September Weather in Lido di Ostia, Italy

Last updated: March 24, 2025

Lido di Ostia in September offers a pleasant coastal escape, with average temperatures hovering around 23°C (73°F) and a comfortable maximum reaching 28°C (83°F). Visitors can enjoy warm days and mild evenings, perfect for leisurely strolls along the beach. However, it’s wise to be prepared for a touch of rain, as the month typically sees about 94 mm (3.7 in) of precipitation spread across 9 days. Despite this, the humidity remains at a manageable 71%, ensuring a delightful climate for both relaxation and exploration in this stunning Italian seaside town.

September Temperature in Lido di Ostia

In September, Lido di Ostia offers a delightful transition into autumn as temperatures remain pleasantly warm. With a minimum of 14°C (57°F) and a comfortable average of 23°C (73°F), the days are marked by inviting sunshine. Highs reaching up to 28°C (83°F) allow for lingering beach days and evening strolls along the coastline, making it one of the most enjoyable months of the year. As summer's swelter gradually fades away, September presents a perfect blend of warmth, ensuring that the charm of summer continues to linger while the autumn hues start making their appearance.

September Weather in Lido di Ostia: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Lido di Ostia, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec515354586472777873666054
Data source: Temperature data for Lido di Ostia 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 Lido di Ostia

In Lido di Ostia, Italy, September marks a notable shift in precipitation patterns, boasting a significant 94 mm (3.7 in) of rain over 9 days. This increase comes after a notably dry summer, where both July and August saw minimal rainfall of just 17 mm (0.7 in) and 13 mm (0.5 in) respectively. As autumn approaches, September's precipitation is slightly higher than that of October, which records 96 mm (3.8 in), indicating a transition into wetter months. This trend continues into November, where the rainfall jumps dramatically to 210 mm (8.3 in) over 17 days. Thus, September serves as a pivotal point, bridging the arid summer with the forthcoming, moisture-laden autumn, rejuvenating the landscape and setting the stage for the wetter months ahead.

September Precipitation Trends in Lido di Ostia

The chart displays monthly precipitation patterns in Lido di Ostia, 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.
JanFebMarAprMayJunJulAugSepOctNovDec80827550541617139496210155
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Lido di Ostia

In September, Lido di Ostia experiences a moderate humidity level of 71%, which reflects a gradual decrease from the peak of 80% in January. This month marks a turning point as summer gives way to autumn, with humidity levels dropping from the higher readings of the warm summer months—July and August, which recorded 70% and 68% respectively. Interestingly, September's humidity remains relatively stable when compared to earlier months, such as May and April, which hovered around 76% and 74%. As the year progresses, humidity is set to rise again in October, suggesting a shift towards the wetter months ahead, with November peaking at 79%. Overall, September serves as a bridge, transitioning from the lingering warmth of summer to the beginnings of autumn's embrace.

September Average Humidity in Lido di Ostia

This chart illustrates the average monthly humidity levels in Lido di Ostia, 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%73%69%74%76%73%70%68%71%76%79%77%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Lido di Ostia

In September, Lido di Ostia experiences a UV Index of 7, marking a transition from the intense summer months as the exposure category shifts to high. This indicates that while the sun is still strong, the risk of harm from unprotected sun exposure is reduced compared to the peak summer months of June and July, which recorded an extreme UV Index of 10. With a burn time of 25 minutes, visitors should still exercise caution and consider protective measures during outdoor activities. As summer wanes, September offers a balanced climate for enjoying the outdoors, making it an ideal time for sun seekers. For more detailed information, visit the Lido di Ostia UV Index.

Maximum UV Index Levels in Lido di Ostia for September

The chart shows the monthly maximum UV Index (UVI) for Lido di Ostia 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.
JanFebMarAprMayJunJulAugSepOctNovDec34578101097642
Data source: Lido di Ostia 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 Lido di Ostia

As summer gracefully transitions into fall, September in Lido di Ostia, Italy, welcomes a delightful blend of warmth and sunshine. With 338 hours of sunlight, it marks a comfortable dip from the vibrant July peak of 430 hours, yet remains a generous offering compared to the chillier months ahead. This month provides a perfect backdrop for leisurely seaside strolls and sunset views, all while basking in the fading summer glow. The steady decline in sunlight hours from August's 399 hints at the impending autumn, but the lingering warmth encourages both locals and tourists to savor outdoor delights a little longer before the days grow shorter. Thus, September embodies a tranquil yet vibrant transition, a beautiful reminder of summer’s legacy.

