Last updated: February 26, 2025
In September, Noirmoutier-en-l'Ile enjoys a delightful transition into autumn, with temperatures ranging from a pleasant 11°C (52°F) at night to a summery peak of 28°C (82°F) during the day. The average temperature settles comfortably at 18°C (64°F), providing an inviting climate for outdoor exploration. While the island experiences approximately 42 mm (1.6 in) of rain over about 8 days, the humidity levels hover around 75%, creating a refreshing atmosphere. This balance of warmth and moisture makes September an enchanting time to visit Noirmoutier-en-l'Ile, inviting travelers to bask in its natural beauty amid shifting seasons.
In September, Noirmoutier-en-l'Ile boasts a delightful transition into early autumn, characterized by mild temperatures that invite exploration. With minimums around 11°C (52°F), averages of 18°C (64°F), and maximums reaching up to 28°C (82°F), the weather remains pleasantly warm, making it ideal for outdoor activities. This month marks a gradual cooling trend from the summer's peak, yet still retains a hint of warmth, providing visitors with brilliant opportunities to soak in the beauty of the island before the chill of fall settles in. Whether basking in the sun or enjoying the gentle sea breeze, September in Noirmoutier-en-l'Ile is a charming time to experience the region’s scenic allure.
In September, Noirmoutier-en-l'Ile experiences a moderate level of precipitation, totaling 42 mm (1.6 in) over 8 days. This amount is slightly higher than the drier summer months, reflecting a shift towards the wetter autumn season. As summer fades, the rainfall begins to pick up, paving the way for the heavier showers that characterize October and November. While September marks the end of the warm, dry trends seen during July and August, it also hints at the forthcoming increase in precipitation, leading into the typically rainier months ahead. Overall, it sets a transitional tone, blending the lingering warmth of summer with the fresh, rejuvenating rains of fall.
As September rolls in, Noirmoutier-en-l'Ile experiences a subtle shift in humidity, settling at 75%. This marks a slight increase from the drier summer months of July and August, which recorded 65% and 67% respectively. The warmth of September retains some of the summer's residual moisture, striking a balance before the autumnal drop in humidity. Following this, the levels rise again, reaching 85% in October, indicative of the island's transition to a more humid climate as it heads deeper into autumn. Overall, September serves as a gentle pivot, bridging the drier mid-year months and the more humid fall season.
As September arrives in Noirmoutier-en-l'Ile, the UV Index shows a significant drop to 6, indicating a high exposure category, a shift from the intense levels experienced during the summer months. With a burn time of 25 minutes, sun seekers should still exercise caution as the sun's rays remain powerful. This trend reflects a gradual decrease from the very high indexes of July and August, where burn times plummeted to just 15 minutes. As the month transitions into autumn, it’s essential to stay informed and protect yourself from UV radiation. For more detailed information, check out the Noirmoutier-en-l'Ile UV Index.
UV Risk Categories
As summer wanes and September settles in Noirmoutier-en-l'Ile, the island basks in a remarkable 337 hours of sunshine—a delightful balance between the vibrant summer months and the approaching fall. This month beautifully contrasts with the peak of July, which boasts 428 hours of golden rays, while still offering a generous retreat from the hotter days. Visitors can relish the warmth of early autumn, enjoying beaches and outdoor cafés with fewer crowds, and experiencing a serene transition as the sunshine hours gradually shift, paving the way for October’s 283 hours. September invites you to soak up the lingering warmth and savor nature’s beauty, making it a perfect time to explore this enchanting island.
As summer transitions into autumn, Noirmoutier-en-l'Ile enjoys a commendable 53% chance of sunny weather in September, aligning closely with the slightly sunnier months of July and August. This marks a significant increase from the chilly, overcast days of winter, where the chance of sunshine hovers around 22% in January. Interestingly, while May's 40% chance signals the lingering spring showers, September holds steady with a warmth and brightness reminiscent of the peak summer months. This trend illustrates a delightful balance where early autumn still offers plenty of opportunities to bask in the sun before the cooler days of October set in, making Noirmoutier-en-l'Ile an attractive destination for those chasing the last rays of summer.
