Last updated: February 26, 2025
In Rouen, France, September is characterized by a pleasant blend of warm and cool temperatures, ranging from a maximum of 30°C (87°F) to a refreshing 4°C (39°F) at night. The average temperature holds steady at a mild 16°C (60°F), making it an ideal time for outdoor exploration. Visitors should be prepared for some rain, as the month sees approximately 52 mm (2.1 in) of precipitation spread over 10 days, contributing to the region's lush greenery. With a humidity level of 76%, the air can feel a bit moist, but the overall climate invites both locals and tourists to enjoy the beautiful early autumn scenery of this historic city.
In September, Rouen experiences a delightful transition as summer whispers its last goodbyes. With minimum temperatures around 4°C (39°F) and averages hitting 16°C (60°F), the city begins to cool down, yet still boasts pleasant days with maximums reaching 30°C (87°F). This month marks a noticeable shift from the sweltering highs of August, where temperatures soared close to 36°C (98°F). Instead, September offers a beautiful balance, making it a perfect time for outdoor explorations amidst the vibrant autumn foliage. As the days gradually shorten, the comforting warmth is ideal for savoring Rouen's rich history and picturesque streets, perfectly capturing the essence of early fall.
In September, Rouen experiences a transition as summer gives way to autumn, reflected in its precipitation patterns. With an average of 52 mm (2.1 in) of rainfall over around 10 days, September marks a noticeable decrease in precipitation compared to the wetter months of May and October. This decline aligns with the pattern of summer's drier conditions, as seen in July and August. The 10 days of rain also suggest a shift towards more stable weather, paving the way for the crispness of fall. Overall, the month encapsulates a gentle easing of summer's grip, making way for the rich tapestry of autumnal weather ahead.
In Rouen, France, the humidity levels exhibit a distinct seasonal pattern throughout the year. Beginning with high percentages in the winter months, humidity peaks at a remarkable 91% in January and maintains elevated levels until March. As spring unfolds, a gradual decrease is noted, with humidity reaching a pleasant 82% in May. The summer months bring a refreshing drop, culminating in a comfortable 68% in August. However, as September arrives, humidity increases slightly to 76%, signaling the transition toward autumn. This rise foreshadows the return of higher humidity levels in the following months, as October and November see a return to more humid conditions, peaking at 92% by November. The overall trend reveals a fascinating ebb and flow, with Rouen's climate shifting from damp winter chills to the drier warmth of summer, before cycling back into the soggy embrace of autumn.
As September settles in Rouen, France, the UV Index drops to 6, indicating a high level of sun exposure. This decrease marks a transition from the intense summer months, where the UV Index peaked at 9 in June. With a burn time of just 25 minutes, it's essential to stay vigilant about sun protection, especially when engaging in outdoor activities. Compared to the earlier summer months, September offers a respite, yet it's crucial to remember that UV rays can still cause damage. For more insights on seasonal UV trends, check out Rouen UV Index.
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In September, Rouen basks in the afterglow of summer, enjoying a generous 329 hours of sunshine. This month reflects a gradual decline from the peak brightness of July, which boasts an impressive 427 hours. Following the vibrant months of spring and summer, where sunlight flourished—especially in May and June, with 408 and 420 hours respectively—September serves as a gentle reminder of the impending autumn. The sunlight begins to wane, yet this transition creates a picturesque backdrop, bathing the historic city in a warm, golden hue. As the days shorten and October approaches with its 271 hours, September's lingering warmth invites locals and visitors alike to savor the last moments of summer's embrace in this charming French city.
As September rolls into Rouen, France, residents can expect a 36% chance of sunny weather, which is a slight uptick compared to the summer months of July and August, both hovering around 34%. This modest increase reflects a pattern in which the transition to autumn brings a gradual fluctuation in sunshine probability. Notably, April boasts the highest likelihood at 56%, while the winter months show a significant drop, with January at just 15%. Thus, September offers a delightful balance, allowing for glimpses of sunlight as summer fades, contributing to its charm as a month of potential warmth before falling into the cooler days of fall.
