Last updated: March 24, 2025
September in Como, Italy offers a delightful transition into autumn, characterized by a maximum temperature of 29°C (84°F) and a comfortable average of 19°C (66°F). The nights can cool down to a brisk 8°C (46°F), making for a refreshing outdoor experience. However, visitors should be prepared for occasional rain, as the region receives an average of 146 mm (5.8 in) of precipitation over 11 days in the month, contributing to the lush landscapes. With humidity levels around 74%, the air maintains a soft warmth, enhancing the enchanting charm of Como’s lakeside scenery and picturesque vistas.
In September, Como, Italy, experiences a delightful transition into autumn, with temperatures that embody the charm of early fall. The month starts with a minimum of 8°C (46°F) and climbs to an average of 19°C (66°F), peaking at a pleasant 29°C (84°F). This gradual cooling from the sizzling summer months, where temperatures often reached into the low 30s°C, signals a shift towards more comfortable conditions. The crisp mornings and warm afternoons create the perfect environment for exploring the enchanting lakeside vistas and historic architecture. As September unfolds, pack light layers to enjoy the mild weather, making it an ideal time for outdoor activities and leisurely strolls along the beautiful shores of Lake Como.
September in Como, Italy, marks a notable transition as summer begins to wane. With 146 mm (5.8 in) of precipitation, it ranks as one of the wetter months of the year, second only to May and July. Rainfall is distributed over approximately 11 days, offering a balanced blend of sunny spells and refreshing showers. This month sets the stage for the vibrant autumn season, reflecting a steady increase in precipitation from the preceding summer months. As the landscape shifts from the heat of summer to the briskness of fall, the rainfall nurtures the local flora, enhancing Como’s natural beauty just in time for the stunning autumn foliage.
As summer gives way to autumn, September in Como, Italy, experiences a shift in humidity levels, settling around 74%. This marks a noticeable increase from the low of 64% reached in August, hinting at the transition into a more humid season. Although September's humidity is lower than the winter months—where it peaks at 88% in January and November—it signals a return to the wetter conditions that characterize the region as the year progresses. The gradual rise from the drier summer months provides a refreshing freshness in the air, making early autumn an enchanting time to explore the scenic beauty of Como.
As summer transitions to autumn in Como, Italy, the UV Index experiences a notable decline in September, settling at 6—a reflection of the high exposure category. This represents a shift from the intense very high levels (rated 8 or 9) seen in July and August, making it essential to remain mindful about sun protection, with a burn time of just 25 minutes. Fortunately, the mild decrease is accompanied by the beautiful onset of fall, allowing residents and visitors alike to enjoy outdoor activities while still taking precautions. For those planning to bask in the early autumn sun, maintaining awareness of the UV Index is key; you can find more detailed information on Como UV Index.
UV Risk Categories
As summer transitions into autumn, September in Como, Italy, offers a delightful balance of warmth and sunshine, boasting an impressive 335 hours of sunlight. The month stands out as a serene reprieve after the sun-drenched peak of July, which enjoys the highest sunshine at 427 hours. This gradual decline in sunlight hours reflects the onset of fall, yet September retains a brightness that perfectly complements the stunning landscapes of the region. While the days grow shorter, the sun still casts a warm glow on the enchanting lakeside vistas, making it an ideal time for leisurely strolls and experiencing the last whispers of summer in this picturesque destination.
As summer transitions into autumn, September in Como, Italy, offers a modest 44% chance of sunny weather. While this percentage is slightly lower than the peak summer months, like August with its 55% chance, it remains relatively favorable compared to the earlier months of the year. Notably, March shines with a sunny likelihood of 64%, the highest among the entire year. However, September's weather can still bring delightful sunny spells, especially as the region enjoys the tail end of warm days. With the evolving climate, visitors can anticipate a mix of sun and occasional clouds, perfect for exploring the picturesque landscapes of Como.
