Last updated: March 24, 2025
Nestled on the stunning Tuscan coast, Porto Santo Stefano experiences an inviting September, characterized by maximum temperatures reaching 28°C (82°F) and a comfortable average of 23°C (73°F). As summer gently transitions into autumn, the weather remains pleasant with minimum temperatures around 16°C (60°F). Visitors can expect a modest precipitation total of 59 mm (2.3 in) over the month, spread across approximately 7 days, allowing ample opportunities to bask in the sunny ambiance. With humidity resting at 66%, September offers a delightful climate for both relaxation and exploration in this picturesque Italian coastal town.
In September, Porto Santo Stefano experiences a delightful transition from the summer heat to the milder autumn weather. With minimum temperatures around 16°C (60°F) and averages rising to a comfortable 23°C (73°F), the early fall season offers a pleasant backdrop for exploring this charming coastal town. The maximum temperature can still reach up to 28°C (82°F), allowing for warm, sun-soaked days, perfect for lounging on the beach or savoring a leisurely meal outdoors. As summer crowds begin to thin, September invites visitors to enjoy the vibrant local culture and stunning landscapes in a more tranquil setting, striking a harmonious balance between warm days and cooler evenings.
September in Porto Santo Stefano marks a transition in weather patterns, with precipitation levels rising to 59 mm (2.3 in), a notable increase compared to the dry summer months. Rainfall occurs over approximately 7 days, providing much-needed moisture as the region shifts from the heat of summer towards the cooler autumn months. This increase is significant, especially when juxtaposed with the preceding months of July and August, which recorded just 18 mm and 7 mm respectively. As the year progresses, October brings even wetter weather with 98 mm (3.9 in) expected, foreshadowing the more substantial rainfall characteristic of late autumn in this Mediterranean locale. Thus, September serves as a pivotal month, bridging the dry spells of summer and the impending rainy season.
In September, Porto Santo Stefano experiences a notable shift in humidity, reaching 66% as the summer heat begins to wane. This slight increase from the notable low of 55% in August signals the transition into the more humid autumn months, with humidity levels on the rise again as they approach the peak observed in the winter months. The consistently high humidity of 84% in January and November highlights the region's damp character, while the summer months enjoy a welcome reprieve with the lowest levels seen in July and August. Overall, September marks a bridge between the dry warmth of summer and the wetter, cooler embrace of fall, providing a unique blend of comfort for visitors and locals alike.
As September rolls in, the UV Index in Porto Santo Stefano sees a slight decline, registering at a high level of 7, which calls for mindful sun exposure. This month marks a transition from the intense summer rays, peaking in June and July, where the index reached 10 and 9 respectively, indicating a pressing need for sun protection. With a burn time of 25 minutes, September allows for a more moderate sun experience compared to the 15-minute burn of the peak summer months. As the season shifts, it’s crucial to stay cognizant of sun safety, especially with the sun still strong but less relentless. For more detailed insights into the UV challenge throughout the year, visit Porto Santo Stefano UV Index.
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As summer fades into autumn, September in Porto Santo Stefano offers a delightful blend of warmth and sunshine, accumulating an impressive 341 hours of sunshine. This month marks a significant decline from the sun-drenched heights of July and June, where sunshine peaked at 432 and 418 hours, respectively. However, September still holds its charm, basking in plenty of light as the vibrant summer crowds begin to wane. This transition reflects a broader pattern, where daily sunshine hours gradually decrease as the year progresses; from 405 hours in May to 316 hours in October. Yet, there's something uniquely inviting about September's softer glow, setting the perfect backdrop for exploring the coastal treasures of this idyllic Italian gem.
In Porto Santo Stefano, the likelihood of sunny weather in September offers a delightful transition from the summer peak. As the sweltering heat of July and August begins to wane, September retains a respectable 61% chance of sunshine, making it an ideal time for outdoor activities and enjoying the picturesque coastal scenery. This month marks a subtle dip from the summer's peak of 76%, yet it still stands out as significantly sunnier than the cooler months of October and November, where the chances drop to 49% and 37% respectively. Overall, September strikes a perfect balance, offering sun seekers the opportunity to relish the pleasant climate before autumn settles in.
