September Weather in Sperlonga, Italy

Last updated: March 24, 2025

September in Sperlonga, Italy boasts a delightful blend of warm weather and refreshing sea breezes. With temperatures reaching a maximum of 29°C (84°F) and an average of 22°C (73°F), visitors can enjoy pleasant days ideal for exploring the scenic coastline. The month experiences a minimum temperature of 13°C (56°F), offering a comfortable coolness in the evenings. While September brings 102 mm (4.0 in) of rainfall spread over about 7 days, the humidity levels at 65% ensure a refreshing ambiance. Whether soaking up the sun on the beach or wandering the charming streets, Sperlonga in September is a captivating destination for travelers.

September Temperature in Sperlonga

In September, Sperlonga transitions gracefully from the summer heat, offering a delightful climate marked by mild temperatures. With lows averaging around 13°C (56°F) and delightful highs reaching up to 29°C (84°F), the month showcases a comfortable average of 22°C (73°F). This pleasant warmth invites visitors to bask in the sun and enjoy the stunning coastal views without the sweltering heat of August. As the month progresses, a gentle shift towards cooler autumn evenings begins, setting the stage for comfortable explorations of this charming Italian town. Overall, September stands out as a sweet spot for travelers seeking a blend of warm days and cool, serene nights.

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

The chart illustrates September temperature patterns in Sperlonga, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec495152576472777872655952
Data source: Temperature data for Sperlonga 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 Sperlonga

In September, Sperlonga experiences a noticeable increase in precipitation, recording 102 mm (4.0 in) over seven days, marking a shift from the summer's arid conditions. This spike follows the notably dry months of July and August, where rain was scarce, with only 16 mm (0.6 in) and 11 mm (0.4 in), respectively. The transition into autumn brings a revitalizing change, as rainfall prepares the landscape for the lush months ahead. Compared to the preceding months, September's precipitation is relatively robust, foreshadowing the wetter conditions that will dominate in October and November, indicating a clear trend towards increased rainfall as the seasons shift. This blend of comfort and freshness makes September a unique period in Sperlonga’s climatic calendar, where the remnants of summer gracefully give way to the refreshing embrace of fall.

September Precipitation Trends in Sperlonga

The chart displays monthly precipitation patterns in Sperlonga, 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.
JanFebMarAprMayJunJulAugSepOctNovDec96115946465301611103116316209
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sperlonga

In Sperlonga, Italy, September marks a transition in humidity as summer yields to autumn. With a humidity level of 65%, September sits comfortably between the drier summer months of July and August, which recorded 57% and 53% respectively. This slight uptick signals the onset of cooler weather, as the humidity typically rises in the fall. Notably, the month follows a more humid August and precedes October's 75%, emphasizing a gradual increase as the region braces for the winter months. Thus, September serves as a refreshing bridge, offering a blend of lingering warmth and the promise of the crispness to come.

September Average Humidity in Sperlonga

This chart illustrates the average monthly humidity levels in Sperlonga, 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.
JanFebMarAprMayJunJulAugSepOctNovDec84%76%69%70%70%61%57%53%65%75%82%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sperlonga

As summer transitions into autumn, Sperlonga experiences a notable decrease in UV Index levels. In September, the UV Index settles at 7, classified as high, allowing for a burn time of 25 minutes—a reminder to embrace sun safety amid lingering warmth. This drop in UV intensity follows the peak summer months, where the index soared to a maximum of 10 in both June and July, requiring vigilant protection against sunburn. The gradual decline from the summer highs to September's level makes it an ideal time to enjoy the Mediterranean sun while taking necessary precautions. To stay informed about UV exposure levels throughout the year, check out Sperlonga UV Index.

Maximum UV Index Levels in Sperlonga for September

The chart shows the monthly maximum UV Index (UVI) for Sperlonga 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.
JanFebMarAprMayJunJulAugSepOctNovDec34579101097642
Data source: Sperlonga 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 Sperlonga

September in Sperlonga, Italy, continues the trend of abundant sunshine, with 337 hours of glorious daylight illuminating its stunning coastal vistas. Following a peak in July at 427 hours, the month gracefully transitions from the summer's warmth while still showcasing a significant amount of sunshine, outshining both October and the rest of the autumn months. The gentle decrease in daylight from the height of summer adds to the charm of this coastal gem, making it an ideal time for leisurely strolls along the beach or explorations of its historic sites. As the sun sets over the turquoise waters, visitors can relish the enchanting blend of warmth and early autumn breezes that define this serene Mediterranean escape.

