Last updated: February 26, 2025
In September, Le Castellet, France, experiences a delightful blend of warm and mild weather. With maximum temperatures reaching 28°C (82°F) and an average of 21°C (69°F), the days are pleasant for outdoor activities. Nights cool down to a minimum of 10°C (51°F), providing a refreshing respite. Despite the relatively comfortable climate, the region sees approximately 38 mm (1.5 in) of precipitation across five rainy days, resulting in a humidity level of 71% that enhances the lush landscapes. This month offers an enchanting atmosphere to explore the unique charm of Le Castellet.
In September, Le Castellet, France, begins to transition into the gentle embrace of autumn, showcasing a delightful climate that balances warmth with cool breezes. With minimum temperatures around 10°C (51°F) and averages peaking at 21°C (69°F), it's an inviting time for visitors looking to escape the summer heat while still enjoying the lingering sunshine. The maximums reach a pleasant 28°C (82°F), making it ideal for outdoor activities and exploring the picturesque landscapes that define this charming region. As the month progresses, the warmth subtly declines, setting the stage for the cooler months ahead, yet September remains a month of vibrant weather and abundant outdoor opportunities.
In September, Le Castellet experiences a notable shift in precipitation as the summer heat begins to wane. With 38 mm (1.5 in) of rainfall spread across 5 days, this month marks a transition towards wetter conditions, particularly when compared to the arid summer months of July and August, which saw only 12 mm (0.5 in) and 17 mm (0.7 in), respectively. The rainfall in September sets the stage for October's dramatic increase, where precipitation often more than doubles, signaling the approaching autumnal deluge. This pattern highlights the changing season, as the region prepares for a wetter climate leading into the fall months.
In September, Le Castellet experiences a humidity level of 71%, marking a subtle upturn from the drier summer months of July and August, which recorded 69% and 66% respectively. This slight increase suggests a transition as the region shifts from the warmth of summer to the cooler embrace of autumn. As the year progresses, humidity levels tend to rise again, peaking in the cooler winter months, with January reaching 80%. Overall, the humidity trend showcases a seasonal fluctuation, with summer months generally being less humid while fall and winter see a gradual increase, enveloping the picturesque landscape of Le Castellet in its characteristic charm.
In September, Le Castellet experiences a UV Index of 7, categorizing it within the high exposure range, which translates to a burn time of 25 minutes. This slight decrease from the peak summer months—where the index soared to 10 in June and 9 in July and August—indicates that while the days are still warm and sunny, the risk of overexposure to UV rays is lower than at the height of summer. As the season transitions into autumn, visitors and residents alike should still remain vigilant about sun safety while enjoying the vibrant scenery. For more detailed information on UV levels throughout the year, visit Le Castellet UV Index.
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In Le Castellet, France, September marks the gentle descent from the height of summer, still basking in a robust 345 hours of sunshine. While it heralds the arrival of autumn, this month continues the trend of abundant sunlight that peaks in the sweltering summer months, particularly July with a remarkable 436 hours. As summer fades, September's sunshine remains a delightful companion, outshining several months of the year. The gradual decline through October and November, with their lower totals at 310 and 252 hours respectively, hints at the inevitable embrace of winter. Nevertheless, this month stands as a beautiful bridge, where the warmth of summer lingers just a little longer, inviting visitors to relish the idyllic charm of the French countryside.
In Le Castellet, France, September offers a moderate chance of sunshine, sitting at 52%. While this marks a slight dip from the sun-drenched heights of summer, particularly August's peak of 72%, it still showcases a favorable trend for those seeking pleasant weather. From the beginning of the year, the chances of sunny days steadily increase, culminating in the vibrant months of July and August. Following this, September's sunshine likelihood reaffirms its role as a transitional month, bridging the warmth of summer into the cooler autumn days while remaining more favorable than the spring months. So, if you're planning a visit, you can expect a mix of sunny spells amid the early autumn charm!