As summer transitions into autumn, September in Porto Santo Stefano offers a delightful 12 hours of daylight, marking a gentle decline from the sun-drenched days of summer. This month serves as a bridge, showcasing the lingering warmth of the lengthy June days, which bask in 15 hours of sunshine, before gradually retreating towards the shorter days of fall. With each passing month, from the long stretches of daylight in April and May—where it peaks at 14 hours—to the more muted glow of October's 11 hours, September strikes a balance, allowing residents and visitors alike to savor slightly cooler evenings while still enjoying the light-filled days that linger just a little longer.
In September, Porto Santo Stefano experiences a gentle shift in its coastal breezes, with an average wind speed of 4.1 m/s (9 mph). This month marks a transition from the calmer summer winds of August, which average 3.8 m/s (8 mph), creating a more refreshing atmosphere as autumn approaches. The overall trend in the wind patterns throughout the year showcases a gradual increase in speed from the lows of late spring, peaking again toward the end of the year. As the summer crowds disperse, the pleasant September winds provide an ideal setting for leisurely seaside strolls and vibrant outdoor activities, embodying the charm of this Italian gem.
The weather in Porto Santo Stefano 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 Porto Santo Stefano and find detailed weather information for every month.
In September, the weather is quite warm, with average temperatures ranging from a minimum of 16°C (60°F) to a maximum of 28°C (82°F), making it ideal for outdoor activities. In contrast, January presents a chilly atmosphere, with temperatures typically between 2°C (36°F) and 17°C (62°F), signifying a significant drop in warmth. Both months see a similar amount of precipitation, around 59-61 mm, falling on approximately 7 days; however, January’s higher humidity at 84% contributes to a cooler, damp feel compared to the relatively comfortable 66% in September. For more detailed insights into the chilly winter weather, you can find information in this link: Porto Santo Stefano weather in January.
September and February present contrasting weather conditions. In September, temperatures are notably warmer, with a minimum of 16°C (60°F) and an average of 23°C (73°F), peaking at 28°C (82°F). This month also sees moderate precipitation at 59 mm (2.3 in) over approximately 7 days, accompanied by a comfortable humidity level of 66%. In stark contrast, February experiences much cooler temperatures, with a minimum of 0°C (33°F) and an average of 12°C (54°F), reaching a maximum of just 17°C (62°F). The precipitation is slightly higher at 60 mm (2.4 in) spread across about 8 days, coupled with increased humidity at 76%. For more detailed information, you can check Porto Santo Stefano weather in February.
When comparing the weather in September and March, notable differences arise in temperature and overall climate. September boasts milder temperatures, with a minimum of 16°C (60°F) and an average of 23°C (73°F), reaching highs of 28°C (82°F). In contrast, March experiences much cooler conditions, with a minimum of 1°C (34°F) and a maximum of 18°C (64°F), averaging around 12°C (54°F). Both months see similar levels of precipitation, with September having 59 mm (2.3 in) and March slightly less at 53 mm (2.1 in), spread over seven days in each month. Humidity is slightly higher in March at 68%, compared to September's 66%. For a more detailed outlook on March weather, you can visit Porto Santo Stefano weather in March.
When comparing the weather between September and April, it's clear that September tends to be much warmer and more pleasant. September enjoys mild temperatures, with a minimum of 16°C (60°F) and an average of 23°C (73°F), peaking at 28°C (82°F). In contrast, April only sees a minimum of 7°C (46°F) and an average of 14°C (58°F), with a maximum of 20°C (69°F). Although April has slightly less precipitation at 49 mm (1.9 in) over 6 days compared to September's 59 mm (2.3 in) over 7 days, the humidity is slightly higher in April at 70% compared to September’s 66%. For more details on April weather, check out Porto Santo Stefano weather in April.
When comparing the weather in September and May, September tends to be warmer with an average temperature of 23°C (73°F) and maximum highs reaching up to 28°C (82°F). In contrast, May has cooler temperatures, averaging 18°C (64°F) with maximums of 25°C (78°F). Additionally, September sees slightly more precipitation at 59 mm (2.3 in) over 7 days, compared to May's 45 mm (1.8 in) over 9 days. Humidity levels are also comparable, with September at 66% and May at 69%. For more detailed information, you can refer to Porto Santo Stefano weather in May.