Monthly Sunshine Duration in Lido di Ostia: September Highlighted

The September sunshine duration represents the total number of hours Lido di Ostia 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.
JanFebMarAprMayJunJulAugSepOctNovDec204h261h329h357h403h416h430h399h338h316h250h247h
Data source: Lido di Ostia September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Lido di Ostia During September

As September arrives in Lido di Ostia, the likelihood of sunny weather remains promising, with a 58% chance of enjoying clear skies. This marks a gentle decline from the summer peak in August, where the sun shines brightly over 77% of the days. The trend reveals that while the summer months boast the highest probabilities of sunshine, September still offers a favorable transition into fall, holding onto much of the warmth and brightness that define the Italian coastline. Although the chance of sunshine dips compared to the peak summer months, it still surpasses the wetter autumn months ahead, providing a delightful opportunity for beachgoers to savor the lingering summer vibes.

Percentage of Sunny Days in September in Lido di Ostia

The chart illustrates the percentage of sunny days in Lido di Ostia 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 Lido di Ostia experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec40%57%62%51%53%59%71%77%58%44%38%51%
Data source: Lido di Ostia September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Lido di Ostia in September

As summer fades away, September in Lido di Ostia, Italy, ushers in the transition to autumn with an average of 12 hours of daylight. This marks a gentle decline from the peak summer brightness of 15 hours in June. The days gradually shorten following the vibrant months of May through August, where daylight lingers longer. While September enjoys a respectable amount of sunlight, it signals a retreat towards the shorter days of October and the winter months ahead, with only 11 hours of daylight remaining as the year progresses. This rhythm of changing daylight showcases the region's beautiful seasonal transitions, where each month offers a unique blend of sunshine and shadow, inviting both reflection and exploration.

Average Daylight Hours in Lido di Ostia for September

The chart illustrates the variation in daylight duration in Lido di Ostia throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 30m10h 35m11h 57m13h 21m14h 33m15h 9m14h 50m13h 47m12h 26m11h 2m9h 48m9h 10m
Data source: Lido di Ostia daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Lido di Ostia

As summer fades into autumn, September in Lido di Ostia experiences a gentle decline in average wind speed, settling at 3.0 m/s (7 mph). This transitional month stands out as the calmest of the year, following a relatively breezy July at 4.2 m/s (9 mph) and August’s modest 3.5 m/s (8 mph). The softer winds create a tranquil atmosphere, perfect for leisurely beach strolls and savoring the picturesque coastal scenery. Looking ahead, the wind picks up again in October, reaching 4.6 m/s (10 mph), hinting at the dynamic shifts that the seasons bring. Thus, September offers a serene respite before the autumn breezes return, inviting both relaxation and renewal along the beautiful shores of Lido di Ostia.

Average September Wind Speed in Lido di Ostia

The chart displays monthly wind speed patterns in Lido di Ostia, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.64.43.93.94.12.74.23.53.0 m/s4.65.15.1
Data source: Lido di Ostia September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Lido di Ostia Compares to Other Months

The weather in Lido di Ostia 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 Lido di Ostia and find detailed weather information for every month.

In September, the weather in Lido di Ostia is notably warmer, with average temperatures ranging from a mild 14°C (57°F) to a pleasant 28°C (83°F). The month also experiences relatively high humidity at 71% and receives about 94 mm (3.7 in) of precipitation over 9 days. In contrast, January sees much cooler temperatures, with averages between 1°C (34°F) and 17°C (63°F). Although precipitation is slightly lower at 80 mm (3.2 in) over the same number of rainy days, the humidity increases to 80%, giving the winter month a distinctly chillier feel. For more detailed insights, you can check Lido di Ostia weather in January.

In September, the weather is generally warm with temperatures ranging from a minimum of 14°C (57°F) to a maximum of 28°C (83°F), providing an average temperature of 23°C (73°F). During this month, rainfall is relatively common, with about 94 mm (3.7 in) of precipitation spread over approximately 9 days, contributing to a humidity level of 71%.

In contrast, February brings a much colder climate, with temperatures dipping as low as -2°C (29°F) and peaking at 17°C (63°F), resulting in an average temperature of 12°C (53°F). Precipitation is slightly lower at 81 mm (3.2 in) over approximately 10 days, and humidity remains a bit higher at 73%. For a detailed look at February weather, you can visit this link: Lido di Ostia weather in February.

Comparing September and March reveals significant contrasts in weather conditions. In September, temperatures are considerably warmer, with a minimum of 14°C (57°F) and an average of 23°C (73°F), peaking at a maximum of 28°C (83°F). This month also experiences higher humidity at 71% and more frequent precipitation, averaging 94 mm (3.7 in) over 9 days. In contrast, March is much cooler, with minimum temperatures dipping to -1°C (30°F) and an average of 12°C (54°F), only reaching a maximum of 18°C (65°F). Although March has slightly less precipitation at 75 mm (3.0 in) and similar humidity at 69%, it typically has fewer rainy days, averaging about 8. For more detailed insights into March weather, you can visit Lido di Ostia weather in March.

