September Weather in Castelluccio, Italy

Last updated: March 24, 2025

In September, Castelluccio, Italy, showcases a delightful climate as summer transitions into autumn. With maximum temperatures reaching 30°C (87°F), visitors can enjoy warm days, while the average temperature settles around a pleasant 19°C (66°F). However, evenings can be cooler, dipping to a minimum of 5°C (41°F). Expect about 78 mm (3.1 in) of precipitation over 10 days, often bringing refreshing rain that nourishes the region’s stunning landscapes. The overall humidity level hovers at 66%, creating an inviting atmosphere for outdoor activities and exploration amidst breathtaking views.

September Temperature in Castelluccio

September in Castelluccio, Italy marks a delightful transition into autumn, with temperatures gradually cooling from the summer heat. During this month, the temperature range spans from a minimum of 5°C (41°F) to a pleasant maximum of 30°C (87°F), offering an average of 19°C (66°F). This shift showcases a marked decrease from the sweltering highs of August, yet still maintains warmth ideal for outdoor adventures. As the landscape begins to take on its autumn hues, visitors can enjoy mild days and crisp evenings, making September a wonderfully diverse month for experiencing the beauty of Castelluccio’s surroundings.

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

The chart illustrates September temperature patterns in Castelluccio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec394346526069737566574941
Data source: Temperature data for Castelluccio 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 Castelluccio

In September, Castelluccio experiences a notable transition in its weather patterns, averaging 78 mm (3.1 in) of precipitation over 10 days. This marks a shift from the drier summer months, with rainfall levels increasing from July's low of 38 mm (1.5 in) and August's slight uptick to 40 mm (1.6 in). The dampness heralds the arrival of autumn, setting the stage for the wetter months ahead. Despite the uptick in precipitation, September's rainfall remains significantly lower than November's peak of 136 mm (5.4 in), suggesting a gradual buildup towards the season's heaviest showers. This early autumn rain not only nourishes the landscape but also enhances Castelluccio's lush scenery, inviting visitors to experience its beauty as it shifts into a new season.

September Precipitation Trends in Castelluccio

The chart displays monthly precipitation patterns in Castelluccio, 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.
JanFebMarAprMayJunJulAugSepOctNovDec57938488985438407893136130
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Castelluccio

In September, Castelluccio experiences a shift in humidity, with levels rising to 66% after the dry summer months. Throughout the year, a clear trend emerges: humidity is highest in the winter months, peaking at 84% in both January and November, while the summer enjoys a drier climate, reaching a low of 55% in August. As autumn sets in, humidity begins to climb again, signaling a return to the more humid conditions characteristic of the colder months. This cyclical pattern not only impacts the weather but also enhances the lush landscapes of Castelluccio, transitioning from summer's arid beauty to autumn's vibrant renewal.

September Average Humidity in Castelluccio

This chart illustrates the average monthly humidity levels in Castelluccio, 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%68%70%69%62%57%55%66%79%84%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Castelluccio

As September settles over Castelluccio, Italy, the UV Index reflects a notable shift in sunlight intensity. With a UV Index of 7, categorized as high, this month marks a decrease from the summer's peak, yet it still calls for caution, especially during midday. The burn time extends back to 25 minutes, allowing for a bit more leeway compared to the scorching summer months. As autumn approaches, the sun begins to soften, but it remains essential to be vigilant about sun exposure. For those planning outdoor activities, checking the details can ensure a safe and enjoyable experience. Discover more about sun safety in Castelluccio with the Castelluccio UV Index.

Maximum UV Index Levels in Castelluccio for September

The chart shows the monthly maximum UV Index (UVI) for Castelluccio 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.
JanFebMarAprMayJunJulAugSepOctNovDec24678101097532
Data source: Castelluccio 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 Castelluccio

As the summer months fade, September in Castelluccio, Italy offers a delightful transition marked by an impressive 338 hours of sunshine. This month follows a peak of 432 hours in July and remains generous compared to the lower totals seen in the winter months. The gradual decline in sunlight from the vibrant July and August highlights the changing season but still provides ample opportunities to bask in the warm embrace of the sun. With the landscape awash in rich autumn colors, visitors can relish the lingering warmth, making September a perfect time to explore the scenic beauty of this charming Italian locale before the cooler days of October set in.

Monthly Sunshine Duration in Castelluccio: September Highlighted

The September sunshine duration represents the total number of hours Castelluccio 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.
JanFebMarAprMayJunJulAugSepOctNovDec182h227h311h343h384h419h432h401h338h302h226h216h
Data source: Castelluccio September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Castelluccio During September

In Castelluccio, Italy, September offers a promising 54% chance of sunny weather, making it a delightful time to visit. As summer wanes, the likelihood of sunshine remains relatively high, continuing the trend seen in the months of July and August, where the sun dazzled more frequently with chances of 62% and 64% respectively. This slight dip to 54% still maintains September's attractiveness for those looking to enjoy outdoor activities amidst stunning landscapes. As the year progresses, the probability of sun diminishes significantly, with October falling to 39%, underscoring September as a sweet spot for sun seekers.

