September Weather in Alassio, Italy

Last updated: March 24, 2025

In September, Alassio, Italy, offers a delightful climate that invites exploration and relaxation. With maximum temperatures reaching 27°C (80°F) and an average of 21°C (71°F), visitors can enjoy warm, sunny days ideal for beach outings. Nights are pleasantly mild, with minimum temperatures around 15°C (59°F). Although the month brings about 40 mm (1.6 in) of rain over approximately 7 days, the balance of 70% humidity contributes to a refreshing coastal atmosphere. This combination of pleasant warmth and occasional rain makes September an enticing time to experience the beauty of Alassio.

September Temperature in Alassio

In September, Alassio, Italy, begins to transition from the warmth of summer into the gentle embrace of autumn. With minimum temperatures hovering at a comfortable 15°C (59°F) and averages rising to 21°C (71°F), the days are still pleasantly warm, ideal for leisurely beach strolls and exploration of the town. The maximum temperatures, reaching up to 27°C (80°F), maintain a summery vibe, allowing visitors to enjoy outdoor cafes and scenic views along the coastline. As the month progresses, the drop in temperatures hints at the upcoming seasonal change, creating a perfect balance for travelers who wish to experience both the lingering warmth of summer and the refreshing coolness of fall.

September Weather in Alassio: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Alassio, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec505152566270747671645751
Data source: Temperature data for Alassio generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Alassio

In September, Alassio experiences a notable uptick in precipitation, receiving 40 mm (1.6 in) of rain over 7 days. This marks a shift from the dry summer months of July and August, which saw just 36 mm (1.4 in) and a mere 13 mm (0.5 in), respectively. As summer transitions to autumn, the increased rainfall heralds the arrival of wetter conditions. Looking ahead, October typically brings even more precipitation, averaging 122 mm (4.8 in), suggesting that September serves as a gentle precursor to the significant downpours characteristic of the fall season.

September Precipitation Trends in Alassio

The chart displays monthly precipitation patterns in Alassio, with values for each month alongside September's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec60517677662436134012217499
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Alassio

In Alassio, Italy, September marks a subtle transition in humidity, where it rests comfortably at 70%. This level is indicative of the summer's gradual exit and the arrival of autumn, providing a pleasant respite from the more intense humidity of earlier months. Notably, the peak months of January and November experience higher humidity levels at 80%, while the summer months of July and August dip to their lowest at 69% and 68%, respectively. Overall, September's figures reflect a moderate trend, seamlessly bridging the warm, humid summer sensations with the cooler, more invigorating air of fall, making it an appealing time to enjoy Alassio's coastal beauty.

September Average Humidity in Alassio

This chart illustrates the average monthly humidity levels in Alassio, with September's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how September's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec80%72%69%74%75%72%69%68%70%77%80%76%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Alassio

In September, Alassio experiences a high UV Index of 7, making it essential for sun seekers to remain vigilant during outdoor activities. This marks a slight decline from the very high levels of summer, where the UV Index peaked at 9 in July and June. With a burn time of 25 minutes, it’s crucial to reapply sunscreen frequently and seek shade during peak hours. The trend shows that as summer transitions into autumn, while UV levels drop, they're still significant enough to warrant attention. For more detailed information on UV conditions throughout the year, visit Alassio UV Index.

Maximum UV Index Levels in Alassio for September

The chart shows the monthly maximum UV Index (UVI) for Alassio in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec246789987532
Data source: Alassio September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

September Sunshine in Alassio

In September, Alassio basks in 340 hours of sunshine, marking a delightful transition from the intense summer heat to the mild embrace of autumn. Following the peak of 426 hours in July, the sun gradually retreats, yet the warmth remains inviting, ensuring that beachgoers can still enjoy the picturesque coastline. As the season shifts, the sun-drenched days of August taper to a comfortable glow, reminiscent of a less frenetic time, with daylight lingering just enough for leisurely strolls and vibrant sunsets. This trend of diminishing sunlight is echoed in the months that follow, yet September still stands as a testament to the lingering vitality of summer, allowing visitors to relish the beauty of Alassio as it gradually transitions into the quieter charm of fall.

Monthly Sunshine Duration in Alassio: September Highlighted

The September sunshine duration represents the total number of hours Alassio experiences direct sunlight during the month of September, excluding cloudy or obstructed periods. This chart compares the sunshine duration of September with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec191h237h316h343h392h410h426h397h340h299h233h230h
Data source: Alassio September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Alassio During September

As summer gradually gives way to autumn, September in Alassio maintains a 50% chance of sunny weather, striking a balance between the hotter summer months and the cooler days ahead. This level of sunshine is consistent with August’s 60%, showcasing a slight dip in sunny days but still offering ample opportunities for outdoor activities. The trend of sunny days peaks during the summer, but September stands out as a pleasant transitional month, where visitors can still bask in mild temperatures and bright skies. Following September, October offers a better 55% chance of sun, indicating that the charm of Alassio's weather continues to linger well into the autumn season. Overall, those planning a visit in September can look forward to enjoying the sun amidst a beautiful coastal landscape.

