Last updated: March 24, 2025
In September, Palermo, Italy, experiences a delightful blend of warmth and occasional rain. The maximum temperature reaches a balmy 31°C (88°F), with an average of 24°C (76°F), making it a perfect month for outdoor activities. Nights cool down to a comfortable minimum of 18°C (65°F). However, travelers should be aware of the 59 mm (2.3 in) of rainfall spread over 9 days, contributing to a humidity level of 69%. This ideal weather presents an enchanting backdrop for exploring the rich culture and vibrant life of this historic city.
In September, Palermo experiences a delightful transition as summer begins to wane. With temperatures ranging from a comfortable 18°C (65°F) at night to a warm 31°C (88°F) during the day, the city enjoys a pleasantly mild climate, perfect for outdoor adventures. The average temperature settles at around 24°C (76°F), allowing visitors to relish both sun-soaked days and cooler evenings. This month marks a shift from the peak heat of August, yet still retains the warmth that makes Sicily an enchanting destination. As the month progresses, those lingering summer vibes gradually give way to the gentler embrace of autumn, making September an ideal time to explore Palermo's rich history and vibrant culture.
September marks a transition in Palermo's climate, as the city experiences an increase in precipitation, with a total of 59 mm (2.3 in) over approximately 9 days of rain. This uptick follows the drier summer months, particularly July and June, where rainfall dipped to 7 mm (0.3 in) and 15 mm (0.6 in), respectively. The arrival of autumn brings with it heavier showers, paving the way for a wetter October, which typically sees 91 mm (3.6 in). As the humidity rises and temperatures gradually cool, September becomes a pivotal month, signaling the shift in weather patterns while providing much-needed moisture to the region. Overall, these trends highlight how Palermo transitions from the arid summer to the more balanced climate of early autumn, setting the stage for a richer, greener landscape ahead.
In September, Palermo experiences a moderate humidity level of 69%, marking a subtle transition as summer begins to wane. This slight increase from August's 64% indicates the onset of autumn, yet the air remains relatively comfortable compared to the more humid months of winter, where levels soar into the upper seventies. The data suggests a general trend of decreasing humidity from the peak summer months, which can enhance the city’s allure for visitors seeking to enjoy its historical and culinary delights. As the temperatures gradually cool down in October, the humidity inches back up to 73%, promising a refreshing change in the Mediterranean air.
In September, Palermo experiences a UV Index of 8, placing it in the very high exposure category. As summer transitions to autumn, the index remains elevated, though slightly lower than the peak months of July and August, both of which also recorded a UV Index of 10. With a burn time of only 15 minutes, it's crucial to take precautions against harmful rays during this time. This pattern of high UV levels from late spring through early fall highlights the importance of sun safety in Palermo year-round. For more detailed insights on UV levels in the city, visit Palermo UV Index.
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As summer gracefully transitions into autumn, September in Palermo, Italy, continues to bask in ample sunshine with 338 hours of golden rays. This month reflects a shift from the peak July sunshine of 422 hours, yet it retains a warm glow as it approaches the cooler October days with 318 hours of light. September's hours showcase a lingering warmth, inviting both locals and visitors to relish in outdoor activities and stunning coastal views. As the days grow shorter, the sun's embrace remains a cherished highlight, offering a delightful blend of summer's warmth and autumn's crispness, making Palermo a vibrant destination this time of year.
September in Palermo, Italy, brings a promising chance of sunshine, with a 59% likelihood of clear skies. This favorable weather follows an impressive summer, where July and August bask in the sun with a remarkable 90% chance of sunny days. As the city transitions from summer to autumn, September remains a sweet spot for sun-seekers, maintaining optimism amidst the gradual decline in sunlight that characterizes the upcoming months, such as October's 40% chance. Overall, September presents a delightful opportunity to enjoy Palermo's picturesque landscapes under the sun before the cooler season sets in.
