Last updated: February 26, 2025
In September, Chartres experiences a dynamic weather pattern, where temperatures fluctuate significantly; the maximum can climb to a scorching 34°C (93°F), while the average settles around a mild 16°C (62°F), and the minimum dips to a chilly 4°C (39°F). The month is characterized by moderate precipitation, totaling 42 mm (1.7 in) across 9 days, contributing to an overall humidity level of 76%. Whether basking in warm, sunny days or feeling the crispness of autumn evenings, visitors to Chartres can enjoy the vibrant mix of seasonal change during this month.
September in Chartres, France heralds the gentle transition from the warmth of summer to the crispness of autumn. With minimum temperatures averaging around 4°C (39°F), it offers a refreshing reprieve from the heat of August. The average temperature settles at a comfortable 16°C (62°F), creating a pleasant climate for outdoor activities and exploration. As the month progresses, daytime temperatures can still reach a warm 34°C (93°F), allowing for lingering summer vibes, while the nights cool down, inviting cozy gatherings. This blend of warmth and coolness marks September as a delightful time to experience the enchanting charm of Chartres before the onset of colder months.
In September, Chartres experiences a moderate precipitation level of 42 mm (1.7 in) spread over 9 days, reflecting a slight decrease from the summer months. This lower rainfall is a part of a broader trend where the transition from the warmer season to autumn typically brings diminishing showers. While May and June record higher totals at 79 mm (3.1 in) and 78 mm (3.1 in) respectively, September's precipitation hints at the impending shift in weather patterns, preparing the landscape for the wetter months ahead. With October set to follow with a notable increase at 72 mm (2.8 in), September serves as a gentle reminder of summer's retreat, making way for the cooler, rainier days of autumn.
As summer transitions into autumn, September humidity in Chartres, France, settles at 76%, marking a noticeable shift from the drier months of July and August, which had reached lows of 73% and 68%, respectively. This uptick reveals a gradual return to the higher moisture levels characteristic of the earlier months in the year. Typically, as the year progresses, Chartres witnesses a steady climb in humidity, peaking around winter; January and February are notably the most humid months, with 91% and 89%, respectively. September, while higher than the summer lows, still remains significantly below the wetter conditions expected in the fall and winter months, setting the stage for the dampness that follows in October and beyond.
As summer bids farewell in September, the UV Index in Chartres, France, reflects a shift towards more moderate sun exposure. With a UV Index of 6, the exposure category is classified as high, necessitating caution during outdoor activities, especially since the burn time decreases to 25 minutes. This transition from the heightened levels of July and August, where the index peaked at 9, suggests that while the sun's rays are still strong, they are beginning to ease. Moving into the fall, residents and visitors should remain mindful of their sun protection strategies to mitigate the risks associated with UV exposure. For more detailed insights, check out Chartres UV Index.
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September in Chartres, France, basks in a generous 318 hours of sunshine, marking a noteworthy transition into the fall months. This vibrant month encapsulates the tail end of summer, as daylight begins to wane after the peak brightness of July, which boasts 409 hours of sun. Following the energetic summer, September's sunshine feels particularly precious, and while it significantly surpasses the diminishing glow of October with 264 hours, it remains a gentle reminder of the sunny days just passed. The gradual decline in daylight hours, beginning with 389 hours in May and culminating in the sharper drop to 203 hours by November, illustrates the subtle dance of the seasons in this picturesque French town, making September a truly enchanting time to experience Chartres before the winter chill sets in.
In Chartres, France, the month of September sees a notable uptick in the likelihood of sunny weather, with a 44% chance of sun. This marks a shift from the summer months, where sunshine opportunities slightly dwindle, hovering at 36% in both July and August. As autumn approaches, September stands out with a higher probability than October's 43%, creating a compelling window for outdoor activities before the days grow shorter and cooler. By comparing September with the earlier months of the year, it's clear that the transition into fall brings more consistent sunshine than the winter and early spring months, making it a favorable time for enjoying the picturesque landscapes of Chartres.