Percentage of Sunny Days in September in Castelluccio

The chart illustrates the percentage of sunny days in Castelluccio 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 Castelluccio experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec27%43%62%43%40%58%62%64%54%40%31%39%
Data source: Castelluccio September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Castelluccio in September

As summer fades into autumn, September in Castelluccio, Italy, offers a delightful transition with approximately 12 hours of daylight. This marks a gentle decline from the sun-drenched days of July and June, when daylight peaks at 15 hours. Following the vibrant months of May and June, where daylight extends more generously, September still boasts a commendable amount of light, allowing visitors to bask in the beauty of the early fall season. The gradual decrease in daylight hints at the impending autumn, setting the stage for the enchanting landscapes to transform with fiery foliage as nature prepares for winter's embrace.

Average Daylight Hours in Castelluccio for September

The chart illustrates the variation in daylight duration in Castelluccio throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 21m10h 30m11h 57m13h 26m14h 42m15h 20m15h13h 53m12h 27m10h 58m9h 40m8h 59m
Data source: Castelluccio daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Castelluccio

As summer transitions to autumn in Castelluccio, Italy, September brings a gentle breath of air, with an average wind speed of 1.7 m/s (4 mph). This marks a subtle decline from the bustling breezes of the earlier months, where May saw a peak at 2.4 m/s (5 mph). The cooling winds of September reflect the calming shift in the landscape as vibrant blossoms give way to the golden hues of autumn. Following a trend seen throughout the summer, the winds remain relatively soft, allowing for serene days filled with the beauty of nature. As the season progresses into October, the wind picks up slightly, hinting at the invigorating chill of impending fall, but September remains a time for quiet contemplation amid Castelluccio's breathtaking scenery.

Average September Wind Speed in Castelluccio

The chart displays monthly wind speed patterns in Castelluccio, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.22.12.22.22.41.62.02.01.7 m/s2.42.31.9
Data source: Castelluccio September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Castelluccio Compares to Other Months

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

In September, temperatures are noticeably warmer, ranging from a minimum of 5°C (41°F) to an average of 19°C (66°F), with highs reaching up to 30°C (87°F). The month brings a moderate amount of rain, with 78 mm (3.1 in) of precipitation over about 10 days and humidity hovering around 66%. In contrast, January experiences chillier conditions, with a minimum temperature of -6°C (21°F) and an average of just 4°C (39°F), peaking at 15°C (59°F). While it is also wet, January receives less rainfall at 57 mm (2.2 in) over 8 days, accompanied by higher humidity levels at 84%. For more information on January weather, you can visit Castelluccio weather in January.

When comparing the weather in September and February, it's clear that these months present stark contrasts. September boasts a much warmer atmosphere with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 30°C (87°F) and an average of 19°C (66°F). It experiences moderate precipitation, totaling 78 mm (3.1 in) over 10 days, accompanied by a comfortable humidity of 66%.

In contrast, February brings colder temperatures, with lows plunging to -14°C (8°F) and an average of 6°C (43°F), while the highs reach only 19°C (67°F). This month sees a higher level of precipitation at 93 mm (3.7 in) over 11 days, alongside increased humidity at 76%. For more details about February weather variations, you can check Castelluccio weather in February.

September and March present contrasting weather patterns. In September, temperatures range from a mild 5°C (41°F) to a warm 30°C (87°F), averaging around 19°C (66°F). The month experiences about 78 mm (3.1 in) of precipitation over 10 days, with humidity levels at 66%. In contrast, March sees a more significant chill, with temperatures dipping as low as -16°C (4°F) and peaking at 22°C (71°F), averaging 8°C (46°F). Precipitation in March climbs slightly higher to 84 mm (3.3 in) over 9 days, accompanied by a humidity level of 68%. For a detailed look at March weather in a specific region, visit Castelluccio weather in March.

When comparing the weather in September and April, the differences are quite apparent. September typically boasts higher temperatures, with a minimum of 5°C (41°F) and an average of 19°C (66°F), peaking at a maximum of 30°C (87°F). In contrast, April starts cooler, with minimum temperatures dropping to -3°C (27°F) and an average of 11°C (53°F), reaching a maximum of 24°C (76°F). Both months experience substantial precipitation, with September receiving around 78 mm (3.1 in) over 10 days, while April has slightly higher precipitation at 88 mm (3.5 in) across 12 days. Humidity levels are comparable, with September at 66% and April slightly higher at 70%. For more detailed insights on April weather, you can refer to Castelluccio weather in April.