As summer fades, September ushers in a gentle decline in daylight for the charming city of Rouen, France, offering around 12 hours of sunlight. This transitional month marks a shift from the peak bask of June, which enjoys a glorious 16 hours, gradually tapering to 10 hours by October. The pattern reveals a graceful decline post-summer, as the days grow shorter and the crispness of autumn sets in. Despite the decrease, September still offers more light than the early months of the year, where January and December struggle with merely 8 hours of daylight. This harmonious change invites a seasonal reflection, reminding us to savor the warm days before the cooler shadows of fall embrace the region.
In September, the winds in Rouen, France, tend to embrace a gentle tranquility, with an average speed of 3.0 m/s (7 mph)—the year’s softest breath. This marks a notable reduction from the brisker gusts experienced in the spring and summer months, where winds often peaked around 4.4 m/s (10 mph). As autumn approaches, the calmness can evoke a sense of reflection, hinting at the seasonal shift that will soon bring more invigorating breezes. Interestingly, while July and August maintained a steady pace, September leads into October, where the winds regain vigor at 4.0 m/s (9 mph), suggesting a cyclical return to livelier conditions as the year winds down.
The weather in Rouen 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 Rouen and find detailed weather information for every month.
In September, temperatures in the region range from a cool 4°C (39°F) at night to a warm 30°C (87°F) during the day, with an average temperature of 16°C (60°F). With 52 mm (2.1 in) of precipitation spread over about 10 days and a humidity level of 76%, the weather can be quite pleasant but slightly humid. In contrast, January brings significantly colder weather, with temperatures dipping as low as -7°C (20°F) at night and peaking at 15°C (59°F) during the day, leading to an average temperature of 5°C (41°F). The month sees a bit more rainfall at 64 mm (2.5 in) over 11 days and a higher humidity of 91%, creating a more wintry atmosphere. For more details, you can check Rouen weather in January.
September and February present contrasting weather conditions in terms of temperature and humidity. In September, temperatures range from a minimum of 4°C (39°F) to a maximum of 30°C (87°F), with an average of 16°C (60°F) and relatively lower humidity at 76%. However, precipitation is frequent, with rain on about 10 days and a total of 52 mm (2.1 in) throughout the month.
In contrast, February is significantly colder, with temperatures ranging from a minimum of -7°C (20°F) to a maximum of 18°C (65°F), averaging just 6°C (43°F). The month experiences higher humidity at 89%, alongside increased precipitation of 69 mm (2.7 in) spread over 13 days. Overall, February is marked by chilly conditions and more consistent rain compared to the warmer and drier September. For more detailed insights on February weather, check out Rouen weather in February.
In comparing the weather of September and March, we observe notable differences in temperature and precipitation. September enjoys milder temperatures, with averages ranging from a minimum of 4°C (39°F) to a maximum of 30°C (87°F), while March is cooler, with temperatures typically varying from a minimum of -8°C (17°F) to a maximum of 23°C (74°F). Although September has slightly lower precipitation at 52 mm (2.1 in) over about 10 days, March is wetter, with 78 mm (3.1 in) recorded across approximately 15 days. Humidity levels are also higher in March, averaging 85% compared to September's 76%. For those interested in the specific weather patterns of March, you can explore more Rouen weather in March.
September and April exhibit notable differences in weather patterns. In September, temperatures range from a cool 4°C (39°F) at night to a warm 30°C (87°F) during the day, averaging around 16°C (60°F). The month sees about 52 mm (2.1 in) of precipitation over approximately 10 days, with a humidity level of 76%. In contrast, April's temperatures dip lower, with a minimum of -3°C (28°F) and a maximum of 26°C (80°F), averaging at 10°C (51°F). This month experiences slightly less rainfall at 38 mm (1.5 in) over about 8 days, but the humidity is somewhat higher at 84%. For more detailed insights into April's weather, you can refer to Rouen weather in April.
In September, temperatures range from a minimum of 4°C (39°F) to a maximum of 30°C (87°F), with an average of 16°C (60°F), while May exhibits cooler temperatures, starting at 1°C (34°F) and peaking at 27°C (82°F), averaging around 13°C (56°F). Both months experience a fair amount of precipitation; however, September sees 52 mm (2.1 in) over 10 days, compared to May's 93 mm (3.6 in) over 13 days. Humidity levels are relatively similar, with September at 76% and May slightly higher at 82%. For more insights, check out Rouen weather in May.