Monthly Sunshine Duration in Sperlonga: September Highlighted

The September sunshine duration represents the total number of hours Sperlonga 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.
JanFebMarAprMayJunJulAugSepOctNovDec197h259h323h350h397h411h427h398h337h313h244h244h
Data source: Sperlonga September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Sperlonga During September

As summer wanes and September arrives in Sperlonga, Italy, the likelihood of sunny weather remains pleasantly moderate at 54%. This marks a slight decrease from the peaks of July and August, which boast impressive sun chances of 74% and 76%, respectively. Interestingly, September's sun probability aligns closely with the spring months, where March and May hover around the 55% and 49% marks. This trend suggests that while the intense summer heat begins to ebb, visitors can still look forward to embracing the sun in early autumn, making it an appealing time to explore the charming coastal town. With pleasant temperatures and a balanced chance of sunshine, September in Sperlonga offers a wonderful blend of summer's warmth and autumn's charm.

Percentage of Sunny Days in September in Sperlonga

The chart illustrates the percentage of sunny days in Sperlonga 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 Sperlonga experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec32%53%55%41%49%58%75%76%54%42%31%50%
Data source: Sperlonga September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Sperlonga in September

As summer fades into autumn, September in Sperlonga, Italy, brings a gentle transition in daylight hours. With 12 hours of daylight, this month marks a noticeable shift from the sun-drenched days of June and July, where sunlight peaked at 15 hours. Following the vibrant hues of summer, September still offers a generous glow, yet signals the gradual retreat of daylight. As daylight wanes into October, dipping to 11 hours, it invites a chance to savor the softer light and lingering warmth before the shorter days of winter settle in, highlighting nature's rhythmic cycle.

Average Daylight Hours in Sperlonga for September

The chart illustrates the variation in daylight duration in Sperlonga throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 34m10h 37m11h 57m13h 20m14h 29m15h 5m14h 46m13h 44m12h 25m11h 3m9h 51m9h 14m
Data source: Sperlonga daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Sperlonga

As summer gracefully transitions to autumn, September in Sperlonga experiences a gentle decline in wind speed, averaging just 2.3 m/s (5 mph). This marks a shift from the more brisk breezes of the earlier months, with July and August witnessing slightly higher winds of 2.7 m/s (6 mph) and 2.9 m/s (6 mph), respectively. Following a peak during the winter months of late November, where winds average 3.9 m/s (9 mph), September's calmness invites visitors to relish the serene coastal beauty, making it a perfect time for leisurely strolls along the beach. As the year progresses, it's clear that the winds in Sperlonga settle into a mellower rhythm, perfectly complementing the tranquil ambiance of the changing season.

Average September Wind Speed in Sperlonga

The chart displays monthly wind speed patterns in Sperlonga, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.03.12.93.03.02.42.72.92.3 m/s2.93.93.2
Data source: Sperlonga September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Sperlonga Compares to Other Months

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

In September, the weather is noticeably warmer with average temperatures ranging from a minimum of 13°C (56°F) to a maximum of 29°C (84°F), creating a pleasant backdrop for outdoor activities. The month experiences an average precipitation of 102 mm (4.0 in) over about 7 days, accompanied by a moderate humidity of 65%. In stark contrast, January brings much cooler conditions, with temperatures ranging from a frigid minimum of -2°C (29°F) to a maximum of 17°C (63°F). This month sees an average precipitation of 96 mm (3.8 in) spread across 10 days, along with higher humidity levels of 84%. For more details about the January climate in Sperlonga, check out Sperlonga weather in January.

In comparing the weather of September and February, September boasts much warmer temperatures, with a minimum of 13°C (56°F), an average of 22°C (73°F), and a maximum reaching 29°C (84°F). This period typically sees moderate precipitation of 102 mm (4.0 in) over about 7 days, alongside a humidity level of 65%. In contrast, February presents a much colder climate, with temperatures dropping to a minimum of -1°C (31°F) and an average of only 11°C (51°F), peaking at 17°C (62°F). The month experiences slightly higher precipitation at 115 mm (4.5 in) across 10 days and increased humidity at 76%. For more detailed insights on February weather, check this link: Sperlonga weather in February.

September and March present distinctly different weather patterns. In September, temperatures are generally warmer, with an average of 22°C (73°F), reaching a maximum of 29°C (84°F) on warmer days. This month experiences around 102 mm (4.0 in) of precipitation over approximately 7 days, contributing to a relatively comfortable humidity of 65%. In contrast, March is much cooler, with an average temperature of 11°C (53°F) and highs only reaching 18°C (65°F). This month has slightly lower precipitation at 94 mm (3.7 in), but it occurs over more days, about 10, and the humidity levels increase to 69%. For a more detailed look at March weather, you can check Sperlonga weather in March.

In September, temperatures are generally warmer, with a minimum of 13°C (56°F) and an average high of 29°C (84°F), compared to April's cooler minimum of 5°C (41°F) and an average high of 24°C (76°F). The humidity in September is around 65%, slightly lower than April's 70%, which may make the warmer temperatures feel more comfortable. However, September experiences higher precipitation with 102 mm (4.0 in) over 7 days, whereas April sees less rainfall at 64 mm (2.5 in) spread over 10 days. For a more detailed look at April weather, check out this link: Sperlonga weather in April.

