Generally, average daily wearther in Jervis Bay for the month of December is 18. Highs are around 25 and low around 14 celsius. The table below includes more detail:
| Month | Degrees Celsius |
|---|---|
| Temperature | 18 |
| High Temperature | 25 |
| Low Temperature | 14 |
Useful Links: Jervis Bay Weather: Average Weather & Yearly Climate