December · typical climate, not a forecast
Reykjavík in December
Iceland
Not your escape
4°C day · 0°C night · 54% rain · 4h daylight · quiet · €1,310 estimated
Live · Reykjavík
–°C
Reading…
Live · Tallinn (you)
–°C
Reading…
Cool Score breakdown
Scored for 5 nights from Tallinn in December.
- Temperature fit0
3.7°C typical high vs your 12–20°C window
w 26 - Heat escape0
3.2°C warmer than Tallinn
w 14 - Rain probability38
54% chance of rain on an average day
w 11 - Daylight hours0
3.6h of daylight mid-month
w 8 - Outdoor conditions17
Comfortable for a full day outside at 3.7°C
w 10 - Crowding62
Quiet for this month
w 8 - Flight + stay cost51
≈€1310 estimated for 5 nights vs €1000 budget
w 12 - Nature access90
9/10 — wild ground within reach
w 6 - City atmosphere74
7/10 urban texture · 8/10 food scene
w 4
Why Reykjavík in December
Summer never really gets warm here — that is the entire point.
- Geothermal lagoons
- Reykjanes lava fields
- Puffin boat trips
What December in Reykjavík is actually like
In December, Reykjavík sits around 4°C by day and drops to about 0°C after dark, so a light layer earns its place in the bag even in high summer. That is roughly 3°C warmer than Tallinn at the same time of year — the difference between planning your day around the shade and simply walking out of the door.
Expect rain on roughly 54% of days, usually passing rather than persistent, and about 4 hours of daylight to spend outside. Crowds are quiet this month, and a 5-night trip from Tallinn works out at around €1,310 including flights, a mid-range stay and everyday spending.
Summer never really gets warm here — that is the entire point. Days here tend to fill up with geothermal lagoons, reykjanes lava fields, puffin boat trips — which is why Reykjavík scores 26 out of 100 for december: not your escape.
Other months
Compare the typical climate month by month.