Iceland presents specific packing requirements driven by its location at 64°N latitude and the influence of the Irminger Current moderating what would otherwise be subarctic conditions. Reykjavík records average January temperatures of minus 0.5°C and July averages of 11°C. The weather changes rapidly due to low-pressure systems tracking across the Atlantic Ocean and the island's position where polar and temperate air masses meet. Visitors experience four seasons in a single day regularly. The sun does not set from mid-May to late July in northern areas including Akureyri and rises only briefly above the horizon in December and January throughout the country. These factors determine what clothing and equipment function effectively.
Layering works because it addresses the temperature range within one day. A base layer of merino wool or synthetic fabric manages moisture against skin. Icelanders prefer merino for multi-day wear without washing since accommodations outside Reykjavík may lack laundry facilities. A midlayer fleece or wool sweater provides insulation. The outer shell must be waterproof and windproof rated to at least 10000mm water column pressure. Iceland receives 1300mm to 4000mm of precipitation annually depending on location, with south-facing coasts including the area near Skógafoss receiving the highest amounts. Wind accelerates heat loss. Reykjavík records average wind speeds of 5.4 meters per second but gusts exceeding 20 meters per second occur monthly. The Central Highlands experience stronger sustained winds. A shell jacket without waterproofing fails within hours.
Footwear requirements divide by activity. Walking in Reykjavík requires waterproof shoes or boots with good tread since sidewalks become slippery when wet. Visiting natural sites including Gullfoss, Seljalandsfoss, and Reynisfjara demands hiking boots with ankle support and vibram or equivalent rubber soles. Trails around Dettifoss and paths in Þingvellir National Park include loose gravel, wet rocks, and uneven lava fields. Ice forms on paths from September through May. Microspikes or crampons that strap over boots provide traction on icy surfaces and are necessary for glacier walks. Tour operators providing glacier hikes on Vatnajökull, Langjökull, or Snæfellsjökull supply crampons and ice axes but require participants to bring hiking boots with firm soles that accept crampon bindings. Boots must have minimal flex. Trail runners and soft hiking shoes are incompatible with crampon systems.
Waterproof pants protect against rain and spray near waterfalls. Visitors walk behind Seljalandsfoss, and the waterfall produces heavy spray that soaks through non-waterproof fabrics in seconds. Jökulsárlón and Diamond Beach generate wind-driven spray from wave action. Pants should have full-length side zippers for putting on over boots without removal. Gaiters keep water and volcanic sand out of boots when walking on black sand beaches including Reynisfjara. The sand is fine basalt particles that penetrate footwear and cause blisters.
Gloves and hats remain necessary year-round. Summer visitors need light gloves and a warm hat for early morning and evening, particularly in northern regions near Akureyri or when visiting the Central Highlands where elevation increases cooling. Winter requires insulated gloves rated to at least minus 10°C and a hat covering ears. Wool retains insulating properties when wet unlike down or synthetic fills that collapse. Icelanders wear wool sweaters in traditional patterns, and these provide effective insulation, but modern fleece performs identically at lower weight.
Sunglasses and sunscreen address the extended daylight period and reflection off snow, ice, and water. The sun remains above the horizon for 21 hours in Reykjavík during late June. Glaciers including Vatnajökull, Mýrdalsjökull, and Langjökull reflect UV radiation intensely. Snow blindness occurs without eye protection. Sunscreen SPF 30 minimum prevents burns during summer months. Winter visitors also need sun protection since snow cover persists and UV reflects even when the sun stays low.
A swimsuit belongs in every bag because geothermal pools exist throughout Iceland. The Blue Lagoon near Reykjanesbær operates year-round with water temperatures of 37°C to 39°C. Public pools in Reykjavík, Akureyri, and most towns maintain water at 28°C to 29°C with attached hot tubs at 38°C to 42°C. Natural hot springs including those at Landmannalaugar and Hverir require swimsuits. Most accommodations and campsites near geothermal areas provide access to hot water bathing. Icelanders swim outdoors throughout winter. A towel is necessary since facilities do not always provide them.
Electronics need specific protection and power adaptation. Iceland uses Type F electrical outlets with 230V at 50Hz. Plug adapters are required for devices from countries using other standards. Waterproof cases or dry bags protect cameras and phones from rain and spray. Moisture damages electronics rapidly in humid conditions near geothermal areas including Geysir and Strokkur, which erupt every 5 to 10 minutes and create steam clouds. Extra batteries or power banks compensate for reduced battery life in cold temperatures. Lithium-ion batteries lose 20 percent capacity at 0°C and more at lower temperatures common in winter.
A headlamp or flashlight serves multiple purposes. Winter darkness lasts 19 hours in Reykjavík during December solstice. Northern areas including Grímsey on the Arctic Circle experience polar night when the sun does not rise. Travelers driving between sites or walking after dark need personal lighting. Some hiking trails in Vatnajökull National Park and routes through the Westfjords lack artificial lighting entirely. Cave exploration including lava tubes near Reykjavík requires lights. Headlamps keep hands free for camera use, walking poles, or scrambling over rocks.
Driving the Ring Road or F-roads into the Central Highlands requires additional equipment. A paper map or downloaded GPS maps provide navigation since mobile signal coverage does not reach the interior. The highlands including routes to Landmannalaugar, Askja, and Lakagígar have no cell service. Road conditions change and GPS navigation systems sometimes route drivers onto closed or impassable roads. Rental car agencies prohibit driving on F-roads without four-wheel drive vehicles. Even with appropriate vehicles, drivers need experience with river crossings, as bridges do not exist on many highland routes. The Icelandic Road Administration maintains a website with real-time road status. A physical copy of important phone numbers including emergency services at 112 and the Icelandic Association for Search and Rescue helps if phone batteries die.
Reusable water bottles reduce costs since Icelandic tap water comes from glacial and spring sources and is potable everywhere. Bottled water is expensive and unnecessary. Restaurants and accommodations provide tap water without charge. The water has no chlorine taste and is often colder and cleaner than bottled varieties. Filling bottles before entering national parks and remote areas including Þórsmörk and Hornstrandir avoids carrying excess weight while ensuring hydration.
Insect protection applies only to specific areas and times. Midges breed around Mývatn and appear in large swarms from June through August. The midges do not bite but enter eyes, ears, nose, and mouth. A head net weighing 20 grams prevents this. Midges do not occur in Reykjavík, the Reykjanes Peninsula, or most coastal areas. No mosquitoes live in Iceland. Ticks do not inhabit the island.
Cash and cards both function but with limitations. Credit and debit cards work in all towns including Reykjavík, Akureyri, Selfoss, and tourist sites. Remote areas including some farms offering accommodation and small roadside shops accept cash only. Icelandic króna is the currency. ATMs exist in all towns with populations above 1000. Some parking areas at natural sites including Þingvellir National Park, Jökulsárlón, and Skógafoss use automated payment systems requiring chip-enabled credit cards. Contactless payment works widely. Carrying 10000 to 20000 króna in cash covers situations where cards fail.
A dry bag or waterproof backpack protects gear during boat trips and glacier hikes. Tours to Jökulsárlón glacial lagoon and whale watching from Húsavík and Reykjavík involve spray. Guides on glacier hikes cannot guarantee equipment stays dry. A 20-liter dry bag holds a camera, extra layers, and food while keeping contents accessible and protected.