Last updated: February 26, 2025
As September unfolds in France, a delightful interplay of temperatures characterizes the month. With maximums reaching up to 32°C (90°F) and an average temperature of 16°C (62°F), the season serves up a mild climate perfect for outdoor activities. However, the evenings can turn crisp, dipping to a minimum of 4°C (40°F), reminding us of the approaching autumn. Precipitation is modest, with 41 mm (1.6 in) over 9 days, inviting a refreshing, albeit humid atmosphere at 76% humidity. This blend of warmth, cool nights, and occasional rain creates a picturesque setting for both locals and visitors to enjoy the charm of September in France.
September in France ushers in a transition from the sweltering summer heat to more temperate conditions. With minimum temperatures around 4°C (40°F) and average highs peaking at 32°C (90°F), this month provides a delightful blend of warmth and early autumn freshness. As the month progresses, the average temperature settles at a comfortable 16°C (62°F), ideal for outdoor activities and exploring the picturesque landscapes. This gradual cooling trend not only signals the end of the extreme summer heat—where temperatures soared to 40°C (104°F) in July and 37°C (99°F) in August—but also invites the vibrant hues of fall. September truly encapsulates a time of balance, where the lingering warmth meets the crispness of approaching autumn.
In September, the United States and France experienced a dip in precipitation, recording 41 mm (1.6 in), which marks a notable decrease compared to the summer months. This pattern reflects a transition as the regions move away from the wetter conditions of July and August, characterized by 47 mm (1.8 in) and 58 mm (2.3 in), respectively. September saw precipitation over 9 days, suggesting a sporadic rainfall pattern typical of early autumn. Looking ahead to October, expectations for a rebound in precipitation rise, as historical data indicates an increase to 77 mm (3.0 in), hinting at the seasonal shift towards wetter weather. Overall, September serves as a bridge between summer's fullness and the onset of fall, showcasing nature's ebb and flow in precipitation trends.
In September, humidity in both the U.S. and France shows a slight rebound, rising to 76% after the drier summer months, where it dipped to a comfortable 68% in August. This uptick hints at the transition towards autumn, as the air begins to hold more moisture again. Throughout the year, humidity levels peak during the winter months, with January reaching a significant 91%, while summer brings lower readings, with July seeing just 73%. The September figures suggest a gradual return to the wetter patterns of late autumn, as humidity levels are poised to climb further in the coming months, culminating in the yearly highs of 92% in November and peak 93% in December. This pattern reflects the shifting seasons, where warmer weather gives way to the cooler, more humid months ahead.
As summer gives way to fall, the September UV Index offers a noticeable shift in sun exposure compared to the hotter months. With an index of 6, categorized as high, the risk of harm from unprotected sun exposure remains significant, necessitating a burn time of just 25 minutes before skin damage can occur. This drop from the very high category seen in July and August, which boasted indices of 8 and 9, indicates a gradual decrease in intensity. However, vigilance is still essential as September sunshine can still pose risks, especially in regions like the US and France. For more insights on UV conditions across these locations, visit Us UV Index.
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As summer wanes and autumn approaches, September brings a delightful 323 hours of sunshine to France, marking a gentle transition from the peak summer brilliance of 410 hours in July and June. This shift highlights the slow cooling of the year, yet September still retains a generous share of sunlight compared to the earlier months of winter. The sun-soaked days of May and June set a high standard, making September feel like a lingering embrace of summer before the fading light of October reduces the hours to 267. It's a time for enjoying the last warm days, where golden evenings encourage outdoor gatherings and the rich harvest of autumn begins. As the chart suggests, while the radiance of summer slips away, September offers a vibrant reminder of sunny days past, leaving us longing for more.
As the seasons shift towards autumn, September showcases a moderate 40% chance of sunny weather in both the US and France. While this figure is an improvement over the gloomier winter months, it's still lower than the spring's peak, where sunny chances soar to 57% in April. Interestingly, summer months maintain a steady 36% chance of sun, indicating that while the warmth of summer may linger, September introduces a more unpredictable element to the weather. Overall, this transitional month presents a delightful blend of sunny afternoons and cooler evenings, perfect for enjoying the tail end of summer.
