Last updated: March 24, 2025
September on Isola del Giglio, Italy, presents a delightful blend of warm temperatures and mild humidity. With daytime highs reaching a pleasant 27°C (81°F) and an average temperature around 23°C (74°F), visitors can enjoy comfortable weather ideal for exploring the island's stunning landscapes. Nights bring a refreshing drop to about 16°C (61°F), perfect for cozy evenings. However, the month also experiences approximately 51 mm (2.0 in) of precipitation over about 7 days, so packing an umbrella might be wise. With a humidity level of 66%, the air feels pleasantly fresh, making it a lovely time to visit this charming destination.
In September, Isola del Giglio basks in a delightful transition from the heat of summer to the milder embrace of autumn. With minimum temperatures around 16°C (61°F) and averaging 23°C (74°F), the island offers a perfect backdrop for outdoor adventures. The maximum temperature often reaches a pleasant 27°C (81°F), inviting sunbathers and explorers alike to savor the lingering warmth of late summer. As the month progresses, days gradually shorten and evenings cool down, signaling a gentle shift in the island’s climate. This blend of warm days and cooler nights creates a perfect atmosphere for enjoying the stunning landscapes and vibrant local culture.
In September, Isola del Giglio experiences a revival in precipitation, with 51 mm (2.0 in) of rainfall recorded over 7 days. This slight uptick follows a notably dry summer, where August saw just 4 mm (0.2 in) of rain, marking it as the driest month of the year. The early autumn showers signal a transition, as the island prepares for a wetter season ahead, with October set to bring 93 mm (3.6 in) of rain across another 7 days. This increase is part of a broader trend, as the island transitions from the warmth of summer to the wetter, cooler months of autumn, ultimately culminating in November, which records a significant 168 mm (6.6 in) over 16 days. The change in precipitation patterns highlights the dynamic climate of Isola del Giglio, where seasonal shifts significantly influence weather conditions.
As summer wanes into fall, September in Isola del Giglio brings a noticeable shift in humidity, settling at 66%. This marks a slight increase from the drier conditions of August, which recorded a low 55% humidity. The trend showcases a gradual rise in moisture levels as the island transitions toward the wetter months, with humidity climbing back towards 70% by October. Throughout the year, Isola del Giglio experiences its peak humidity during the winter months, averaging around 84% in January and November. However, September offers a pleasant balance, providing a refreshing respite from the summer heat while hinting at the cooler, more humid days ahead.
As summer fades into early autumn, September in Isola del Giglio sees a notable decline in UV exposure, with the UV Index dropping to 7, categorized as high. This marks a transition from the intense levels experienced in the peak summer months of June and July, where values soared to 10 and 9 respectively. Fortunately, with a burn time of 25 minutes, visitors can still enjoy the sun while staying mindful of skin protection. Compared to May through August, which boasted very high exposure levels with a mere 15-minute burn time, September offers a slightly safer window for outdoor activities. As the year progresses, the UV Index levels continue to decline, emphasizing the importance of adapting sun safety practices year-round. For more detailed information, explore the Isola del Giglio UV Index.
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In September, Isola del Giglio basks in a generous 341 hours of sunlight, a beautiful transition into autumn after the summer’s peak. The island enjoys a gradual decline in sunshine hours from July's vibrant 432 hours, underscoring the lingering warmth of summer. While not as sun-drenched as the flamboyant months of June and July, September still offers a delightful mix of bright days and cooler evenings, making it an ideal time for visitors to explore the stunning landscapes and tranquil shores. As the year shifts, the light becomes softer, inviting a serene and picturesque atmosphere that embodies the essence of early fall in this enchanting Italian paradise.
As summer fades into autumn, the likelihood of sunny weather in Isola del Giglio during September remains quite favorable, boasting a 62% chance of sunshine. This relatively high probability continues a trend observed through the warmer months, where sunny days peak in August at 77%, showcasing the island's vibrant summer charm. Although September marks a slight dip compared to the height of summer, it still offers plenty of opportunities for outdoor exploration and enjoyment under sunny skies. Visitors can relish the lingering warmth and stunning coastal views, making it a delightful time to experience the natural beauty of this enchanting destination.
