Typically the weather in Portchester in December is 5 with a general average high of 9 and low average expected to be 4 degrees. We have put some more details below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 5 |
| High Temperature | 9 |
| Low Temperature | 4 |
| Sunshine Per Day | 3 |
Useful Links: Portchester Weather: Average Weather & Yearly Climate