September Weather in Ajaccio, France

Last updated: February 26, 2025

September in Ajaccio, France, offers a delightful transition from summer to autumn, with maximum temperatures reaching 26°C (79°F) and an average of 20°C (69°F). Visitors can enjoy comfortable weather as the minimum temperature hovers around 12°C (53°F). While the month sees light rain totaling 45 mm (1.8 in) over 8 days, the moderate humidity level of 68% adds a touch of freshness to the coastal air. This delightful climate makes September an ideal time to explore the stunning landscapes and vibrant culture of this picturesque Mediterranean city.

September Temperature in Ajaccio

In September, Ajaccio experiences a delightful transition into autumn, with temperatures that still reflect the warmth of summer. The month starts with a minimum of 12°C (53°F) and an average of 20°C (69°F), peaking at 26°C (79°F). This mild weather is ideal for enjoying outdoor activities and the stunning coastal views before the cooler months set in. Compared to the scorching highs of August, September offers a refreshing reprieve, making it a fantastic time to explore the charm of this French Mediterranean city while still basking in pleasant sunshine. As the days gradually shorten, the evenings become more inviting, providing the perfect ambiance for leisurely strolls along the waterfront.

September Weather in Ajaccio: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Ajaccio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec484951556169737569635650
Data source: Temperature data for Ajaccio generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Ajaccio

In September, Ajaccio experiences a moderate increase in precipitation, receiving 45 mm (1.8 in) over approximately 8 days. This marks a shift from the dry summer months of July and August, which saw only 21 mm and 20 mm respectively. As the region transitions into autumn, rainfall begins to rise, hinting at the wetter months ahead. Notably, September is characterized by a balance between sunshine and showers, as visitors can still enjoy pleasant weather while being prepared for the occasional rain. This trend sets the stage for the significant jumps in precipitation that follow in October and November, with averages of 90 mm and 154 mm, respectively, further highlighting the seasonal shift in Ajaccio’s climate.

September Precipitation Trends in Ajaccio

The chart displays monthly precipitation patterns in Ajaccio, with values for each month alongside September's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec94988265913921204590154179
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ajaccio

In September, Ajaccio experiences a humidity level of 68%, marking a slight increase from the drier summer months. Throughout the year, humidity in Ajaccio typically peaks in the winter, with January at 79%, and gradually declines to the lowest point in August at 66%. This gradual drop during the summer creates a more comfortable atmosphere for visitors, making September an appealing time to experience the city. As autumn sets in, humidity levels begin to rise again, signaling a return to the more humid conditions characteristic of the winter months ahead. Overall, the transition from summer to fall showcases a dynamic interplay of humidity, contributing to Ajaccio's unique Mediterranean climate.

September Average Humidity in Ajaccio

This chart illustrates the average monthly humidity levels in Ajaccio, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec79%72%70%74%72%70%69%66%68%75%78%76%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ajaccio

In September, Ajaccio experiences a UV Index of 8, categorized as very high, which indicates a continued need for sun protection as summer fades. This level signifies a consistent trend from the previous months, with August boasting a UV Index of 9 and July and June both peaking at 10. Despite the slight decrease in UV intensity from the summer peak, the burn time remains short at just 15 minutes, reinforcing the importance of vigilance against sun exposure. As the year transitions into autumn, visitors and locals alike should stay informed about the changing UV conditions in Ajaccio. For more detailed information, check out the Ajaccio UV Index.

Maximum UV Index Levels in Ajaccio for September

The chart shows the monthly maximum UV Index (UVI) for Ajaccio in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec34589101098642
Data source: Ajaccio September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Ajaccio

September in Ajaccio, France, captures the essence of summer's lingering warmth, offering a delightful 346 hours of sunshine. As the year progresses, one can observe a fascinating trend: the sunniest months peak in July, with a commendable 433 hours, creating a vibrant atmosphere perfect for beachgoers. However, even as the sun begins to set on summer, September maintains a robust brightness, outshining the earlier months of January through April. The gradual decline in sunshine hours through the autumn months, October and beyond, paints a picturesque transition toward winter, yet September holds onto the spirit of summer, inviting outdoor enthusiasts to bask in its charm just a little while longer.

Monthly Sunshine Duration in Ajaccio: September Highlighted

The September sunshine duration represents the total number of hours Ajaccio experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec204h267h335h358h404h420h433h401h346h318h258h249h
Data source: Ajaccio September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Ajaccio During September

In Ajaccio, France, September offers a refreshing transition from the sun-soaked summer months, with a 51% chance of sunny weather that strikes a balance between warmth and moderate rainfall. While July and August boast the highest probabilities of sunshine at 74% and 75% respectively, September's likelihood drops notably, aligning more closely with the averages seen in spring and early autumn. This month presents a delightful escape from the summer heat, allowing visitors to enjoy the lingering warmth with a reasonable chance of sunny days, making it an appealing choice for those looking to experience the beauty of the Mediterranean in a more relaxed setting. As the season shifts, September stands out as a unique blend of sunny charm and comfortable temperatures, perfect for exploring the vibrant landscapes and rich culture of Ajaccio.