September and May present distinct weather patterns, reflecting the transitions between summer and autumn. In September, temperatures range from a mild 13°C (56°F) at night to a warm 29°C (84°F) during the day, with an average of 22°C (73°F). The month experiences 102 mm (4.0 in) of rainfall over approximately 7 days, accompanied by a comfortable humidity level of 65%. Conversely, May tends to be cooler, with temperatures fluctuating from a low of 8°C (48°F) to a high of 28°C (83°F) and an average of 18°C (64°F). Precipitation is lighter at 65 mm (2.5 in), falling on about 9 days, and humidity is slightly higher at 70%. This comparison highlights the warmer, wetter conditions of September versus the cooler, drier feel of May, making both months unique in their own right. For more information about May weather, you can check Sperlonga weather in May.

Both September and June exhibit similar temperature ranges, with minimums around 13°C (56°F) and average highs reaching about 29°C (84°F for September and 85°F for June). However, September tends to be wetter, receiving 102 mm (4.0 in) of precipitation over approximately 7 days, compared to June's much drier 30 mm (1.2 in) over just 4 days. The humidity levels are also slightly higher in September at 65%, compared to 61% in June, contributing to a more humid feel as summer transitions into fall. For a closer look at conditions during this time, you can explore Sperlonga weather in June.

September weather is generally cooler and wetter compared to July. While September sees average temperatures ranging from a minimum of 13°C (56°F) to a maximum of 29°C (84°F), July enjoys warmer temperatures with a minimum of 19°C (67°F) and a maximum of 30°C (86°F). Additionally, September experiences significantly more rainfall, with 102 mm (4.0 in) over 7 days, while July is much drier, recording only 16 mm (0.6 in) over 2 days. The humidity levels are also slightly higher in September at 65%, compared to July's 57%. For a detailed look at July weather in Sperlonga, you can check out Sperlonga weather in July.

In comparing the weather between September and August, we see notable differences in temperature and precipitation. September experiences a more moderate temperature range, with a minimum of 13°C (56°F) and an average of 22°C (73°F), while August is warmer, with a minimum of 20°C (68°F) and an average of 26°C (79°F). Additionally, September has more precipitation, totaling 102 mm (4.0 in) over 7 days, in stark contrast to August's relatively dry conditions, which bring only 11 mm (0.4 in) across just 2 days. This leads to higher humidity levels in September at 65%, compared to August's 53%. For more detailed insights, you can view Sperlonga weather in August.

In comparing the weather between September and October, September tends to be warmer, with average temperatures ranging from 13°C to 29°C (56°F to 84°F), while October experiences cooler conditions, with temperatures ranging from a minimum of 11°C to a maximum of 25°C (52°F to 78°F). Both months see a significant amount of rainfall, though October is slightly wetter, recording 116 mm (4.6 in) over 9 days compared to September’s 102 mm (4.0 in) over 7 days. Additionally, humidity levels increase in October, reaching 75% compared to September's 65%. For more details, you can check Sperlonga weather in October.

September boasts warmer temperatures, with an average of 22°C (73°F) and highs reaching 29°C (84°F), while November experiences significantly cooler conditions, with an average of 15°C (59°F) and maximum temperatures around 22°C (71°F). Additionally, September sees a moderate level of precipitation at 102 mm (4.0 in) spread over 7 days, whereas November is much wetter, accumulating 316 mm (12.4 in) during 17 days of rain. The humidity also increases from 65% in September to 81% in November, contributing to a moister atmosphere. For more specific details about November conditions, you can visit Sperlonga weather in November.

In September, temperatures are notably warmer with a minimum of 13°C, averaging around 22°C, and peaking at 29°C, making it a pleasant month for outdoor activities. The precipitation is relatively moderate, totaling 102 mm over about 7 days, and the humidity sits at a comfortable 65%. In contrast, December sees a significant drop in temperatures, with a minimum of 5°C and an average of 11°C, reaching a maximum of only 17°C. This month experiences more rainfall, with a total of 209 mm spread over 14 days, and the humidity increases to 84%, creating a much cooler and wetter atmosphere. For more details, you can check Sperlonga weather in December.

Compare Sperlonga's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Sperlonga

As September arrives in Sperlonga, the weather transitions towards the gentler embrace of autumn. With temperatures averaging around 22°C (73°F), this month offers a pleasant reprieve from the summer heat, while still delivering warm days where the maximum can reach 29°C (84°F). However, September isn’t without its quirks, as it sees an increase in precipitation compared to the preceding summer months, with about 102 mm (4.0 in) spread over approximately seven days, adding a refreshing touch to the air. The humidity levels linger around 65%, creating a comfortable atmosphere for both locals and visitors. This sweet spot in seasonal change makes September a great month for enjoying the captivating landscapes of Sperlonga. For more insights on weather patterns, visit Sperlonga Climate.