Generally, average daily wearther in Scilly in the month of December is 7 with usual highs being around 9 with lows about 8. Our table below has the full details:
| Month | Degrees Celsius |
|---|---|
| Temperature | 7 |
| High Temperature | 9 |
| Low Temperature | 8 |
Useful Links: Scilly Weather: Average Weather & Yearly Climate