Last updated: March 24, 2025
Experience the enchanting September weather in Cortona, Italy, where warm days invite exploration and cooler evenings beckon relaxation. With maximum temperatures reaching 32°C (90°F) and a pleasant average of 20°C (68°F), the climate is perfect for enjoying the charming streets and breathtaking views. However, as nature prepares for autumn, visitors should be aware of 82 mm (3.2 in) of rainfall spread over 9 days, contributing to a refreshing atmosphere. The humidity sits at a comfortable 66%, making it an ideal time to experience the beauty of this Tuscan gem.
September in Cortona, Italy, marks a delightful transition as summer begins to wane. With temperatures ranging from a minimum of 8°C (47°F) to a peak of 32°C (90°F), the month offers a perfect blend of warmth and mildness. The average temperature settles at a comfortable 20°C (68°F), ensuring pleasant days for exploration and outdoor dining. Unlike the sweltering heights of July and August, September's climate invites visitors to enjoy the stunning Tuscan landscapes without the intense heat. As the days gradually shorten, the crispness in the air heralds the approach of autumn, making it an ideal time for experiencing Cortona's rich culture and vibrant scenery.
In September, Cortona experiences a noticeable increase in precipitation, with rainfall measuring 82 mm (3.2 in) across approximately 9 days. This transition marks a significant shift from the drier summer months, where July and August see much lower totals of 32 mm (1.3 in) and 46 mm (1.8 in), respectively. The uptick in rainfall not only signals the onset of autumn but also revitalizes the landscape, preparing it for the lush colors of the season to come. With precipitation levels rising as the month progresses, the weather begins to cool, hinting at the more significant rainfalls seen in the upcoming months of October and November, where averages climb to 90 mm (3.6 in) and 124 mm (4.9 in), respectively. This pattern reflects a gradual transition from the warm, dry summer into the wetter fall, creating a dynamic climate that helps shape Cortona's picturesque scenery.
In Cortona, Italy, September marks a transition in humidity levels as summer wanes. With an average humidity of 66%, the month shows a noticeable increase from the drier summer months of July and August, which recorded their lowest levels at 57% and 55%, respectively. This modest rise indicates the onset of autumn, as the air begins to feel a bit more humid leading into October, where humidity surges to 79%. Overall, Cortona's humidity generally fluctuates throughout the year, peaking in the winter months of January and November at 84%, while the summer months maintain lower levels that provide a pleasant respite. The dynamic shifts in humidity throughout the seasons reveal Cortona's unique climate, making it a charming destination year-round.
As we transition into September in Cortona, Italy, the UV Index begins to shift, reflecting the waning summer sun. With a UV Index of 7, categorized under high exposure, locals and visitors alike should be mindful, as the burn time is approximately 25 minutes. This marks a slight decrease from the peak summer months, where UV levels reached a maximum of 10 in both June and July, prompting urgent sun safety measures. Nevertheless, September still requires caution, paralleling the high levels of April and March. As you enjoy the beautiful early autumn days, it's essential to stay protected. For more details on the UV levels throughout the year, visit Cortona UV Index.
UV Risk Categories
As summer transitions into fall, September in Cortona, Italy offers a delightful blend of warmth and sunshine, boasting 335 hours of glorious sunlight. This month marks a subtle decline from the peak of July's 432 hours, yet it remains significantly brighter than the earlier months of January and February. With daylight diminishing but still abundant, September entices visitors with comfortable temperatures and golden hues that illuminate the charming Tuscan landscape. The gradual decrease in sunshine hours reflects a shift towards autumn, yet the lingering warmth invites exploration and enjoyment of the stunning vistas and rich cultural experiences Cortona has to offer.
In Cortona, Italy, the likelihood of sunny weather in September stands at a promising 53%, marking a pleasant transition as summer wanes. This month enjoys a notable drop from the peak sunshine of August at 66%, yet still maintains significantly more sun than earlier in the year. As we progress from the chill of January’s 28% to the warm embrace of summer, September offers a great balance—coupling moderate sunshine with the softer light of early autumn. Overall, visitors can expect a delightful mix of sun and mild temperatures, making it a wonderful time to explore the enchanting landscapes and rich culture of Cortona.