Percentage of Sunny Days in September in Alassio

The chart illustrates the percentage of sunny days in Alassio throughout the year, with September highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Alassio experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec39%48%64%47%43%52%52%60%50%56%42%56%
Data source: Alassio September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Alassio in September

As summer gracefully fades, September in Alassio, Italy, offers a delightful transition with approximately 12 hours of daylight. This marks a subtle shift from the sun-drenched days of July and August, which basked in a generous 15 hours. The gradual reduction in daylight is reflective of the approaching autumn, as the vibrant coastal town prepares for the cooler months ahead. Notably, September remains vibrant and lively, with slightly more daylight than in October, which dips down to 10 hours. This period continues to provide ample opportunity for outdoor activities and enjoying the stunning Mediterranean views, making it a cherished month for both locals and visitors.

Average Daylight Hours in Alassio for September

The chart illustrates the variation in daylight duration in Alassio throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 18m10h 28m11h 56m13h 27m14h 45m15h 24m15h 3m13h 55m12h 27m10h 57m9h 37m8h 56m
Data source: Alassio daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Alassio

In September, Alassio experiences a gentle breeze averaging 3.3 m/s (7 mph), creating a serene backdrop as summer transitions to autumn. This slight uptick from the calm of July and August, where winds hovered around 2.8 m/s (6 mph) and 3.2 m/s (7 mph), indicates a subtle revitalization in the coastal air. As the month progresses, the wind speeds begin to hint at the more vibrant gusts that October and November will bring, with their averages escalating to 4.9 m/s (11 mph) and 6.4 m/s (14 mph) respectively. Thus, September offers a perfect balance, where mild winds complement the warm Italian sun, making it an ideal time for strolls along the picturesque seaside.

Average September Wind Speed in Alassio

The chart displays monthly wind speed patterns in Alassio, with values for each month shown alongside September's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how September's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.84.73.94.13.43.02.83.23.3 m/s4.96.43.7
Data source: Alassio September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Alassio Compares to Other Months

The weather in Alassio 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 Alassio and find detailed weather information for every month.

In September, the weather is generally mild and pleasant, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 27°C (80°F), and an average temperature of 21°C (71°F). There's relatively low precipitation at 40 mm (1.6 in) over about 7 days, and humidity levels around 70%. In contrast, January experiences much cooler temperatures, with a range from a minimum of 4°C (40°F) to a maximum of 16°C (62°F), averaging just 10°C (50°F). The month sees more precipitation at 60 mm (2.4 in) over 6 days and higher humidity at 80%, making for a distinctly colder and wetter experience. For more detailed information, check out Alassio weather in January.

September and February present contrasting weather experiences. In September, temperatures are generally warmer, with a minimum of 15°C (59°F) and an average of 21°C (71°F), reaching up to a maximum of 27°C (80°F). The month typically sees about 40 mm (1.6 in) of precipitation spread over 7 days, with a humidity level around 70%. In contrast, February is much cooler, with temperatures ranging from a minimum of 0°C (33°F) to an average of 10°C (51°F) and a maximum of 17°C (63°F). Precipitation increases to 51 mm (2.0 in) over 8 days, and humidity rises slightly to 72%. For a detailed look at February conditions, you can explore Alassio weather in February.

When comparing the weather in September to that of March, a distinct shift in temperatures and precipitation patterns can be observed. September enjoys milder temperatures, ranging from a minimum of 15°C (59°F) to a maximum of 27°C (80°F), with an average of 21°C (71°F). The month sees approximately 40 mm (1.6 in) of precipitation over about 7 days, coupled with a humidity level of 70%.

In contrast, March experiences cooler temperatures, with a minimum of 0°C (33°F), an average of 11°C (53°F), and a maximum of 18°C (64°F). It is also a wetter month, receiving 76 mm (3.0 in) of rainfall over 8 days and slightly lower humidity at 69%. For more detailed information about the conditions in March, you can visit Alassio weather in March.

September and April both display distinct weather characteristics, with September typically offering warmer temperatures. In September, the minimum temperature is around 15°C (59°F), with an average of 21°C (71°F) and a maximum of 27°C (80°F), while April starts cooler, with a minimum of 6°C (44°F) and an average of 14°C (57°F), peaking at 21°C (70°F). Interestingly, April experiences more precipitation, totaling 77 mm (3.0 in) over 7 days, compared to September's 40 mm (1.6 in) under similar conditions. Humidity levels are slightly higher in April at 74%, compared to September's 70%. For a detailed look at the weather specifics in April, check out Alassio weather in April.

