Last updated: March 24, 2025
September in Alghero, Italy showcases a delightful transition into autumn with maximum temperatures reaching a warm 29°C (85°F), while the average settles at a pleasant 23°C (74°F). The evenings cool down to a minimum of 14°C (57°F), providing a comfortable climate for strolls along the picturesque coastline. This month sees light rainfall, with a total precipitation of 47 mm (1.9 in) across about 4 days, maintaining a humidity level of 68% that fosters a refreshing ambiance. It's an ideal time for visitors to experience the vibrant culture and natural beauty of Alghero.
In September, Alghero experiences a delightful transition from the summer heat, with temperatures reaching a comfortable average of 23°C (74°F). The month starts off with minimums around 14°C (57°F) and peaks at a warm maximum of 29°C (85°F), providing the perfect backdrop for exploring the picturesque coastline or enjoying the vibrant local culture. As the days gradually shorten, the warm evenings remain inviting, allowing visitors to savor the lingering summer ambiance. Compared to the scorching summers of July and August, September offers a pleasant reprieve, making it an ideal time for travel enthusiasts to indulge in all that this charming Italian destination has to offer.
September in Alghero sees a moderate shift in precipitation, with an average of 47 mm (1.9 in) of rain falling over approximately 4 days. This marks a noticeable increase compared to the drier summer months, where July and August recorded only 6 mm (0.2 in) and 12 mm (0.5 in), respectively. As the region transitions from the scorching heat of summer to the cooler embrace of autumn, the rain provides a welcomed refreshment for the landscape, setting the stage for the wetter months ahead. Following September, October brings a slight uptick in precipitation to 54 mm (2.1 in), foreshadowing the more dominant rainfall patterns typical of the fall season, as November and December feature significantly higher totals of 129 mm (5.1 in) and 98 mm (3.8 in) respectively. This gradual increase indicates a clear trend towards a wetter climate as the year progresses.
In September, Alghero, Italy experiences a slight increase in humidity, with levels reaching 68%. This marks a small rebound from the summer months, where humidity gradually declines from 79% in January to a refreshing low of 66% in August. As the season transitions into autumn, the humidity begins to rise again, reflecting the cooling temperatures and the approaching rainy season. Over the course of the year, humidity levels fluctuate, showcasing a pattern where the driest months typically occur in summer, while late fall ushers in higher moisture levels, peaking again in winter. This trend highlights Alghero's Mediterranean climate, where humidity plays a significant role in shaping the region's weather dynamics throughout the year.
In September, the UV Index in Alghero, Italy stands at a significant level of 8, categorizing it as very high and resulting in a burn time of just 15 minutes. This marks a slight decrease from the peak summer months of July and August, which both saw a max UV Index of 10. As the season transitions into autumn, sun exposure remains high, emphasizing the importance of protection against harmful rays. Travelers and locals alike should remain vigilant during outdoor activities, as even in September, the potential for skin damage persists. For more details on UV levels throughout the year, you can visit Alghero UV Index.
UV Risk Categories
As the summer wanes and September arrives in Alghero, Italy, the sunshine continues to generously illuminate the coastal landscape, offering 340 hours of warm, inviting light. This month features a gentle dip from the peak of July, which basks in an impressive 427 hours of sun, but still stands strong compared to the earlier months. Following the vibrant summer months of June and August, both over 400 hours, September provides a comfortable transition, as daylight begins to retreat towards the shorter days of autumn. The overall trend reveals a gradual decline in sunshine hours as the year progresses, yet September remains a splendid time to enjoy the lingering warmth and beauty of Alghero’s Mediterranean charm.
As summer transitions into autumn, September in Alghero, Italy, showcases a notable shift in sunshine probabilities. With a 47% chance of sunny weather, the month represents a decline from the peak sun-soaked days of July and August, which boast a striking 76% likelihood. Interestingly, this dip mirrors the overall trend in early autumn, where the sun's presence becomes less certain compared to the vibrant midsummer months. However, September still enjoys more sunshine than the chillier months that follow, making it a pleasant time to experience the mild Mediterranean climate before the cooler temperatures set in.
As summer fades into autumn in Alghero, Italy, September greets residents with a wholesome 12 hours of daylight, striking a balance between the sun-drenched months of June and July, which boast up to 15 hours, and the shorter days of October that follow. This gradual decline marks a shift from the vibrant energy of summer to the gentle transition of fall. Notably, daylight begins to wane after a peak in the middle of the year, inviting locals and visitors to savor the lingering warmth and beauty of early autumn as they enjoy outdoor activities in this picturesque coastal town.