As September unfolds in Cortona, Italy, the daylight begins to taper off, offering an average of 12 hours. This marks a gradual transition from the sun-drenched days of summer, where June peaks at 15 hours of sunlight, to the shorter, cozier days of autumn. Following the vibrant month of August, with its lush 13 hours of daylight, September serves as a gentle reminder of nature’s cyclical rhythm. As the month progresses, the warm hues of early fall combined with fewer daylight hours invite moments of reflection and appreciation for the beauty of change, setting the stage for the upcoming months of October and November, where daylight shrinks further to 10 hours and ultimately 9 hours.
As the summer heat begins to dissipate, September in Cortona, Italy brings a gentle breeze, with average wind speeds dropping to 1.9 m/s (4 mph). This marks one of the calmest months of the year, creating a serene atmosphere perfect for leisurely strolls through the picturesque streets. Notably, September transitions from the moderate winds of August and precedes a slight increase in October, which typically sees the winds pick up again to 2.7 m/s (6 mph). This gradual shift reflects the changing seasons, inviting visitors to enjoy the last whispers of summer while anticipating the refreshing autumn air that follows.
The weather in Cortona 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 Cortona and find detailed weather information for every month.
September and January present contrasting weather conditions. In September, temperatures range from a pleasant minimum of 8°C (47°F) to a warm maximum of 32°C (90°F), with an average of 20°C (68°F). The month sees a fair amount of rainfall, with 82 mm (3.2 in) falling over about 9 days, coupled with a moderate humidity level of 66%. In stark contrast, January experiences much colder temperatures, with a minimum of -5°C (23°F) and a maximum of 15°C (59°F), averaging just 5°C (41°F). The month has less rainfall, totaling 52 mm (2.1 in) over 8 days, yet it exhibits higher humidity at 84%. For more detailed insights on January weather patterns, you can explore Cortona weather in January.
September and February present strikingly different weather patterns. In September, temperatures typically range from a mild 8°C (47°F) at night to a warm 32°C (90°F) during the day, with an average of 20°C (68°F). The month sees 82 mm (3.2 in) of precipitation over approximately 9 days, accompanied by a humidity level of 66%. In contrast, February ushers in much colder conditions, with nighttime lows plunging to -8°C (18°F) and daytime highs only reaching 19°C (67°F), averaging 7°C (45°F). February experiences slightly less precipitation at 76 mm (3.0 in) across 9 days, but the humidity is higher at 76%. For more details, you can explore Cortona weather in February.
September and March present quite different weather conditions. In September, temperatures range from a minimum of 8°C (47°F) to a maximum of 32°C (90°F), with an average of 20°C (68°F). The humidity is relatively high at 66%, and the month sees about 82 mm (3.2 inches) of precipitation over approximately 9 days. In contrast, March is colder, with temperatures fluctuating between -10°C (14°F) and 22°C (71°F), averaging at 9°C (48°F). Despite having slightly less precipitation at 71 mm (2.8 inches) over 8 days, March maintains a similar humidity level of 68%. For a closer look at specific weather details, you can visit Cortona weather in March.
In September, the weather tends to be warmer, featuring a temperature range from a chilly minimum of 8°C (47°F) to a pleasant average of 20°C (68°F), peaking at a high of 32°C (90°F). This month also experiences around 82 mm (3.2 in) of precipitation over about 9 days, with humidity levels hovering around 66%.
In contrast, April is significantly cooler, with temperatures dipping to a minimum of -1°C (31°F) and averaging 12°C (54°F), while highs reach up to 26°C (78°F). The month sees a slightly lower total precipitation of 75 mm (2.9 in) over the same 9 days, and humidity is slightly higher at 70%. For a more detailed view of April's weather, you can check out Cortona weather in April.
In September, the weather typically showcases a warmer climate with average temperatures around 20°C (68°F) and a maximum of up to 32°C (90°F). In contrast, May's weather is milder, with an average temperature of 16°C (62°F) and a maximum of 30°C (86°F). Both months experience similar precipitation levels, with September receiving 82 mm (3.2 in) over 9 days, while May has slightly less rain at 77 mm (3.0 in) across 14 days. Humidity levels are relatively close, with September at 66% and May slightly higher at 69%. For more specific information about May weather, you can check out Cortona weather in May.