Percentage of Sunny Days in September in Ajaccio

The chart illustrates the percentage of sunny days in Ajaccio throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Ajaccio experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec33%53%66%50%48%64%74%75%51%49%35%44%
Data source: Ajaccio September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Ajaccio in September

As September unfolds in Ajaccio, France, the daylight hours gracefully begin to decline from the summer peak of 15 hours in June. The month enjoys a generous 12 hours of daylight, reflecting a gentle transition from the sun-drenched days of summer to the cozy embrace of autumn. Following the vibrant fluctuations of earlier months, September stands as a bridge—still basking in the warmth of a Mediterranean summer while hinting at the cooler days ahead. This gradual descent in daylight not only marks the end of longer summer evenings but also invites locals and visitors alike to savor the last remnants of outdoor activities against the backdrop of turning leaves and refreshing breezes.

Average Daylight Hours in Ajaccio for September

The chart illustrates the variation in daylight duration in Ajaccio throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 29m10h 34m11h 57m13h 22m14h 34m15h 10m14h 51m13h 47m12h 26m11h 1m9h 47m9h 9m
Data source: Ajaccio daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Ajaccio

As September unfolds in Ajaccio, France, the coastal winds tend to mirror the tranquil summer vibes, maintaining a gentle breeze at an average speed of 2.4 m/s (5 mph). This pattern marks a continuation of the light winds seen in the preceding months of July and August, creating an inviting atmosphere for both locals and visitors. Notably, this calmness contrasts with the brisker winds typical of early autumn, as indicated by the slight uptick in wind speeds in October. Overall, September in Ajaccio encapsulates a serene transition from the sweltering summer, where the soft winds caress the shores, providing a perfect backdrop for leisurely strolls and seaside relaxation.

Average September Wind Speed in Ajaccio

The chart displays monthly wind speed patterns in Ajaccio, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.43.42.82.72.72.12.42.42.4 m/s2.83.23.4
Data source: Ajaccio September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Ajaccio Compares to Other Months

The weather in Ajaccio 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 Ajaccio and find detailed weather information for every month.

September weather typically presents milder and more pleasant conditions, with average temperatures ranging from a minimum of 12°C (53°F) to a maximum of 26°C (79°F). In contrast, January is significantly colder, with average temperatures between 2°C (36°F) and 15°C (59°F). Additionally, September experiences less precipitation, with about 45 mm (1.8 inches) over 8 days, compared to January's heavier rainfall of 94 mm (3.7 inches) over 12 days. The humidity in January is also higher at 79%, compared to 68% in September. For more details on January weather, you can visit this link: Ajaccio weather in January.

September and February present contrasting weather conditions. September enjoys mild temperatures with an average of 20°C (69°F) and maximums reaching 26°C (79°F), while February experiences much cooler weather, with averages around 10°C (50°F) and highs only up to 19°C (67°F). Precipitation is more frequent in February, totaling 98 mm (3.8 in) over approximately 10 days, compared to September's 45 mm (1.8 in) across 8 days. Additionally, humidity levels are slightly higher in February at 72%, compared to 68% in September. For a closer look at February conditions, visit Ajaccio weather in February.

When comparing the weather in September and March, a distinct contrast emerges. September tends to be milder with average temperatures around 20°C (69°F) and highs reaching up to 26°C (79°F), making it a pleasant month to enjoy outdoor activities. In contrast, March experiences cooler temperatures, with averages hovering around 10°C (51°F) and nighttime lows dipping to -1°C (31°F). Additionally, March sees more rainfall, accumulating about 82 mm (3.2 in) over 10 days compared to September's 45 mm (1.8 in) over 8 days, which contributes to a slightly higher humidity level of 70%. For a more detailed look at the weather patterns, you can visit Ajaccio weather in March.

When comparing the weather in September and April, notable differences emerge. September boasts milder temperatures with a minimum of 12°C (53°F) and an average of 20°C (69°F), reaching a maximum of 26°C (79°F). In contrast, April is considerably cooler, with temperatures ranging from a minimum of 2°C (35°F) to an average of 13°C (55°F) and a maximum of 19°C (66°F). Additionally, September experiences less precipitation at 45 mm (1.8 in) over 8 days, while April sees more rainfall, totaling 65 mm (2.6 in) across 10 days. Humidity levels are also higher in April at 74%, compared to September's 68%. For more detailed insights on April weather in Ajaccio, visit Ajaccio weather in April.