As summer gracefully gives way to autumn, September in Noirmoutier-en-l'Ile brings a delightful shift in daylight, offering about 12 hours of sunlight. This marks a gentle decline from the peak of 15 hours in the summer months of June, July, and August, highlighting the island's transition from the long, sun-soaked days. The days are still relatively long compared to the winter months, but the gradual shortening foreshadows the upcoming colder seasons. With the vibrant hues of early autumn, September is a perfect time to enjoy the lingering warmth before the daylight dwindles further into October's 10 hours.
As summer gives way to autumn, September in Noirmoutier-en-l'Ile, France, is marked by a gentle transition in its wind patterns. With an average wind speed of 4.7 m/s (11 mph), September tends to be the calmest month of the year, following the slightly breezier summer months of July and August. The winds gradually decrease from the stronger currents of earlier seasons, notably peaking at 6.6 m/s (15 mph) in both February and May. This month's softer breezes create a serene atmosphere, perfect for leisurely strolls along the picturesque coastline or indulging in the vibrant local flora. As October approaches, wind speeds begin to climb again, hinting at the seasonal shifts to come, yet September remains a special moment of tranquil beauty on the island.
The weather in Noirmoutier-en-l'Ile 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 Noirmoutier-en-l'Ile and find detailed weather information for every month.
When comparing the weather of September and January, it's clear that the two months present stark contrasts. September enjoys milder temperatures, ranging from a minimum of 11°C (52°F) to a maximum of 28°C (82°F), with an average of 18°C (64°F). In this month, precipitation is relatively moderate at 42 mm (1.6 in) over approximately 8 days, and the humidity sits at a comfortable 75%.
In contrast, January experiences much colder weather, with temperatures dropping to a minimum of -2°C (28°F) and an average of only 8°C (46°F). The highest temperatures reach just 14°C (57°F). This month also sees increased precipitation at 60 mm (2.4 in) over 12 days and higher humidity levels at 88%. For more detailed insights, you can visit Noirmoutier-en-l'Ile weather in January.
September and February in Noirmoutier-en-l'Ile showcase contrasting weather patterns. In September, temperatures are notably warmer, with averages around 18°C (64°F) and highs reaching up to 28°C (82°F), while humidity sits at a moderate 75%. Precipitation is relatively low, with around 42 mm (1.6 in) spread over 8 days. In stark contrast, February experiences much colder conditions, with average temperatures dropping to 9°C (48°F) and highs of only 15°C (59°F). This month also sees increased precipitation, totaling 71 mm (2.8 in) over 13 days, and higher humidity levels at 87%. For more details on February's weather, you can visit Noirmoutier-en-l'Ile weather in February.
In comparing the weather of September and March, it’s clear that September typically offers milder temperatures, with a minimum of 11°C and an average of 18°C, peaking at a pleasant 28°C. In contrast, March is significantly cooler, featuring a minimum temperature of -4°C and an average of 10°C, with a maximum that just reaches 18°C. Both months experience precipitation, but March is wetter, accumulating 68 mm over 13 days compared to September's 42 mm over 8 days. Additionally, humidity levels are higher in March at 84%, compared to 75% in September. For more detailed information, you can check Noirmoutier-en-l'Ile weather in March.
In September, temperatures are generally warmer, with a minimum of 11°C (52°F), an average of 18°C (64°F), and a maximum of 28°C (82°F), compared to April's cooler range, which sees a minimum of 3°C (38°F), an average of 12°C (54°F), and a maximum of 22°C (73°F). Both months experience similar precipitation levels around 40-42 mm (1.6 in) and roughly 8 days of rain, but September is slightly drier with a humidity of 75%, while April has higher humidity at 83%. For a closer look at April weather specifics, you can visit Noirmoutier-en-l'Ile weather in April.
When comparing the weather in September and May, September generally offers warmer temperatures with a minimum of 11°C (52°F) and an average of 18°C (64°F), reaching a maximum of 28°C (82°F). In contrast, May sees cooler conditions, with temperatures starting at a minimum of 7°C (45°F) and averaging around 15°C (59°F), peaking at 25°C (77°F). Precipitation levels are slightly higher in May at 55 mm (2.2 in) over 10 days, compared to 42 mm (1.6 in) over 8 days in September. Additionally, May tends to have a higher humidity level of 81%, compared to September's 75%. For further details, you can check Noirmoutier-en-l'Ile weather in May.
