Last updated: February 26, 2025
Experience the charm of Sisteron, France in September, where the weather offers a delightful blend of warmth and crispness. With a maximum temperature reaching 28°C (83°F) and an average of 16°C (61°F), the days invite outdoor exploration. However, as the season transitions, temperatures can dip to a chilly 1°C (34°F) at night. Light rain graces the region with 42 mm (1.6 in) of precipitation spread over 6 days, contributing to the lush landscape and vibrant autumn colors. Relish the mild humidity at 73%, making every moment in this picturesque town an enjoyable experience.
In Sisteron, France, September offers a delightful transition towards the cooler months, featuring a minimum temperature of 1°C (34°F) and an average of 16°C (61°F). This month sees temperatures peak at a comfortable 28°C (83°F), making it an ideal time for outdoor activities amidst the stunning autumnal scenery. Compared to August, which maintains a warmer range, September signals the gradual retreat of summer warmth, yet it remains pleasantly mild as the region prepares for fall. With days still warm and nights turning crisp, September perfectly encapsulates the charm of early autumn in Sisteron.
As September rolls in, Sisteron, France experiences a gentle transition in precipitation patterns, receiving an average of 42 mm (1.6 in) of rainfall over 6 days. This amount is slightly above the drier summer months of July and August, where the region typically sees less than 35 mm of rain combined. Significantly, September’s rainfall begins to hint at the wetter autumn months ahead, setting the stage for more robust precipitation in October and November, which average 98 mm and 102 mm, respectively. This gradual increase not only nourishes the landscape but also marks a shift from the summer heat to the refreshing embrace of fall, showcasing Sisteron's dynamic seasonal climate.
In Sisteron, France, September marks a slight uptick in humidity after the warm summer months, settling at 73%. This increase contrasts sharply with the low of 63% observed in August, highlighting a shift as the region transitions into autumn. Overall, the humidity in Sisteron showcases a noticeable decline during the summer months, reaching its lowest point in July, while autumn brings a return to higher moisture levels, with October and November exhibiting significant humidity at 89% and 90% respectively. This pattern reflects a typical Mediterranean climate, where hot, dry summers give way to a more humid and refreshingly cool fall.
In September, Sisteron, France, experiences a UV Index of 7, categorizing the exposure level as high and suggesting a burn time of 25 minutes for unprotected skin. This marks a noticeable decline from the peak UV levels observed in the summer months of June and July, where the index reached a maximum of 10. As autumn approaches, the UV Index gradually diminishes, yet it's crucial to remain vigilant, particularly during sunny days. The transition in September reflects the changing seasons, making it essential for residents and visitors alike to balance outdoor activities with effective sun protection. To find out more about the UV risks throughout the year in Sisteron, visit Sisteron UV Index.
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As summer transitions into autumn, September in Sisteron, France, showcases a delightful balance of sunshine, offering 340 hours of radiant light. While this marks a gentle decline from the sun-drenched peak of July with its 439 hours, it still outshines the cooler months ahead. Notably, the gradual decrease in sunlight hours from August's 404 indicates a shift toward shorter days, yet September retains a vibrant glow reminiscent of summer's warmth. With each passing month, one can observe a pattern where the burgeoning brightness from January's mere 189 hours builds through the spring and summer, eventually tapering off into the cozy embrace of autumn, making Sisteron an inviting haven for sunshine seekers even as the season subtly changes.
In Sisteron, France, the likelihood of experiencing sunny weather in September stands at 47%, indicating a slight dip from the summer's peak, where August enjoys a promising 71% chance of sunshine. This seasonal transition reflects a broader trend; as summer fades, so does the frequency of clear skies. Interestingly, this percentage is comparable to the sunniest months in winter, such as October and December, which hover around the 50% mark. Despite the decreased chances of sunshine, September maintains a bright disposition, making it an appealing time for outdoor activities amidst the softening summer heat.
