September Weather in Spello, Italy

Last updated: March 24, 2025

In September, Spello, Italy, experiences a delightful blend of warm days and cool evenings. With maximum temperatures reaching 31°C (88°F), the days are ideal for exploring the picturesque streets and vibrant landscapes. The average temperature hovers around a comfortable 18°C (65°F), while the nights can dip to a refreshing 5°C (42°F). Rainfall is relatively modest, with 76 mm (3.0 in) spread over about 8 days, providing a gentle touch to the lush surroundings. The humidity remains around 67%, creating a pleasant atmosphere for visitors to enjoy the rich culture and stunning vistas of this enchanting town.

September Temperature in Spello

September in Spello, Italy, offers a delightful transition into autumn, with temperatures reflecting a comfortable and inviting climate. Minimums hover around a mild 5°C (42°F), while averages settle at a pleasant 18°C (65°F), perfect for exploring the charming streets and scenic vistas. The days can warm up significantly, reaching a maximum of 31°C (88°F), providing ample opportunity for outdoor activities. Compared to the sweltering summer months, September's temperatures create a refreshing atmosphere where visitors can enjoy the beauty of the surrounding countryside without the harsh heat. As the month progresses, the gradual decrease in temperature hints at the upcoming fall, allowing for an enjoyable blend of sunny days and cooler evenings, ideal for savoring local cuisine and wine under the stars.

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

The chart illustrates September temperature patterns in Spello, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec384345515969747565574941
Data source: Temperature data for Spello 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 Spello

September in Spello, Italy, marks a significant transition in weather patterns as summer gives way to autumn. With 76 mm (3.0 in) of rainfall over approximately 8 days, this month experiences a notable uptick in precipitation compared to the drier summer months of July and August. The increase in moisture reflects the approach of autumn, which typically brings more consistent rainfall, as suggested by the subsequent rise to 104 mm (4.1 in) in November. This trend underscores a shift towards a wetter climate, setting the stage for the lush landscapes that define Spello in the coming months. Even as September may still hold onto the warmth of summer, its precipitation levels remind us of nature’s cyclical rhythms.

September Precipitation Trends in Spello

The chart displays monthly precipitation patterns in Spello, 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.
JanFebMarAprMayJunJulAugSepOctNovDec55678166893932417654104115
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Spello

In September, Spello, Italy experiences a noticeable shift in humidity, rising to 67% after the drier summer months of July and August, which see lows of 59% and 54%, respectively. This increase marks the transition into the autumn season, as humidity levels begin to climb toward the higher ranges typical of later months. Throughout the year, humidity remains relatively high in winter, peaking at 86% in December. However, as the sunny days of summer wane, September offers a pleasant balance, allowing visitors to enjoy the beauty of this enchanting town amid mildly refreshing conditions. This trend highlights Spello's character as a place where each season brings its own unique ambiance, inviting exploration and discovery.

September Average Humidity in Spello

This chart illustrates the average monthly humidity levels in Spello, 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.
JanFebMarAprMayJunJulAugSepOctNovDec85%78%69%71%71%63%59%54%67%79%84%86%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Spello

In September, Spello, Italy experiences a UV Index of 7, placing it in the high exposure category. This marks a slight decline from the peak summer months, where the UV Index soared to 10 during June and July, underscoring the need for caution with sun exposure. With a burn time of 25 minutes this month, outdoor enthusiasts should remain vigilant in applying sunscreen, especially during midday hours. As the season transitions into autumn, it is essential to adapt sun protection practices; however, lingering summer intensity can still pose risks. For more detailed insights on UV levels throughout the year, check out Spello UV Index.

Maximum UV Index Levels in Spello for September

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

As summer gracefully transitions into early autumn, September brings a delightful blend of warmth and sunshine to Spello, Italy. With 333 hours of sunlight, the month sits comfortably between the sun-drenched heights of July and August—where sunshine peaked at 430 and 399 hours, respectively. This subtle decline heralds the approach of cooler days while still offering plenty of opportunities for outdoor explorations amidst the stunning backdrop of this medieval town. As daylight hours shorten, September invites visitors to savor the last golden rays of summer, making it an ideal time to enjoy leisurely strolls through Spello's charming streets or to indulge in its renowned culinary offerings, all under a sky that still holds onto the warmth of the season.

Monthly Sunshine Duration in Spello: September Highlighted

The September sunshine duration represents the total number of hours Spello 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.
JanFebMarAprMayJunJulAugSepOctNovDec178h233h311h348h390h417h430h399h333h302h224h218h
Data source: Spello September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Spello During September

In September, Spello, Italy, enjoys a lovely 56% chance of sunny weather, making it a delightful time to visit. This month marks a transition as summer slowly gives way to autumn, with sunshine probabilities still comfortably above the seasonal average. It follows the peak of summer, where July and August bask in a remarkable 63% and 69% sunlight, respectively. As temperatures begin to mellow, the likelihood of clear skies in September remains a pleasant contrast to the chillier months ahead, such as October with its 38% chance of sunshine. Overall, if you're planning a trip to this picturesque town, you can anticipate a healthy dose of sun along with the stunning fall foliage.