As summer transitions to fall in Palermo, Italy, September offers a delightful balance of daylight, with 12 hours illuminating the city each day. This marks a gradual decline from the 14 hours enjoyed in the peak summer months of June, July, and August. The shift in daylight is part of a clear trend, where longer days in spring and summer gradually taper off as autumn approaches. After a vibrant summer filled with sunshine, the softening light of September serves as a gentle reminder of the changing seasons, leading into October's shorter days, where daylight dips back to 11 hours.
As September settles over Palermo, the wind begins to transition from the languid breezes of summer, registering an average speed of 3.0 m/s (7 mph). This gentle airflow, while slightly less than August, hints at the encroaching chill of autumn. Observing the year's wind patterns, it’s clear that the winds are generally understated during the peak summer months, with speeds gradually ramping up from October onwards, peaking in winter. This gradual increase reveals the comforting embrace of warm breezes giving way to the refreshing currents that accompany the onset of fall, making September a delightful time to experience Palermo’s iconic coastal charm.
The weather in Palermo 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 Palermo and find detailed weather information for every month.
September and January offer distinctly different weather experiences. In September, temperatures range from a minimum of 18°C (65°F) to a maximum of 31°C (88°F), making it a warm month with an average of 24°C (76°F) and a moderate humidity of 69%. Rainfall occurs on about 9 days, totaling 59 mm (2.3 in). In contrast, January experiences much cooler temperatures, with a minimum of 4°C (39°F) and a maximum of 20°C (68°F), resulting in an average of 12°C (54°F). Although January has slightly less precipitation, at 49 mm (1.9 in) over about 10 days, it tends to have higher humidity at 78%. For more detailed insights, you can visit Palermo weather in January.
September and February showcase stark contrasts in weather. September enjoys warmer temperatures, with averages ranging from 18°C (65°F) to 31°C (88°F), making it a pleasantly warm month for outdoor activities. In contrast, February experiences cooler temperatures, with a range of 6°C (43°F) to 21°C (69°F), ideal for those who prefer milder conditions. Both months have similar levels of precipitation, with September recording 59 mm over 9 days and February slightly higher at 60 mm over 8 days; however, February tends to have higher humidity at 72% compared to September's 69%. For more details on February weather, you can visit Palermo weather in February.
In comparing the weather of September and March, it's clear that these months present quite different climates. September typically enjoys warmer temperatures, with a minimum of 18°C (65°F) and an average of 24°C (76°F), while March starts off cooler, with a minimum of only 8°C (46°F) and an average of 13°C (56°F).
Additionally, the maximum temperature in September reaches up to 31°C (88°F), providing a much warmer feel than March's high of 22°C (72°F). Precipitation also varies slightly; September experiences 59 mm (2.3 in) of rain over 9 days, whereas March sees more rainfall at 80 mm (3.1 in) across 11 days. Humidity levels are similar, hovering around 69% in September and 70% in March. For a detailed look at spring weather, you can check out Palermo weather in March.
September and April present distinct differences in weather. September boasts warmer temperatures, with averages ranging from a minimum of 18°C (65°F) to a maximum of 31°C (88°F), making it significantly warmer than April, which sees temperatures ranging from 9°C (49°F) to a maximum of 22°C (73°F). Additionally, September experiences more precipitation, with about 59 mm (2.3 in) falling over 9 days, compared to April’s 34 mm (1.3 in) over just 7 days. While September has a slightly lower humidity level at 69%, April is notably more humid at 73%. For more details on September weather, you can check Palermo weather in April.
September and May offer distinct weather experiences. In September, temperatures range from a minimum of 18°C (65°F) to a maximum of 31°C (88°F), with an average of 24°C (76°F), while May sees cooler temperatures, with minimums around 12°C (54°F) and maximums peaking at 32°C (90°F), averaging 18°C (65°F). The humidity is slightly higher in May at 73%, compared to September’s 69%. Additionally, September experiences more rainfall, with 59 mm (2.3 in) over 9 days, whereas May has less precipitation at 32 mm (1.3 in) over 6 days. For more details, check out Palermo weather in May.