When comparing the weather in September and May, both months experience similar maximum temperatures peaking at around 27°C (81°F), but the overall climate differs significantly. September boasts a milder average temperature of 21°C (71°F), while May is cooler, averaging just 17°C (62°F). Additionally, May tends to be wetter, with 66 mm (2.6 in) of precipitation over 9 days, compared to September's 40 mm (1.6 in) spread over only 7 days. Humidity is slightly higher in May at 75%, compared to September's 70%. For more detailed information on the weather during this month, you can visit Alassio weather in May.

In June, the weather starts to warm up, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 29°C (84°F) and an average of 21°C (70°F). The month typically experiences lower precipitation, averaging around 24 mm (0.9 in) over about 5 rainy days and a humidity level of 72%. In contrast, September sees a slight drop in maximum temperatures to 27°C (80°F), while maintaining a similar average of 21°C (71°F). The month also experiences increased rainfall, with about 40 mm (1.6 in) spread over 7 days and a humidity level of 70%. For more insights into the specific weather conditions, check out Alassio weather in June.

In comparing the weather of September and July, we observe a gradual transition in temperature and precipitation patterns. September features a minimum temperature of 15°C (59°F) and an average of 21°C (71°F), while July consistently maintains warmer conditions with a minimum of 18°C (65°F) and an average of 23°C (74°F). Although both months exhibit a similar level of humidity, September tends to have slightly higher humidity at 70% compared to July's 69%. Furthermore, September experiences a bit more rainfall, with 40 mm (1.6 in) over 7 days, while July sees 36 mm (1.4 in) across just 5 days. For more detailed information, you can visit Alassio weather in July.

In comparing the weather of September and August, we notice a distinct shift in conditions. September sees a slightly cooler temperature range, with a minimum of 15°C (59°F) and a maximum of 27°C (80°F), averaging 21°C (71°F), while August boasts warmer temperatures, dipping only to 18°C (65°F) and peaking at 30°C (86°F) with an average of 24°C (76°F). Rainfall also plays a significant role, as September experiences more precipitation at 40 mm (1.6 in) over 7 days, compared to August's mere 13 mm (0.5 in) over 3 days. Additionally, September's humidity is marginally higher at 70%, while August sits at 68%. For more details on August weather specifically, you can refer to Alassio weather in August.

September tends to be warmer, with average temperatures ranging from a mild 15°C (59°F) at night to a pleasant 27°C (80°F) during the day, while October brings cooler temperatures, with a minimum of 11°C (52°F) and a maximum of 23°C (74°F). Additionally, October experiences significantly higher precipitation, totaling 122 mm (4.8 in) over 8 days, compared to September's 40 mm (1.6 in) over 7 days. Humidity also increases slightly in October, reaching 77%, compared to September's 70%. For a detailed look at October's conditions, visit Alassio weather in October.

September typically offers warmer weather compared to November, with average temperatures ranging from a minimum of 15°C (59°F) to a maximum of 27°C (80°F). The month experiences moderate precipitation of 40 mm (1.6 in) over about 7 days, accompanied by a humidity level of 70%. In contrast, November sees much cooler temperatures, with averages between 7°C (45°F) and 19°C (66°F). The month is significantly wetter, with precipitation totaling 174 mm (6.8 in) spread over 14 days and increased humidity at 80%. For more detailed insights, check out Alassio weather in November.

September and December exhibit distinct differences in weather patterns. September tends to be warmer, with average temperatures ranging from a minimum of 15°C (59°F) to a maximum of 27°C (80°F) and an average of 21°C (71°F). In contrast, December experiences cooler temperatures, with averages between 3°C (38°F) and 17°C (62°F), yielding a lower average of 11°C (52°F). Additionally, December sees higher precipitation levels, totaling 99 mm (3.9 in) over 8 days, while September's rainfall is lighter at 40 mm (1.6 in) across 7 days. The humidity is slightly higher in December at 76%, compared to September's 70%. For more detailed information, you can check Alassio weather in December.

Compare Alassio's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Alassio

As summer gracefully transitions into autumn, September in Alassio brings a delightful blend of warmth and mildness. With average temperatures hovering around a comfortable 21°C (71°F), this month is noticeably cooler than the sizzling peak of July and August, creating an ideal atmosphere for outdoor exploration. While the occasional rain showers—totaling approximately 40 mm over about seven days—refresh the landscape, the overall humidity remains at a pleasant 70%. This combination of comfortable warmth and occasional refreshing rain makes September uniquely charming, perfect for savoring the last hints of summer before the crispness of fall settles in. To learn more about what to expect throughout the year, visit Alassio Climate.