Average temperatures within Thessaloniki through the whole of December is 5 with a high of 10 degrees celsius with a low of 3 degrees. We have put some more details below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 5 |
| High Temperature | 10 |
| Low Temperature | 3 |
| Sunshine Per Day | 5 |
Useful Links: Thessaloniki Weather: Average Weather & Yearly Climate