Last updated: February 26, 2025
Experience the enchanting September weather in Cassis, France, where the temperatures delightfully range from a pleasant 11°C (53°F) at night to a warm 28°C (83°F) during the day, averaging around 21°C (70°F). While enjoying the beautiful coastal scenery, expect a light touch of rain, as the month brings about 39 mm (1.5 in) of precipitation over five days, contributing to the lush landscape. The humidity level hovers around 71%, enhancing the Mediterranean charm of this picturesque village. Whether you're exploring the stunning cliffs or relaxing by the harbor, September offers the ideal ambiance for your visit.
In September, Cassis, France, elegantly transitions from the sultry heights of summer to the gentle warmth of early autumn. With temperatures ranging from a minimum of 11°C (53°F) to a maximum of 28°C (83°F), the month offers a delightful average of 21°C (70°F), perfect for leisurely strolls along the picturesque coastline. This mild weather fosters a vibrant atmosphere, ideal for exploring the town's charming streets or savoring local cuisine in al fresco dining spots. As summer crowds begin to wane, visitors can enjoy a more tranquil experience while basking in the delightful Mediterranean sun, making September a hidden gem for those seeking a warm yet serene getaway.
As summer transitions into autumn, September in Cassis, France experiences a notable increase in precipitation, with an average of 39 mm (1.5 in) falling over approximately 5 days. This marks a shift from the significantly drier months of July and August, which see minimal rainfall. While the rainfall amounts in September are modest compared to the following months, like October's 88 mm (3.5 in) and November's 127 mm (5.0 in), they signal the onset of a wetter season. This gradual uptick prepares the region for the lush landscapes that follow, as the days become cooler and the greenery starts to flourish again. The overall trend shows a consistent rise in precipitation as the year progresses, emphasizing the contrast between Cassis's sun-soaked summers and its wetter autumn months.
In Cassis, France, the humidity levels fluctuate throughout the year, revealing interesting seasonal trends. Starting with January's peak at 80%, the humidity gradually declines, reaching its lowest in August at 66%. September sees a slight uptick, with humidity returning to 71%, hinting at the transition into the wetter months ahead. This gradual increase continues into the fall, as October and November hover around 78% and 82%, respectively. Overall, the trend illustrates a notable decrease in humidity during the summer, followed by a resurgence as autumn sets in, painting a vivid picture of Cassis’ Mediterranean climate.
In September, Cassis experiences a UV Index of 7, categorizing it within the high exposure range, which indicates a strong potential for skin damage without protection. This month marks a slight decrease from the peak summer months, yet the burn time remains relatively quick at 25 minutes. As autumn approaches, sun exposure becomes more manageable compared to the intense UV levels seen in May and June, when the index hit an impressive 9 and 10 respectively. This trend reflects the region’s gradual transition from the scorching summer sun to a milder autumn, while still maintaining a considerable risk for sunburn. For more detailed information, visit Cassis UV Index.
UV Risk Categories
As summer gracefully wanes, September in Cassis, France still basks in the warm embrace of sunlight, boasting an impressive 345 hours of radiant sunshine. While this marks a gentle decline from the sun-soaked heights of July at 436 hours and August at 404 hours, September offers a perfect blend of lingering warmth and softer autumn light, inviting visitors to savor the stunning coastal views without the sweltering summer crowds. This subtle transition showcases the region's charm, as the days grow shorter yet remain beautifully bright, bridging the vibrant energy of summer with the serene onset of fall. The overall trend highlights a gradual decrease in sunlight as the year progresses, but September stands out as a delightful destination for those seeking both sunshine and tranquility.
As September rolls into Cassis, France, the likelihood of sunny weather remains a delightful feature of the month, with a 52% chance of sunshine. While this is a dip from the sun-drenched heights of August, which boasts a 73% chance, it's still an improvement over earlier months like April and May. This trend highlights the gradual transition from summer to autumn, where September still retains a notable warmth and brightness, inviting visitors and locals alike to enjoy the picturesque coastal views. The weather pattern in Cassis suggests that while the arrival of fall is imminent, sunshine continues to grace the region, making it a charming time to explore the beauty of this Mediterranean gem.