As summer transitions to autumn in Como, Italy, September graces the landscape with an average of 12 hours of daylight. This reduction from the 15 hours experienced in June and July marks a gradual shift as the days shorten. September's daylight lingers longer than the preceding winter months, showcasing a gentle decline from the vibrant, sun-soaked days of summer to the cozy ambiance of fall. With each passing week, the evenings inch closer, inviting the charm of autumn's twilight. This enchanting shift not only highlights the rhythm of nature but also sets the stage for the stunning foliage and serene landscapes that define the region in the months to follow.
As summer gently gives way to autumn, September in Como reveals a subtle shift in its breezy demeanor, with the average wind speed dipping to 1.5 m/s (3 mph). This marks the season’s calmest winds, a transition from the slightly more lively gusts of July and August, which hovered around 1.7 to 1.8 m/s (4 mph). The softer breezes invite leisurely strolls along the picturesque shores of Lake Como, where visitors can bask in the tranquil atmosphere. As temperatures begin to cool, September's winds hold a whisper of summer’s warmth while signaling the approaching fall, perfectly embodying that serene and reflective charm that Como is known for.
The weather in Como 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 Como and find detailed weather information for every month.
September and January present starkly contrasting weather patterns. In September, temperatures start to enjoy a warm average of 19°C (66°F), peaking at a pleasant 29°C (84°F), while the month also experiences more rainfall, totaling 146 mm (5.8 in) over about 11 days at a humidity level of 74%. In contrast, January brings a crisp chill, with average temperatures dropping to just 4°C (39°F) and daytime highs reaching only 16°C (60°F). Precipitation during January is significantly lower at 42 mm (1.7 in) across about 6 days, though humidity is notably higher at 88%. For those curious about January's weather specifics, you can view more details in this link: Como weather in January.
September and February present contrasting weather patterns in terms of temperature and precipitation. September enjoys milder conditions, with temperatures ranging from a minimum of 8°C (46°F) to a pleasant average of 19°C (66°F) and a maximum of 29°C (84°F). It also experiences significant rainfall, totaling 146 mm (5.8 in) over about 11 days, accompanied by a humidity level of 74%. In contrast, February brings colder temperatures, with a minimum of -7°C (19°F) and an average of only 6°C (43°F), peaking at 20°C (68°F). Precipitation during this month is significantly lower, at 46 mm (1.8 in) across 7 days, but the humidity rises slightly to 81%. For a more detailed look at February weather, you can visit Como weather in February.
When comparing the weather in September and March, there are notable differences in temperature and precipitation. September generally boasts milder temperatures, with an average of 19°C (66°F) and a maximum reaching 29°C (84°F), while March experiences cooler conditions, averaging only 9°C (48°F) and peaking at 23°C (74°F). Additionally, September sees more rainfall, totaling 146 mm (5.8 in) over 11 days, compared to March's 88 mm (3.5 in) over just 9 days. Both months have relatively high humidity, with September at 74% and March slightly higher at 76%. For more details on March conditions, you can refer to Como weather in March.
In comparing the weather of September and April, it’s evident that September tends to be warmer overall, with average temperatures peaking at 19°C (66°F) compared to April's 13°C (56°F). September also experiences higher maximum temperatures, reaching up to 29°C (84°F), while April maxes out at 25°C (78°F). Both months have similar precipitation levels, with September seeing 146 mm (5.8 in) and April slightly less at 124 mm (4.9 in), each with rain on about 11 days. Additionally, humidity levels are fairly close, with September at 74% and April at 77%. For more specific details about the weather in April, you can check Como weather in April.
September and May exhibit similar humidity levels at 74%, but their temperatures present notable differences. In September, the temperatures range from a minimum of 8°C (46°F) to a maximum of 29°C (84°F), averaging at 19°C (66°F). In contrast, May boasts slightly cooler minimum temperatures of 5°C (41°F) and higher maximums reaching 32°C (89°F), with an average of 17°C (63°F). While September experiences a total precipitation of 146 mm (5.8 in) over 11 days, May is slightly drier with 143 mm (5.6 in) over 16 days. For a more detailed view of the weather in May, you can check this link: Como weather in May.
