Normally average temperatures in Gruissan in October is 15. Through the month the highs are about 21 and low around 13 degrees. For more context we have put some more information below:
| Month | Degrees Celsius |
|---|---|
| Temperature | 15 |
| High Temperature | 21 |
| Low Temperature | 13 |
Useful Links: Gruissan Weather: Average Weather & Yearly Climate