Grillon Weather & Climate: Best Time to Visit

Visitors to Grillon can expect significant temperature changes throughout the year. Average daytime temperatures reach a very warm 30°C (86°F) in July. In January, the coolest month of the year, temperatures drop to a chilly 10°C (50°F).

At night, temperatures range from around 18°C (64°F) in July to 2°C (36°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Generally, Grillon experiences moderate precipitation patterns, averaging 833 mm (33 in) yearly. Grillon can be quite wet during November, receiving approximately 112 mm (4.4 in) of precipitation over 11 rainy days.

In contrast, during the driest month (July), you will experience much drier conditions, with 34 mm (1.3 in) of precipitation spread across 6 rainy days. For more details, please visit our Grillon Precipitation page.

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

The average number of days each month with precipitation

Grillon can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 10.8 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 3.0 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 Grillon.

The city experiences its highest humidity in November, reaching 81%. In July, the humidity drops to its lowest level at 62%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year