September Weather in Siracusa, Italy

Last updated: March 24, 2025

September in Siracusa, Italy offers a delightful transition into the autumn season, with maximum temperatures reaching a pleasant 29°C (84°F) and an average of 24°C (76°F). As the warmth persists, the minimum temperature settles around 19°C (67°F), creating comfortable evenings ideal for outdoor dining and exploration. Rainfall is modest, with 37 mm (1.5 in) spread across seven days, allowing for dry spells to enjoy the stunning coastal views. The humidity remains at 73%, adding a gentle balminess to the air. Overall, September paints a vibrant and inviting picture for visitors to embrace the charm of this historic city.

September Temperature in Siracusa

As summer gracefully transitions into autumn, Siracusa, Italy experiences a delightful shift in temperatures during September. With minimums averaging around 19°C (67°F) and maximums reaching 29°C (84°F), the weather remains pleasantly warm, making it an ideal time for outdoor exploration. The average temperature of 24°C (76°F) offers a lovely balance, inviting visitors to relish the lingering summer vibes while avoiding the peak heat of August. As the days grow shorter, the inviting warmth of early fall creates a comfortable setting for leisurely strolls through this historic coastal city, where the blend of culture and nature captivates at every turn.

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

The chart illustrates September temperature patterns in Siracusa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec545556596573798176696457
Data source: Temperature data for Siracusa 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 Siracusa

September in Siracusa, Italy, marks a noticeable uptick in precipitation, with an average of 37 mm (1.5 in) falling over 7 days. This increase serves as a transition from the drier summer months, where rainfall is minimal—just 10 mm (0.4 in) in August—and hints at the more substantial autumnal showers ahead. Interestingly, this pattern reflects a broader trend seen throughout the year, where the dryness of July and August contrasts sharply with the wetter months of October and November. As summer gently gives way to fall, September's moderate rainfall plays a crucial role in replenishing the region's lush landscapes, preparing them for the more substantial 129 mm (5.1 in) deluges that are characteristic of the coming months.

September Precipitation Trends in Siracusa

The chart displays monthly precipitation patterns in Siracusa, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4053562012196103712912936
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Siracusa

In Siracusa, Italy, September ushers in a modest humidity level of 73%, reflecting a trend that stabilizes after the summer months. Throughout the year, humidity exhibits slight fluctuations, peaking in April and May at 76% and 77% respectively, while the warmest months of July and August bring lower moisture levels at 72% and 70%. As summer gives way to autumn, September's figures indicate a gentle return towards the average, echoing the 75% humidity seen in both January and November. This gradual shift not only signals a change in the season but also adds a refreshing quality to the Mediterranean atmosphere of Siracusa.

September Average Humidity in Siracusa

This chart illustrates the average monthly humidity levels in Siracusa, 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 Siracusa

As summer gives way to autumn in Siracusa, September sees a slight decline in the UV Index, which stands at 8, categorized as very high. This is a continuation of the intense UV levels experienced during the peak summer months, with the burn time remaining short at just 15 minutes. While slightly cooler weather might tempt you to linger outdoors, it's crucial to stay vigilant about sun exposure. The UV Index decreases further in October, dropping to 7 and transitioning to a high exposure category. Overall, September indicates the tail end of the intense sun season, reminding sun-seekers to remain proactive with sun safety measures. For detailed information on UV levels throughout the year, visit Siracusa UV Index.

Maximum UV Index Levels in Siracusa for September

The chart shows the monthly maximum UV Index (UVI) for Siracusa 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: Siracusa 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 Siracusa

As September arrives in Siracusa, Italy, the summer's warmth lingers, providing a generous 334 hours of sunshine. This month marks a subtle transition, where sunlight begins to soften, yet it still holds onto the vibrant energy of late summer. The trend reveals a gradual decline from the peak of 416 hours in July, as the days start to shorten, fading from the sun-drenched exuberance of August’s 394 hours. While September may bid farewell to the high summer months, it offers a golden opportunity to savor the beautiful Mediterranean light, perfect for exploring the ancient ruins and charming streets of this historic city. As autumn approaches, the remaining sunshine continues to charm both locals and visitors alike, wrapping Siracusa in a warm embrace before the cooler months set in.

Monthly Sunshine Duration in Siracusa: September Highlighted

The September sunshine duration represents the total number of hours Siracusa 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.
JanFebMarAprMayJunJulAugSepOctNovDec217h271h330h347h394h399h416h394h334h300h265h266h
Data source: Siracusa September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Siracusa During September

In September, Siracusa enjoys a 65% chance of sunny weather, marking a delightful transition from the blazing summer months. This statistic reflects a significant dip from the peak sunshine of August, which boasts an impressive 95% likelihood, yet still offers a warm embrace as summer fades into autumn. Looking at the broader trends, the region typically sees a gradual decrease in sunny days, starting from a high in the summer months, with September maintaining a favorable outlook compared to the cooler months ahead. Overall, visitors can expect pleasant weather, perfect for exploring the rich history and stunning landscapes of this charming Sicilian city.