When comparing the weather in September and June, we can see some notable differences. September enjoys mild temperatures with a minimum of 11°C (52°F), an average of 18°C (64°F), and a maximum of 28°C (82°F), while June tends to be a bit warmer, with similar minimum temperatures but an average of 18°C (64°F) and a higher maximum of 31°C (87°F). Precipitation is slightly higher in June, measuring 65 mm (2.5 in) over approximately 10 days, compared to September’s 42 mm (1.6 in) over 8 days. Interestingly, humidity levels remain constant at 75% for both months, making for a consistently humid atmosphere. For more details on the June climate, visit Noirmoutier-en-l'Ile weather in June.
When comparing the weather in September to that of July, September tends to be slightly cooler, with average temperatures ranging from a minimum of 11°C (52°F) to a maximum of 28°C (82°F), whereas July features temperatures from 13°C (56°F) to 31°C (87°F). Additionally, September experiences a bit more rainfall, averaging 42 mm (1.6 in) over 8 days compared to July's 35 mm (1.4 in) over 7 days. There's also a notable difference in humidity, with September being more humid at 75% compared to July's 65%. For a closer look at the July weather, you can find more details here: Noirmoutier-en-l'Ile weather in July.
In comparing the weather between August and September, we see a slight decrease in temperatures as September's average temperature is 18°C (64°F), compared to August's 19°C (67°F). The minimum temperature in September dips to 11°C (52°F), while August starts at a warmer 13°C (56°F). Both months experience similar levels of precipitation, with September recording 42 mm (1.6 in) and August slightly higher at 44 mm (1.7 in), though both saw rain on about 8 days. A notable difference is the increase in humidity in September to 75%, up from 67% in August, giving September a more humid feel. For more detailed insights into August weather, you can visit Noirmoutier-en-l'Ile weather in August.
September and October present a noticeable change in weather patterns. In September, temperatures range from a mild minimum of 11°C (52°F) to a comfortable maximum of 28°C (82°F), with an average of 18°C (64°F). The month sees relatively low precipitation at 42 mm (1.6 in) spread over 8 days and a humidity level of 75%. In contrast, October experiences a drop in temperatures, with a minimum of 5°C (42°F) and a maximum of 21°C (70°F), resulting in an average of 15°C (59°F). The month is wetter, with 85 mm (3.4 in) of precipitation occurring over 11 days and humidity rising to 85%. For more detailed insights, check out Noirmoutier-en-l'Ile weather in October.
In September, the weather is generally milder, with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 28°C (82°F) and an average of 18°C (64°F). Precipitation is relatively low at 42 mm (1.6 in), falling over about eight days, and the humidity levels are moderate at 75%. In contrast, November brings significantly cooler temperatures, with a minimum of 3°C (38°F) and a maximum of 17°C (64°F), averaging around 11°C (52°F). The month is also wetter, receiving 90 mm (3.5 in) of rainfall over approximately 12 days, and higher humidity levels at 88%. For more details on the weather in November, you can check Noirmoutier-en-l'Ile weather in November.
In September, the weather is generally milder, with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 28°C (82°F), and an average of 18°C (64°F). The month sees moderate rainfall totaling 42 mm (1.6 in) over about 8 days, accompanied by a humidity of 75%. In contrast, December brings much cooler conditions, with temperatures dipping to a minimum of 2°C (35°F) and averaging 10°C (50°F), peaking at 14°C (58°F). Rainfall significantly increases to 124 mm (4.9 in) over 16 days, and humidity rises to 90%, making it feel much wetter and chillier. For a detailed look at the December weather, visit Noirmoutier-en-l'Ile weather in December.
As summer gives way to autumn, September in Noirmoutier-en-l'Ile offers a delightful transition marked by milder temperatures and decreasing humidity. While the warm days still linger, the evenings bring a crispness that hints at the changing season. Rainfall is modest, with occasional showers providing a refreshing contrast to the warmer days and painting a picturesque island backdrop. This blend of pleasant warmth and gentle precipitation makes September a unique time to explore the stunning landscapes and vibrant culture of Noirmoutier-en-l'Ile. For a deeper look at seasonal trends, visit Noirmoutier-en-l'Ile Climate.