As summer transitions into autumn in Sisteron, France, September marks a shift in daylight duration, offering 12 hours of sunlight—a gentle decrease from the sun-drenched 15 hours experienced in July and June. This gradual reduction in daylight reflects the seasonal rhythm that begins in earnest as daylight begins to wane into the cooler months. By following a natural cadence, daylight hours decline steadily from an invigorating 14 hours in May, through 13 hours in August, before reaching the more subdued 10 hours by October. This pattern not only highlights Sisteron’s vibrant summer days but also signals the onset of autumn's charm, inviting both locals and visitors to relish the beauty of early fall while it lasts.
In September, the gentle caress of the wind in Sisteron, France, sees a slight decline, with an average speed of 1.6 m/s (4 mph). This dip marks the transition into the fall months, where breezes become softer, mirroring the gradual cooling of the landscape. Throughout the year, the wind speeds in Sisteron have exhibited a pattern of mild fluctuations, with the warmest months of May and July showcasing the highest gusts at 2.2 m/s and 2.0 m/s, respectively. As summer wanes into autumn, September's calmer winds invite a serene atmosphere, underscoring the region's charm and the subtle changing of the seasons.
The weather in Sisteron 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 Sisteron and find detailed weather information for every month.
September and January present contrasting weather conditions. In September, temperatures range from a mild 1°C (34°F) at night to a warm 28°C (83°F) during the day, with an average of 16°C (61°F). The month experiences around 42 mm (1.6 in) of precipitation over approximately 6 days, accompanied by a humidity level of 73%. In contrast, January brings much colder temperatures, with a minimum of -9°C (16°F) and a maximum of 15°C (60°F), averaging only 2°C (36°F). It also has similar precipitation levels of 41 mm (1.6 in) but over a slightly longer period of 7 days, and humidity rises to 91%. For a more detailed look at January weather, you can visit Sisteron weather in January.
September and February present distinctly different weather patterns. In September, temperatures range from a mild 1°C (34°F) at their lowest to a warm 28°C (83°F) at their highest, averaging around 16°C (61°F). The month experiences an average of 42 mm (1.6 in) of precipitation over about six days, with humidity levels around 73%. In contrast, February is much colder, with minimum temperatures plummeting to -10°C (14°F) and averaging just 5°C (40°F). The maximum temperature reaches only 19°C (66°F). February also sees slightly more precipitation, with 55 mm (2.2 in) over seven days, and a higher humidity level of 87%. For more details on February's weather, visit Sisteron weather in February.
September and March present contrasting weather patterns. In September, the temperatures range from a cool 1°C (34°F) at night to a warm 28°C (83°F) during the day, with an average of 16°C (61°F). The month experiences moderate precipitation of 42 mm (1.6 in) over about 6 days, and humidity sits at 73%. In comparison, March witnesses cooler temperatures, with a minimum of -9°C (16°F) and a maximum of 20°C (68°F), averaging around 7°C (44°F). This month is wetter, accumulating 88 mm (3.5 in) of precipitation across 9 days and slightly higher humidity at 84%. For a detailed look at March weather conditions, visit Sisteron weather in March.
When comparing the weather in September and April, September typically offers a warmer climate, with average temperatures ranging from 1°C (34°F) to a maximum of 28°C (83°F). In contrast, April experiences cooler temperatures, with a minimum of -6°C (22°F) and an average of 10°C (50°F). April also sees more precipitation, averaging 84 mm (3.3 in) over about 10 days, compared to September’s 42 mm (1.6 in) across 6 days. Additionally, April has a slightly higher humidity level of 83%, compared to September's 73%. For a closer look at the weather conditions in April, you can visit Sisteron weather in April.
When comparing the weather between September and May, we see distinct differences in temperature and precipitation patterns. September typically enjoys warmer temperatures, with a minimum of 1°C and an average of 16°C, peaking at a maximum of 28°C. In contrast, May starts off chillier, with temperatures ranging from a minimum of -1°C to an average of 13°C, but can also reach up to 28°C. May is notably wetter, receiving 110 mm of precipitation over about 13 days, compared to September's 42 mm over just 6 days. Additionally, humidity levels are slightly higher in May at 78%, compared to 73% in September. For more insights into May's climate, you can check out Sisteron weather in May.
