Dinan Weather & Climate: Best Time to Visit

In Dinan, temperatures differ significantly between summer and winter months. Average maximum daytime temperatures range from a comfortable 24°C (75°F) in August, 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 August to around 4°C (39°F) during January.

Check out our detailed temperature page for more information.

Temperature ranges by month

On average, Dinan receives a reasonable amount of rainfall, with an annual precipitation of 811 mm (32 in). Year-round, Dinan has a balanced climate with minimal variation in precipitation. The difference between the wettest month, December, with 79 mm (3.1 in), and the driest month, July, with 58 mm (2.3 in), is minimal. For more details, please visit our Dinan 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 Dinan. While June receives considerable daily sunshine with up to 6.9 hours, December marks the darkest time of the year, where sunshine is scarce with only 2.2 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 October, reaching 85%. In March, the humidity drops to its lowest level at 78%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year