Last updated: February 26, 2025
In August, Saint-Malo experiences a delightful maritime climate characterized by a maximum temperature of 25°C (77°F), providing warm days that invite exploration of its stunning coastline. The average temperature hovers around 18°C (65°F), while cool evenings settle in with a minimum of 14°C (57°F). Visitors should prepare for occasional rain, with 63 mm (2.5 in) of precipitation spread over 11 days, contributing to a humidity level of 73%. This blend of warmth and moisture creates an enchanting atmosphere, perfect for enjoying the scenic beauty and rich history of this captivating coastal city.
In August, Saint-Malo basks in a delightful summer warmth, with temperatures hovering between a comfortable 14°C (57°F) and a max of 25°C (77°F). This month marks a notable rise from the cooler early months, showcasing an average temperature of 18°C (65°F) that invites both locals and tourists to enjoy the sun-soaked beaches and charming seaside cafes. The trend towards warmer weather is evident as August stands as one of the warmest months of the year, providing a perfect backdrop for leisurely strolls along the historic ramparts or exploring the vibrant coastal scenery. As summer begins to segue into fall, visitors can relish in the lingering warmth before the temperatures gradually begin to dip in September.
In Saint-Malo, France, August brings a moderate precipitation total of 63 mm (2.5 in), falling on approximately 11 days. This amount reflects a slight increase from July's drier spell, which recorded only 46 mm over 9 days. The summer months showcase a visible shift, with rainfall beginning to pick up after the typically drier, sunnier days of July. However, August's showers are still comparatively light when stacked against the upcoming autumn months, which usher in much heavier moisture, particularly with October's average soaring to 140 mm (5.5 in) over 17 days. This trend highlights a gradual transition from the more pleasant summer climate to the wetter, cooler conditions of fall, making August a pivotal month in the region's weather pattern.
In August, Saint-Malo experiences a notable shift in humidity as it drops to 73%, creating a brief respite from the summer warmth. This decline follows a gradual decrease from the high humidity levels of the early summer months, where July saw a more pronounced drop to 69%. Compared to the winter months, when humidity consistently exceeds 90%, August's levels feel relatively moderate but still exhibit the typical coastal dampness that characterizes the area. As the seasons transition, humidity starts to rise again in September, climbing back to 79%, indicating the lingering influence of the Atlantic climate. This pattern highlights the seasonal fluctuations that define Saint-Malo’s maritime weather, making each month a unique experience for residents and visitors alike.
In August, Saint-Malo experiences a UV Index of 8, categorized as very high, meaning sun protection is essential for outdoor activities. This trend reflects a pattern seen throughout the summer months, where both June and July also boast a peak index of 9, highlighting the intense solar exposure typical of the region. As the summer draws to a close, the burn time in August remains a brisk 15 minutes, similar to the prior months, underscoring the importance of being vigilant against UV radiation. As autumn approaches in September, the UV Index decreases to 6, transitioning into a more moderate level. To stay informed and plan your sun exposure effectively, be sure to check the Saint-Malo UV Index.
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In August, Saint-Malo basks in the warmth of summer, enjoying 386 hours of sunshine that complements its stunning coastal views. This month continues the trend of bright days established in July, which boasts the highest sunshine hours at 424. Although sunlight is slightly reduced in August, it remains significantly more vibrant than the earlier months of the year, with January receiving only 141 hours. The gradual increase in sunshine, peaking during the summer months, followed by a gentle decline in September, highlights the seasonal rhythm of this charming French town. As the sun sets on summer, visitors can relish the lingering warmth and beauty of Saint-Malo, making it a perfect time to explore its captivating history and coastal allure.
In Saint-Malo, France, the likelihood of sunny weather in August stands at a commendable 41%. This positions August as a month of moderate sun, which is a slight dip from the 47% chance observed in July, yet still promising compared to the spring months. The trend indicates a gradual increase in sunshine from the winter months onward, reflecting the region's transition into summer. After reaching a peak in April at 62%, the percentage takes a natural course downward into August, hovering consistently above 40%. This makes August a delightful time for visitors seeking the warmth and brightness of the sun, despite the alternating grey skies typical of the coastal climate.
