Weather
Average highs sit around 3°C with lows near -1°C. Expect a fair amount of rain, so plan indoor backups.
Crowds & demand
Crowd levels are Moderate for Reykjavík — manageable crowds at the big attractions.
Prices & value
Prices run mid-range this month: prices close to the yearly average.
Events & what’s on
Look out for Northern Lights Season while you’re there.
- Northern Lights Season — Aurora borealis visible on clear dark nights away from city lights.
The verdict
December is a mixed month in Reykjavík. You get 3° / -1°, but manageable crowds at the big attractions. Worth it for the right traveller.
Figures are climate normals and modelled estimates — a planning guide, not a forecast. We separate fact, estimate and recommendation. Updated July 2026