As summer surrenders to autumn, September in Chartres, France showcases a transition in daylight duration, with the sun gracing the sky for approximately 12 hours. This marks a notable decrease from the long, sun-drenched days of June and July, which basked in 16 and 15 hours of daylight, respectively. As the seasons shift, daylight gradually dwindles, with September offering more light than the upcoming October and November—which plummet to 10 and 9 hours respectively. This month serves as a beautiful midpoint, bridging the vibrant energy of summer with the more subdued days of fall, as daylight ebbs but still invites time outdoors amidst the changing leaves.
As the crisp air of September settles in Chartres, France, the average wind speed gently retreats to 3.1 m/s (7 mph), marking a notable decline from the more active summer months. This subtle shift in the breeze signals the transition into autumn, following the higher speeds of May's 4.7 m/s. The trend of decreasing wind continues from June’s calm 2.8 m/s, a stark contrast to the dynamic months of January through April, where wind speeds were more consistent and energetic, averaging around 4.0 m/s. With each passing month, the city experiences a rhythmic ebb and flow in its wind patterns, culminating in refreshing, yet gentle September gusts that invite residents and visitors alike to embrace the cozy charm of the upcoming season.
The weather in Chartres 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 Chartres and find detailed weather information for every month.
In September, temperatures in Chartres range from a min of 4°C (39°F) to a max of 34°C (93°F), with an average of 16°C (62°F), creating a warm and varied climate perfect for outdoor activities. The month sees an average precipitation of 42 mm (1.7 in) across about nine days, accompanied by a humidity level of 76%. In contrast, January brings a stark change, with temperatures dipping significantly; the min is -9°C (17°F) and the max reaches only 14°C (58°F), averaging around 4°C (40°F). Precipitation increases slightly to 49 mm (1.9 in), occurring over ten days, and humidity rises to 91%, contributing to a decidedly colder and more damp environment. For more detailed information on January weather, you can refer to Chartres weather in January.
September and February showcase contrasting weather patterns. September typically enjoys a milder climate with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 34°C (93°F), averaging around 16°C (62°F). The month experiences about 42 mm (1.7 in) of precipitation over approximately 9 days, accompanied by a humidity level of 76%. In contrast, February is much colder, with temperatures dropping as low as -9°C (17°F) and peaking at 20°C (68°F), averaging around 6°C (43°F). It sees more precipitation, totaling 58 mm (2.3 in) over 13 days, and a higher humidity level of 89%. For a detailed look at February's conditions, visit Chartres weather in February.
In comparing the weather patterns of September and March, we see distinct differences in temperature and precipitation. September typically enjoys warmer weather, with minimum temperatures around 4°C (39°F) and average highs reaching up to 34°C (93°F), while March is considerably cooler, with minimum temperatures dropping to -9°C (15°F) and a maximum of 24°C (75°F). September has a lower average precipitation of 42 mm (1.7 in) over about 9 days, whereas March is wetter, with 71 mm (2.8 in) of rain spread across 14 days. Humidity levels also vary, being moderately high in both months, with September at 76% and March slightly higher at 85%. For a deeper dive into March weather specifics, check Chartres weather in March.
When comparing the weather in September to that of April, notable differences emerge. September experiences a broader temperature range, with minimums of 4°C and maximums reaching a warm 34°C, averaging around 16°C. In contrast, April presents cooler conditions, with lows of -4°C and highs of 27°C, resulting in an average temperature of just 11°C. Precipitation levels are relatively comparable, with September receiving 42 mm over about 9 days, while April has slightly less at 34 mm across 7 days. Additionally, April exhibits higher humidity at 84%, compared to 76% in September. For more detailed insights, you can refer to this link: Chartres weather in April.
When comparing the weather in September and May, we see distinct differences in temperature and precipitation patterns. September enjoys a wider temperature range, with minimums around 4°C (39°F) and maximums reaching up to 34°C (93°F), resulting in an average of 16°C (62°F). In contrast, May has cooler temperatures, with minimums dropping to -1°C (31°F) and maximums peaking at 29°C (84°F), leading to an average of 14°C (57°F).
In terms of precipitation, September receives 42 mm (1.7 in) over about 9 days, while May is wetter, with 79 mm (3.1 in) spread across 13 days. Moreover, the humidity levels are slightly higher in May at 82% compared to September’s 76%. For further details on May weather, refer to Chartres weather in May.
