Last updated: January 18, 2025
Brittany, France, is characterized by a Cfb Köppen-Geiger climate, which signifies a temperate maritime environment. The region experiences mild winters, with temperatures plummeting to a minimum of -8°C (18°F) in January, while summers can heat up significantly, reaching a maximum of 38°C (101°F) in July. The average annual temperature hovers around 12°C (54°F), reflecting the area's distinctive blend of cool conditions and warm summer days. This climate fosters a diverse ecosystem and influences local agriculture, making Brittany a unique study of maritime climatic effects.
Temperature patterns in Brittany, France exhibit distinct seasonal trends, beginning with cold winter months where January sees minimums dipping to -8°C (18°F) and average temperatures around 7°C (44°F). As spring approaches, temperatures gradually rise, with March marking a notable increase in average temperatures to 9°C (48°F) and maximums reaching 24°C (76°F), creating a more temperate atmosphere. By late spring and early summer, particularly in May and June, the region experiences warmer conditions, with averages climbing to 13°C (56°F) in May and maxes peaking at 36°C (97°F) in June. The height of summer in July boasts the highest temperatures, reaching up to 38°C (101°F), while August maintains pleasant warmth. As autumn arrives, temperatures begin to decline, with September still enjoying maxes around 34°C (93°F) before settling into cooler averages of 13°C (56°F) and 9°C (49°F) in October and November, respectively. The year concludes with crisp winter conditions, as December rounds out the cycle with temperatures near -4°C (25°F).
Vannes experiences a wide temperature range, with a minimum of -7°C (20°F) in March and a maximum of 34°C (94°F) in August, as detailed in the monthly temperatures in Vannes. In contrast, Perros-Guirec has milder temperatures, reaching a minimum of -2°C (29°F) in March and a maximum of 29°C (84°F) in August, according to the monthly temperatures in Perros-Guirec. Similarly, Saint-Malo records a minimum of -2°C (29°F) in March and a maximum of 28°C (83°F) in July, as outlined in the monthly temperatures in Saint-Malo.
Brittany, France, experiences a varied precipitation pattern throughout the year, with monthly rainfall exhibiting notable fluctuations. The wettest months are December and October, accumulating 116 mm (4.6 in) and 100 mm (3.9 in) of rain, respectively, often associated with increased storm activity as winter approaches. Conversely, late spring to early summer sees moderately lower precipitation levels, with June standing out with 89 mm (3.5 in), while July records the least rainfall at 48 mm (1.9 in). This seasonal variability contributes to the dynamic climate of the region, fostering lush landscapes.
The distribution of rainy days also plays a critical role in shaping Brittany's climate, with the region typically experiencing 10 to 16 rainy days each month. January and February start the year with 10 and 13 rainy days, respectively, while the frequency of rain intensifies in late autumn and winter, peaking in December with 16 rainy days. This pattern demonstrates a shift towards wetter months as the year progresses, ensuring a consistent supply of moisture that supports the diverse ecosystems and agricultural practices characteristic of Brittany.
In Brittany, France, the sunshine duration follows a clear seasonal trend, with a noticeable increase as the year progresses from winter to summer. January offers a modest 140 hours of sunlight, gradually rising to 205 hours in February. This upward trajectory continues into spring, where March enjoys 293 hours and April brings an impressive 354 hours. By May, the region experiences a significant boost, reaching 408 hours of sunshine, marking the transitional period into summer when longer days become the norm.
The peak sunshine is recorded during the summer months, with July leading the pack at 426 hours, followed closely by August with 393 hours. However, as the days shorten with the onset of autumn, sunshine hours begin to decrease, dropping to 333 hours in September and further declining to 272 hours in October. The trend continues into winter, with November and December providing only 224 hours and 185 hours, respectively. This seasonal ebb and flow of sunshine not only influences the climate and biodiversity of Brittany but also shapes local activities and cultural events centered around the sunniest periods of the year.
