September Weather in Aix-en-Provence, France

Last updated: February 26, 2025

In September, Aix-en-Provence experiences a delightful blend of temperatures, making it an attractive destination for visitors. With maximums reaching 32°C (90°F) and an average of 20°C (68°F), the days are warm and inviting, while evenings offer a refreshing coolness, dropping to a minimum of 6°C (44°F). This month also sees moderate rainfall with a total of 44 mm (1.7 in) spread over 6 days, complemented by a humidity level of 71%, creating a pleasant atmosphere. Embrace the charm of Aix-en-Provence as it transitions into autumn, offering a perfect backdrop for exploration and relaxation.

September Temperature in Aix-en-Provence

In Aix-en-Provence, September marks a delightful transition into early autumn, offering delightful weather for both locals and visitors. The temperatures start to cool down slightly, with minimums around 6°C (44°F) and averages of 20°C (68°F), providing a comfortable backdrop for exploring the city’s charming streets and historic sites. The maximums can still reach up to 32°C (90°F), reminiscent of summer, making it a perfect time for enjoying the outdoor cafés and vibrant markets. As summer’s heat recedes, the consistently pleasant conditions create an inviting atmosphere, epitomizing the beauty of Provence in this enchanting month.

September Weather in Aix-en-Provence: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Aix-en-Provence, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec434750556372767668605145
Data source: Temperature data for Aix-en-Provence 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 Aix-en-Provence

In September, Aix-en-Provence experiences a moderate increase in precipitation, with 44 mm (1.7 in) of rain recorded over 6 days. This follows the typically drier summer months of July and August, where rainfall was significantly lower at 14 mm and 25 mm respectively. As the autumn season approaches, this uptick hints at a shift in weather patterns, paving the way for the wetter months ahead. October, for instance, is marked by a steep rise to 90 mm (3.6 in) as the city prepares for the rainier season. The gradual increase in precipitation from late summer into fall not only refreshes the landscape but also sets the stage for vibrant autumnal changes in the region.

September Precipitation Trends in Aix-en-Provence

The chart displays monthly precipitation patterns in Aix-en-Provence, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4038527479361425449011075
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Aix-en-Provence

In September, Aix-en-Provence experiences a refreshing shift in humidity, with levels averaging around 71%. This slight increase from the summer months, where humidity dipped to a comfortable low of 66% in August, heralds the arrival of fall. The trend throughout the months reveals a gradual ebb and flow of moisture in the air, with the highest levels observed in January at 80% and November peaking at 82%. As the region transitions into autumn, September's humidity provides a pleasant balance, gently bridging the dry warmth of summer and the cooler, damper conditions that follow. This makes for an inviting atmosphere as the landscape shifts to embrace the vibrant colors of fall.

September Average Humidity in Aix-en-Provence

This chart illustrates the average monthly humidity levels in Aix-en-Provence, 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.
JanFebMarAprMayJunJulAugSepOctNovDec80%74%71%75%74%72%69%66%71%78%82%79%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Aix-en-Provence

In September, Aix-en-Provence experiences a notable shift in sun exposure, with a UV Index of 7, categorizing it as high risk. This marks a gradual decline from the intense conditions of summer, where the UV Index peaked at 10 in June and held steady at 9 during July and August. As the month progresses, locals and visitors alike can expect a burn time of just 25 minutes before sun protection becomes essential. This transition foreshadows milder UV levels in October, when the UV Index drops to 5, indicating a return to moderate exposure. For those planning outdoor activities, it’s essential to remain mindful of the sun's intensity. Stay informed and protected by checking the forecast regularly at Aix-en-Provence UV Index.

Maximum UV Index Levels in Aix-en-Provence for September

The chart shows the monthly maximum UV Index (UVI) for Aix-en-Provence 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.
JanFebMarAprMayJunJulAugSepOctNovDec2467910997532
Data source: Aix-en-Provence 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 Aix-en-Provence

As summer gracefully transitions into autumn, September in Aix-en-Provence boasts a delightful 344 hours of sunshine, a radiant reminder of the season's charm. This month captures the tail end of the sun-soaked days, following July and June, which enjoy the highest sun exposure with 438 and 424 hours, respectively. While September's sunny hours are notably lower than those of the peak summer months, they still shine brightly against the cooler backdrop of autumn. This gentle decline marks the beginning of cozy evenings and picturesque landscapes, making it a perfect time for leisurely strolls through the city's vibrant streets, where the lingering warmth of summer meets the crispness of fall.

