Last updated: March 24, 2025
In September, Bonassola, Italy, offers a delightful transition into the autumn season, with maximum temperatures reaching 28°C (83°F) and an average of 21°C (69°F). Visitors can expect pleasant weather despite some variability, as the region experiences about 103 mm (4.1 in) of precipitation over 10 days. The humidity level hovers around 74%, creating an inviting atmosphere ideal for exploring the charming coastal landscapes or enjoying local outdoor activities. Whether basking in the warm sun or taking in the stunning views, September is a lovely time to experience Bonassola's breathtaking beauty.
In September, Bonassola, Italy, offers a delightful transition from the summer heat, with temperatures averaging around 21°C (69°F). The month opens with comfortable lows of 13°C (55°F) and peaks at a pleasant 28°C (83°F), making it an ideal time for outdoor activities and enjoying the stunning coastal views. As the summer crowd thins, visitors can relish the warm days without the oppressive heat, creating a perfect atmosphere for exploring the charming village and its scenic surroundings. This month serves as a gentle reminder that while summer fades, the beauty of Bonassola continues to shine under the golden autumn sun.
In September, Bonassola experiences a notable uptick in precipitation, with 103 mm (4.1 in) of rain falling over 10 days. This marks a transition from the dry summer months, where rainfall is minimal, to a more robust autumn season. The shift is evident as precipitation levels increase sharply compared to the preceding summer months—July and August recorded only 33 mm (1.3 in) and 45 mm (1.8 in), respectively. September's rainfall prepares the landscape for the more substantial deluges that October and November typically bring, showcasing a clear trend of escalating precipitation as fall progresses. This pattern not only rejuvenates the region's vibrant flora but also provides a refreshing change after the drier summer, embodying the essence of Bonassola's seasonal transformation.
As summer fades into autumn, September in Bonassola, Italy, brings a noticeable shift in humidity levels, averaging around 74%. This marks a slight increase from the drier months of July and August, which experience their lowest humidity levels at 67% and 64%, respectively. The transition into fall hints at the ebbing warmth and rising moisture, setting the stage for the wetter months ahead. Following September, October and November see humidity levels climb back to 87% and 88%, respectively, as the region prepares for the lush greenery brought by the autumn rains. Overall, September serves as a bridge, blending the residual warmth of summer with the impending embrace of autumn's cooler, more humid days.
As summer transitions into autumn, September in Bonassola, Italy, sees a notable shift in UV exposure, with the UV Index dropping to 7, signaling a high exposure category. This change allows for a burn time of 25 minutes, granting a brief respite from the intense sun that characterizes the peak summer months of June to August, where the UV Index consistently reached 9. Despite this decrease, precautions should still be taken, as the sun remains strong. As you enjoy Bonassola’s beautiful coastal scenery, it's essential to stay mindful of sun safety during this month. For more information on UV levels throughout the year, visit Bonassola UV Index.
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As September arrives in Bonassola, Italy, the days remain bright and inviting, offering 339 hours of cheerful sunshine. This month beautifully bridges the vibrant summer and the mellow fall, allowing visitors to bask in warm sun-soaked afternoons while enjoying the lingering warmth of late summer. Following the peak sunshine of July at 429 hours, the sunlight begins to taper off, yet September still boasts a significant glow compared to the chillier months that follow. The gradual decline, from 415 hours in June to September's totals, hints at a seasonal transition, but the enduring luminosity continues to illuminate the stunning coastal views and enchanting landscapes, making it an ideal time for travelers to explore the charm of this picturesque locale.
In September, Bonassola, Italy, enjoys a 53% chance of sunny weather, marking a pleasant transition as summer begins to fade. This month typically experiences a balance of sun and cloud, following the peak of sunny days in August at 62%. As the seasons shift, September offers many bright days for outdoor activities, though the likelihood of sun slightly decreases compared to the summer months. With a higher chance of sunshine than both the preceding spring and the upcoming autumn months, September stands out as an appealing time for visitors looking to soak up the last warm rays before autumn settles in.