When comparing the weather in September and June, we observe notable differences in temperature and precipitation patterns. September enjoys a wider temperature range, with minimums dipping to 1°C (34°F) and maximums reaching up to 28°C (83°F), offering a comfortable average of 16°C (61°F). In contrast, June generally stays warmer, with minimum temperatures of 5°C (41°F) and maximums soaring to 35°C (95°F), resulting in an average temperature of 18°C (65°F).
June also sees higher precipitation levels, with 77 mm (3.0 in) of rain over approximately 10 days, compared to September's 42 mm (1.6 in) over 6 days. Humidity levels are fairly similar, hovering around 73% in September and 75% in June. For more detailed insights, check out Sisteron weather in June.
In comparing the weather of September and July, September experiences milder temperatures, with a minimum of 1°C (34°F) and a maximum of 28°C (83°F), leading to an average of 16°C (61°F). In contrast, July is warmer, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 31°C (88°F), resulting in a higher average temperature of 20°C (69°F). While both months receive precipitation on approximately 6 days, September sees a bit more rainfall, totaling 42 mm (1.6 in) compared to July's 32 mm (1.3 in). Humidity is slightly higher in September at 73%, just above July's 72%. For more details, you can visit Sisteron weather in July.
In September, the weather in Sisteron exhibits a noticeable cooling trend compared to August. While August boasts a warmer average temperature of 20°C (69°F) with daytime highs reaching up to 32°C (91°F), September sees a significant drop in both minimum and average temperatures, with lows of 1°C (34°F) and an average of 16°C (61°F). Precipitation occurs slightly more in September, totaling 42 mm (1.6 in) over 6 days, compared to 34 mm (1.3 in) over 5 days in August. Additionally, humidity levels rise in September to 73%, compared to 63% in August, creating a more damp atmosphere as summer transitions into autumn. For further details, visit Sisteron weather in August.
In September, the weather is generally milder, with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 28°C (83°F) and an average of 16°C (61°F). The month experiences about 42 mm (1.6 in) of precipitation over approximately 6 days, with a humidity level of 73%. In contrast, October brings cooler temperatures, with a minimum of -2°C (29°F), an average of 11°C (53°F), and a maximum of 23°C (75°F). This month also sees a significant increase in precipitation, totalling 98 mm (3.9 in) over about 8 days, accompanied by higher humidity at 89%. For a detailed look at the weather conditions in October, check Sisteron weather in October.
In September, the weather typically features a mild average temperature of 16°C (61°F), with maximums reaching as high as 28°C (83°F) and minimums rarely dropping below 1°C (34°F). This month sees a moderate level of precipitation at 42 mm (1.6 in) over about six days, with a humidity level of 73%. In contrast, November brings a notable shift in weather, where the average temperature drops to 6°C (43°F) and the maximums only reach up to 18°C (65°F). The minimum temperatures can plunge to -10°C (15°F), creating a much colder atmosphere. Additionally, November experiences a higher precipitation rate of 102 mm (4.0 in) over ten days and an increased humidity level of 90%. For more detailed information, you can check Sisteron weather in November.
September and December present striking contrasts in weather conditions. In September, temperatures range from a mild 1°C (34°F) at night to a warm average of 16°C (61°F) and peak at 28°C (83°F) during the day, accompanied by relatively low precipitation of 42 mm over six days and a humidity level of 73%. In contrast, December experiences much colder temperatures, with minimums plummeting to -10°C (14°F) and an average temperature of just 3°C (37°F). The month also sees higher precipitation, totaling 120 mm over 11 days, and a significantly elevated humidity level of 90%. For a closer look at December's weather specifics, you can check Sisteron weather in December.
As summer eases into fall in Sisteron, September brings a delightful transition, characterized by mild temperatures and a noticeable increase in humidity. While the month still enjoys warm days, the evenings start to feel cooler, making it the perfect time for cozy gatherings outdoors. With an average humidity of 73% and a moderate amount of precipitation spread over about six days, September sets itself apart from the hotter, drier summer months, creating a refreshing ambiance that welcomes autumn. For more insights on Sisteron's unique climate patterns, visit Sisteron Climate.