Monthly Sunshine Duration in Aix-en-Provence: September Highlighted

The September sunshine duration represents the total number of hours Aix-en-Provence 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.
JanFebMarAprMayJunJulAugSepOctNovDec193h258h328h349h403h424h438h404h344h309h250h245h
Data source: Aix-en-Provence September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Aix-en-Provence During September

September in Aix-en-Provence offers a moderate chance of sunny weather, with a 49% likelihood of sunshine. This marks a slight dip from the sun-soaked heights of August, which boasts a 73% chance, yet remains more favorable than the earlier months, like April and May, which hover around the 50% mark. Overall, as summer transitions into fall, the weather still holds promise for pleasant days, although it’s wise to be prepared for a few clouds. With a consistent sunshine trend peaking in the summer months, September provides a lovely balance—ideal for enjoying the lingering warmth and vibrant landscapes.

Percentage of Sunny Days in September in Aix-en-Provence

The chart illustrates the percentage of sunny days in Aix-en-Provence 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 Aix-en-Provence experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec43%43%61%52%47%57%63%73%49%57%51%54%
Data source: Aix-en-Provence September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Aix-en-Provence in September

As summer gracefully transitions into autumn, Aix-en-Provence experiences a delightful shift in daylight duration during September. With 12 hours of daylight, the month marks a subtle decline from the sun-drenched days of July and August, which basked in 15 and 13 hours, respectively. This smooth tapering hints at the impending shorter days of autumn, after reaching a peak in June. The gradual reduction in sunlight echoes an approaching seasonal change, while still offering plenty of bright moments to relish before the year gently slips into its twilight months. As daylight wanes, the rich hues of fall begin to emerge, illuminating the charm of this picturesque Provencal city.

Average Daylight Hours in Aix-en-Provence for September

The chart illustrates the variation in daylight duration in Aix-en-Provence throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 20m10h 29m11h 57m13h 26m14h 42m15h 21m15h13h 53m12h 27m10h 58m9h 39m8h 59m
Data source: Aix-en-Provence daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Aix-en-Provence

As the vibrant summer days transition into the quieter tones of autumn, September in Aix-en-Provence is marked by a gentle lull in the wind, with an average speed of just 2.8 m/s (6 mph). This dip reflects a distinct trend where wind speeds generally peak in the spring and early summer, notably reaching 3.8 m/s (9 mph) in May, before gradually tapering off through the fall. Compared to the gustier months of July and August, September’s softer breezes create a serene atmosphere, perfect for leisurely strolls through the charming streets of this Provençal gem. As the year progresses towards October, the winds remain mild, reflecting the calming embrace of early autumn in a region renowned for its beauty.

Average September Wind Speed in Aix-en-Provence

The chart displays monthly wind speed patterns in Aix-en-Provence, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3.83.53.13.03.83.03.43.22.8 m/s3.13.13.1
Data source: Aix-en-Provence September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Aix-en-Provence Compares to Other Months

The weather in Aix-en-Provence 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 Aix-en-Provence and find detailed weather information for every month.

In September, the weather tends to be much warmer, with average temperatures around 20°C (68°F) and highs reaching up to 32°C (90°F), making it a pleasant time for outdoor activities. The month sees a moderate amount of rainfall at 44 mm (1.7 in) over 6 days, accompanied by a humidity level of 71%. In contrast, January brings much cooler conditions, with average temperatures dropping to 6°C (43°F) and maximums around 17°C (63°F). Although precipitation levels are slightly lower at 40 mm (1.6 in) over the same number of days, the humidity rises to 80%, contributing to a crisp, chilly atmosphere. For more detailed weather information, you can check Aix-en-Provence weather in January.

September and February present stark contrasts in weather. September boasts a comfortable average temperature of 20°C (68°F), with highs reaching up to 32°C (90°F), while February experiences a much cooler average of 8°C (47°F), with minimum temperatures dipping to -6°C (22°F). Both months receive similar amounts of precipitation, around 44 mm (1.7 in) for September and 38 mm (1.5 in) for February, with each month seeing rain on about six days. Humidity levels are relatively close, at 71% in September and 73% in February, but the overall feel of the two months is quite different. For more details on February weather, check out Aix-en-Provence weather in February.

When comparing the weather in September and March, notable differences emerge in temperature and precipitation. September boasts a milder climate with average highs reaching 20°C (68°F) to a warm maximum of 32°C (90°F), while March starts much cooler, with average temperatures peaking at 22°C (72°F) but often dipping as low as -3°C (27°F). Additionally, September experiences less rainfall, with about 44 mm (1.7 in) over approximately six days, whereas March tends to be wetter, accumulating 52 mm (2.1 in) across seven days. Interestingly, both months share a humidity level of 71%, contributing to a similar feel despite the stark temperature variations. For more details on what to expect, check Aix-en-Provence weather in March.

In comparing the weather between September and April, September generally offers warmer temperatures, with an average of 20°C (68°F) and maximums reaching up to 32°C (90°F). In contrast, April sees lower temperatures, averaging around 13°C (56°F), with highs of 27°C (80°F). While September experiences less precipitation, totaling 44 mm (1.7 in) over about 6 days, April tends to be wetter, with 74 mm (2.9 in) falling over 9 days. Humidity levels are quite similar, with September at 71% and April slightly higher at 75%. For more detailed information about the weather during April, you can check Aix-en-Provence weather in April.