As the summer sun begins to wane in September, Le Castellet experiences a gradual decrease in daylight, offering 12 hours of light each day. Following the highs of 15 hours in June and a still-pleasant 14 hours in July, September marks a transitional phase where longer days of summer gently give way to the cozy beginnings of autumn. This rhythmic ebb of daylight continues into October with only 10 hours on the horizon, hinting at the shorter days of winter ahead. Through this shift, the charm of the region evolves, inviting locals and visitors alike to embrace the softer, golden tones of early fall.
As summer gives way to autumn, September in Le Castellet presents a gentle breeze with an average wind speed of 4.1 m/s (9 mph). This marks a subtle dip from the more vibrant summer months, where winds ranged from 4.2 to 4.3 m/s. The consistent patterns observed throughout the year reveal that while the spring and early summer months tend to be slightly breezier, September continues to exhibit a mild and comfortable atmospheric presence. As the season shifts, the air remains invigorating yet serene, perfectly complementing the picturesque landscapes of this charming French town.
The weather in Le Castellet 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 Le Castellet and find detailed weather information for every month.
In September, the weather is generally warmer and more pleasant, with average temperatures reaching around 21°C (69°F) and maximums climbing to 28°C (82°F). The humidity is relatively comfortable at 71%, and there is light precipitation of about 38 mm (1.5 in) over approximately five days. In contrast, January brings a much cooler climate, with average temperatures dropping to 8°C (47°F) and highs of only 16°C (61°F). The month also experiences slightly higher precipitation at 55 mm (2.1 in) across six days, coupled with increased humidity at 80%. For more specific details on January weather, you can check out Le Castellet weather in January.
When comparing the weather in September and February, there is a stark contrast in temperatures and conditions. September enjoys a mild climate with average temperatures around 21°C (69°F) and maximums reaching 28°C (82°F), while February sees cooler temperatures, averaging only 10°C (49°F) and peaking at 18°C (65°F). Rainfall is slightly higher in February, totaling 44 mm (1.8 in) over about 7 days, compared to September's 38 mm (1.5 in) over 5 days. Additionally, February experiences higher humidity, at 73%, compared to September's 71%. For a more detailed look at February weather in this region, visit Le Castellet weather in February.
In September, the weather is typically warmer, with average temperatures around 21°C (69°F) and a maximum of 28°C (82°F), making it more suitable for outdoor activities. The month sees relatively low precipitation at 38 mm (1.5 in) over 5 days, contributing to a pleasant climate with a humidity level of 71%. In contrast, March experiences cooler temperatures, with an average of 11°C (52°F) and a maximum reaching 20°C (67°F), along with increased rainfall of 54 mm (2.1 in) spread over 7 days. Despite the chill, March shares a similar humidity level of 71%, highlighting a transition in weather patterns. For more detailed information on the weather in March, you can visit Le Castellet weather in March.
When comparing the weather in September and April, significant differences become apparent. September typically enjoys warmer temperatures, with a minimum of 10°C (51°F), an average of 21°C (69°F), and a maximum of 28°C (82°F). In contrast, April presents cooler conditions, with temperatures ranging from a low of 2°C (37°F) to a high of 22°C (71°F) and an average of just 13°C (56°F). Additionally, April sees more frequent precipitation, totaling 72 mm (2.8 in) over about 10 days, compared to September's 38 mm (1.5 in) over just 5 days. The humidity levels are also slightly higher in April at 75%, compared to 71% in September. For a closer look at the specifics, you can check Le Castellet weather in April.
In comparing the weather of September and May, September generally offers warmer temperatures, with an average high of 21°C (69°F) compared to May's average of 17°C (62°F). While both months experience pleasant temperatures, September can reach a maximum of 28°C (82°F), slightly warmer than May's maximum of 27°C (81°F). Precipitation in May is notably higher, with 64 mm (2.5 in) falling over 9 days, contrasting with September's 38 mm (1.5 in) over just 5 days. Humidity levels are also similar, with September averaging 71% and May slightly higher at 74%. For a closer look at the specific weather conditions in May, you can visit Le Castellet weather in May.
