Normally the average weather in Wellington in the time of December is 14. High average temperature is 19 with low temperatures being around 13 celsius. The table below includes more detail:
| Month | Degrees Celsius |
|---|---|
| Temperature | 14 |
| High Temperature | 19 |
| Low Temperature | 13 |
| Sunshine Per Day | 7 |
Useful Links: Wellington Weather: Average Weather & Yearly Climate