In comparing the weather of September and June, we see distinct differences in temperature and precipitation patterns. September experiences cooler temperatures, with a minimum of 8°C (46°F) and an average of 19°C (66°F), while June is significantly warmer, boasting a minimum of 12°C (55°F) and an average of 22°C (72°F). The maximum temperatures in June can soar to 37°C (100°F), compared to September's peak of 29°C (84°F). Precipitation is relatively similar, with September recording 146 mm (5.8 in) over 11 days, whereas June sees slightly more with 161 mm (6.4 in) over 12 days. Both months maintain high humidity levels, with September at 74% and June at 71%. For those interested in specific conditions, Como weather in June can provide further insights.
In September, the weather generally cools down compared to the warm days of July. With average temperatures ranging from a minimum of 8°C (46°F) to a maximum of 29°C (84°F), September shows a significant drop in nighttime temperatures, contrasting with July's milder lows of 14°C (57°F) and highs reaching up to 34°C (94°F). While both months experience considerable precipitation, September sees about 146 mm (5.8 in) over roughly 11 days, whereas July has a slightly higher total of 164 mm (6.5 in) over 14 days. Additionally, humidity levels are higher in September at 74% compared to July's 67%, making the later summer month feel a bit more humid. For a detailed look at July's conditions, check out Como weather in July.
In comparing the weather between September and August, September generally presents cooler temperatures, with a minimum of 8°C (46°F) and a maximum of 29°C (84°F), while August boasts warmer averages ranging from a minimum of 14°C (58°F) to a maximum of 34°C (93°F). The average temperature in September is around 19°C (66°F), significantly lower than August’s average of 24°C (75°F). In terms of precipitation, September sees a slightly higher total of 146 mm (5.8 in) over 11 days compared to August's 136 mm (5.3 in) over 13 days, suggesting that September may be wetter but also less humid, with humidity levels at 74% versus August's 64%. For a more detailed look at conditions, you can visit Como weather in August.
September and October exhibit notable shifts in weather patterns. In September, temperatures are generally warmer, with averages around 19°C (66°F) and maximums reaching 29°C (84°F), while October sees cooler conditions, averaging just 14°C (58°F) and peaking at 26°C (80°F). Both months experience significant precipitation, but October's rainfall slightly increases to 152 mm (6.0 in) over 8 days compared to September's 146 mm (5.8 in) across 11 days. Additionally, October tends to be more humid, with humidity levels rising to 87% from September's 74%. For more details on October's weather, you can check Como weather in October.
September generally experiences milder temperatures compared to November, with daytime highs averaging around 19°C (66°F) and reaching up to 29°C (84°F), while November's high rarely exceeds 18°C (64°F) and the average plummets to 9°C (49°F). Additionally, September tends to be less humid with an average humidity of 74%, contrasting with November's more pronounced humidity at 88%. Precipitation is quite common in both months, but November sees slightly higher rainfall at 169 mm (6.7 in) over 12 days, compared to September's 146 mm (5.8 in) over 11 days. For more detailed information, check out Como weather in November.
September and December reflect a stark contrast in weather conditions. In September, temperatures range from a mild 8°C (46°F) at night to a warm 29°C (84°F) during the day, with an average of 19°C (66°F). The month sees significant rainfall, totaling 146 mm (5.8 in) over approximately 11 days, accompanied by a humidity level of 74%. In contrast, December ushers in much colder temperatures, with nighttime lows dropping to -3°C (28°F) and daytime highs peaking at 14°C (58°F), averaging just 5°C (41°F). While December has less total precipitation at 94 mm (3.7 in), it occurs over fewer days (8 days) and with higher humidity (85%). This shift underscores the transition from the warmth of early autumn to the chill of winter. For more insights into December weather, you can visit Como weather in December.
As summer gracefully transitions to autumn, September in Como offers a delightful mix of warmth and refreshing breezes. Unlike the scorching heat of July and August, this month presents a more moderate climate, with daytime temperatures becoming increasingly pleasant. While rainfall makes its presence felt with an average of 11 days of precipitation, the increased humidity adds a certain freshness to the air. This unique blend of weather not only enhances the beauty of Como's landscapes but also makes it an inviting time for visitors to explore the region’s stunning scenery. For a deeper dive into how the climate shapes this picturesque destination, check out Como Climate.