Brittany Weather by Month: Temperature & Rainfall Guide

Brittany is a region in France. Many people wonder what the weather conditions are in Brittany over the year. What is the best time to visit Brittany?

This page shows the average weather conditions by month in Brittany over the year in: January, February, March, April, May, June, July, August, September, October, November, December.

In January the weather in Brittany ranges from less favorable in Saint Malo to mixed in Carnac. January is a winter month. The average maximum daytime temperatures are low and range from 9°C (48°F) in Cléry-Saint-André to 12°C (54°F) in Plogoff. On average, this month is the coldest month of the year in Brittany.

Find more detailed climate information for Brittany in January here.

In February the weather in Brittany ranges from less favorable in Brest to mixed in Saint Malo. February is a winter month. In Saint Malo you can expect cold maximum average daytime temperatures around 11°C (52°F) and nighttime temperatures around 5°C (41°F).

Find more detailed climate information for Brittany in February here.

In March the weather in Brittany ranges from mixed in Saint Malo to good in Rennes. The temperatures range from low in Trégastel with 12°C (54°F) to moderate in Varennes with 14°C (57°F).

Find more detailed climate information for Brittany in March here.

In April the weather in Brittany ranges from mixed in Perros-Guirec to good in Saint Malo. The average maximum daytime temperatures are moderate and range from 13°C (55°F) in Roscoff to 17°C (63°F) in Varennes.

Find more detailed climate information for Brittany in April here.

In May the weather in Brittany ranges from good in Saint Malo to excellent in Rennes. The temperatures range from moderate in Roscoff with 15°C (59°F) to pleasant in Varennes with 21°C (70°F).

Find more detailed climate information for Brittany in May here.

In June the weather in Brittany ranges from good in Crozon to excellent in Carnac. The temperatures range from moderate in Roscoff with 17°C (63°F) to high in Varennes with 25°C (77°F).

Find more detailed climate information for Brittany in June here.

In July the weather in Brittany ranges from very good in Perros-Guirec to excellent in Saint Malo. July is a summer month. The temperatures range from pleasant in Le Conquet with 18°C (64°F) to high in Varennes with 27°C (81°F).

Find more detailed climate information for Brittany in July here.

In August the weather in Brittany ranges from very good in Crozon to excellent in Saint Malo. August is a summer month. The temperatures range from pleasant in Porspoder with 19°C (66°F) to high in Varennes with 27°C (81°F). On average, this month is the warmest month of the year in Brittany.

Find more detailed climate information for Brittany in August here.

In September the weather in Brittany ranges from very good in Brest to excellent in Saint Malo. September is a summer month. The temperatures range from moderate in Porspoder with 18°C (64°F) to high in Varennes with 23°C (73°F).

Find more detailed climate information for Brittany in September here.

In October the weather in Brittany ranges from mixed in Brest to good in Saint Malo. The temperatures range from moderate in Porspoder with 16°C (61°F) to pleasant in Varennes with 18°C (64°F).

Find more detailed climate information for Brittany in October here.

In November the weather in Brittany ranges from less favorable in Morlaix to good in Carnac. The average maximum daytime temperatures are moderate and range from 12°C (54°F) in Cléry-Saint-André to 15°C (59°F) in Bangor.

Find more detailed climate information for Brittany in November here.

In December the weather in Brittany ranges from less favorable in Saint Malo to mixed in Dinan. December is a winter month. The temperatures range from low in Cléry-Saint-André with 9°C (48°F) to moderate in Cléden-Cap-Sizun with 13°C (55°F).

Find more detailed climate information for Brittany in December here.