Daylight
4–5h
Sunrise ~11:22, sunset ~15:29 (Reykjavík, winter solstice Dec 21). Shortest day ~4 hrs. Plan outdoor activities 11:00–15:00.
Weather
Iceland Weather in December: Darkest Month, Festive Season
The darkest month: festive Reykjavík, cozy cafés, and aurora chances on clear nights.
Temperatures
-2 to 3°C (28–37°F)
Avg precipitation 79 mm, avg wind 25 km/h. Snow likely everywhere. Blizzards possible; storms can last 1–3 days. Wind chill to -15°C.
Vibe
Festive darkness
Holiday lights, warm pools, and dark skies.
Best for
- Northern lights: 20 hours of darkness, prime viewing on clear nights
- Ice cave tours in Vatnajökull glacier (peak season)
- Icelandic Christmas traditions: 13 Yule Lads arrive Dec 12–24
- New Year's Eve in Reykjavík: fireworks and bonfires
- Hot springs and lagoons (Blue Lagoon, Sky Lagoon, Mývatn Nature Baths)
- Glacier hiking on Sólheimajökull or Svínafellsjökull (year-round)
Pack list
- Thermal base layer (merino wool) + insulated midlayer (down or fleece)
- Waterproof windproof outer shell (Gore-Tex or similar)
- Waterproof insulated boots with good grip + microspikes/crampons
- Warm gloves (2 pairs), beanie, buff/balaclava
- Hand warmers and headlamp (essential for 20-hour darkness)
- Swimsuit for hot springs and lagoons
Planning help
December Weather FAQs
Quick answers with safety notes where it matters.