As summer gracefully transitions into autumn, September in Isola del Giglio, Italy, offers a gentle decline in daylight, averaging about 12 hours per day. This decrease from the vibrant 15 hours of June reflects the island’s shift from the sun-soaked energy of summer to the more tranquil, meditative embrace of fall. The daylight hours begin to moderate, creating a perfect backdrop for leisurely activities and peaceful reflection. Visitors can still relish the warm, golden hues of early autumn before the daylight dwindles further in October, with 11 hours on the horizon. This subtle ebb and flow of daylight not only marks the changing season but also invites a deeper appreciation for the beauty of this idyllic destination.
As summer transitions to autumn in Isola del Giglio, September brings a gentle breeze with an average wind speed of 4.6 m/s (10 mph). This slight uptick from the calm of August reflects the island's shifting climate, where winds gradually strengthen as the year progresses. In stark contrast to the milder summer months, September foreshadows the more robust gusts of October, which averages 6.4 m/s (14 mph), marking the onset of a brisker season. The overall trend illustrates a gradual increase in wind speeds as colder months approach, creating an inviting atmosphere for those who cherish the invigorating nature of early autumn on this stunning Italian island.
The weather in Isola del Giglio 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 Isola del Giglio and find detailed weather information for every month.
September and January present markedly different weather patterns. In September, temperatures range from a mild 16°C (61°F) to a warm 27°C (81°F), with an average temperature of 23°C (74°F). The month sees moderate precipitation of 51 mm (2.0 in) over approximately 7 days and a comfortable humidity level of 66%. In contrast, January experiences much cooler conditions, with temperatures ranging from a chilly 3°C (37°F) to a maximum of 17°C (63°F) and an average of just 12°C (54°F). This winter month has slightly higher precipitation, at 55 mm (2.2 in) over 8 days, along with increased humidity levels of 84%. For more detailed information, check out Isola del Giglio weather in January.
September and February present contrasting weather conditions. In September, temperatures range from a mild 16°C (61°F) at night to a warm average of 23°C (74°F) during the day, with highs reaching up to 27°C (81°F). The month sees an average precipitation of 51 mm (2.0 in) spread over about seven days, with humidity levels around 66%.
In contrast, February experiences much cooler temperatures, with a minimum of 1°C (34°F) and a maximum of just 17°C (62°F), resulting in an average of 12°C (55°F). Although February receives slightly more rainfall at 55 mm (2.2 in), it remains a damp month with higher humidity at 76%. For a deeper look at February conditions, you can visit Isola del Giglio weather in February.
September and March present contrasting weather profiles. September boasts a warmer climate with temperatures ranging from a mild 16°C (61°F) to a pleasant maximum of 27°C (81°F), while March experiences cooler conditions, with temperatures typically between 2°C (37°F) and 17°C (63°F). Both months see similar precipitation levels—51 mm (2.0 in) for September and 53 mm (2.1 in) for March—across approximately seven days, but March's higher humidity at 68% compared to September's 66% can make it feel cooler and more brisk. For those interested in exploring what March weather has to offer, check out Isola del Giglio weather in March.
When comparing the weather in September and April, notable differences emerge. September features milder temperatures, with an average of 23°C (74°F) and highs reaching 27°C (81°F), while April is cooler, averaging 15°C (58°F) with a maximum of 20°C (67°F). Precipitation levels are slightly higher in September, at 51 mm over 7 days, compared to April's 45 mm over 6 days. Humidity is marginally lower in September at 66%, whereas April sees a humidity level of 70%. For more information on April weather specifics, you can visit Isola del Giglio weather in April.
September tends to be warmer than May, with average temperatures around 23°C (74°F) compared to May’s 18°C (64°F). The maximum temperatures in September reach 27°C (81°F), while in May, they peak at 24°C (76°F). Additionally, September experiences slightly more rainfall, with 51 mm (2.0 in) compared to May's 42 mm (1.6 in), though both months have about seven days of precipitation. Interestingly, humidity levels are quite similar, with September at 66% and May slightly higher at 69%. For a more detailed look at May weather, you can check out Isola del Giglio weather in May.
