Typically the weather in Hydra through the whole of December is 9 with a normal high in the month being 14 degrees with a low of 7 degrees. For more context we have put some more information below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 9 |
| High Temperature | 14 |
| Low Temperature | 7 |
Useful Links: Hydra Weather: Average Weather & Yearly Climate