Percentage of Sunny Days in September in Siracusa

The chart illustrates the percentage of sunny days in Siracusa 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 Siracusa experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec54%74%67%49%64%71%96%95%65%48%48%64%
Data source: Siracusa September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Siracusa in September

As summer gracefully gives way to autumn, September in Siracusa, Italy experiences a delightful transition in daylight duration. With 12 hours of daylight, the month marks a slight decrease from the sun-soaked 14 hours of summer, as August bids farewell. This gradual shift reflects a broader trend, where daylight begins its steady decline from the peak of June, gradually narrowing down to 9 hours by December. September's ample sunlight invites lingering evenings, making it a perfect time for outdoor adventures and enjoying the city's vibrant atmosphere before the shorter days settle in for winter.

Average Daylight Hours in Siracusa for September

The chart illustrates the variation in daylight duration in Siracusa throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 55m10h 49m11h 58m13h 9m14h 9m14h 39m14h 23m13h 30m12h 22m11h 11m10h 10m9h 38m
Data source: Siracusa daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Siracusa

As summer wanes and autumn approaches, September in Siracusa welcomes a gentle shift in the breeze, with an average wind speed of 3.3 m/s (7 mph). This slight uptick from the quieter summer months, where speeds hovered around 3.0 to 3.2 m/s, signals the impending change of seasons. In contrast to earlier months, where the wind often felt subdued, September offers a refreshing touch, echoing the transition towards the brisker October winds at 5.0 m/s (11 mph). This gradual increase not only enhances the vibrant Sicilian landscape but also invites locals and visitors alike to embrace the refreshing coastal air, setting the perfect backdrop for evenings spent wandering through the enchanting streets of this historic city.

Average September Wind Speed in Siracusa

The chart displays monthly wind speed patterns in Siracusa, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.64.13.74.43.23.03.13.23.3 m/s5.04.55.2
Data source: Siracusa September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Siracusa Compares to Other Months

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

September and January present contrasting weather conditions. In September, temperatures are significantly warmer, ranging from a minimum of 19°C (67°F) to a maximum of 29°C (84°F) with an average of 24°C (76°F). The humidity stands at 73%, and there is a light amount of precipitation, totaling 37 mm (1.5 in) over 7 days. In contrast, January experiences much cooler temperatures, with a minimum of 4°C (39°F) and a maximum of 18°C (64°F), averaging only 12°C (54°F). The humidity slightly increases to 75%, and precipitation is slightly higher at 40 mm (1.6 in) over 6 days. For more detailed information, you can check Siracusa weather in January.

September and February present contrasting weather conditions. In September, temperatures range from a minimum of 19°C (67°F) to a maximum of 29°C (84°F), with an average of 24°C (76°F). The month sees about 37 mm (1.5 in) of precipitation over approximately 7 days, coupled with a humidity level of 73%. In stark contrast, February offers cooler temperatures, with a minimum of 6°C (43°F) and a maximum of 18°C (65°F), averaging only 13°C (55°F). This month experiences slightly higher precipitation at 53 mm (2.1 in) over 5 days and a lower humidity of 71%. For more details on February weather, you can check out Siracusa weather in February.

In September, the weather is notably warmer, with average temperatures ranging from a minimum of 19°C (67°F) to a maximum of 29°C (84°F), while March experiences cooler conditions, with averages between 8°C (46°F) and 19°C (67°F). September also tends to be drier, receiving 37 mm (1.5 in) of precipitation over 7 days compared to March's 56 mm (2.2 in) over the same number of days. Humidity levels are slightly higher in September at 73%, compared to March's 71%. For more details on the specific weather conditions in March, you can visit Siracusa weather in March.

When comparing the weather in September and April, a clear contrast emerges. September boasts warmer temperatures, with a minimum of 19°C (67°F) and an average of 24°C (76°F), reaching a maximum of 29°C (84°F). In contrast, April is much cooler, with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 20°C (69°F) and an average of 15°C (60°F). While September experiences more rainfall, accumulating 37 mm (1.5 in) over 7 days, April remains relatively drier with only 20 mm (0.8 in) over 5 days. Humidity levels are similar, at 73% in September and 76% in April. For more detailed weather insights specific to April, you can visit Siracusa weather in April.

