each summer, geothermal valleys, black-sand stretches, glacier rivers, and wide volcanic plateaus once again become accessible. On classic routes such as the Laugavegur Trail, hikers move through many of these landscapes over several days. It’s a season when Iceland feels expansive and alive, and when many of its most remarkable landscapes can finally be explored on foot.

But summer in Iceland is rarely as warm as people expect. Wind moves steadily across open terrain. Rain passes through quickly, and waterfall spray carries a noticeable chill. In the Highlands, conditions can shift within hours as weather moves quickly across the landscape, and the forecast rarely tells the whole story. Phone reception can also be limited in remote areas, so preparation matters more than checking the weather throughout the day.

Summer does not remove the wind, rain, or cold. It simply makes them part of longer, brighter days. When you are spending long days on the trail, dressing well becomes less about warmth and more about adaptability. The right layers allow you to focus on the landscape, the company around you, and the experience itself.

Iceland’s summer invites you outside. 

Dressing well allows you to stay there.

What Summer Conditions Mean on the Trail

Summer hiking in Iceland means spending long hours outdoors. With extended daylight, days on the trail are rarely rushed. You may begin the morning in cool air, warm slightly as you climb, and then feel the temperature drop again when the wind picks up along an exposed ridge.

Conditions can shift not only from day to day but within a single hike. A clear stretch of sky can turn misty. A calm section of the trail can open into steady wind. Standing near a powerful waterfall or crossing a shallow river can leave your outer layers damp even if it has not rained.

Because of this constant movement and exposure, dressing for summer hiking in Iceland is less about preparing for extreme cold and more about preparing for fluctuation. The goal is not to predict the weather perfectly. It is to adjust comfortably as it changes around you.

Dress for Adaptability, Not Just Temperature

Comfort Comes in Layers

When planning what to wear in Iceland for summer hiking, the most helpful mindset is not choosing a single outfit. It is building layers that can adapt throughout the day.

Conditions on the trail rarely stay the same for long. You may start the morning feeling cool, warm up quickly as you begin moving, and then feel the temperature drop again when the wind picks up or the trail opens onto an exposed ridge.

A moisture-wicking base layer helps regulate body temperature and prevents sweat from cooling against your skin. Cotton may feel comfortable at first, but it holds moisture and can leave you feeling chilled once the wind picks up. Lightweight merino wool or synthetic base layers work best because they dry quickly and stay comfortable even when conditions shift.

A mid-layer provides insulation and traps warmth when needed, especially during breaks or slower sections of the hike. Many hikers rely on a lightweight fleece or an insulated jacket for this layer, as it adds warmth without adding too much weight or bulk.

Finally, a windproof and waterproof outer shell protects against Iceland’s most reliable elements: wind and shifting rain. A fully waterproof jacket with a hood is essential, since the weather can change quickly even when the sky initially looks clear.

Over time, many hikers discover a simple truth about Iceland’s weather: Iceland does not care how carefully you planned your outfit.

It cares whether it is windproof.

That’s why layering matters. It allows you to adjust throughout the day instead of committing to a single temperature.

Get the Free Iceland Summer Hiking Packing List

Boots Over Guesswork

While layering helps you adapt to changing weather, footwear determines how comfortable you feel on the trail itself.

Summer hikes in Iceland move across a surprising variety of terrain. Moss-covered lava fields create soft but uneven ground. Gravel paths can shift underfoot. Areas near waterfalls often stay damp from constant spray, and highland trails may feature rocky volcanic terrain that requires careful footing.

For these reasons, sturdy, waterproof hiking boots with good ankle support are strongly recommended. Good traction is especially helpful on Iceland’s volcanic rock and gravel trails, which can be uneven or damp near waterfalls and river crossings. Many hikers prefer mid- or high-ankle waterproof boots for added stability on rocky terrain. Wool hiking socks are also worth bringing, along with a spare pair in your daypack, since changing into dry socks can make a long hiking day far more comfortable.

Trail running shoes can be worn at your own discretion, but they offer less support. When the ground becomes rocky, wet, or uneven, stability matters.

River Crossings Are Part of the Experience

Plan for Water

Good footwear becomes even more important once you reach the rivers.
On many multi-day hiking routes in Iceland, river crossings are a natural part of the landscape. Even in summer, these rivers are often fed by melting glaciers, which means the water can be extremely cold.

On well-known highland routes such as the Laugavegur Trail, hikers may cross several glacial streams

Because of this, many hikers prepare for crossings with a small change of footwear. Neoprene socks paired with sturdy sandals or river shoes are a common choice, since neoprene helps insulate your feet from cold glacial water while sandals or river shoes provide grip on uneven riverbeds.

Some hikers also choose to carry lightweight camp shoes or sandals specifically for river crossings so their hiking boots stay dry for the rest of the trail. Trekking poles can also add stability when stepping across rocky or uneven riverbeds.

What Goes in Your Daypack

You Carry What You Need for the Day

On many multi-day hiking routes in Iceland, you will not have access to your main duffel bag during the day. Luggage is typically transported ahead to the next hut or accommodation, which means everything you need while hiking must fit comfortably in your daypack. It’s a detail many hikers don’t think about at first, but once the trail begins, your daypack quickly becomes your most important piece of gear.

For most hikers, a pack in the 25–40 liter range provides enough space for the essentials while still feeling manageable on the trail.

Because conditions can shift quickly throughout the day, your daypack should always include a few key layers and basic supplies. Waterproof outer layers are important to keep within reach, along with a warm hat and gloves for windier sections of the trail. Sunglasses and sunscreen are also helpful, especially on clear days when light reflects off water, rock, and open terrain.

A refillable water bottle, snacks, and an extra insulating layer, such as a fleece or lightweight down jacket, can also make long hiking days far more comfortable. Many hikers carry a few small extras, including lip balm, a compact first-aid kit, and a dry bag to protect electronics. 

Our Summer Hiking Packing List for Iceland separates main luggage from daypack essentials in a simple downloadable checklist so nothing important gets overlooked.

Small Details That Make a Big Difference

A few small packing choices can make the entire experience smoother once you arrive in Iceland. Many hikers choose a soft duffel bag instead of a hard suitcase, since flexible luggage is easier to transport between vehicles, accommodations, and mountain huts.

For multi-day hikes, a sleeping bag and a small travel pillow can make hut nights far more comfortable. Because mountain huts are simple and communal, many hikers also appreciate having comfortable layers to change into after a long day on the trail, such as warm socks or lightweight camp clothing.

Late summer departures may also benefit from a lightweight headlamp or flashlight, especially as daylight begins to shorten.

Simple hygiene items, extra socks, and small comforts are often the things hikers appreciate most after long days on the trail. A little preparation makes packing far easier before the trip begins.

To make preparation easier, we created a simple printable guide designed specifically for summer hiking in Iceland. The guide separates trail gear, daypack essentials, and overnight items so you can prepare confidently for both day hikes and multi-day treks.

Summer hiking in Iceland is not just about reaching a destination. It is about moving through landscapes that constantly shift with light, weather, and terrain. One moment, you may be walking across moss-covered lava fields. Next, you are standing beside a waterfall or crossing a quiet stretch of open highland trail.

When your clothing and gear work with the environment rather than against it, your attention naturally shifts from the weather to the landscape itself.

When you are dressed well, you stop thinking about the wind and rain and start noticing the world around you.

Written by the Viking Women team.