In comparing the weather between September and June, it’s evident that both months present varying conditions. September showcases a wider temperature range, with minimums dropping to 4°C (39°F) and maximums reaching up to 30°C (87°F), offering a more moderate average of 16°C (60°F). In contrast, June tends to be slightly warmer, with minimums at 6°C (44°F) and maximums soaring to 34°C (93°F), averaging around 17°C (63°F). Precipitation also differs; September experiences 52 mm (2.1 in) over about 10 days, while June sees a higher total of 78 mm (3.1 in) spread across 12 days. Humidity levels are comparable, with September at 76% and June slightly higher at 80%. For those interested in the specifics of June weather, more details can be found here: Rouen weather in June.
When comparing the weather in September to that of July, notable differences in temperature and humidity emerge. September sees a wider temperature range, with minimums dropping to 4°C (39°F) and maximums reaching 30°C (87°F), while July remains relatively warmer with minimums at 8°C (47°F) and maximums spiking to 39°C (102°F). Both months record similar precipitation levels at approximately 52 mm (2.1 inches in September and 2.0 inches in July), though September experiences slightly more rainy days, with precipitation occurring on 10 days compared to 9 in July. Humidity levels are also comparable, with September at 76% and July at 73%. For more detailed information on July weather patterns, you can visit Rouen weather in July.
In comparing the weather of September to that of August, we can see notable differences in temperature and precipitation. September experiences a broader temperature range, with minimums dropping to 4°C (39°F) and maximums reaching up to 30°C (87°F), compared to August, which is generally warmer with minimums at 7°C (44°F) and maximums soaring to 36°C (98°F). Additionally, September sees slightly less precipitation, totaling 52 mm (2.1 in) over about 10 rainy days, while August has more precipitation at 74 mm (2.9 in) across 11 days. It is also interesting to note the increased humidity in September at 76%, compared to August's 68%. For those wanting more detailed insights on August weather, you can view it here: Rouen weather in August.
In September, the weather is generally warmer, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 30°C (87°F) and an average of 16°C (60°F). The month also sees a fair amount of precipitation, with around 52 mm (2.1 in) falling over approximately 10 days and a humidity level of 76%. In contrast, October brings cooler temperatures, with a minimum of 1°C (35°F), an average of 12°C (54°F), and a maximum of 24°C (76°F). Rainfall increases to 82 mm (3.2 in), occurring over about 13 days, while humidity rises to 88%. For those interested in more detailed weather patterns for this month, you can check Rouen weather in October.
September and November present distinctly different weather patterns. In September, temperatures range from a mild 4°C (39°F) at night to a warm 30°C (87°F) during the day, with an average of 16°C (60°F). The month sees about 52 mm (2.1 in) of precipitation over 10 days, along with a humidity level of 76%. In contrast, November marks a significant drop in temperatures, with minimums reaching -2°C (28°F) and an average temperature of 8°C (46°F). The maximum temperature in November is 18°C (65°F), and precipitation increases to 81 mm (3.2 in) over 13 days, accompanied by higher humidity at 92%. For more details, you can check out Rouen weather in November.
September and December present stark contrasts in weather. In September, temperatures can range from a cool 4°C (39°F) at night to a warm 30°C (87°F) during the day, with an average of 16°C (60°F). The month sees relatively moderate precipitation of 52 mm (2.1 in) over about 10 days and a humidity level of 76%. In contrast, December brings colder weather, with temperatures dropping as low as -4°C (26°F) and averaging only 6°C (44°F). The maximum temperature reaches 15°C (59°F), but the month is significantly wetter, with 116 mm (4.6 in) of precipitation spread over 18 days and higher humidity at 93%. For more information on December's climate specifics, visit Rouen weather in December.
As September ushers in the subtle transitions of autumn, Rouen experiences a delightful balance between warmth and crispness. The days are pleasantly temperate, allowing for leisurely outdoor activities, while the evenings begin to cool down, hinting at the approaching fall season. Compared to the sweltering summer months, this period sees a reduction in extreme heat, alongside moderate rainfall that nurtures the lush landscape. The increased humidity adds a touch of softness to the air, creating a refreshing ambiance. For a deeper dive into how the weather in Rouen varies throughout the year, visit Rouen Climate.