September Weather in Castiglione del Lago, Italy

Last updated: March 24, 2025

September in Castiglione del Lago, Italy, experiences a delightful blend of warmth and tranquility. With maximum temperatures reaching 32°C (90°F) and an average of 20°C (68°F), the days are pleasantly warm, inviting outdoor exploration. However, the evenings cool down to a minimum of 8°C (47°F), perfect for cozy gatherings. This month records a total precipitation of 92 mm (3.6 in) across 9 days, contributing to the region's lush landscapes, while the humidity level hovers around 66%, creating a refreshing atmosphere. Whether you're wandering through historic streets or relaxing by the lake, September offers a picturesque retreat in this charming Italian town.

September Temperature in Castiglione del Lago

In September, Castiglione del Lago experiences a delightful transition as summer gently gives way to fall. With minimum temperatures around 8°C (47°F) and average highs reaching 32°C (90°F), the weather remains pleasantly warm, perfect for outdoor activities. This month strikes a balance, averaging 20°C (68°F), making it an ideal time to explore the region’s stunning landscapes and enjoy leisurely moments by the lake. As the summer heat begins to taper off, visitors can relish in the more moderate climate, while still enjoying many sunny days, creating an ideal backdrop for both relaxation and adventure.

September Weather in Castiglione del Lago: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Castiglione del Lago, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec414548546271767768595144
Data source: Temperature data for Castiglione del Lago 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 Castiglione del Lago

In September, Castiglione del Lago experiences a noteworthy increase in precipitation, with an average of 92 mm (3.6 in), making it one of the wettest months of the year. As summer transitions to autumn, the number of rainy days also rises to 9, reflecting a shift in weather patterns. This uptick contrasts with the drier months of July and August, which see significantly lower precipitation levels at 40 mm (1.6 in) and 49 mm (1.9 in), respectively. The arrival of September not only enhances the lush landscape but also signals the start of the fall season, bringing a refreshing burst of moisture that nurtures the rich agricultural heritage of the region.

September Precipitation Trends in Castiglione del Lago

The chart displays monthly precipitation patterns in Castiglione del Lago, 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.
JanFebMarAprMayJunJulAugSepOctNovDec53697178864840499291134109
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Castiglione del Lago

In September, Castiglione del Lago experiences a noticeable shift in humidity, measuring at 66%. This marks a gradual increase from the drier summer months of July and August, which recorded 57% and 55% respectively. As autumn approaches, humidity levels rise, hinting at a transition back to the wetter conditions typical of earlier months. While September's humidity is lower than the winter peaks of January's 84%, it still reflects a significant change from the summer's refreshing dryness, evoking a sense of seasonal shift in this charming Italian locale.

September Average Humidity in Castiglione del Lago

This chart illustrates the average monthly humidity levels in Castiglione del Lago, 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 Castiglione del Lago

September in Castiglione del Lago, Italy, marks a transitional period in the UV Index, dipping to 7 with a high exposure category. As summer recedes, locals and visitors alike can enjoy 25 minutes of sun before risking burns, a notable increase in time compared to the peak months of July and August, where the UV Index soared to 10. This shift reflects a gradual easing of intensity, yet caution remains essential as the month progresses. Observing these trends can help in planning activities that balance sun exposure with the thriving beauty of autumn in the area. For detailed monthly updates, visit Castiglione del Lago UV Index.

Maximum UV Index Levels in Castiglione del Lago for September

The chart shows the monthly maximum UV Index (UVI) for Castiglione del Lago 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.
JanFebMarAprMayJunJulAugSepOctNovDec24679101097532
Data source: Castiglione del Lago 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 Castiglione del Lago

As summer gracefully transitions to autumn, September in Castiglione del Lago, Italy, offers a delightful balance of warm sunshine and mild temperatures. With 335 hours of sunlight, the month reflects a gradual decline from the peak hours of July, which sees an impressive 432 hours. This pattern showcases the region's seasonal rhythm, where vibrant sunshine in the summer starts to wane, yet September retains a luminosity that enchants visitors. The soft glow of these early autumn days invites leisurely strolls by the lake and picturesque vineyard visits, making it an ideal time to savor the last echoes of summer’s warmth. As September unfolds, it’s clear that while the sun may not shine as brightly as in July, it still casts a golden hue over the beautiful landscapes, encouraging visitors to bask in the tranquil charm of this idyllic destination.

Monthly Sunshine Duration in Castiglione del Lago: September Highlighted

The September sunshine duration represents the total number of hours Castiglione del Lago 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.
JanFebMarAprMayJunJulAugSepOctNovDec182h230h310h343h387h418h432h401h335h304h231h219h
Data source: Castiglione del Lago September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Castiglione del Lago During September

September in Castiglione del Lago, Italy, offers a promising 53% chance of sunny weather, marking it as a favorable time for outdoor activities as summer winds down. This month follows a trend of increasing sun exposure, peaking in the warmer months of July and August, which see chances of sunshine soar to 63% and 64%, respectively. While September's likelihood of sun slightly dips compared to its summer peak, it remains significantly higher than the chilly winter months, where the sun barely breaks through. As autumn approaches, visitors can enjoy a pleasant blend of warm days and cooler evenings, making September an inviting time to experience the charming landscapes of this picturesque region.