September and June weather display some similarities but also distinct differences. Both months feature an average temperature around 21°C (70°F), but September tends to have slightly cooler minimum temperatures, starting at 10°C (51°F), compared to June's 13°C (56°F). June brings warmer maximum temperatures, peaking at 30°C (87°F), while September's max is a bit lower at 28°C (82°F). Additionally, September experiences a bit more precipitation, with 38 mm (1.5 in) over 5 days, versus June’s 28 mm (1.1 in) on the same number of rainy days. Humidity levels remain quite comparable, with September at 71% and June slightly higher at 72%. For a closer look at the weather specifics, check out Le Castellet weather in June.
In comparing the weather between September and July, September generally presents a milder climate with a minimum temperature of 10°C (51°F), an average of 21°C (69°F), and a maximum of 28°C (82°F). While it experiences slightly higher humidity at 71%, it also sees more days of precipitation, totaling 5 days with 38 mm (1.5 in) of rainfall. In contrast, July is warmer, with minimum temperatures of 16°C (61°F) and a maximum of 30°C (86°F), yet it enjoys less rainfall, only 12 mm (0.5 in) over just 2 days, with humidity at a lower 69%. For more detailed insights, you can check Le Castellet weather in July.
In August, the weather is typically warmer with average temperatures reaching 24°C (75°F) and maximums peaking at 31°C (89°F). Additionally, it experiences lower precipitation levels, averaging just 17 mm (0.7 in) over only one day. In contrast, September sees cooler temperatures, with a minimum of 10°C (51°F) and an average of 21°C (69°F). Although September is milder, it has increased rainfall, totaling 38 mm (1.5 in) over five days, along with slightly higher humidity at 71%. For a more detailed look at August weather, you can check Le Castellet weather in August.
As summer transitions into autumn, the weather in September offers a mild climate with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 28°C (82°F). With an average temperature of 21°C (69°F) and relatively low precipitation of 38 mm (1.5 in) over about 5 days, September remains relatively pleasant, although humidity is moderately high at 71%.
In contrast, October presents a cooler and wetter atmosphere, with temperatures dropping to a minimum of 8°C (46°F) and peaking at 24°C (76°F), averaging around 17°C (62°F). This month sees an increase in precipitation, totaling 90 mm (3.6 in) across 7 days, and a rise in humidity to 78%. The shift to cooler weather and higher rainfall marks a significant change as the region prepares for the winter months. For more details, you can check the Le Castellet weather in October.
September typically offers warmer weather with average temperatures around 21°C (69°F), peaking at 28°C (82°F), while November brings cooler conditions with an average of 12°C (55°F) and a maximum of 19°C (66°F). The transition from September to November also brings a significant increase in precipitation, with November experiencing 134 mm (5.3 in) over 12 days compared to September's 38 mm (1.5 in) over just 5 days. Humidity levels rise slightly in November, reaching 82% compared to 71% in September, contributing to a distinctly more brisk and damp atmosphere. For more specific insights into November weather in the region, you can check Le Castellet weather in November.
September and December exhibit stark contrasts in weather. In September, temperatures are milder, with minimums around 10°C (51°F) and maximums reaching up to 28°C (82°F), while average temperatures hover around 21°C (69°F). This month also sees relatively low precipitation, with only 38 mm (1.5 in) over about five days and humidity levels at 71%. In contrast, December brings cooler conditions, with a minimum of -1°C (31°F) and an average of 9°C (49°F), capping at a maximum of 17°C (63°F). Precipitation is more frequent in December, totaling 84 mm (3.3 in) over ten days and higher humidity at 79%. For more details on the December weather in Le Castellet, visit Le Castellet weather in December.
September in Le Castellet offers a delightful transition from the summer heat, boasting pleasant average temperatures around 21°C while still allowing for warm days reaching up to 28°C. Unlike the scorching summer months, the humidity is moderately comfortable at 71%, making outdoor activities enjoyable. With only five rainy days contributing to a total of 38 mm of precipitation, September remains relatively dry compared to the rainy autumn months ahead. As the landscapes begin to change, this month invites visitors to experience the beauty of the region without the overwhelming heat. For a deeper dive into the weather patterns and conditions year-round, check out Le Castellet Climate.