As we transition into September, the daylight duration in both the US and France begins to taper off, offering 12 hours of light. This marks a noticeable shift from the long, sun-drenched days of summer, peaking at 16 hours in June, before gradually declining through the autumn months. Starting from the early part of the year, where daylight lasts just 8 hours in January, the increase through spring and summer reflects a natural rhythm of longer days, peaking in June. September, while still providing ample daylight, signals the approach of fall as the hours begin to shorten, leading into the shorter days of October's 10 hours. This gradual ebb of daylight is not just a marker of changing seasons, but also a reminder of the interplay between nature and time that shapes our daily lives.
As September unfolds in France, the average wind speed dips to a gentle 2.7 m/s (6 mph), marking it as one of the calmest months in the annual cycle. This trend of decreasing winds starts in June, where a notable drop to 2.6 m/s occurs, and the slight variations throughout the summer months hint at a transition into autumn. Compared to January's brisk 3.9 m/s, the September breeze offers a tranquil contrast, inviting a contemplative atmosphere. Such a decrease is typical as the seasons shift, showcasing a consistent pattern of lower wind speeds during the late summer and early fall while hinting at a revival with the return of stronger gusts expected in October at 3.7 m/s. Clearly, each month holds its own rhythm, yet September stands out as a serene prelude to the winds of winter.
The weather in Us 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 Us and find detailed weather information for every month.
September and January present stark contrasts in weather. In September, temperatures range from a chilly minimum of 4°C (40°F) to a warm maximum of 32°C (90°F), with an average of 16°C (62°F), and the humidity stands at 76%. The month experiences 41 mm (1.6 in) of precipitation over approximately 9 days. In contrast, January sees much colder conditions, with temperatures dropping down to a minimum of -7°C (20°F) and peaking at a maximum of 15°C (58°F), averaging around 5°C (40°F). The winter month is slightly wetter, with 54 mm (2.1 in) of precipitation spread over 10 days, and humidity climbs to 91%. For a deeper look into the weather characteristics of January, visit Us weather in January.
September and February present distinctly different weather patterns. In September, temperatures range from a mild 4°C (40°F) to a warm 32°C (90°F), with an average of 16°C (62°F) and comparatively lower humidity at 76%. The month experiences some rainfall, totaling 41 mm (1.6 in) over about 9 days. In contrast, February brings cooler temperatures, with a minimum of -6°C (21°F) and a maximum of 19°C (67°F), averaging 6°C (43°F). It also sees higher precipitation levels at 67 mm (2.6 in) spread over 13 days, along with increased humidity at 89%. For more detailed insights on February weather, visit Us weather in February.
September and March present markedly different weather patterns. In September, temperatures range from a cool 4°C (40°F) at night to a warm 32°C (90°F) during the day, with an average of 16°C (62°F). The month sees relatively moderate precipitation of 41 mm (1.6 in) over about 9 days, with humidity around 76%. In contrast, March experiences much lower temperatures, with lows of -8°C (18°F) and highs of 24°C (75°F), averaging at 8°C (47°F). Precipitation is higher at 76 mm (3.0 in), occurring over 15 days, and the humidity increases slightly to 85%. For more insights into March weather, visit Us weather in March.
When comparing the weather in September and April, we see distinct differences. September typically enjoys milder temperatures, with averages around 16°C (62°F) and highs reaching up to 32°C (90°F). In contrast, April is cooler, with average temperatures of 11°C (52°F) and maximums peaking at 27°C (80°F). Precipitation levels are relatively similar, with September receiving 41 mm (1.6 in) over 9 days and April slightly less at 36 mm (1.4 in) across 7 days. Additionally, the humidity in September is slightly lower at 76%, compared to April's higher humidity level of 84%. For a more detailed look at weather patterns, check out Us weather in April.
In comparing the weather between September and May, September generally experiences a wider temperature range with minimums of 4°C (40°F) and maximums reaching up to 32°C (90°F), resulting in an average temperature of 16°C (62°F). In contrast, May is cooler overall, with temperatures ranging from a minimum of 1°C (33°F) to a maximum of 29°C (84°F) and an average of 14°C (57°F). Precipitation is also more significant in May, totaling 73 mm (2.9 in) over 13 days, compared to September’s 41 mm (1.6 in) over 9 days. Humidity levels are slightly higher in May at 82%, compared to 76% in September, suggesting that May might feel a bit more humid despite generally being cooler. For more detailed information on May weather, you can visit Us weather in May.