Percentage of Sunny Days in September in Spello

The chart illustrates the percentage of sunny days in Spello 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 Spello experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec30%52%62%45%45%61%63%69%56%38%25%41%
Data source: Spello September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Spello in September

In September, Spello, Italy, enjoys a delightful 12 hours of daylight, marking a subtle transition as summer begins to fade. The month stands as a bridge between the sun-drenched days of June and July, which boast the year's longest daylight, and the shorter, cozy days of fall. As the daylight gradually decreases from the peak summer hours, September offers a balanced blend of warmth and light, making it an ideal time for outdoor exploration and enjoying the beautiful scenery. This smooth ebb in daylight not only signals the changing seasons but also invites residents and visitors alike to savor the lingering warmth before autumn sets in fully.

Average Daylight Hours in Spello for September

The chart illustrates the variation in daylight duration in Spello throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 24m10h 31m11h 57m13h 24m14h 39m15h 16m14h 56m13h 50m12h 26m10h 59m9h 43m9h 3m
Data source: Spello daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Spello

As September unfolds in Spello, Italy, the gentle whispers of the wind begin to make their presence known, with an average speed of just 1.9 m/s (4 mph). This marks a notable dip compared to the summer months, reflecting a transition into the milder autumn breeze. While the wind remains a constant companion throughout the year, its softening in September sets a serene atmosphere, inviting locals and visitors alike to stroll through the picturesque streets adorned with vibrant foliage. The year has seen the wind at its most spirited during late spring, where average speeds reach 2.8 m/s (6 mph), yet as the days grow shorter and cooler, the softening breeze hints at the embrace of fall in this charming historic town.

Average September Wind Speed in Spello

The chart displays monthly wind speed patterns in Spello, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.52.32.52.42.82.02.42.31.9 m/s2.52.32.4
Data source: Spello September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Spello Compares to Other Months

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

In September, temperatures are generally mild, ranging from a minimum of 5°C (42°F) to a maximum of 31°C (88°F), with an average of 18°C (65°F). The month sees a moderate amount of precipitation at 76 mm (3.0 in) over about 8 days, accompanied by a humidity level of 67%. In contrast, January experiences much colder conditions, with temperatures dropping as low as -9°C (16°F) and only reaching a maximum of 15°C (59°F), resulting in an average of 3°C (39°F). Although it receives less precipitation at 54 mm (2.1 in) spread over 9 days, the humidity during January is notably higher at 85%. For more details on January weather, visit Spello weather in January.

September weather presents a warm and pleasant transition from summer, with average temperatures ranging from a mild 18°C (65°F) to a maximum of 31°C (88°F), alongside occasional rainfall totaling 76 mm (3.0 in) over about 8 days. In contrast, February brings much colder conditions, with temperatures dropping to a minimum of -14°C (7°F) and an average of just 6°C (43°F), while experiencing slightly less precipitation at 67 mm (2.6 in) over 9 days. The humidity in February is also higher at 78%, compared to September's 67%, adding to the winter chill. For those seeking detailed information, you can check Spello weather in February.

September and March present distinctly different weather patterns. September boasts warmer temperatures, with averages reaching 18°C (65°F) and maximums soaring to 31°C (88°F), making it a month ideal for outdoor activities. In contrast, March experiences much cooler conditions, featuring an average temperature of only 7°C (45°F) and minimums that can plummet to -18°C (0°F). Despite both months receiving similar amounts of precipitation—76 mm (3.0 in) in September and 80 mm (3.2 in) in March—March tends to exhibit slightly higher humidity (69% compared to September's 67%). For more detailed information, you can check Spello weather in March.

When comparing the weather between September and April, notable differences emerge. September boasts a warmer temperature range, with a minimum of 5°C (42°F), an average of 18°C (65°F), and a maximum of 31°C (88°F). It typically experiences 76 mm (3.0 in) of precipitation over about 8 days, accompanied by a humidity level of 67%. In contrast, April is considerably cooler, seeing temperatures dip to a minimum of -4°C (25°F), an average of 11°C (52°F), and a maximum of 24°C (75°F). Although April has slightly less precipitation at 66 mm (2.6 in) over approximately 10 days, it also experiences higher humidity at 71%. For more detailed information, check out Spello weather in April.

September typically boasts warmer temperatures compared to May, with average highs reaching 31°C (88°F) against May's peak of 29°C (84°F). However, May experiences cooler minimum temperatures, dipping as low as 1°C (35°F), while September sees a minimum of 5°C (42°F). Both months have notable humidity levels, with May slightly higher at 71% compared to September's 67%. Rainfall is more prevalent in May, with 89 mm (3.5 in) across 14 days, unlike September's 76 mm (3.0 in) over just 8 days. For more details on May weather, check Spello weather in May.

