Frequent average weather in Reykjavik throughout the month of December is 3 with the high being 4 and lows being -1 degrees celsius. We have put some more info below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 3 |
| High Temperature | 4 |
| Low Temperature | -1 |
Useful Links: Reykjavik Weather: Average Weather & Yearly Climate