In comparing the weather of September and June, both months experience mild temperatures, but September tends to be slightly warmer with average highs reaching 28°C (82°F) compared to June's 29°C (84°F). The minimum temperatures are quite similar, with September averaging 16°C (60°F) and June at 17°C (62°F). Regarding precipitation, September is wetter, receiving 59 mm (2.3 inches) over 7 days, while June sees only 12 mm (0.5 inches) over 3 days, resulting in a drier atmosphere. Humidity levels are also notable, with September being slightly more humid at 66% compared to June's 62%. For a closer look at June weather specifics, visit Porto Santo Stefano weather in June.
In comparing the weather of September and July, we see distinct differences in both temperature and precipitation. September experiences a slightly lower average temperature of 23°C (73°F) compared to July's warmer average of 25°C (77°F). While both months have maximum temperatures peaking at 28°C (82°F for September and 83°F for July), September's minimum temperature is notably cooler at 16°C (60°F) versus July's 21°C (70°F). Additionally, September is wetter, with 59 mm (2.3 in) of precipitation over 7 days, compared to July's much lighter rainfall of 18 mm (0.7 in) across just 2 days. Humidity also differs, with September being more humid at 66%, while July has a more comfortable 57%. For a detailed look at July's climate, check out Porto Santo Stefano weather in July.
In comparing the weather of September to that of August, we see a notable shift in temperature and precipitation patterns. September records a minimum temperature of 16°C (60°F), a drop from August's warmer minimum of 20°C (69°F). The average temperature also decreases slightly from 26°C (78°F) in August to 23°C (73°F) in September, though the maximum temperature remains close, with September reaching 28°C (82°F) compared to August's 29°C (84°F). Additionally, September experiences significantly higher precipitation, totaling 59 mm (2.3 in) over 7 days, while August is much drier with just 7 mm (0.3 in) over a single day. Humidity levels also rise from 55% in August to 66% in September, contributing to a more humid feel as fall approaches. For a detailed look at August weather specifically, you can refer to Porto Santo Stefano weather in August.
September typically offers warmer temperatures, with averages around 23°C (73°F) and peaks reaching up to 28°C (82°F). In contrast, October sees a drop in temperatures, averaging 19°C (67°F) and maxing out at 24°C (75°F). Rainfall also increases in October, with 98 mm (3.9 in) of precipitation over 9 days, compared to 59 mm (2.3 in) over 7 days in September. Additionally, October experiences higher humidity levels at 79%, while September holds steady at 66%. For more detailed information, you can check Porto Santo Stefano weather in October.
In September, the weather is generally warmer, with average temperatures ranging from a minimum of 16°C (60°F) to a maximum of 28°C (82°F) and a moderate precipitation of 59 mm (2.3 in) spread over 7 days. The humidity level is also relatively comfortable at 66%. In contrast, November brings cooler temperatures, with averages dropping to a minimum of 8°C (47°F) and a maximum of 21°C (70°F). This month sees significantly higher precipitation, totaling 183 mm (7.2 in) over 17 days, along with increased humidity at 84%. For more details on the weather patterns in November, you can check Porto Santo Stefano weather in November.
September and December present two distinct weather patterns. In September, temperatures are milder with a minimum of 16°C (60°F), an average of 23°C (73°F), and a maximum of 28°C (82°F), accompanied by moderate precipitation of 59 mm (2.3 in) over 7 days and a humidity level of 66%. In contrast, December sees a drop in temperatures, with a minimum of 7°C (44°F), an average of 13°C (56°F), and a maximum of 17°C (63°F). This month experiences greater precipitation, totaling 107 mm (4.2 in) across 12 days and higher humidity at 83%. For more details on the December weather, you can visit Porto Santo Stefano weather in December.
As summer transitions into autumn, September brings a delightful shift in Porto Santo Stefano's weather, characterized by warm temperatures and moderate humidity. With pleasant averages hovering around 23°C (73°F), this month invites visitors to enjoy sunny days tempered by occasional rain, amounting to about 59 mm. Compared to the elevated heat and longer days of peak summer, September offers a more comfortable climate, making it an ideal time for outdoor activities while avoiding the larger tourist crowds. For more insights into the weather patterns across the year, check out Porto Santo Stefano Climate.