In Brittany, France, the UV Index exhibits significant seasonal variability, reflecting changes in solar exposure throughout the year. During the winter months, particularly January and February, the UV Index remains low to moderate, with values of 2 and 3, respectively. This translates to safe exposure levels, allowing individuals to spend time outdoors with minimal risk of skin damage, as the burn time stretches to 45 minutes in winter and 30 minutes in February. As spring transitions into summer, however, the UV Index escalates sharply, peaking in April at 7 and reaching very high levels of 8 and 9 in May, June, and July. In these months, the recommended burn time decreases significantly to just 15 minutes, highlighting the need for increased sun protection.
The trend continues into August with a slight decrease to 8, before the UV Index starts to taper off with the arrival of autumn. September sees the Index drop to 6, marking still relatively high exposure levels, while October and November revert to moderate and low categories, with indices of 5 and 2, respectively. The return to lower UV levels in late fall and winter suggests a reprieve from the sun's intensity, allowing for safer outdoor activities without excessive sun protection. Overall, understanding the UV Index in Brittany is crucial for enabling residents and visitors to enjoy the outdoors responsibly throughout the changing seasons.
UV Risk Categories
Daylight duration in Brittany, France, varies significantly throughout the year, reflecting the region's temperate climate and seasonal changes. In the depths of winter, January and December offer only 8 hours of daylight, while February sees a slight increase to 10 hours as the days gradually lengthen. March brings about an encouraging 11 hours, marking the transition into spring. As the season progresses, daylight continues to increase, with April receiving 13 hours, and May basking in 15 hours, providing ample time for outdoor activities as nature begins to bloom once again.
The peak daylight hours occur in the summer months, with June, July, and August maintaining a consistent 15 hours of daylight, inviting both locals and tourists to enjoy the warm evenings. As autumn approaches, daylight begins to wane, with the hours decreasing progressively to 12 hours in September and then to 10 hours in October. The trend culminates in November at 9 hours, a precursor to the shorter days of winter. This dynamic pattern of daylight duration significantly influences lifestyle, outdoor activities, and overall mood in Brittany, highlighting the importance of seasonal awareness in this picturesque region.
The climate in Arzon, France, features mild winters and warm summers, with average temperatures ranging from -4°C (25°F) in March to 28°C (82°F) in July and August. Rainfall is relatively moderate, peaking in December with 121 mm (4.8 in) and showing a noticeable decline during the summer months. Sunshine duration is abundant, particularly in June and July, with over 400 hours of sunshine each month. For more detailed climate information, visit Arzon climate.
Benodet, France experiences a temperate maritime climate characterized by mild temperatures and significant seasonal variation. Winter months can dip as low as -5°C (23°F), while summer highs reach up to 29°C (84°F). Rainfall is prevalent, particularly in October and December, with annual precipitation totaling over 900 mm (35 in). The region enjoys ample sunshine from March through August, peaking in July with 433 hours. For more detailed climate information, visit Benodet climate.
Bono, France experiences a temperate climate characterized by mild winters and warm summers. Average temperatures range from a January minimum of -5°C (23°F) to a maximum of 33°C (91°F) in August, with a general increase in warmth from spring through summer. Precipitation is heaviest in winter and autumn, peaking at 113 mm (4.4 in) in December, while sunlight hours reach their highest in summer, particularly in July with 429 hours. For more detailed information, visit Bono climate.
The climate in Brie, France, features significant seasonal variation, with January temperatures ranging from -7°C to 15°C, gradually warming to highs of 37°C in July. Average precipitation peaks in June at 102 mm, while December also sees high rainfall with 103 mm, making these some of the wettest months. Sunshine hours are plentiful from March to August, peaking at 414 hours in July, which contributes to the region's lively summer atmosphere. For more detailed information about the local climate, visit Brie climate.
Cancale, France experiences a temperate maritime climate characterized by mild winters and warm summers. January temperatures range from 1°C to 14°C, while July sees highs of 29°C. Precipitation is prevalent throughout the year, peaking in October at 157 mm, with relatively dry conditions in April. The region enjoys significant sunshine, particularly in summer, with July receiving around 416 hours. For more details, visit Cancale climate.
