September Weather in Acireale, Italy

Last updated: March 24, 2025

In September, Acireale, Italy embraces the transition from summer to autumn with mild and inviting weather. The maximum temperature reaches a warm 31°C (87°F), while the average settles comfortably at 25°C (77°F), allowing for pleasant outdoor activities. Nighttime brings cooler breezes with a minimum temperature of 19°C (67°F). Although the region experiences some precipitation—approximately 35 mm (1.4 in) over 7 days—the humidity level hovers around a moderate 73%, contributing to a refreshing atmosphere perfect for exploring this charming coastal town.

September Temperature in Acireale

In September, Acireale, Italy, experiences a delightful transition into autumn, showcasing pleasant temperatures that invite exploration. With minimums around 19°C (67°F) and average highs reaching 31°C (87°F), the weather is comfortably warm, yet not as sweltering as the peak summer months. This gradual cooling down from the summer's peak fosters an inviting atmosphere, perfect for outdoor activities and enjoying the town's rich cultural heritage. As the month progresses, temperatures dip slightly, but the average of 25°C (77°F) ensures plenty of sunny days remain, encouraging visitors to relish in the beautiful Sicilian landscapes and vibrant local life.

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

The chart illustrates September temperature patterns in Acireale, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec545556606674798177696457
Data source: Temperature data for Acireale 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 Acireale

September in Acireale marks a transition towards a wetter autumn, with a precipitation amount of 35 mm (1.4 in) falling over seven days. This increase from the parched summer months—where precipitation dwindled to just 6 mm (0.2 in) in August—signals the shift in seasons and prepares the region for October's significantly higher rainfall of 146 mm (5.8 in). As summer's dry spell fades, the revitalizing rains of September begin to nourish the landscape, foreshadowing the more frequent and heavier precipitation that will define the coming months. This pattern emphasizes the dynamic climate of Acireale, where the calm of summer quickly gives way to the refreshing rains of fall.

September Precipitation Trends in Acireale

The chart displays monthly precipitation patterns in Acireale, 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.
JanFebMarAprMayJunJulAugSepOctNovDec466061261218863514613135
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Acireale

As summer fades in Acireale, September brings a modest humidity level of 73%, slightly higher than the drier conditions of August at 70%. This gradual increase is part of a yearly trend where humidity peaks in the late spring and early summer before settling down during the fall months. Interestingly, September's humidity mirrors that of October, establishing a consistent pattern as the region transitions to milder autumn conditions. Overall, Acireale experiences relatively high humidity levels throughout the year, with a notable high of 77% in May, but September's balance of warmth and humidity creates a pleasant atmosphere for residents and visitors alike.

September Average Humidity in Acireale

This chart illustrates the average monthly humidity levels in Acireale, 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.
JanFebMarAprMayJunJulAugSepOctNovDec75%71%71%76%77%76%72%70%73%73%75%75%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Acireale

In September, Acireale, Italy, experiences a UV Index of 8, placing it in the very high exposure category with a burn time of just 15 minutes. This marks a slight drop from the peak summer months, where the UV Index reaches its maximum of 10, but caution is still necessary as the sun remains strong. The trend throughout the year shows a steady increase from January's moderate levels up to the intense summer sun, peaking in June through August. As autumn approaches, there's a gradual decrease, evidenced by the October UV Index dropping to 7, yet September remains a month when sun protection is essential. For more detailed insights into UV levels in this charming Sicilian town, visit Acireale UV Index.

Maximum UV Index Levels in Acireale for September

The chart shows the monthly maximum UV Index (UVI) for Acireale 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.
JanFebMarAprMayJunJulAugSepOctNovDec356891010108743
Data source: Acireale 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 Acireale

As summer gently transitions into autumn, September in Acireale, Italy, boasts a delightful 333 hours of sunshine, offering a perfect balance between warmth and respite from the sweltering heat of the preceding months. Following a peak in July with 417 hours, sunlight gradually begins to wane, yet September remains a favorite, more temperate than the scorching peak months. With May and June also showcasing impressive sunshine totals, visitors can relish in the golden days before the cooler October arrives, which brings 299 hours—a notable decrease that hints at the approaching winter. This month is ideal for enjoying outdoor strolls along the stunning coastline and soaking in the vibrant local culture, all under the glorious Italian sun.