In Saint-Malo, France, August brings a delightful balance of daylight, with approximately 14 hours of sunshine illuminating the sky. This month stands out as a slight decrease from the sun-drenched 16 hours of June and 15 hours in July, yet it remains a vibrant summer month welcoming visitors. As we transition into autumn, the daylight begins its gradual retreat into September's 12 hours, signaling a shift in the seasons. The overall trend reveals a dynamic progression from the dark days of winter, where daylight barely reaches 8 hours in January and December, to the lush, sun-filled months of spring and summer, making August a sweet spot for enjoying the lingering warmth before fall arrives.
In August, the coastal city of Saint-Malo experiences a gentle breeze with an average wind speed of 5.9 m/s (13 mph), marking a shift to slightly calmer conditions as summer draws to a close. This trend of milder winds is characteristic of the month, following a gradual decrease from the more vigorous gusts of spring and early summer. Notably, the winds in August are less forceful compared to the winter months, such as December with its average of 7.8 m/s (17 mph), highlighting the seasonal ebb and flow of maritime breezes. As the warm summer air lingers, the refreshing winds provide a pleasant backdrop for visitors to enjoy the historic charm of Saint-Malo, a perfect setting for leisurely seaside strolls.
The weather in Saint-Malo changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of August's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Saint-Malo and find detailed weather information for every month.
In August, the weather in Saint-Malo is generally mild, with temperatures ranging from a minimum of 14°C (57°F) to a maximum of 25°C (77°F) and an average of 18°C (65°F). The month sees around 63 mm (2.5 in) of precipitation over approximately 11 days, with an average humidity of 73%. In contrast, January experiences much cooler temperatures, with a minimum of 1°C (34°F), an average of 8°C (47°F), and a maximum of 14°C (58°F). This winter month receives more precipitation, totaling 88 mm (3.5 in) over about 14 days, and features higher humidity at 90%. For a detailed look at the January climate in Saint-Malo, visit Saint-Malo weather in January.
When comparing the weather in August and February, there is a stark contrast in temperatures and conditions. August enjoys milder temperatures, ranging from a minimum of 14°C (57°F) to a maximum of 25°C (77°F), with an average of 18°C (65°F). It experiences relatively lower precipitation of about 63 mm (2.5 in) spread over 11 days, alongside a humidity level of 73%. In contrast, February presents a much chillier climate, with temperatures dipping to a minimum of -1°C (30°F) and peaking at 14°C (57°F), resulting in an average of only 8°C (47°F). The month is characterized by higher precipitation at 90 mm (3.5 in) over 15 days and a humidity level of 89%. For more details on February weather in the region, check out Saint-Malo weather in February.
When comparing the weather in August and March, notable differences in temperature and humidity become apparent. August offers milder conditions with an average temperature of 18°C (65°F), peaking at a comfortable 25°C (77°F), while March is significantly cooler, with an average of just 9°C (48°F) and highs reaching only 16°C (60°F). Precipitation levels are relatively similar; however, March sees slightly more rain with 70 mm (2.8 in) over 15 days, compared to August's 63 mm (2.5 in) over 11 days. Additionally, March experiences higher humidity at 86%, compared to August's 73%. For more detailed insights about March weather in Saint-Malo, check out Saint-Malo weather in March.
In comparing the weather of August and April, August presents a warmer climate with temperatures ranging from a minimum of 14°C (57°F) to a maximum of 25°C (77°F), averaging around 18°C (65°F). In contrast, April experiences cooler temperatures, with a minimum of 5°C (42°F) and a maximum of 18°C (64°F), averaging only 11°C (51°F). Precipitation is also higher in August at 63 mm (2.5 in) over 11 days, while April sees less rain with 40 mm (1.6 in) over 8 days, despite having a higher relative humidity of 84% compared to August's 73%. For more detailed information on April weather, visit Saint-Malo weather in April.
August generally offers warmer temperatures compared to May, with average highs reaching 25°C (77°F) versus May's peak of 21°C (71°F). While both months see similar precipitation levels—63 mm (2.5 in) for August and 67 mm (2.6 in) for May—they differ slightly in terms of humidity, with May hovering at 80% and August at 73%. This makes August feel more comfortable despite its higher temperatures. For more detailed information, you can visit Saint-Malo weather in May.