September and April showcase distinct differences in weather patterns. September boasts warmer temperatures, with an average of 23°C (73°F) and highs reaching 28°C (83°F), compared to April's more modest average of 14°C (58°F) and a maximum of 22°C (72°F). While both months experience some rainfall, September sees more precipitation at 94 mm (3.7 in), occurring over 9 days, whereas April's total is lower at 50 mm (2.0 in) across 7 days. Additionally, humidity remains fairly high in both months, with April slightly surpassing September at 74% compared to 71%. For more detailed information about April weather conditions, you can visit Lido di Ostia weather in April.

September and May present unique weather patterns, reflecting a transition in seasons. September typically enjoys warmer temperatures, with averages around 23°C (73°F) and a maximum of 28°C (83°F), compared to May’s cooler average of 18°C (64°F) and similar maximum temperatures. While both months experience precipitation on the same number of days (9), September receives significantly more rainfall at 94 mm (3.7 in), while May has only 54 mm (2.1 in). In terms of humidity, September is slightly less humid at 71%, compared to May's higher 76%, contributing to a different overall feel for each month. For more detailed insights, you can check out Lido di Ostia weather in May.

When comparing the weather in September and June, both months offer similar maximum temperatures, with June reaching around 28°C (84°F) and September peaking at 28°C (83°F). However, September tends to be slightly warmer on average, with temperatures averaging 23°C (73°F) compared to June's 22°C (72°F). One notable difference is in precipitation; September experiences significantly more rainfall, with 94 mm (3.7 in) over 9 days, while June sees only 16 mm (0.6 in) across just 1 day. Humidity levels are comparable, with September at 71% and June at 73%. For more details on June weather, check out Lido di Ostia weather in June.

In comparing the weather of September and July, September tends to be cooler, with average temperatures ranging from a minimum of 14°C (57°F) to a maximum of 28°C (83°F), while July features warmer temperatures, peaking at 29°C (84°F) with an average of 25°C (77°F). Additionally, September experiences significantly more precipitation, with 94 mm (3.7 in) over 9 days, compared to July's much drier conditions, which see only 17 mm (0.7 in) across just 2 days. Humidity levels remain relatively similar between the two months, hovering around 71% in September and 70% in July. For further details, you can check Lido di Ostia weather in July.

In comparing the weather of September and August, September presents a noticeable drop in minimum temperatures, averaging 14°C (57°F) compared to August's warmer 20°C (68°F). While the average temperature in September is 23°C (73°F), which is slightly lower than August’s average of 26°C (78°F), September experiences more frequent precipitation, with 94 mm (3.7 in) over 9 days compared to just 13 mm (0.5 in) in August over a single day. Additionally, the humidity remains relatively high in both months, with September at 71% and August slightly lower at 68%. For a more detailed look at August weather, you can check Lido di Ostia weather in August.

September and October display noticeable shifts in weather patterns. In September, temperatures range from a minimum of 14°C (57°F) to a maximum of 28°C (83°F), with an average of 23°C (73°F). This month experiences 94 mm (3.7 in) of precipitation over 9 days, accompanied by a humidity level of 71%. In contrast, October sees a slight drop in temperatures, with a minimum of 13°C (55°F), an average of 19°C (67°F), and a maximum of 25°C (77°F). Although both months receive similar amounts of rainfall—96 mm (3.8 in) over 10 days in October—the humidity increases to 76%. This transition marks October as a cooler and slightly more humid month compared to September. For more detailed information, check out Lido di Ostia weather in October.

In September, the weather is generally warmer, with average temperatures around 23°C (73°F) and maximums reaching 28°C (83°F). The month experiences moderate precipitation, totaling 94 mm (3.7 in) over about 9 days, and humidity levels are at 71%. In contrast, November sees a significant drop in temperatures, with an average of 16°C (61°F) and maximums of 22°C (72°F). This month also brings increased rainfall, amounting to 210 mm (8.3 in) over 17 days, and higher humidity at 79%. For more detailed information, you can check Lido di Ostia weather in November.

In September, the weather is relatively warm, with average temperatures reaching around 23°C (73°F), and highs of up to 28°C (83°F). This month typically sees about 94 mm (3.7 in) of rainfall over 9 days, combined with a humidity level of 71%. In contrast, December brings a notable drop in temperatures, with averages around 12°C (55°F) and maximums of just 17°C (63°F). The month is also wetter, with precipitation totaling 155 mm (6.1 in) over 14 days and higher humidity at 77%. For a more detailed look at weather patterns during this month, visit Lido di Ostia weather in December.

Compare Lido di Ostia's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Lido di Ostia

As September ushers in the transition from summer to autumn, Lido di Ostia experiences pleasantly mild weather that stands out from the hotter summer months. With average temperatures hovering around a comfortable 23°C (73°F), it offers an inviting respite from the heat, ideal for beach activities and exploring the coastline. However, visitors should be prepared for the occasional rainfall, as the month sees about 9 days of precipitation, contributing to a humidity level of 71%. This blend of warmth and moisture creates a unique atmosphere that differs significantly from the sweltering temperatures of July and August, making September a delightful time to experience the charm of the area. For more detailed insights, check out the Lido di Ostia Climate.