In September, the temperatures range from a minimum of 5°C (41°F) to a maximum of 30°C (87°F), with an average of 19°C (66°F), making it generally warmer than May, which sees a minimum of 3°C (38°F) and a maximum of 29°C (84°F) with an average temperature of 15°C (60°F). Precipitation is slightly lower in September, totaling 78 mm (3.1 in) over about 10 days, compared to May's 98 mm (3.9 in) spread across 17 days. Humidity levels are comparable, with September at 66% and May slightly higher at 69%. For a detailed look at May weather in a charming Italian locale, visit Castelluccio weather in May.

September and June offer distinct weather experiences. In September, temperatures range from a cool minimum of 5°C (41°F) to a warm average of 19°C (66°F), peaking at 30°C (87°F), with higher precipitation of 78 mm (3.1 in) over about 10 days and a humidity level of 66%. In contrast, June boasts slightly warmer temperatures with a minimum of 8°C (46°F) and an average of 21°C (69°F), peaking at 35°C (95°F), while experiencing less precipitation at 53 mm (2.1 in) over 8 days and a slightly lower humidity of 62%. For a closer look at June weather specifics, check out Castelluccio weather in June.

In comparing the weather between September and July, we can observe distinct differences in temperature and precipitation patterns. September features cooler temperatures with an average of 19°C (66°F) and a maximum of 30°C (87°F), while July boasts a warmer average of 23°C (74°F) and peaks at 35°C (96°F). Additionally, September experiences more frequent rain, with precipitation occurring over 10 days and totaling 78 mm (3.1 in), compared to July's lighter rainfall of 38 mm (1.5 in) over just 5 days. Humidity levels are also higher in September at 66%, contrasted with July's 57%. For a detailed look at July weather in the region, you can visit Castelluccio weather in July.

In comparing the weather of September and August, September experiences cooler temperatures with a minimum of 5°C (41°F) and an average of 19°C (66°F), while August is significantly warmer, having a minimum of 11°C (52°F) and an average of 24°C (75°F). Furthermore, August boasts maximum temperatures reaching 36°C (96°F), in stark contrast to September’s peak of 30°C (87°F). Precipitation is more frequent in September, with 78 mm (3.1 in) falling over 10 days, compared to August's lighter rainfall of 40 mm (1.6 in) over just 7 days. Additionally, September has higher humidity levels at 66%, compared to August's 55%. For more details on August conditions, check out Castelluccio weather in August.

In comparing the weather of September and October, we see a notable shift in temperatures and humidity levels. September boasts a wider temperature range, with minimums reaching 5°C (41°F) and maximums soaring up to 30°C (87°F), accompanied by moderate precipitation of 78 mm (3.1 in) over about 10 days. In contrast, October brings cooler conditions, as the temperatures drop to a minimum of 3°C (38°F) and an average high of 26°C (78°F). Additionally, October experiences slightly higher precipitation at 93 mm (3.7 in) despite having one less rainy day than September. The humidity also increases from 66% in September to 79% in October, creating a more damp atmosphere. For a detailed look at October weather patterns, you can visit Castelluccio weather in October.

September and November present notably different weather patterns. September enjoys milder temperatures, with an average of 19°C (66°F) and highs reaching up to 30°C (87°F), while November cools down significantly to an average of 10°C (50°F), with maximum temperatures only reaching 18°C (65°F). Additionally, November sees increased precipitation, totaling 136 mm (5.4 in) over 13 days, compared to September's 78 mm (3.1 in) over 10 days. The humidity also rises from 66% in September to 84% in November, contributing to a feeling of greater chill in the air. For more detailed insights on November weather, you can visit Castelluccio weather in November.

In September, the weather is generally warm, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 30°C (87°F) and an average of 19°C (66°F). The month experiences moderate rainfall, totaling 78 mm (3.1 in) over approximately 10 days and a humidity level of 66%. In contrast, December brings a significant drop in temperature, with the minimum dipping to -5°C (24°F) and an average of only 5°C (42°F), peaking at 15°C (59°F). This month is also wetter, with 130 mm (5.1 in) of precipitation spread over 13 days, and a higher humidity of 83%. For more detailed information, you can check Castelluccio weather in December.

Compare Castelluccio's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Castelluccio

As summer gives way to autumn, September in Castelluccio brings a refreshing change in weather that sets it apart from the sweltering heat of July and August. With average temperatures that comfortably hover around a moderate 19°C, the days are still warm, yet they're tempered by cooler evenings that dip down to 5°C. Unlike the dry summer months, September sees a modest increase in precipitation, with about 78 mm of rain over roughly 10 days, contributing to the lush landscapes that characterize this time of year. The humidity stays at a balanced 66%, enhancing the crispness of the air. This transitional month makes for a perfect time to explore the stunning scenery of Castelluccio. For more insights on weather patterns throughout the year, check out Castelluccio Climate.