When comparing the weather in September and May, September tends to be warmer and more humid. In September, average temperatures range from a minimum of 19°C (67°F) to a maximum of 29°C (84°F), with an average humidity of 73%. The month experiences about 37 mm (1.5 in) of precipitation spread over 7 days. In contrast, May offerings milder conditions with temperatures ranging from a low of 12°C (54°F) to a high of 25°C (77°F) and somewhat higher humidity at 77%. Notably, May has significantly less rainfall, averaging only 12 mm (0.5 in) over just 2 days. For more details on the weather in May, visit Siracusa weather in May.

When comparing the weather in September and June, September features slightly warmer temperatures, with an average of 24°C (76°F) compared to June's 23°C (73°F). The maximum temperature in September can reach up to 29°C (84°F), while June can peak at a higher 32°C (91°F). Additionally, September experiences more rainfall, with 37 mm (1.5 in) over 7 days, in contrast to June's modest 19 mm (0.7 in) over just 2 days. Humidity levels are similar in both months, with September at 73% and June slightly higher at 76%. For more details, you can check out Siracusa weather in June.

In comparing the weather between September and July, September tends to be slightly cooler, with average temperatures ranging from a minimum of 19°C (67°F) to a maximum of 29°C (84°F), whereas July experiences warmer conditions with a minimum of 21°C (71°F) and a maximum of 33°C (91°F). Additionally, September sees more precipitation, totaling 37 mm (1.5 in) over about 7 days, compared to July’s much drier atmosphere with only 6 mm (0.2 in) over just 1 day. Despite this increase in rainfall, the humidity remains relatively consistent, hovering around 73% in September and 72% in July. For more details on July weather, you can visit Siracusa weather in July.

In August, the weather is typically hotter, with minimum temperatures around 22°C (72°F) and average highs reaching a scorching 37°C (99°F). This month experiences very little rainfall, averaging only 10 mm (0.4 in) over 2 days, and humidity remains relatively low at 70%. In contrast, September brings cooler temperatures with a minimum of 19°C (67°F) and an average high of 29°C (84°F), accompanied by increased precipitation of 37 mm (1.5 in) spread over 7 days and slightly higher humidity at 73%. For those interested in more details, check out Siracusa weather in August.

In September, the weather is typically warmer with average temperatures ranging from a minimum of 19°C (67°F) to a maximum of 29°C (84°F). The month sees about 37 mm (1.5 in) of precipitation spread over 7 days, maintaining a constant humidity level of 73%. In contrast, October brings cooler temperatures, with a minimum of 15°C (60°F) and a maximum of 26°C (80°F). However, it experiences a significant increase in rainfall, totaling 129 mm (5.1 in) over 11 days, while the humidity remains steady at 73%. This shift from warmer to cooler and wetter conditions marks a notable transition between the two months. For more detailed information on October weather, you can refer to Siracusa weather in October.

September and November present quite a contrast in weather conditions. In September, temperatures are warmer, with a minimum of 19°C (67°F) and an average of 24°C (76°F), peaking at 29°C (84°F). The month sees moderate rainfall, totaling 37 mm (1.5 in) over about 7 days, and humidity levels hover around 73%. In contrast, November brings cooler weather, with temperatures dropping to a minimum of 11°C (52°F) and averaging 18°C (64°F), reaching a maximum of 23°C (73°F). Precipitation increases significantly, with 129 mm (5.1 in) falling over roughly 11 days, while humidity climbs slightly to 75%. For more detailed information, check Siracusa weather in November.

In September, the weather is warm with temperatures ranging from a minimum of 19°C (67°F) to a maximum of 29°C (84°F), and an average of 24°C (76°F). The month sees about 37 mm (1.5 in) of precipitation over approximately 7 days, accompanied by a humidity level of 73%.

In contrast, December brings cooler temperatures, with the minimum dropping to 8°C (47°F) and maximum reaching 19°C (66°F), averaging at 14°C (58°F). The precipitation is slightly lower at 36 mm (1.4 in) over the same 7 days, but humidity increases to 75%. For more detailed information, you can check Siracusa weather in December.

Compare Siracusa's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Siracusa

As summer gracefully transitions into autumn, September in Siracusa offers a delightful blend of warm sunshine and refreshing breezes. With comfortable average temperatures hovering around 24°C, it stands apart from the sweltering peaks of July and August. While the likelihood of rain increases slightly, with about a week of precipitation, this month rarely dulls the spirit of outdoor exploration. The humidity, while still present, is mitigated by cooler evenings, making it a perfect time to enjoy the rich cultural offerings of the city. For those seeking a pleasant climate with fewer crowds, September is undoubtedly a gem. For a deeper look into what to expect throughout the year, check out Siracusa Climate.