The temperatures in Gruissan in January are quite cold with temperatures between 6°C and 11°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Gruissan during the month of January. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Gruissan in January 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.
Temperatures
11° / 6°
Rainy Days
4
Snowy Days
0
Dry Days
26
Rainfall
64
mm
Sun Hours
9.9
Hrs