The climate in Carnac, France, features mild winters and warm summers. Average temperatures range from a cold 8°C (47°F) in January to a peak of 19°C (66°F) in July. Precipitation varies throughout the year, with December being the wettest month at 121 mm (4.8 in) and a notable dip in rainfall during April (42 mm / 1.6 in). The region enjoys ample sunshine, particularly from May to July, where it nearly reaches 413-429 hours. For detailed weather insights, visit Carnac climate.
Concarneau, France experiences a temperate maritime climate characterized by mild winters and warm summers. January temperatures range from a low of -4°C to a high of 14°C, while July sees a range of 10°C to 29°C. Precipitation is highest in December at 129 mm, with moderate rainfall throughout the year, especially in October (100 mm). Sunshine is abundant from May to August, with peak hours reaching 433 in July. For more details, visit Concarneau climate.
The climate in Crozon, France, features mild temperatures and varying precipitation throughout the year. Winters are cool with January averaging around 9°C (48°F) and receiving significant rainfall, peaking in December with 198 mm (7.8 in). Summers are pleasant, particularly in July when temperatures can reach up to 24°C (76°F), accompanied by more sunshine hours, maximally hitting 429 hours in July. The transition months of spring and autumn experience moderate weather and rainfall, contributing to a well-rounded seasonal experience. For more details, visit Crozon climate.
Dinan, France experiences a temperate climate with distinct seasonal variations. Winter temperatures can drop as low as -7°C (20°F) in January, while summers reach highs of 36°C (97°F) in July. Precipitation is fairly consistent throughout the year, peaking in December with 107 mm (4.2 in) of rainfall. Sunshine hours are abundant in the summer months, averaging 423 hours in July, while winter sees significantly less, such as 141 hours in January. For more detailed climate information, visit Dinan climate.
Dinard, France, experiences a temperate maritime climate characterized by mild winters and warm summers. January temperatures range from 1°C to 14°C, while July sees highs of up to 28°C. Precipitation is highest in December (164 mm), contributing to a total annual average of about 950 mm. The sunniest months are May through July, with July enjoying around 424 hours of sunshine. For detailed insights about the climate, visit Dinard climate.
Erquy, France experiences a temperate maritime climate characterized by mild winters and warm summers. January temperatures range from a chilly 1°C to a maximum of 15°C, while July sees highs of up to 24°C. Precipitation is relatively high in the winter months, peaking in October with 140 mm, while sunshine hours are most abundant in July, at 427 hours. The transition from spring to summer is marked by increasing temperatures and moderate rainfall. For more details, visit Erquy climate.
Fouesnant, France experiences a mild maritime climate with temperature variations throughout the year. January sees minimum temperatures around -4°C (25°F), rising to an average of 7°C (46°F) and reaching up to 14°C (57°F). Summers are warmer, peaking in July and August with average highs of 18°C (65°F) to 17°C (64°F) and maximums around 29°C (84°F). Precipitation is generally higher in the autumn and winter months, with October being the wettest month at 100 mm (4.0 in), while sunshine hours peak in May and July, providing ample daylight. For more detailed information, visit Fouesnant climate.
Fougeres, France, experiences a varied climate throughout the year, marked by warm summers and cold winters. January temperatures can dip as low as -7°C (19°F), while July sees highs reaching 37°C (99°F). Precipitation is relatively high, with June recording the most at 109 mm (4.3 in). Sunshine is at its peak in July with 414 hours, providing plenty of bright days for outdoor activities. For more detailed climate information, visit Fougeres climate.
Ile-de-Batz, France, experiences a temperate maritime climate with mild temperatures year-round. January and February are the coldest months, with averages around 9°C (49°F) and maximums peaking at 14°C (58°F). Summers are pleasant, exhibiting maximum temperatures that can reach up to 25°C (78°F) in August, while precipitation varies, with October being the wettest month at 133 mm (5.2 in). The island enjoys significant sunshine, particularly from May to July, when daylight reaches over 400 hours per month. For more detailed information, visit Ile-de-Batz climate.
Josselin, France, experiences a temperate climate with distinct seasons. Winter months see temperatures ranging from -8°C (19°F) in January to slightly milder conditions in December, while summer peaks at 35°C (95°F) in July. Precipitation varies throughout the year, with June being the rainiest month at 101 mm (4.0 in), while May typically receives the most sunshine, averaging 408 hours. The annual climate provides a diverse range of weather patterns, making Josselin a unique destination. For more details, visit Josselin climate.