As summer fades into autumn, September in Cassis, France offers a gentle decline in daylight duration, providing 12 hours of daylight for residents and visitors alike. This slight decrease follows the high point of June, which boasts 15 hours of sun, and reflects a gradual transition from the sun-drenched days of summer. By the end of September, the light retreats gently, preparing for the cooler months ahead. This rhythm of daylight is a lovely reminder of nature’s cycles, as Cassis shifts from the vibrant, sun-filled days of summer to the softer hues of fall. Enjoying the lingering warmth of early autumn under the Mediterranean sun becomes a cherished experience in this charming coastal town.
As summer transitions into autumn, September in Cassis, France, offers a gentle breeze with an average wind speed of 4.3 m/s (10 mph). This slight decline from the summer months reflects a broader trend where wind speeds begin to ease, culminating in a notable shift from the blustery tailwinds of early summer. Throughout the year, January kicks off with the highest gusts at 6.4 m/s (14 mph), gradually tapering off until the early fall. However, like a refreshing reminder of summer's vitality, September's winds maintain a steady pace, inviting locals and visitors alike to enjoy the serene coastal beauty. As the month progresses, the whisper of the wind hints at the seasonal change ahead, while promising a tranquil outdoor experience for all.
The weather in Cassis changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of September's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Cassis and find detailed weather information for every month.
In September, the weather is generally mild and pleasant, with average temperatures around 21°C (70°F) and maximum highs reaching up to 28°C (83°F). This month experiences relatively low precipitation, averaging 39 mm (1.5 in) over about 5 days, along with a humidity level of 71%. In contrast, January brings colder temperatures, with an average of just 9°C (48°F) and maximums peaking at 16°C (62°F). The month is wetter, receiving 55 mm (2.2 in) of rain over approximately 7 days, while humidity rises slightly to 80%. For more details on the January climate specifics, you can visit Cassis weather in January.
September and February present contrasting weather experiences. In September, temperatures range from a mild 11°C (53°F) at night to a warm 28°C (83°F) during the day, with an average of 21°C (70°F). The month typically sees 39 mm (1.5 in) of precipitation over about five days, accompanied by a moderate humidity level of 71%. In contrast, February offers cooler conditions, with temperatures dipping as low as -1°C (31°F) and peaking at 18°C (65°F), leading to an average of 10°C (50°F). Precipitation is slightly higher at 40 mm (1.6 in) over seven days, and humidity rises to 73%. For those interested in the specifics of February weather in Cassis, more details can be found here: Cassis weather in February.
September and March show distinct differences in weather patterns. In September, temperatures range from a mild 11°C (53°F) to a warm 28°C (83°F), with an average of 21°C (70°F), creating an inviting atmosphere. The month experiences relatively low precipitation at 39 mm (1.5 in) over about 5 days, complemented by a consistent humidity level of 71%. In contrast, March presents a cooler environment, with temperatures ranging from 1°C (34°F) to a maximum of 20°C (68°F) and an average of just 11°C (53°F). March is slightly wetter, receiving 49 mm (1.9 in) of precipitation over 6 days, while the humidity remains constant at 71%. For more details on March weather, check this link: Cassis weather in March.
When comparing the weather in September and April, we see notable differences in temperature and precipitation. September boasts a milder range with minimum temperatures around 11°C (53°F) and maximums reaching 28°C (83°F), offering an average of 21°C (70°F). In contrast, April is cooler, with temperatures starting at a minimum of 4°C (39°F) and peaking at 21°C (70°F), averaging only 14°C (57°F). Precipitation is also higher in April, totaling 70 mm (2.7 in) over 8 days, compared to September’s 39 mm (1.5 in) spread across 5 days. The humidity levels remain relatively consistent, with September at 71% and April slightly higher at 75%. For more detailed information on weather patterns, visit Cassis weather in April.
When comparing the weather in September and May, we find notable differences in temperature and precipitation. September enjoys warmer temperatures with a minimum of 11°C (53°F) and an average of 21°C (70°F), peaking at 28°C (83°F). In contrast, May is cooler, starting at a minimum of 8°C (46°F) and averaging 17°C (63°F), with a maximum of 27°C (82°F). Additionally, September experiences less rainfall at 39 mm (1.5 in) over 5 days, while May sees more precipitation at 63 mm (2.5 in) spread over 8 days. Both months are relatively humid, with September at 71% and May slightly higher at 74%. For more detailed insights, check Cassis weather in May.