Monthly Sunshine Duration in Acireale: September Highlighted

The September sunshine duration represents the total number of hours Acireale 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.
JanFebMarAprMayJunJulAugSepOctNovDec214h270h326h346h394h399h417h394h333h299h261h263h
Data source: Acireale September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Acireale During September

In Acireale, Italy, September offers a delightful transition into autumn with a 64% chance of sunny weather. Following the peak summer months of July and August, where the sun shines brightly about 95% and 94% of the time respectively, September maintains a commendable level of sunshine. While the likelihood of sunny days decreases slightly, it remains notably higher than many months earlier in the year, such as January and April, which see only 51% and 50% sunny days. This trend suggests that September is a favorable month for outdoor activities, allowing visitors and locals alike to bask in pleasant weather before the cooler months set in.

Percentage of Sunny Days in September in Acireale

The chart illustrates the percentage of sunny days in Acireale 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 Acireale experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec52%72%62%50%64%67%95%94%64%45%48%61%
Data source: Acireale September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Acireale in September

As summer fades into autumn, September in Acireale, Italy showcases a gentle transition in daylight duration, offering about 12 hours of light. This marks a gradual decline from the 14 hours enjoyed during the peak months of June, July, and even August. With daylight hours steadily decreasing, September serves as a bridge between the vibrant summer days and the shorter ones that follow in October. This rhythmic ebb and flow of sunlight reflects nature's cyclical beauty, inviting residents and visitors alike to savor the remaining warmth and clarity of early autumn before the darker months arrive.

Average Daylight Hours in Acireale for September

The chart illustrates the variation in daylight duration in Acireale throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 53m10h 47m11h 58m13h 10m14h 11m14h 42m14h 25m13h 32m12h 23m11h 11m10h 8m9h 36m
Data source: Acireale daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Acireale

As September unfolds in Acireale, Italy, the gentle whispers of the September wind settle at an average speed of 2.5 m/s (6 mph), marking a subtle shift from the lively breezes of summer. This month's breeze is notably the calmest of the year, continuing the trend of decreasing wind speeds, which peaked earlier in the year. Following the warmer months of July and August, where winds hovered around 2.8 m/s (6 mph), September’s tranquility invites reflective moments and leisurely strolls through the charming streets. As autumn approaches, the winds begin to pick up again in October, hinting at a seasonal transformation that will soon bring refreshing gusts back to this delightful coastal town.

Average September Wind Speed in Acireale

The chart displays monthly wind speed patterns in Acireale, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.23.42.73.32.82.62.82.72.5 m/s3.93.64.0
Data source: Acireale September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Acireale Compares to Other Months

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

In September, the weather is notably warmer, with temperatures ranging from a minimum of 19°C (67°F) to a maximum of 31°C (87°F), and an average of 25°C (77°F). The month experiences a moderate level of precipitation, totaling 35 mm (1.4 in) across about 7 days, contributing to a humidity level of 73%. In contrast, January is much cooler, with temperatures varying from a minimum of 4°C (40°F) to a maximum of 18°C (65°F), averaging around 12°C (54°F). While it sees slightly higher precipitation at 46 mm (1.8 in) over 6 days, the humidity remains similar at 75%. For more detailed insights, check Acireale weather in January.

In September, the weather is warm and inviting, with average temperatures around 25°C (77°F) and highs reaching up to 31°C (87°F). The month experiences moderate precipitation of 35 mm (1.4 in) over approximately 7 days, combined with a relatively high humidity of 73%. In contrast, February brings a cooler climate, featuring average temperatures of 13°C (56°F) and maximums of 19°C (67°F). Although February has a higher precipitation level of 60 mm (2.4 in), it occurs over just 5 days, and humidity remains slightly lower at 71%. For more detailed information on February weather, visit Acireale weather in February.

September weather tends to be quite warm, with average temperatures ranging from a minimum of 19°C (67°F) to a maximum of 31°C (87°F), and it sees about 35 mm (1.4 in) of precipitation over approximately 7 days. This month presents a generally humid atmosphere, with humidity levels at 73%. In contrast, March is cooler, with average temperatures between 8°C (47°F) and 20°C (69°F), accompanied by a higher precipitation level of 61 mm (2.4 in) distributed over 8 days and a slightly lower humidity at 71%. For a more detailed look at the weather patterns during this month, check out Acireale weather in March.

The weather in September is notably warmer than in April, with average temperatures ranging from a minimum of 19°C (67°F) to a maximum of 31°C (87°F), compared to April's milder range of 10°C (50°F) to 21°C (71°F). September also experiences higher humidity at 73%, while April's humidity is slightly higher at 76%. Additionally, September has more precipitation, totaling 35 mm (1.4 in) over 7 days, compared to April's 26 mm (1.0 in) spread across 6 days. For more details, check out Acireale weather in April.