In comparing the weather between September and June, we see some notable differences. September features a wider temperature range, with minimums dipping to 5°C (42°F) and maximums reaching up to 31°C (88°F), while June has a more moderate range, starting at a minimum of 6°C (44°F) and a maximum of 34°C (93°F). The average temperature in June is slightly higher at 20°C (69°F) compared to September's 18°C (65°F). Additionally, September tends to be wetter, with 76 mm (3.0 in) of precipitation over 8 days, while June is drier with only 39 mm (1.5 in) of rain over 6 days. Humidity levels are also marginally higher in September at 67%, compared to June's 63%. For those interested in more details, you can explore Spello weather in June.

In comparing September and July weather, September tends to be milder with average temperatures ranging from a minimum of 5°C (42°F) to a maximum of 31°C (88°F), while July features warmer conditions, with temperatures varying from a minimum of 12°C (53°F) to a peak of 35°C (96°F). Precipitation is notably higher in September, receiving 76 mm (3.0 in) over 8 days compared to July's 32 mm (1.3 in) on just 5 days. Additionally, September has a higher humidity level at 67%, compared to July's 59%. For a more detailed look at July weather in Spello, you can check Spello weather in July.

In comparing the weather between September and August, September experiences cooler temperatures, with a minimum of 5°C (42°F) and an average of 18°C (65°F), significantly lower than August's minimum of 9°C (49°F) and average of 24°C (75°F). August sees hotter maximum temperatures peaking at 37°C (99°F) compared to September's high of 31°C (88°F). Additionally, September has a higher precipitation total of 76 mm (3.0 in) over the same number of rainy days as August, which recorded only 41 mm (1.6 in) of rain. Humidity levels also differ, with September averaging 67%, while August has a lower humidity at 54%. For more detailed information on August weather, you can visit Spello weather in August.

September typically showcases warmer temperatures, with a minimum of 5°C (42°F) and a maximum reaching up to 31°C (88°F), offering a pleasant average of 18°C (65°F). The month experiences more precipitation, totaling 76 mm (3.0 in) across about 8 days, while humidity levels are around 67%. In contrast, October brings cooler weather, with temperatures ranging from a minimum of 4°C (39°F) to a maximum of 25°C (78°F), averaging 14°C (57°F). This month also sees a decrease in precipitation to 54 mm (2.1 in) over approximately 7 days, although humidity rises slightly to 78%. For a closer look at October's weather in Spello, you can visit Spello weather in October.

September and November weather present a stark contrast, characterized by changing temperatures and increased precipitation. In September, temperatures range from a mild 5°C (42°F) at night to a warm average of 18°C (65°F) during the day, peaking at a maximum of 31°C (88°F). The month experiences relatively moderate rainfall of 76 mm (3.0 in) spread over 8 days, with humidity averaging 67%.

In contrast, November sees a significant drop in temperatures, with nighttime lows dipping to -3°C (27°F) and an average daily temperature of 10°C (49°F), while the maximum only reaches 18°C (65°F). This month also brings increased precipitation, totaling 104 mm (4.1 in) over 13 days, making the air feel considerably more humid at 84%. For a closer look at November weather patterns, you can check Spello weather in November.

In comparing the weather of September and December, notable contrasts emerge. September experiences a range of temperatures, with lows around 5°C (42°F) and highs reaching up to 31°C (88°F), resulting in a comfortable average of 18°C (65°F). The month has a moderate level of precipitation at 76 mm (3.0 in) spread over 8 days, coupled with a humidity level of 67%. In contrast, December ushers in cooler conditions, where temperatures dip significantly, with a minimum of -6°C (22°F) and a maximum of 15°C (59°F), leading to an average temperature of just 5°C (42°F). The month also sees increased precipitation totaling 115 mm (4.5 in) over 11 days, alongside a rise in humidity to 86%. For a more detailed look at the December weather patterns, you can refer to Spello weather in December.

Compare Spello's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Spello

As summer bids farewell, September in Spello ushers in a delightful transition characterized by mild temperatures and a touch of crispness in the air. With daily highs reaching a comfortable 31°C (88°F) and cooler evenings averaging around 18°C (65°F), it’s the perfect time for outdoor adventures. Though the month does see an increase in precipitation, with about 76 mm (3.0 in) over a handful of days, the humidity remains manageable at 67%, allowing for pleasant exploration of the charming streets and scenic landscapes. Whether you're wandering through vineyards or enjoying the local cuisine, September offers a unique allure that distinguishes it from the scorching heat of its summer predecessor. For a deeper dive into what to expect throughout the year, check out Spello Climate.