Le Saint, France experiences a temperate climate with distinct seasonal changes. Winters can be quite cold, with January temperatures ranging from -6°C to 14°C and average precipitation peaking at 115 mm in December. Summers are warmer, especially in July and August, with maximum temperatures reaching 33°C, while rainfall is relatively moderate. The region enjoys ample sunshine in spring and summer, with over 400 hours in June and July. For more detailed information, visit Le Saint climate.
Locronan, France, experiences a temperate oceanic climate characterized by mild winters and warm summers. Average temperatures range from a minimum of -3°C (27°F) in March to a maximum of 26°C (78°F) in July, with notable rainfall peaking in December at 165 mm (6.5 in). The region enjoys a significant amount of sunshine, particularly in May with 415 hours and July with 429 hours. Precipitation is highest in the winter months, contributing to the lush landscapes that define this charming locale. For more detailed information, visit Locronan climate.
Ouessant, France experiences a temperate maritime climate characterized by mild winters and cool summers. Average temperatures range from a minimum of 1°C (34°F) in February to a maximum of 23°C (74°F) in July, with moderate precipitation peaking in December at 155 mm (6.1 in) and lowest in April at 41 mm (1.6 in). The island enjoys significant sunshine, with July boasting the highest at 425 hours, while January sees the least with 135 hours. This climate supports a diverse ecosystem, making it a fascinating destination for visitors. For more details, check the Ouessant climate.
Paimpol, France, experiences a temperate maritime climate with mild winters and warm summers. Average temperatures range from a low of -1°C (30°F) in January to a high of 27°C (81°F) in August. Precipitation is notable, particularly in October and December, with averages reaching 124 mm (4.9 in) and 126 mm (5.0 in), respectively. The region enjoys significant sunshine hours, peaking at 428 hours in July. For more detailed information, visit Paimpol climate.
Perros-Guirec, France experiences a temperate maritime climate characterized by mild winters and warm summers. Winter temperatures range from a minimum of -2°C in March to a maximum of 15°C in February, with notable rainfall peaking in December at 167 mm. Summers are pleasantly warm, with average temperatures around 17°C in July and August, and precipitation is generally lower, especially in July (44 mm). The region enjoys significant sunshine, particularly in May (414 hours) and July (431 hours), making it a delightful spot for outdoor activities. For more details, visit Perros-Guirec climate.
The climate in Pont-Aven, France, features mild winters and warm summers, with average temperatures ranging from 8°C (47°F) in January to 18°C (65°F) in July. Precipitation is highest in winter and autumn, peaking at 135 mm (5.3 in) in December, while the driest month is April with 41 mm (1.6 in). Sunshine hours are abundant, reaching up to 432 hours in July, creating ideal conditions for outdoor activities. The region experiences a gradual warming trend leading into summer, making it an attractive destination year-round. For more details, visit Pont-Aven climate.
The climate in Quiberon, France, features mild winters and warm summers, with average monthly temperatures ranging from 8°C (47°F) in January to 19°C (66°F) in July. Precipitation varies throughout the year, peaking at 121 mm (4.8 in) in December, while sunshine hours increase from 144 in January to a high of 429 in July. The region experiences a moderate maritime influence, contributing to its distinct seasonal changes. For more detailed information, visit Quiberon climate.
Rennes, France, experiences a temperate climate characterized by mild winters and warm summers. January temperatures range from a minimum of -7°C (19°F) to a maximum of 16°C (60°F), while July sees highs around 37°C (99°F). The city receives significant rainfall, particularly in June with 100 mm (3.9 in) and October with 88 mm (3.5 in), but enjoys abundant sunshine in summer, reaching up to 414 hours in July. Overall, Rennes is a city with diverse weather patterns throughout the year, making it an interesting destination. For more details, visit Rennes climate.
Rochefort-en-Terre, France experiences a temperate climate with distinct seasonal variations. Winter months, from January to March, see low temperatures, ranging from -7°C to 6°C, while summer peaks in July and August can reach as high as 36°C. Precipitation is notable throughout the year, with June and December being the wettest months, recording up to 93 mm and 95 mm respectively. The region enjoys ample sunshine, particularly in the summer, with July averaging 425 hours of sunlight. For more detailed information, visit Rochefort-en-Terre climate.