When comparing the weather in August and June, several notable differences emerge. In June, temperatures range from a minimum of 12°C (53°F) to a maximum of 27°C (80°F), with an average of 16°C (61°F). By contrast, August has slightly warmer temperatures, with a minimum of 14°C (57°F) and a maximum of 25°C (77°F), resulting in an average of 18°C (65°F). Precipitation is similar in both months, with June receiving 74 mm (2.9 in) of rain compared to August's 63 mm (2.5 in); however, both months see rainfall over 11 days. Humidity levels are also higher in June at 80%, compared to 73% in August, indicating a somewhat more comfortable atmosphere in late summer. For more details on June weather, visit Saint-Malo weather in June.
In comparing the weather of August and July, we observe a slight difference in temperatures and precipitation levels. August features a minimum temperature of 14°C (57°F), an average of 18°C (65°F), and a maximum of 25°C (77°F), while July holds similar minimum and average temperatures, but reaches a higher maximum of 28°C (83°F). Precipitation in August is notably higher at 63 mm (2.5 in) over 11 days, compared to July's 46 mm (1.8 in) over 9 days. Humidity also sees a slight increase in August, averaging 73% compared to July's 69%. For more detailed insights, check out Saint-Malo weather in July.
August generally offers milder weather conditions with a minimum temperature of 14°C (57°F) and an average of 18°C (65°F), while September tends to be slightly cooler, with minimums dipping to 12°C (53°F) and an average of 17°C (63°F). Both months experience a maximum temperature of around 25°C (77°F) to 78°F, showcasing a consistent warm peak. However, September sees a notable increase in precipitation, with 86 mm (3.4 in) compared to August's 63 mm (2.5 in), despite both months having roughly the same number of rainy days at 11. Additionally, humidity rises slightly in September to 79%, up from August's 73%. For more detailed information, check out Saint-Malo weather in September.
August and October present contrasting weather patterns, with August typically featuring milder temperatures averaging around 18°C (65°F) and maximums reaching up to 25°C (77°F). In contrast, October's temperatures dip lower, with averages around 15°C (59°F) and maximums of 21°C (71°F), making it notably cooler. Additionally, October experiences significantly higher precipitation, accumulating 140 mm (5.5 in) over 17 days compared to August's 63 mm (2.5 in) over 11 days. Humidity also rises in October, reaching 89% compared to August's 73%. For more details on October weather, visit Saint-Malo weather in October.
August and November exhibit markedly different weather patterns. In August, temperatures range from a minimum of 14°C (57°F) to a maximum of 25°C (77°F), with an average of 18°C (65°F) and relatively lower humidity at 73%. Precipitation occurs over 11 days, totaling 63 mm (2.5 in). In contrast, November brings a significant drop in temperatures, with a minimum of 5°C (41°F) and a maximum of 17°C (63°F), resulting in an average of 11°C (53°F). The month is also wetter, with precipitation averaging 122 mm (4.8 in) over 16 days, and humidity levels soaring to 92%. For more details, you can check Saint-Malo weather in November.
August and December showcase a stark contrast in weather conditions. In August, temperatures range from a minimum of 14°C (57°F) to a maximum of 25°C (77°F), providing a pleasant average of 18°C (65°F). Precipitation during this month is moderate at 63 mm (2.5 in) over approximately 11 days, with a humidity level of 73%. Conversely, December experiences much cooler temperatures, with a minimum of 3°C (37°F) and a maximum of 14°C (57°F), averaging just 9°C (49°F). The month sees significantly higher precipitation at 164 mm (6.4 in) over 20 days, along with increased humidity at 92%. For more details on December weather, check out Saint-Malo weather in December.
August in Saint-Malo offers a delightful transition into late summer, with warmer temperatures compared to the earlier months, inviting both relaxation and exploration. While the average temperature hovers around a pleasant 18°C (65°F), the maximums can reach up to 25°C (77°F), providing perfect beach weather. Humidity tends to be moderate, and the increased precipitation—with about 11 days of rain—serves to refresh the landscape after warmer days. This balance of warmth and occasional showers sets August apart from the more temperate months that precede it. For a deeper insight into what weather to expect throughout the year, explore the detailed Saint-Malo Climate.