September experiences warmer temperatures compared to May, with averages ranging from a minimum of 19°C (67°F) to a maximum of 31°C (87°F) versus May's cooler range of 13°C (55°F) to 25°C (78°F). Additionally, September tends to be wetter, with 35 mm (1.4 in) of precipitation occurring over 7 days, while May only sees 12 mm (0.5 in) over just 2 days. Humidity levels are relatively similar, with September at 73% and May slightly higher at 77%. For more detailed weather information, you can check Acireale weather in May.

In September, the weather is generally warmer than in June, with average temperatures reaching 25°C (77°F) compared to June's 23°C (74°F). While both months experience warm highs, September can peak at 31°C (87°F), slightly lower than June's maximum of 32°C (90°F). Precipitation is more frequent in September, with 35 mm (1.4 in) over 7 days, compared to just 18 mm (0.7 in) over 2 days in June, leading to a more humid environment in early autumn. Overall, September tends to have a higher humidity level at 73%, slightly lower than June's 76%. For more detailed insights on the climate during this month, check Acireale weather in June.

In comparing the weather between September and July, we observe distinct differences in temperature and precipitation. September typically sees a minimum temperature of 19°C (67°F) with an average of 25°C (77°F) and a maximum of 31°C (87°F). In contrast, July tends to be warmer, with minimum temperatures around 22°C (72°F), an average of 26°C (80°F), and maximums reaching up to 34°C (94°F). Additionally, September experiences more rainy days with a total precipitation of 35 mm (1.4 in) over 7 days, compared to July's much drier conditions of only 8 mm (0.3 in) over just 2 days. Interestingly, both months maintain a similar humidity level of around 72%. For a more detailed look at July’s weather, visit Acireale weather in July.

In comparing the weather of September to August, September experiences slightly cooler temperatures, with a minimum of 19°C (67°F) and an average of 25°C (77°F), compared to August's minimum of 22°C (72°F) and average of 27°C (81°F). The maximum temperature in September reaches 31°C (87°F), significantly lower than August's peak of 37°C (99°F). Precipitation also differs notably, with September recording 35 mm (1.4 in) over 7 days, while August sees only 6 mm (0.2 in) across just 1 day. Humidity remains relatively similar, with September at 73% and August at 70%. For more detailed insights, you can check Acireale weather in August.

In September, the weather typically showcases warmer temperatures, with averages around 25°C (77°F) and highs reaching 31°C (87°F). Precipitation is relatively low at 35 mm (1.4 in), affecting only about 7 days of the month. Humidity remains steady at 73%, contributing to a warm, enjoyable atmosphere.

In contrast, October sees a notable drop in temperatures, with an average of 21°C (70°F) and highs of 27°C (80°F). However, the month experiences a significant increase in rainfall, totaling 146 mm (5.8 in) across approximately 10 days. Despite these changes, the humidity remains consistent at 73%. For more detailed insights, check out Acireale weather in October.

September and November present contrasting weather conditions. In September, the temperatures are warmer, with a minimum of 19°C (67°F) and an average of 25°C (77°F), peaking at 31°C (87°F). The month experiences relatively low precipitation at 35 mm (1.4 in) over 7 days, along with a humidity level of 73%. In contrast, November brings cooler temperatures, with a minimum of 11°C (52°F) and an average of 18°C (64°F), reaching a maximum of 23°C (74°F). This month sees a significant rise in precipitation to 131 mm (5.1 in) across 11 days, and humidity slightly increases to 75%. For more details on the November climate, visit Acireale weather in November.

The weather in September is typically warmer and more humid compared to December. September boasts minimum temperatures around 19°C (67°F) and averages of 25°C (77°F), reaching highs of 31°C (87°F). In contrast, December experiences cooler conditions with minimum temperatures dropping to 9°C (48°F), an average of 14°C (58°F), and maximums of 19°C (67°F). Interestingly, both months receive similar amounts of rainfall—approximately 35 mm (1.4 in)—but December sees slightly more rainy days at 8 compared to September's 7. Humidity levels are relatively consistent, with September at 73% and December slightly higher at 75%. For more details about December weather, check out Acireale weather in December.

Compare Acireale's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Acireale

As September arrives in Acireale, the weather starts to transition from the warm summer months to a more moderate climate. Visitors can expect pleasant temperatures, with the warmest days still reaching into the low 30s °C (high 80s °F), but the evenings become cooler and more refreshing, making it an ideal time for exploring the town. With an average humidity of 73% and some rainfall, September is wetter than the peak summer months but greener and more vibrant, setting the perfect backdrop for experiencing local culture and festivals. For an in-depth look at how this charming town's weather shapes its seasonal offerings, explore Acireale Climate.