What Clothes to Wear in Iceland in September?

Iceland is a stunning country with a unique climate, making it a popular destination for adventurous travelers.

However, its weather can be unpredictable, especially in September.

This month marks the transition from summer to fall, and while the temperatures aren’t as cold as winter, they can still be chilly, wet, and windy.

Knowing what to wear in Iceland in September can ensure that you're comfortable, warm, and ready for the elements while still looking stylish.

Why September in Iceland is Unique

September in Iceland marks the beginning of fall. The temperatures can vary dramatically, ranging from mild days to colder nights, and rainfall is common.

This month also sees longer daylight hours than winter months, but the nights are starting to grow longer.

You might experience everything from sunshine to rain, wind, and even the first dustings of snow on higher ground.

Because of the unpredictable nature of Icelandic weather, layering is the key to staying comfortable.

Here’s a breakdown of what to wear to ensure you’re well-equipped for your Icelandic adventure.

Base Layer:

The base layer is your first line of defense against the cold, so investing in high-quality materials is important.

This layer is responsible for wicking moisture away from your body, which is crucial when you're active or caught in a rain shower.

Thermal Tops and Bottoms

A good thermal shirt and long underwear will keep you comfortable throughout the day.

Merino wool is a great choice, as it's breathable, moisture-wicking, and naturally odor-resistant.

It also provides excellent insulation, even when wet, so it's perfect for Iceland's fluctuating conditions.

Look for a moisture-wicking, close-fitting merino wool base layer, as it will regulate your temperature without adding bulk.

Moisture-Wicking Socks

Wet feet can quickly ruin your day in Iceland's unpredictable climate, so packing several pairs of moisture-wicking socks is crucial.

Merino wool socks or synthetic options designed for hiking are ideal.

They dry faster than cotton socks, so your feet will stay warm and dry, even if you encounter some rain or mud.

Mid Layer:

The mid-layer's job is to provide warmth while still being breathable. Iceland’s temperatures in September can vary throughout the day, so having an adaptable mid-layer is key to staying comfortable.

Fleece or Wool Sweater

A fleece jacket or wool sweater is perfect for this purpose.

Fleece is lightweight and warm, while wool (like a chunky Icelandic wool sweater) provides excellent insulation even in damp conditions.

If you're planning on doing a lot of hiking or exploring, opt for a breathable fleece that allows sweat to escape, preventing overheating.

Insulated Vest or Jacket

If you're staying warm through the day and anticipating colder evenings, a lightweight insulated jacket or vest can make all the difference.

A good option for Iceland’s September weather would be a windproof and water-resistant insulated jacket.

Outer Layer:

The outer layer is essential for protecting you from Iceland’s harshest weather.

Wind, rain, and even snow can be expected in September, so it’s important to have a reliable waterproof, windproof, and breathable jacket to keep you dry and warm.

Waterproof and Windproof Jacket

A high-quality waterproof and windproof jacket is an absolute must.

A jacket with adjustable cuffs and a hood is also helpful for keeping the elements at bay.

A jacket with zippers or vents for added breathability is a great idea if you're planning on hiking or staying active.

Waterproof Pants

If you’re planning on spending a lot of time outdoors in Iceland, a pair of waterproof pants can keep you dry during rain showers and wet conditions.

You can wear them over your regular pants or base layer.

Many outdoor gear brands make lightweight, packable rain pants that fold into a small pouch for easy storage.

Pants and Bottoms

The right pants are essential for staying warm, dry, and comfortable in Iceland’s unpredictable weather.

Waterproof Pants

Waterproof pants are a must-have, especially if you plan on doing any hiking or spending time in the elements.

Whether it’s a sudden downpour or crossing a muddy river, waterproof pants will ensure you stay dry and comfortable.

Look for pants that are lightweight but durable, with the option to pack them away if the weather turns dry.

Fleece-Lined Pants

If you’re planning to spend time outdoors in cooler weather, fleece-lined pants are a great choice.

These provide warmth without the need for bulky layers and work well for hiking or sightseeing.

Jeans or Casual Pants

On milder days when the temperature is more forgiving, a pair of durable jeans or casual pants can work.

However, avoid wearing jeans in wet conditions, as they absorb moisture and can take a long time to dry.

Conclusion

Iceland in September offers an exciting mix of fall beauty and unpredictable weather.

By packing the right clothes, you’ll be prepared for any weather conditions, from chilly mornings to sudden rain showers.

Layer up with breathable base layers, warm mid-layers, and waterproof outer layers to stay comfortable while exploring this stunning country.

With the right gear, you can fully embrace all that Iceland has to offer, no matter the weather.