Roscoff, France, experiences a maritime climate characterized by mild winters and cool summers. January temperatures range from a minimum of 2°C (36°F) to a maximum of 14°C (58°F) with significant precipitation, totaling 102 mm (4.0 in). Summer months, particularly July and August, see warmer averages around 16°C (61°F) and 25°C (78°F) respectively, alongside reduced rainfall. The area enjoys ample sunshine, peaking at 430 hours in July. For more details on the weather patterns, visit Roscoff climate.
The climate in Saint-Lunaire, France, features mild winters and warm summers. January temperatures range from 1°C to 14°C, while July sees highs up to 28°C. Precipitation is highest in December with 164 mm, and the summer months generally experience less rain. Sunshine hours peak in July at 424 hours, contributing to pleasant summer days. For more detailed information, visit Saint-Lunaire climate.
Saint-Malo, France, experiences a temperate maritime climate with mild winters and warm summers. January temperatures range from a chilly 1°C to a moderate 14°C, while July can reach highs of 28°C. Rainfall varies throughout the year, peaking in December at 164 mm, while sunshine hours are most abundant in July with 424 hours. Overall, the region enjoys a balance of sunshine and precipitation, making it an appealing destination year-round. For more details, visit the Saint-Malo climate.
The climate in Sainte-Anne-d'Auray, France, features a wide range of temperatures throughout the year, with winter lows reaching -6°C and summer highs reaching up to 33°C. The city experiences moderate precipitation, with December being the wettest month at 113 mm, while April enjoys the least rainfall at 44 mm. Sunshine is abundant, especially during the summer months, with July receiving around 429 hours of sunlight. Overall, this coastal region offers a temperate climate, making it favorable for various outdoor activities. For more detailed climate information, visit Sainte-Anne-d'Auray climate.
Sauzon, France experiences a temperate maritime climate characterized by mild winters and warm summers. January sees average temperatures around 9°C (49°F) with increased precipitation peaking in December at 130 mm (5.1 in), while July enjoys an average of 19°C (66°F) and 430 hours of sunshine. The transition from cooler to warmer months is gradual, with noticeable increases in temperature and sunshine from March to August. Rainfall is relatively higher in fall and winter, particularly in October and November. For more detailed information, visit Sauzon climate.
Tregastel, France experiences a mild climate with warm summers and cool winters. Average temperatures range from a low of -2°C (29°F) in March to a high of 29°C (84°F) in August, making it an attractive destination for outdoor activities. Rainfall is significant, particularly in the winter months, with December receiving up to 167 mm (6.6 in) of precipitation. Sunshine varies throughout the year, peaking in July at 431 hours, ideal for enjoying the beautiful coastal scenery. For more detailed information, visit Tregastel climate.
Vannes, France experiences a temperate climate characterized by mild temperatures and variable precipitation throughout the year. Winter months may see minimal temperatures dropping to -7°C (20°F), while summer peaks can reach up to 34°C (94°F). Rainfall is most abundant in December with 104 mm (4.1 in), but June also experiences significant precipitation at 84 mm (3.3 in). The city enjoys the most sunshine in July, totaling 427 hours and gradually decreasing towards the winter months. For more detailed information, visit Vannes climate.
In conclusion, Brittany, France, presents a fascinating interplay of climate, precipitation, sunshine duration, UV Index, and daylight variation throughout the year. The region's temperate maritime climate fosters distinct seasonal patterns characterized by mild winters and warm summers, accompanied by varying rainfall that nourishes its lush landscapes. Analyzing the sunshine hours reveals long, bright summer days that promote outdoor activities, while the UV Index highlights the importance of sun safety during the peak summer months. Additionally, the gradual changes in daylight duration—ranging from the low hours of winter to the ample daylight of summer—underscore the region’s vibrant seasonal cycle. Collectively, these climatic factors shape the cultural and environmental fabric of Brittany, making it a unique destination that captures the essence of changing seasons.