As summer gives way to autumn in Bonassola, Italy, September offers a gentle transition in daylight hours. With 12 hours of daylight, the month sees a gradual decrease from the bright, sun-soaked days of July and August, which each boast a peak of 15 hours. This reduction marks the shift away from the summer solstice, yet September still provides a generous amount of sunlight, allowing for ample opportunities to explore the stunning Ligurian coastline. As the month progresses, daylight will continue to dwindle, paving the way for the shorter days of October, which brings just 10 hours of daylight. This rhythm of seasonal change echoes the beauty of Bonassola, where every hour of sunlight contributes to the charm of this coastal gem.
As summer gracefully transitions to autumn in Bonassola, September brings a gentle shift in the breeze, with average wind speeds dropping to 2.5 m/s (5 mph). This notable decrease follows a trend of gradually diminishing winds throughout the peak tourist months of July and August, where the coastline often enjoyed a mild, calm atmosphere. The early autumn month welcomes a more tranquil environment, promising pleasant seaside strolls and leisurely afternoons. However, as the calendar turns to October, wind speeds are projected to rise again, hinting at a dynamic shift as the seasons continue to unfold. This rhythm of changing winds reflects the charm of Bonassola's coastal climate, making each month unique in its own right.
The weather in Bonassola 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 Bonassola and find detailed weather information for every month.
September and January present stark contrasts in weather conditions. In September, temperatures range from a mild 13°C (55°F) at night to a warm 28°C (83°F) during the day, with an average around 21°C (69°F). This month typically sees around 103 mm (4.1 in) of precipitation over approximately 10 days, accompanied by a humidity level of 74%. In comparison, January is much cooler, with temperatures dipping as low as 2°C (35°F) and peaking at 15°C (59°F), resulting in a chilly average of 8°C (47°F). Precipitation amounts to 89 mm (3.5 in), also spread over about 10 days, but with higher humidity at 88%. For more detailed insights into weather conditions, you can visit Bonassola weather in January.
September and February present contrasting weather conditions, showcasing significant seasonal differences. In September, temperatures range from a mild 13°C (55°F) at night to a warm 28°C (83°F) during the day, with an average of 21°C (69°F). The month is relatively humid at 74%, experiencing about 103 mm (4.1 in) of precipitation over approximately 10 days. Conversely, February temperatures drop dramatically, with a minimum of -3°C (27°F) and a maximum of 17°C (63°F), averaging just 9°C (49°F). This winter month sees increased precipitation of 137 mm (5.4 in) over around 12 days, coupled with higher humidity levels of 81%. For more details on February weather conditions, you can visit Bonassola weather in February.
September and March present contrasting weather conditions. In September, temperatures range from a minimum of 13°C (55°F) to a maximum of 28°C (83°F), with an average of 21°C (69°F), making it warmer overall. In contrast, March experiences cooler temperatures, with a minimum of -1°C (30°F) and a maximum of 18°C (65°F), averaging around 10°C (51°F). Both months have comparable precipitation levels, with September receiving 103 mm (4.1 in) over 10 days and March slightly wetter at 126 mm (5.0 in) over 11 days. Humidity is also similar, with September at 74% and March slightly higher at 76%. For more details on March weather, you can check Bonassola weather in March.
September and April present distinctly different weather patterns. In September, temperatures range from a minimum of 13°C (55°F) to a maximum of 28°C (83°F), with an average of 21°C (69°F), making it warmer overall. The month experiences about 103 mm (4.1 in) of precipitation over approximately 10 days, with humidity levels around 74%. Conversely, April sees cooler conditions, with temperatures fluctuating between a minimum of 5°C (41°F) and a maximum of 23°C (74°F), averaging at 13°C (55°F). Though it has a similar level of precipitation at 105 mm (4.1 in) over 9 days, the humidity is slightly higher at 77%. For more details on April weather, you can check Bonassola weather in April.
September typically offers warmer temperatures compared to May, with average highs reaching 21°C (69°F) in September versus 16°C (61°F) in May. However, May experiences a comparable maximum temperature of 27°C (80°F), similar to September's peak of 28°C (83°F). Both months also share a consistent humidity level of 74%, but September tends to be slightly wetter, with 103 mm (4.1 in) of precipitation over about 10 days, while May has 123 mm (4.8 in) across 14 days. For more detailed insights into the weather during this month, you can check Bonassola weather in May.