When comparing the weather in September to that in June, both months exhibit mild average temperatures, with September having a minimum of 11°C (53°F) and a maximum of 28°C (83°F), while June ranges from a minimum of 14°C (57°F) to a maximum of 31°C (88°F). June tends to be slightly warmer, particularly at its peak, though both months share a similar average temperature of around 21°C (70°F). Precipitation is more pronounced in September, with 39 mm (1.5 in) over five days compared to June's 24 mm (0.9 in) across four days. Humidity levels remain comparable, with September at 71% and June slightly higher at 72%. For more detailed insights, check out Cassis weather in June.
In comparing the weather between September and July, we see noteworthy differences. September has a cooler minimum temperature of 11°C (53°F) and an average temperature of 21°C (70°F), with maximums reaching 28°C (83°F). It also experiences more precipitation, totaling 39 mm (1.5 in) over about five days, and a slightly higher humidity level of 71%. In contrast, July is warmer, with minimums of 17°C (62°F) and an average of 24°C (75°F), peaking at 30°C (86°F). This month is considerably drier, featuring only 9 mm (0.4 in) of rain over just one day and holding a humidity level of 69%. For more specific details, you can check out Cassis weather in July.
In comparing the weather of September and August, September experiences milder temperatures, with a minimum of 11°C (53°F) and an average of 21°C (70°F), as opposed to August's warmer minimum of 17°C (63°F) and average of 24°C (76°F). August peaks with maximum temperatures reaching up to 32°C (90°F), whereas September's maximum is a more moderate 28°C (83°F). Additionally, September sees an increase in precipitation, totaling 39 mm (1.5 in) over 5 days, compared to August's much drier conditions with only 16 mm (0.6 in) occurring over just 1 day, and slightly higher humidity levels of 71% compared to 66% in August. This marked difference highlights the transition into autumn as the year progresses. For more detailed information, check out Cassis weather in August.
September typically offers milder weather with average temperatures peaking at 21°C (70°F) and a maximum of 28°C (83°F). However, by October, the temperatures drop slightly; the average is around 17°C (63°F), with a maximum of 25°C (77°F). Precipitation increases from 39 mm (1.5 in) over 5 days in September to 88 mm (3.5 in) over 7 days in October, indicating a wetter month ahead. Additionally, humidity rises from 71% in September to 78% in October, contributing to a cooler and more damp atmosphere. For a detailed look at the weather in October, you can visit Cassis weather in October.
In September, the weather features warmer temperatures with a minimum of 11°C (53°F), an average of 21°C (70°F), and a maximum of 28°C (83°F), making it a pleasant month to enjoy outdoor activities. However, with a precipitation total of 39 mm (1.5 in) over about 5 days, the month is still relatively dry, complemented by a humidity level of 71%.
In contrast, November brings cooler temperatures, where the minimum drops to 5°C (42°F), the average reaches only 13°C (56°F), and the maximum peaks at 19°C (67°F). This month is much wetter, with 127 mm (5.0 in) of rainfall spread across 12 days, resulting in increased humidity at 82%. For those looking to plan their visit, more detailed information can be found at Cassis weather in November.
In September, the weather is generally warm, with temperatures ranging from a mild 11°C (53°F) at night to a pleasant 28°C (83°F) during the day. The humidity sits at 71%, and there's relatively low rainfall, totaling 39 mm (1.5 in) over about 5 days. In contrast, December brings a significant drop in temperatures, with daily averages around 10°C (50°F) and maximums reaching 18°C (64°F). The month experiences more precipitation, totaling 76 mm (3.0 in) across 9 days, and humidity levels increase slightly to 79%. For more details, you can check Cassis weather in December.
As the summer draws to a close, September in Cassis offers a unique shift in weather, blending the warmth of summer with the crispness of autumn. While the temperatures remain pleasantly mild, reaching averages of around 21°C (70°F), you may notice a drop from the peak heat of July and August. Precipitation increases slightly, with an average of 39 mm over a handful of rainy days, contributing to a refreshing atmosphere. With humidity hovering at 71%, the air feels a bit more invigorating, making it an ideal month for exploring this picturesque coastal town. For those keen to know more about the varying weather patterns throughout the year, check out the detailed insights on Cassis Climate.