Percentage of Sunny Days in September in Castiglione del Lago

The chart illustrates the percentage of sunny days in Castiglione del Lago 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 Castiglione del Lago experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec30%46%60%43%42%60%63%65%53%39%28%42%
Data source: Castiglione del Lago September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Castiglione del Lago in September

As summer gives way to autumn in Castiglione del Lago, Italy, September experiences a gentle decrease in daylight, offering 12 hours of sunlight—a delightful balance after the sunlit peaks of July and June. Following a gradual increase from 9 hours in January to a summer high of 15 hours, daylight begins its descent as the evenings grow longer. This transition reflects nature's rhythm, inviting residents and visitors alike to savor the lingering warmth of early fall before the days shorten further into October's 10 hours. The gradual shift not only marks the change in seasons but also enhances the charm of the region, creating picturesque moments as daylight dances across the serene waters of Lake Trasimeno.

Average Daylight Hours in Castiglione del Lago for September

The chart illustrates the variation in daylight duration in Castiglione del Lago throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 23m10h 31m11h 57m13h 25m14h 40m15h 18m14h 58m13h 51m12h 27m10h 59m9h 42m9h 2m
Data source: Castiglione del Lago daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Castiglione del Lago

As summer transitions to fall, September in Castiglione del Lago brings a gentle shift in the air, with an average wind speed of 2.0 m/s (4 mph). This marks a noticeable decrease from the more blustery summer months, where winds maintained a steady 2.4 to 2.7 m/s. Residents and visitors alike can enjoy the serene ambiance as the winds lull, making way for idyllic strolls along the lakeside and leisurely outdoor activities. Interestingly, October sees a resurgence in breezy conditions, reminding us that the vibrant winds of autumn are just around the corner. This ebb and flow of wind patterns not only define the climate but also enrich the enchanting atmosphere of this Italian gem.

Average September Wind Speed in Castiglione del Lago

The chart displays monthly wind speed patterns in Castiglione del Lago, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.82.42.62.62.71.82.42.22.0 m/s2.82.52.4
Data source: Castiglione del Lago September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Castiglione del Lago Compares to Other Months

The weather in Castiglione del Lago 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 Castiglione del Lago and find detailed weather information for every month.

September and January present contrasting weather conditions. In September, temperatures range from a mild 8°C (47°F) at night to a warm average of 20°C (68°F) and a maximum of 32°C (90°F) during the day, accompanied by 92 mm (3.6 in) of rainfall over 9 days and a humidity level of 66%. On the other hand, January showcases colder temperatures with a minimum of -5°C (23°F), an average of 5°C (41°F), and a maximum of 15°C (59°F). This month sees less precipitation at 53 mm (2.1 in) spread over 7 days, alongside higher humidity at 84%. For a detailed look at January weather, you can visit Castiglione del Lago weather in January.

September and February present a stark contrast in weather patterns. In September, temperatures range from a mild 8°C (47°F) at night to a warm 32°C (90°F) during the day, averaging around 20°C (68°F). The month typically sees 92 mm (3.6 in) of precipitation over 9 days, with a humidity level of 66%. In contrast, February experiences much colder temperatures, with a minimum of -8°C (18°F) and a maximum of 19°C (66°F), resulting in an average of just 7°C (45°F). Precipitation is lower at 69 mm (2.7 in) over 7 days, but humidity rises to 76%. For more detailed insights about February weather, you can check Castiglione del Lago weather in February.

September and March offer contrasting weather experiences. In September, temperatures are generally mild to warm, with averages around 20°C (68°F) and highs peaking at 32°C (90°F). The month sees an average of 92 mm (3.6 in) of precipitation over 9 days, and humidity levels hover around 66%. In contrast, March brings cooler temperatures, with lows plunging to -10°C (15°F) and an average of only 9°C (48°F), although it can still reach up to 21°C (70°F). Precipitation is slightly less in March, totaling 71 mm (2.8 in) also over 9 days, but the humidity is a bit higher at 68%. For more detailed information on March weather, check out Castiglione del Lago weather in March.

When comparing the weather between September and April, some distinct differences emerge. September boasts warmer temperatures, with averages around 20°C (68°F) and highs reaching up to 32°C (90°F), making it a rather pleasant month. In contrast, April experiences cooler averages of 12°C (54°F), with maximum temperatures capping at 26°C (79°F). Precipitation levels are somewhat comparable, with September receiving 92 mm (3.6 in) across 9 days and April slightly lower at 78 mm (3.1 in) over 10 days. Both months maintain a relatively high humidity level, with September at 66% and April slightly higher at 70%. For more detailed insights, visit Castiglione del Lago weather in April.