When comparing the weather in September and May, September tends to be warmer with an average temperature of 20°C (69°F), while May has a cooler average of 16°C (61°F). September features a broader temperature range, reaching highs of 26°C (79°F), whereas May's maximum temperature peaks at 25°C (78°F). Precipitation is notably higher in May, accumulating 91 mm (3.6 in) over 9 days compared to September's 45 mm (1.8 in) over 8 days. The humidity levels are slightly elevated in May at 72%, as opposed to September's 68%. For more details, check out Ajaccio weather in May.

When comparing the weather in September and June, we see some notable similarities and differences. Both months have an average temperature of around 20°C (69°F), but June tends to be slightly warmer with a maximum temperature of 28°C (83°F) compared to September's 26°C (79°F). In terms of precipitation, September receives a bit more rainfall, averaging 45 mm (1.8 in) over 8 days, while June experiences 39 mm (1.5 in) over just 6 days. Additionally, humidity levels are similar in both months, with September at 68% and June slightly higher at 70%. For those interested in a more detailed look at June weather specifically, you can visit Ajaccio weather in June.

In comparing the weather between September and July, we see notable differences. September tends to be cooler, with average temperatures ranging from a minimum of 12°C (53°F) to a maximum of 26°C (79°F), while July is warmer, featuring a range of 16°C (62°F) to 30°C (85°F). Additionally, September experiences more rainfall, with 45 mm (1.8 in) over 8 days compared to July's 21 mm (0.8 in) over just 4 days. The humidity levels are fairly consistent, hovering around 68% in September and 69% in July. For more details on July's weather, you can check out Ajaccio weather in July.

In comparing the weather of September and August, we see a notable shift towards cooler temperatures and increased precipitation. September experiences a minimum temperature of 12°C (53°F), averaging around 20°C (69°F), and reaching a maximum of 26°C (79°F). In contrast, August boasts warmer temperatures, with a minimum of 18°C (64°F), an average of 24°C (75°F), and a peak at 32°C (89°F). Additionally, September has higher rainfall, with 45 mm (1.8 in) over 8 days, compared to August's 20 mm (0.8 in) over just 5 days. Both months show similar humidity levels, but September's 68% slightly exceeds August's 66%. For more specific details, you can explore Ajaccio weather in August.

In September, the weather tends to be warmer, with average temperatures around 20°C (69°F) and maximums reaching up to 26°C (79°F). The month experiences moderate rainfall, totaling about 45 mm (1.8 in) over approximately 8 days and enjoys a humidity level of 68%.

In contrast, October sees a slight drop in temperature, with averages around 17°C (63°F) and daily maximums peaking at 25°C (77°F). However, the precipitation increases significantly to 90 mm (3.5 in), occurring on about 9 days, alongside a rise in humidity to 75%. These changes make October feel cooler and wetter compared to the more stable and warm conditions of September.

For more detailed insights, you can check Ajaccio weather in October.

September and November present quite contrasting weather patterns. In September, temperatures tend to be milder, with a range from a minimum of 12°C (53°F) to a maximum of 26°C (79°F), and an average of 20°C (69°F). The month experiences moderate precipitation of 45 mm (1.8 in) over about 8 days, along with a humidity level of 68%. In stark contrast, November sees cooler temperatures, with a minimum of 6°C (43°F) and a maximum of 19°C (66°F), averaging around 13°C (56°F). This month is notably wetter, receiving 154 mm (6.1 in) of rainfall over 17 days, coupled with increased humidity at 78%. For more detailed insights, you can check Ajaccio weather in November.

In September, the weather is generally mild, with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 26°C (79°F), and an average of 20°C (69°F). This month sees moderate rainfall, with about 45 mm (1.8 in) spread over 8 days, and humidity levels at 68%.

In contrast, December experiences much cooler temperatures, with a minimum of 4°C (40°F) and a maximum of only 16°C (61°F), resulting in an average of 10°C (51°F). The month is significantly wetter, with precipitation reaching 179 mm (7.1 in) over 18 days, and humidity increasing to 76%. For more details on December weather, visit Ajaccio weather in December.

Compare Ajaccio's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Ajaccio

As summer gently transitions into autumn, September in Ajaccio offers a delightful blend of mild temperatures and moderate humidity. With daytime highs lingering at a comfortable range, this month showcases pleasant weather ideal for exploring the city's stunning landscapes. Unlike the hotter summer months, September brings a slight increase in precipitation, making it one of the wetter times of the year, although still manageable with only about eight rainy days. This combination of warm days and refreshing evenings sets the stage for a unique experience, perfect for both relaxation and adventure. For a deeper dive into what the weather is like throughout the year, check out the full details at Ajaccio Climate.