When comparing the weather in September and June, both months exhibit mild temperatures but distinct rainfall patterns. September typically sees average temperatures ranging from a minimum of 16°C (61°F) to a maximum of 27°C (81°F), with an average of 23°C (74°F). It also experiences higher precipitation, totaling 51 mm (2.0 in) over about 7 days, leading to a more humid atmosphere at 66%. In contrast, June enjoys slightly warmer conditions with a minimum of 17°C (63°F) and a maximum of 28°C (82°F), averaging 22°C (72°F). However, June is much drier, receiving only 8 mm (0.3 in) of rain over 2 days, and has a lower humidity level of 62%. For more detailed insights into June weather, you can check Isola del Giglio weather in June.
When comparing the weather in September and July, it's clear that July tends to be warmer and drier. In July, temperatures range from a minimum of 21°C (71°F) to a maximum of 28°C (82°F), with an average temperature of 25°C (77°F). This month also sees significantly lower precipitation, with only 10 mm (0.4 in) falling over just one day and humidity at 57%.
In contrast, September experiences cooler temperatures, with a minimum of 16°C (61°F) and a maximum of 27°C (81°F). The average temperature in September is 23°C (74°F), but this month also receives more rainfall—51 mm (2.0 in) over seven days—along with higher humidity levels at 66%. For more detailed information, you can check the Isola del Giglio weather in July.
In comparing the weather between September and August, we see a noticeable shift in temperatures and precipitation. September has a minimum temperature of 16°C (61°F) and an average of 23°C (74°F), markedly cooler than August, which boasts a minimum of 21°C (70°F) and an average of 26°C (78°F). While September experiences some rain with 51 mm (2.0 in) over 7 days and a higher humidity of 66%, August remains dry with only 4 mm (0.2 in) of precipitation and humidity at 55%. For more detailed information about the weather in August, you can visit Isola del Giglio weather in August.
In September, the weather is generally warmer with average temperatures reaching 23°C (74°F), peaking at a maximum of 27°C (81°F). The month experiences moderate precipitation of 51 mm (2.0 in) over 7 days, accompanied by a humidity level of 66%. In contrast, October brings cooler temperatures, with an average of 19°C (67°F) and a maximum of 24°C (75°F). However, it is also wetter, with precipitation increasing to 93 mm (3.6 in) over the same number of days, and humidity rising to 79%. For more detailed insights into October weather, you can check Isola del Giglio weather in October.
In September, the weather is generally warm and pleasant, with average temperatures around 23°C (74°F) and highs reaching up to 27°C (81°F). This month also sees relatively low precipitation, totaling 51 mm over about 7 days, and the humidity hangs around 66%. In contrast, November brings a significant drop in temperatures, with averages plunging to 16°C (61°F) and maximums only reaching 21°C (69°F). Additionally, November is much wetter, with 168 mm of rainfall spread across 16 days and higher humidity levels at 84%. For more details on the weather specifics, you can check Isola del Giglio weather in November.
September weather typically brings milder temperatures, with daily averages around 23°C (74°F) and max highs reaching 27°C (81°F). The humidity is moderate at 66%, and while there is some rainfall, with precipitation occurring on about 7 days totaling 51 mm (2.0 in), the overall atmosphere tends to be pleasant for outdoor activities.
In contrast, December sees a significant drop in temperatures, averaging around 14°C (57°F) and peaking at 17°C (63°F). The minimum temperatures can fall to 8°C (46°F), and the month experiences increased precipitation, totaling 86 mm (3.4 in) over approximately 12 days. Additionally, the humidity rises to 83%, contributing to a colder and wetter climate.
For more detailed information about December weather in this region, you can check Isola del Giglio weather in December.
As summer transitions into autumn, September on Isola del Giglio brings a delightful shift in weather, offering an ideal blend of warmth and comfort. With average temperatures hovering around a pleasant 23°C, the island experiences fewer sweltering days compared to July and August, making outdoor activities more enjoyable. Although occasional rain showers occur—totaling about 51 mm over approximately seven days—the humidity remains relatively moderate at 66%, contributing to a balanced atmosphere. This perfect combination makes September a captivating time to visit, providing a serene climate for those looking to explore the natural beauty of the island. For more details on the overall conditions, check out Isola del Giglio Climate.