In comparing the weather of September and June, September tends to offer a wider temperature range, with minimums starting at 4°C (39°F) and peak temperatures reaching 34°C (93°F). The average temperature sits at 16°C (62°F). In contrast, June experiences slightly higher minimum temperatures at 6°C (42°F), an average of 18°C (65°F), and a maximum of 35°C (96°F). Precipitation is more abundant in June, with 78 mm (3.1 in) over 12 days compared to September's 42 mm (1.7 in) spread across 9 days. Humidity levels are also similar, averaging around 76% in September and 80% in June. For more detailed insights into June's weather patterns, you can explore Chartres weather in June.
When comparing the weather in September to that of July, one notable difference is the average temperatures. September experiences a range from a chilly 4°C (39°F) to a warm 34°C (93°F), while July is typically milder, with temperatures ranging from 7°C (45°F) to a peak of 40°C (105°F). Both months have similar precipitation levels, with September receiving 42 mm (1.7 in) over 9 days and July slightly less at 39 mm (1.5 in) over 8 days. However, September tends to be more humid, averaging around 76% compared to July's 73%. For those interested in exploring July's weather patterns in detail, you can visit Chartres weather in July.
In September, temperatures range from a minimum of 4°C (39°F) to a maximum of 34°C (93°F), with an average of 16°C (62°F), which indicates a slight cooling compared to August's temperatures, which vary between 6°C (43°F) and 37°C (98°F) and average 19°C (67°F). Additionally, September sees a decrease in precipitation, totaling 42 mm (1.7 in) compared to August's 53 mm (2.1 in), despite both months experiencing rainfall on approximately 9 days. Humidity is higher in September at 76%, compared to August's 68%, contributing to a more muggy feel as summer transitions into autumn. For a more detailed comparison of August weather, check out Chartres weather in August.
In September, the weather begins with warm temperatures, featuring a minimum of 4°C (39°F), an average of 16°C (62°F), and a maximum reaching up to 34°C (93°F), accompanied by relatively lower humidity levels of 76%. Precipitation totals around 42 mm (1.7 in) over approximately 9 days.
In contrast, October ushers in cooler conditions, with a minimum temperature of 1°C (34°F) and an average of 12°C (55°F), while the maximum temperature is significantly lower at 26°C (78°F). The month sees an increase in both rainfall and humidity, with 72 mm (2.8 in) of precipitation over 11 days and a higher humidity level of 88%. For a detailed view of the weather in October, visit Chartres weather in October.
September is characterized by much warmer temperatures, with a minimum of 4°C (39°F) and an average of 16°C (62°F), peaking at a maximum of 34°C (93°F). It sees relatively low precipitation at 42 mm (1.7 in) over approximately 9 days, and humidity levels are moderate at 76%. In contrast, November experiences a notable drop in temperature, where the minimum can reach -3°C (26°F) and the average settles at 7°C (46°F), with a maximum of 18°C (65°F). The month also brings increased precipitation, totaling 62 mm (2.4 in) over about 12 days, and higher humidity levels at 92%. This stark contrast highlights the transition from the warmth of early autumn to the chill and dampness of late fall. For more detailed information, you can check Chartres weather in November.
September and December exhibit stark contrasts in weather patterns. In September, temperatures range from a minimum of 4°C (39°F) to a maximum of 34°C (93°F), with an average of 16°C (62°F). The month experiences relatively low precipitation of 42 mm (1.7 in) over about 9 days and a moderate humidity level of 76%. Conversely, December sees significantly cooler temperatures, with a minimum of -4°C (25°F), an average of 6°C (43°F), and a maximum of 15°C (59°F). This month also experiences higher precipitation, totaling 89 mm (3.5 in) across 16 days, and the humidity rises to 93%. For a more detailed look at the weather conditions, you can check Chartres weather in December.
As September rolls in, Chartres experiences a notable transition, moving away from the summer heat into a more moderate climate. With an average temperature that is pleasantly cool, the month feels distinctly different from the sweltering peaks of July and August. Although occasional warm days can still reach up to 34°C, the increasing humidity at 76% and the likelihood of rain (42 mm over about 9 days) remind us that autumn is on the horizon. This blend of warm and crisp days, complemented by refreshing showers, creates the ideal backdrop for exploring the city's historical gems. For a deeper dive into the year-round weather patterns, visit Chartres Climate.