Usually the average weather in Sifnos throughout the month of October is 17 with highs being 21 and lows being 16 degrees celsius. We have put some more detail below here:
| Month | Degrees Celsius |
|---|---|
| Temperature | 17 |
| High Temperature | 21 |
| Low Temperature | 16 |
Useful Links: Sifnos Weather: Average Weather & Yearly Climate