September generally showcases a more varied temperature range compared to June, with minimums dipping to 4°C (40°F) and maximums reaching up to 32°C (90°F). In contrast, June has a slightly higher minimum temperature of 6°C (43°F) and maxing out at 35°C (95°F), offering a consistent warmth throughout the month. Precipitation is also noteworthy; September receives 41 mm (1.6 in) over 9 days, whereas June sees significantly more rain at 79 mm (3.1 in) across 12 days. Humidity levels remain similar, hovering around 76% in September and 80% in June. For more detailed insights into the weather during this time, check out Us weather in June.
In comparing the weather between September and July, we notice significant differences in temperature and precipitation patterns. September experiences a wider temperature range, with minimums dropping to 4°C (40°F) and maximums reaching up to 32°C (90°F), creating an average of 16°C (62°F). In contrast, July maintains milder minimums at 8°C (46°F) and higher maximums peaking at 40°C (104°F), leading to an average of 20°C (68°F). Precipitation is slightly higher in July at 47 mm (1.8 in) over 8 days, while September sees 41 mm (1.6 in) over 9 days, indicating a similar distribution of rainfall. Additionally, humidity levels are slightly elevated in September at 76%, compared to July's 73%. For further details on weather patterns, you can explore Us weather in July.
In comparing the weather between August and September, we observe notable differences in temperature and precipitation. August tends to be warmer, with minimum temperatures around 7°C (45°F) and maximums reaching up to 37°C (99°F), resulting in an average temperature of 19°C (67°F). In contrast, September features a cooler temperature range, with minimums dropping to 4°C (40°F) and maximums peaking at 32°C (90°F), leading to an average of 16°C (62°F). Additionally, September experiences slightly less precipitation, totaling 41 mm (1.6 in) over 9 days, compared to August's 58 mm (2.3 in) over 10 days. Interestingly, humidity is higher in September at 76%, while August averages at 68%. For a more detailed look at August weather, visit Us weather in August.
In comparing the weather of September and October, September generally offers warmer temperatures with a minimum of 4°C (40°F) and an average of 16°C (62°F), peaking at 32°C (90°F). The month sees less precipitation at 41 mm (1.6 in) over 9 days and a humidity level of 76%. In contrast, October brings cooler temperatures, with a minimum of 2°C (35°F) and an average of 13°C (55°F), and a maximum reaching 25°C (78°F). October also experiences increased rainfall, with 77 mm (3.0 in) distributed across 12 days, along with higher humidity averaging at 88%. For more detailed information, visit Us weather in October.
September and November showcase a marked transition in weather patterns. In September, temperatures range from a mild 4°C (40°F) at night to a warm 32°C (90°F) during the day, creating an average of 16°C (62°F). This month sees relatively low precipitation at 41 mm (1.6 in) over about 9 days, along with a humidity level of 76%. In contrast, November brings cooler temperatures, with minimums dipping to -2°C (28°F) and an average of 8°C (46°F), peaking at 19°C (66°F). The month experiences increased precipitation, totaling 65 mm (2.6 in) across 12 days, and a higher humidity of 92%. For a more detailed look at weather conditions in November, you can explore the following link: Us weather in November.
September and December present contrasting weather patterns, characterized by temperature variations and differing humidity levels. In September, temperatures range from a mild 4°C (40°F) at night to a warm 32°C (90°F) during the day, with an average of 16°C (62°F). The month experiences relatively low precipitation at 41 mm (1.6 in) over about 9 days, and humidity stands at 76%. In contrast, December sees much colder temperatures with a minimum of -3°C (27°F) and a maximum of 15°C (59°F), averaging just 6°C (43°F). Rainfall is significantly higher at 101 mm (4.0 in) across 18 days, accompanied by increased humidity at 93%. For more detailed information, you can check Us weather in December.
As summer transitions to autumn, September in Us brings a refreshing change in weather, with moderate temperatures averaging around 16°C while peaking at 32°C during the warmer days. Unlike the sweltering heat of July and August, September offers a more pleasant climate, though the lingering humidity can make the air feel heavier. Frequent rain showers add a touch of unpredictability, with about 9 days of precipitation contributing to an overall total of 41 mm during the month. This unique blend of warmth and moisture sets the stage for the vibrant colors and cooler breezes that autumn is known for. For a deeper understanding of weather patterns, check out Us Climate.