When comparing the weather in September and May, we see notable differences in temperature and rainfall patterns. September generally enjoys warmer temperatures, with averages around 20°C (68°F) and highs reaching up to 32°C (90°F), while May has cooler averages of 16°C (62°F) and max temperatures of 30°C (86°F). Additionally, September experiences slightly more precipitation, accumulating about 92 mm (3.6 in) over 9 days, compared to May's 86 mm (3.4 in) over a longer period of 14 days. Humidity levels are fairly similar, with September at 66% and May slightly higher at 69%. For a closer look at May weather specifics, you can visit Castiglione del Lago weather in May.

When comparing the weather in September to that of June, several key differences emerge. September typically experiences a wider range of temperatures, with a minimum of 8°C (47°F) and a maximum reaching 32°C (90°F), while June generally starts warmer, with temperatures ranging from a minimum of 10°C (51°F) to a maximum of 35°C (95°F). Additionally, September receives more precipitation, averaging 92 mm (3.6 in) over about 9 days, compared to June's 48 mm (1.9 in) spread across just 6 days. Humidity levels are also slightly higher in September at 66%, compared to June's 62%. For more detailed insights into June's weather, you can check Castiglione del Lago weather in June.

In comparing the weather of July and September, there is a noticeable shift in temperature and precipitation. July boasts warmer temperatures, with an average of 24°C (76°F) and highs reaching up to 35°C (96°F). In contrast, September sees a more moderate average of 20°C (68°F), with maximum temperatures peaking at 32°C (90°F). Additionally, July experiences less rainfall, with only 40 mm (1.6 in) over 5 days, while September has significantly more precipitation at 92 mm (3.6 in) over 9 days. The humidity levels also differ, with July being less humid at 57%, compared to September's 66%. For more details on July weather, you can check out Castiglione del Lago weather in July.

In comparing the weather between August and September, it's evident that August tends to be warmer and drier. With minimum temperatures of 13°C (56°F) and maximums reaching up to 38°C (101°F), August boasts a higher average of 25°C (77°F) and lower humidity at 55%. In contrast, September cools down significantly, featuring a minimum temperature of 8°C (47°F) and an average temperature of 20°C (68°F), with maximums that can still reach 32°C (90°F). Additionally, September experiences more precipitation, totaling 92 mm (3.6 in) over 9 days, compared to August's 49 mm (1.9 in) over just 6 days. For a more detailed look into August's weather, you can check out Castiglione del Lago weather in August.

September and October exhibit notable differences in weather patterns. September boasts warmer temperatures, with a minimum of 8°C (47°F) and a maximum of 32°C (90°F), resulting in an average of 20°C (68°F). In contrast, October sees cooler temperatures, ranging from a minimum of 6°C (43°F) to a maximum of 26°C (79°F), with an average temperature of just 15°C (59°F). While both months experience similar precipitation levels at 91-92 mm (3.6 in) and rain over 9 days, October is marked by higher humidity at 79%, compared to September's 66%. For a detailed look at October weather in this region, you can visit Castiglione del Lago weather in October.

In September, the weather is generally warmer, with temperatures ranging from a mild 8°C (47°F) to a high of 32°C (90°F) and an average of 20°C (68°F). This month sees about 92 mm (3.6 in) of precipitation over approximately 9 days, along with a moderate humidity level of 66%. In contrast, November brings a noticeable drop in temperatures, where the minimum can dip to 0°C (33°F) and the maximum reaches only 19°C (66°F), averaging around 11°C (52°F). The rainfall increases in November, with about 134 mm (5.3 in) spread over 14 days and humidity rising to 84%. For more detailed information on the weather in this month, you can visit Castiglione del Lago weather in November.

When comparing the weather in September and December, there is a noticeable shift in temperature and conditions. September features a warm average temperature of 20°C (68°F), with daytime highs reaching up to 32°C (90°F), making it a pleasant month for outdoor activities. In contrast, December brings a much cooler average of 7°C (44°F), with temperatures dipping as low as -4°C (25°F). Additionally, while September experiences about 92 mm (3.6 in) of rainfall over 9 days, December sees slightly more precipitation at 109 mm (4.3 in) spread over 11 days. The humidity also increases from 66% in September to 83% in December, contributing to a chillier atmosphere. For more detailed insights, you can check Castiglione del Lago weather in December.

Compare Castiglione del Lago's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Castiglione del Lago

As September sweeps into Castiglione del Lago, it heralds a transition that sets it apart from the sultry summer months, inviting a more temperate atmosphere. With maximum temperatures still reaching a warm 32°C (90°F), the averages cool to a comfortable 20°C (68°F), offering a pleasant reprieve for outdoor enthusiasts. The increase in precipitation, marked by 9 rainy days, contributes to a refreshing change in the landscape, invigorating nature's palette as autumn approaches. The humidity, standing at 66%, creates a softer, more breathable environment, making September an ideal time for visitors to explore this vibrant region. Discover more about the unique patterns of seasonal weather in this stunning location by checking out the full details at Castiglione del Lago Climate.