When comparing the weather in September and June, both months have similar average temperatures, hovering around 21°C (69°F). However, September tends to be slightly warmer with a maximum of 28°C (83°F) compared to June's 29°C (85°F). Precipitation levels differ significantly, with September experiencing 103 mm (4.1 in) over about 10 days, while June sees only 47 mm (1.9 in) across 8 days, resulting in a drier month overall. Additionally, humidity is a bit higher in September at 74%, compared to June’s 71%. For more details on June weather specifically, you can visit Bonassola weather in June.
In comparing the weather of September to that of July, we see notable differences in temperature, precipitation, and humidity. September features a more moderate temperature range, with a minimum of 13°C (55°F) and an average of 21°C (69°F), peaking at a maximum of 28°C (83°F). In contrast, July tends to be warmer, with a minimum of 17°C (62°F), an average of 23°C (74°F), and a maximum reaching 30°C (86°F).
Additionally, September experiences significantly higher precipitation levels, accumulating 103 mm (4.1 inches) over an average of 10 days, while July sees much less rain, with only 33 mm (1.3 inches) falling over just 6 days. Humidity also varies slightly, with September averaging at 74% compared to July's 67%. For more detailed weather insights in July, you can check the link here: Bonassola weather in July.
In comparing the weather of September to August, September experiences a slight drop in temperature, with averages around 21°C (69°F) compared to August's warmer average of 24°C (75°F). The maximum temperatures in September reach up to 28°C (83°F), which is cooler than August's peak of 30°C (87°F). Additionally, September is noticeably wetter, with 103 mm (4.1 in) of precipitation over about 10 days, whereas August sees only 45 mm (1.8 in) over 5 days. The humidity levels also rise in September to 74%, compared to 64% in August. For more detailed insights on August weather, you can check Bonassola weather in August.
In comparing the weather of September and October, we see a noticeable shift in both temperature and precipitation. September enjoys milder temperatures, with a minimum of 13°C (55°F) and an average of 21°C (69°F), while October experiences slightly cooler conditions, with temperatures ranging from a minimum of 11°C (52°F) to an average of 17°C (62°F). Precipitation also increases significantly in October, with 208 mm (8.2 in) over 11 days compared to September's 103 mm (4.1 in) across 10 days, contributing to a higher humidity level of 87% versus September's 74%. For a detailed look at October weather, check out Bonassola weather in October.
September and November present quite a contrast in weather patterns. In September, temperatures are generally milder with minimums of 13°C (55°F), averaging around 21°C (69°F), and reaching a maximum of 28°C (83°F). The month experiences 103 mm (4.1 in) of precipitation spread over about 10 days, with a humidity level of 74%. In contrast, November sees a significant drop in temperatures, with minimums dipping to 6°C (43°F) and an average of just 13°C (55°F), peaking at 19°C (66°F). This month also brings heavier rain, totaling 213 mm (8.4 in) over 17 days, and a higher humidity of 88%. For more detailed insights on November weather, you can check Bonassola weather in November.
September and December present contrasting weather characteristics. In September, temperatures range from a mild 13°C (55°F) at night to a warm 28°C (83°F) during the day, with an average of 21°C (69°F). This month typically sees about 103 mm (4.1 in) of precipitation spread over 10 days and maintains a humidity level of 74%. In contrast, December is significantly cooler, with temperatures dropping to a minimum of 4°C (39°F) and a maximum of only 16°C (60°F), averaging around 10°C (50°F). Additionally, December experiences more rainfall—with 210 mm (8.2 in) falling over 17 days—and a slightly higher humidity level of 85%. For a closer look at the specifics of December weather, you can refer to Bonassola weather in December.
As summer fades into autumn, September in Bonassola offers a gentle transition with pleasantly warm temperatures, averaging around 21°C (69°F). The month is characterized by an inviting mix of sunny days and occasional rain, as precipitation is common but not overwhelming, making it distinct from the hotter, drier summer months. The moderate humidity of 74% adds a slight tropical feel to the air, perfect for enjoying the stunning coastal scenery. For those looking to explore the charming blend of warmth and refreshing breezes, September is truly a delightful time to visit. To learn more about the overall climate, check out Bonassola Climate.