In comparing the weather of September and June, September tends to be slightly warmer with an average temperature of 24°C (76°F) compared to June's 23°C (73°F). However, June exhibits a higher maximum temperature of 33°C (91°F) compared to September’s 31°C (88°F). Additionally, September experiences more precipitation, with 59 mm (2.3 in) over 9 days, while June is relatively dry, recording only 15 mm (0.6 in) over just 2 days. Humidity levels are quite similar in both months, with September at 69% and June at 68%. For a detailed look at June weather, you can refer to Palermo weather in June.
In comparing the weather between September and July, September showcases a slightly cooler climate, with average temperatures ranging from a minimum of 18°C (65°F) to a maximum of 31°C (88°F). In contrast, July tends to be warmer, with temperatures starting from a minimum of 21°C (69°F) and peaking at 32°C (91°F). Additionally, September experiences more precipitation, averaging 59 mm (2.3 in) over 9 days, while July is much drier, receiving only 7 mm (0.3 in) over just 1 day. Humidity levels are relatively similar in both months, with September at 69% and July at 66%. For more details, you can check out Palermo weather in July.
In comparing the weather of September to that of August, we see some notable differences. September experiences slightly cooler temperatures, with average highs of 31°C (88°F) compared to August's warmer 33°C (93°F). Additionally, September's minimum temperature of 18°C (65°F) is lower than August's minimum of 21°C (70°F). Precipitation also increases in September, with 59 mm (2.3 inches) over 9 days, while August only sees 24 mm (1.0 inch) across 3 days. Interestingly, September has a higher humidity level at 69%, compared to August’s 64%. For more details about weather conditions during this month, you can check Palermo weather in August.
September and October exhibit notable contrasts in weather patterns. While September enjoys warmer temperatures with a minimum of 18°C (65°F) and an average of 24°C (76°F), October sees a slight drop with a minimum of 15°C (60°F) and an average of 20°C (69°F). Precipitation also increases in October, rising to 91 mm (3.6 in) over 13 days, compared to September's 59 mm (2.3 in) over 9 days. Furthermore, humidity levels are slightly higher in October at 73%, up from 69% in September. For more detailed information, you can check Palermo weather in October.
September and November present quite different weather experiences. In September, temperatures are typically warmer, with average highs reaching 31°C (88°F) and lows around 18°C (65°F), resulting in a comfortable yet humid atmosphere at 69%. The month sees moderate rainfall, with approximately 59 mm (2.3 in) over about 9 days. In contrast, November brings cooler temperatures, with daily averages hovering around 17°C (63°F) and maximums only reaching 23°C (74°F). Precipitation increases to 94 mm (3.7 in) across 12 days, and humidity rises slightly to 76%. For those looking to learn more about the weather specifics in November, you can check this link: Palermo weather in November.
In September, the weather tends to be warm and fairly humid, with temperatures ranging from a minimum of 18°C (65°F) to a maximum of 31°C (88°F), averaging around 24°C (76°F). Rainfall is relatively low, with 59 mm (2.3 in) of precipitation spread over 9 days, resulting in a comfortable ambiance for outdoor activities. In contrast, December brings cooler temperatures, averaging 14°C (57°F), with highs reaching only 20°C (67°F) and lows dropping to 9°C (48°F). This month also experiences increased rainfall, totaling 94 mm (3.7 in) over 13 days, alongside higher humidity levels at 77%. For more detailed insights, you can check out Palermo weather in December.
As summer gracefully transitions into autumn, September in Palermo offers a delightful shift in weather compared to the sweltering peak months of July and August. With temperatures averaging a comfortable 24°C (76°F) and pleasant maximums reaching 31°C (88°F), outdoor activities remain enjoyable without the oppressive heat. However, this month does see an uptick in precipitation, with occasional showers bringing refreshing relief from the humidity that hovers around 69%. As the days gradually shorten, September invites visitors to experience Palermo's vibrant culture amidst more temperate conditions. For an in-depth look at the weather patterns throughout the year, explore Palermo Climate.