When comparing the weather in September and May, we see that both months feature similar maximum temperatures of 32°C (90°F), but September tends to be warmer overall with an average temperature of 20°C (68°F) compared to May's 17°C (63°F). September also experiences less precipitation, averaging 44 mm (1.7 in) over 6 days, while May is wetter with 79 mm (3.1 in) spread over 11 days. Humidity levels are slightly lower in September at 71%, compared to May's 74%. For a more detailed look at May's weather, you can check out Aix-en-Provence weather in May.

When comparing the weather in September and June, we see that June typically has warmer temperatures, with an average of 22°C (72°F) and a maximum of up to 38°C (100°F), while September's average is slightly cooler at 20°C (68°F) with a max of 32°C (90°F). The minimum temperatures also reflect this trend, with June starting at 10°C (51°F) compared to September's 6°C (44°F). Despite June having a marginally lower precipitation level at 36 mm (1.4 in) over 5 days, both months experience similar humidity levels, hovering around 71-72%. For more detailed insights into June weather, check out Aix-en-Provence weather in June.

When comparing the weather in September and July, it's clear that July tends to be warmer overall. In July, temperatures range from a minimum of 14°C (57°F) to a maximum of 35°C (95°F), with an average of 25°C (77°F). In contrast, September sees milder temperatures, featuring a minimum of 6°C (44°F) and a maximum of 32°C (90°F), with an average temperature of 20°C (68°F). Additionally, July experiences significantly less rainfall, with only 14 mm (0.6 in) over 3 days, while September has higher precipitation levels at 44 mm (1.7 in) across 6 days, contributing to a slightly higher humidity of 71%. For more details on the warm July weather, check out Aix-en-Provence weather in July.

In comparing the weather of September and August, September features a broader temperature range with minimums dropping to 6°C (44°F) and maximums reaching 32°C (90°F), while August experiences consistently warmer temperatures, with minimums at 12°C (53°F) and highs peaking at 37°C (98°F). August is also characterized by lower precipitation, with only 25 mm (1.0 in) falling over just 3 days, compared to September's 44 mm (1.7 in) spread over 6 days, indicating a more humid atmosphere in September at 71% compared to August’s 66%. For those interested in more detailed information, you can explore Aix-en-Provence weather in August.

September weather typically features warmer temperatures, with daily averages around 20°C (68°F) and highs reaching up to 32°C (90°F). In contrast, October sees a notable drop, with average temperatures falling to 16°C (60°F) and maximums of 26°C (80°F). Additionally, October experiences increased precipitation, totaling 90 mm (3.6 in) over about 7 days, compared to September's 44 mm (1.7 in) across 6 days. This change also brings along a rise in humidity levels, from 71% in September to 78% in October. For more detailed insights, you can explore Aix-en-Provence weather in October.

September typically boasts warmer temperatures, with average highs reaching up to 32°C (90°F) and a sunny disposition, while November ushers in cooler weather, with average highs dropping to around 20°C (68°F). The shift is quite notable, as November experiences a considerable increase in precipitation, totaling 110 mm (4.3 in) over 11 days, compared to September's 44 mm (1.7 in) over just 6 days. Furthermore, humidity levels rise in November, averaging 82%, compared to September's 71%. For a detailed look at November's weather patterns, you can explore this link: Aix-en-Provence weather in November.

September and December present striking contrasts in weather conditions. In September, temperatures are much warmer, ranging from a minimum of 6°C (44°F) to a pleasant average of 20°C (68°F), with highs reaching up to 32°C (90°F). The month experiences relatively low precipitation, with only 44 mm (1.7 in) over 6 days and humidity at 71%. In contrast, December features a cooler climate, with minimum temperatures dropping to -5°C (24°F) and an average of 7°C (45°F), peaking at 19°C (66°F). Precipitation increases to 75 mm (2.9 in) and occurs on 8 days, accompanied by a higher humidity level of 79%. For more detailed insights on December's weather, visit Aix-en-Provence weather in December.

Compare Aix-en-Provence's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Aix-en-Provence

As summer gently fades into autumn, September in Aix-en-Provence offers a delightful transition with pleasantly warm temperatures averaging around 20°C. Unlike the sweltering heat of July and August, the days are marked by a comfortable warmth, reaching a maximum of 32°C, while cooler evenings drop to 6°C. Rainfall is minimal, with only about six days experiencing light showers, contributing to a mild humidity level of 71%. This blend of sunshine and occasional rain makes for a picturesque setting, perfect for enjoying the vibrant landscapes and rich cultural experiences that Aix-en-Provence has to offer. For a deeper understanding of how September stands out in the region’s climate, explore Aix-en-Provence Climate.