Typically the average temperate in Avellino in December is 6. You can expect a high of 12 degrees with a low of 4 celsius. We have put some more information here:
| Month | Degrees Celsius |
|---|---|
| Temperature | 6 |
| High Temperature | 12 |
| Low Temperature | 4 |
| Sunshine Per Day | 4 |
Useful Links: Avellino Weather: Average Weather & Yearly Climate