September typically experiences milder temperatures with a minimum of 8°C (47°F) and an average of 20°C (68°F), peaking at 32°C (90°F). In contrast, June starts warmer, with nighttime temperatures averaging 10°C (50°F) and daytime highs reaching up to 35°C (96°F). Additionally, September sees higher precipitation levels, with about 82 mm (3.2 in) over 9 days, while June has less rainfall at 47 mm (1.9 in) across just 6 days. Interestingly, the humidity in September is slightly higher at 66%, compared to June's 62%. For more details on the weather trends, you can check Cortona weather in June.
In comparing the weather of September and July, we observe notable differences in temperature and precipitation. September typically experiences a wider range of temperatures, with a minimum of 8°C (47°F) and a maximum of 32°C (90°F), leading to an average of 20°C (68°F). In contrast, July is warmer overall, with temperatures ranging from a minimum of 12°C (54°F) to a scorching maximum of 36°C (98°F), resulting in a higher average of 24°C (76°F). Additionally, September sees more rainfall, accumulating 82 mm (3.2 in) over 9 days, compared to only 32 mm (1.3 in) over 5 days in July. This increased precipitation in September, coupled with a higher humidity of 66%, contributes to a different overall feel compared to July's drier, less humid conditions at 57%. For a more detailed look at July's weather, you can visit Cortona weather in July.
In comparing the weather of September and August, it's evident that September experiences cooler temperatures, with a minimum of 8°C (47°F) and an average of 20°C (68°F), compared to August's warmer minimum of 13°C (55°F) and an average of 25°C (77°F). August is marked by higher maximum temperatures, reaching up to 38°C (101°F), while September peaks at a cooler 32°C (90°F). Additionally, September sees more rainfall, with 82 mm (3.2 in) over 9 days, whereas August has less precipitation at 46 mm (1.8 in) across 6 days, accompanied by lower humidity levels of 55% in August compared to 66% in September. For more detailed insights into August's climate, check out Cortona weather in August.
September and October display a noticeable shift in weather conditions. In September, temperatures range from a mild 8°C (47°F) at night to a warm average of 20°C (68°F) during the day, peaking at a maximum of 32°C (90°F). This month experiences 82 mm (3.2 in) of precipitation over 9 days, with humidity sitting at 66%. In contrast, October brings cooler temperatures, with a minimum of 5°C (41°F) and an average of 15°C (59°F), with highs reaching 27°C (80°F). Precipitation increases slightly to 90 mm (3.6 in) over the same number of days, and humidity rises to 79%. For a detailed look at October weather patterns, check out Cortona weather in October.
September generally offers warmer and more varied temperatures compared to November, with an average of 20°C (68°F), peaking at 32°C (90°F). In this month, precipitation measures around 82 mm (3.2 in) over approximately nine days, making it relatively dry for early fall. On the other hand, November brings a significant drop in temperatures, averaging only 11°C (51°F), with highs reaching 19°C (66°F) and lows dipping to around 0°C (33°F). This month is also wetter, with precipitation levels at 124 mm (4.9 in) spread across 14 days and a higher humidity level of 84%. For a detailed overview of November's weather conditions, you can check Cortona weather in November.
In September, temperatures in Cortona are pleasantly warm, with daily averages around 20°C (68°F) and highs reaching up to 32°C (90°F). However, the month sees about 82 mm (3.2 in) of rainfall over approximately 9 days, accompanied by a moderate humidity of 66%. In stark contrast, December brings a significant drop in temperatures, with averages hovering around 6°C (44°F) and maximums only reaching 15°C (60°F). This colder month also experiences more precipitation, totaling 113 mm (4.5 in) across about 12 days, and increased humidity at 83%. For more detailed insights about December's climate, check out Cortona weather in December.
As summer transitions into autumn, September in Cortona showcases a delightful shift in weather. The month brings warm days with a maximum temperature around 32°C, offering plenty of sunshine for outdoor activities. However, the evenings cool down, allowing for a refreshing respite with average temperatures around 20°C. While there’s some precipitation—about 82 mm over 9 days—this is less than in the peak summer months, making September an ideal time for exploring the stunning Tuscan landscape without the oppressive heat. With humidity levels around 66%, the weather remains pleasant, striking a perfect balance that distinguishes it from the high heat of July and August. For more detailed insights into the region's climate throughout the year, check out Cortona Climate.