Iceland’s weather can shift dramatically within a single day, regardless of season. The key is layering and waterproofing, not packing for a specific temperature.
The layering system
A moisture-wicking base layer, an insulating mid layer (fleece or light down), and a waterproof, windproof outer shell. This combination works from summer evenings to winter days — you add or remove layers rather than packing entirely different wardrobes.
Footwear
Waterproof hiking boots with good ankle support are worth it even if you’re not doing serious hikes — many short walks to waterfalls and viewpoints cross wet, uneven ground. In winter, pack microspikes or crampons for icy paths.
Small items that matter
A reusable water bottle (Iceland’s tap water is excellent), a swimsuit and quick-dry towel for hot springs and pools, a headlamp in winter, and a portable phone charger for long driving days with GPS running.
What you can skip
You don’t need an umbrella — wind makes them useless — and you generally don’t need formal clothing. Icelandic dress code, even in nicer Reykjavik restaurants, is casual.
About Erika Sand
Erika has spent the last decade driving, hiking, and hot-spring-hopping across Iceland in every season. She writes NRF.is’s itineraries, guides, and trip reports to help travelers see the country safely, affordably, and without the tourist-trap detours.