Gruissan Weather & Climate: Best Time to Visit

Depending on the time of the year, temperatures range from comfortable to moderate in Gruissan. Average daytime temperatures reach a comfortable 29°C (84°F) in July. In January, the coolest month of the year, temperatures drop to a moderate 13°C (55°F).

At night, temperatures range from around 20°C (68°F) in July to 5°C (41°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Generally, Gruissan has a moderate amount of precipitation, averaging 705 mm (28 in) of rainfall annually. Gruissan can be quite wet during October, receiving approximately 104 mm (4.1 in) of precipitation over 10 rainy days.

In contrast, during the driest month (July), you will experience much drier conditions, with 21 mm (0.8 in) of precipitation spread across 6 rainy days. For more details, please visit our Gruissan Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Gruissan can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 9.2 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 3.1 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is high throughout the year in Gruissan.

The city experiences its highest humidity in December, reaching 84%. In July, the humidity drops to its lowest level at 64%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year