Rennes Weather & Climate: Best Time to Visit

Visitors to Rennes can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a comfortable 25°C (77°F) in July, the warmest time of the year, to a chilly 10°C (50°F) during cooler months like January.

At night, you can expect temperatures ranging from 14°C (57°F) in July to around 3°C (37°F) during January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Generally, Rennes experiences moderate precipitation patterns, averaging 782 mm (31 in) yearly. Year-round, Rennes has a balanced climate with minimal variation in precipitation. The difference between the wettest month, December, with 78 mm (3.1 in), and the driest month, July, with 53 mm (2.1 in), is minimal. For more details, please visit our Rennes Precipitation page.

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

The average number of days each month with precipitation

Seasonal changes in sunshine hours are quite dramatic in Rennes. While June receives considerable daily sunshine with up to 7.2 hours, December marks the darkest time of the year, where sunshine is scarce with only 2.3 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The city experiences its highest humidity in January, reaching 87%. In June, the humidity drops to its lowest level at 75%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year