Click on a day for an hourly weather forecast
The temperatures in Gruissan in December are quite cold with temperatures between 7°C and 12°C, warm clothes are a must.
Gruissan is going to be cold and wet in the month of December. Expect low temperatures and a few days of rain, so be sure to bundle up to avoid catching a cold.
Our weather forecast can give you a great sense of what weather to expect in Gruissan in December 2026.
If you’re planning to visit Gruissan in the near future, we highly recommend that you review the 14 day weather forecast for Gruissan before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 11° / 6° | 4 | 26 | 0 | 64 mm | Ok | Gruissan in January |
| February | 12° / 6° | 3 | 25 | 1 | 48 mm | Ok | Gruissan in February |
| March | 15° / 8° | 4 | 27 | 0 | 76 mm | Good | Gruissan in March |
| April | 17° / 10° | 5 | 25 | 0 | 75 mm | Good | Gruissan in April |
| May | 21° / 14° | 4 | 27 | 0 | 62 mm | Good | Gruissan in May |
| June | 26° / 17° | 3 | 27 | 0 | 44 mm | Perfect | Gruissan in June |
| July | 29° / 20° | 2 | 29 | 0 | 32 mm | Good | Gruissan in July |
| August | 28° / 20° | 2 | 29 | 0 | 36 mm | Perfect | Gruissan in August |
| September | 25° / 17° | 3 | 27 | 0 | 53 mm | Perfect | Gruissan in September |
| October | 20° / 14° | 4 | 27 | 0 | 122 mm | Good | Gruissan in October |
| November | 15° / 10° | 4 | 26 | 0 | 98 mm | Good | Gruissan in November |
| December | 12° / 7° | 2 | 29 | 0 | 36 mm | Ok | Gruissan in December |