As summer fades into autumn in Alghero, Italy, the September wind gently whispers at an average speed of 3.4 m/s (8 mph), marking a subtle decline from the peak of the season. This slight easterly breeze offers a refreshing change as coastal temperatures begin to cool. Compared to the earlier months of the year, where January experienced a robust 6.5 m/s (15 mph) gust, September’s winds evoke a sense of calm, almost inviting visitors and locals alike to enjoy the tranquil seaside ambience. As the year progresses into October and beyond, a gradual increase in wind speed is anticipated, promising a dynamic transition in the Mediterranean climate. This seasonal ebb and flow not only shapes Alghero's landscape but also enriches its vibrant cultural tapestry.
The weather in Alghero 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 Alghero and find detailed weather information for every month.
September and January exhibit quite different weather patterns. In September, temperatures are generally milder, with averages around 23°C (74°F) and a maximum of 29°C (85°F), coupled with a humidity level of 68%. This month sees relatively low precipitation of 47 mm (1.9 in) spread over about 4 days, making it a pleasant time for outdoor activities. In contrast, January experiences cooler temperatures, with an average of 12°C (53°F) and a maximum of 19°C (66°F). This winter month has a higher precipitation level of 66 mm (2.6 in), occurring over approximately 9 days, and a slightly elevated humidity of 79%. For more details on January weather, check out Alghero weather in January.
In September, the weather is generally warmer and more pleasant, with temperatures ranging from a minimum of 14°C (57°F) to a maximum of 29°C (85°F) and an average of 23°C (74°F). This month experiences about 47 mm (1.9 in) of precipitation over approximately 4 days, paired with a humidity level of 68%. In contrast, February brings cooler temperatures, with a minimum of 5°C (42°F) and a maximum of 21°C (69°F), averaging 12°C (54°F). Precipitation slightly increases to 50 mm (2.0 in) over roughly 6 days, accompanied by a higher humidity of 72%. For more detailed information on weather patterns, check out Alghero weather in February.
In comparing the weather between September and March, September tends to be warmer, with temperatures ranging from a minimum of 14°C (57°F) to a maximum of 29°C (85°F), while March experiences cooler temperatures, with a minimum of 6°C (42°F) and a maximum of 21°C (70°F). Additionally, September has a higher average temperature of 23°C (74°F), compared to March’s average of 13°C (55°F). Precipitation levels are relatively similar, with September receiving 47 mm (1.9 in) over 4 days and March seeing 45 mm (1.8 in) spread across 8 days. Humidity levels are slightly higher in March at 70% compared to September’s 68%. For more specific details about what to expect, you can check Alghero weather in March.
September and April present contrasting weather patterns, reflecting the transition from late summer to early spring. In September, temperatures range from a comfortable minimum of 14°C (57°F) to a warm average of 23°C (74°F), peaking at 29°C (85°F). This month typically sees about 47 mm (1.9 in) of precipitation over just 4 days, with a humidity level of 68%. On the other hand, April experiences cooler conditions, with temperatures dipping to a minimum of 7°C (45°F) and averaging at 15°C (59°F), reaching a maximum of 22°C (72°F). Rainfall totals approximately 38 mm (1.5 in) across 8 days, accompanied by a higher humidity percentage of 74%. For a more detailed look at weather conditions, check out Alghero weather in April.
When comparing the weather in September and May, September offers warmer temperatures with averages around 23°C (74°F) and a maximum of 29°C (85°F), whereas May sees cooler averages of 18°C (65°F) with a peak at 28°C (82°F). Although both months experience a similar amount of precipitation, September typically has fewer rainy days, averaging about 4 days compared to May's 6 days, which leads to slightly lower humidity levels in September at 68%, compared to May's 72%. For more detailed information on the weather conditions during this time, you can check Alghero weather in May.
In comparing the weather of September and June, we see some notable differences. September tends to be slightly warmer on average, with a maximum temperature reaching 29°C (85°F) compared to June's 32°C (89°F). However, June has a higher minimum temperature of 15°C (58°F) compared to September's 14°C (57°F). Rainfall is significantly lower in June, with only 14 mm (0.6 in) of precipitation over 2 days, while September experiences more rain at 47 mm (1.9 in) over 4 days. Humidity levels are quite similar, with September at 68% and June at 70%. For more detailed information, check out Alghero weather in June.
September weather in Alghero features a pleasant range of temperatures, with a minimum of 14°C (57°F) and an average of 23°C (74°F), peaking at a comfortable 29°C (85°F). While it experiences around 47 mm (1.9 in) of precipitation over four days, the humidity remains relatively high at 68%. In contrast, July is warmer overall, with temperatures ranging from a minimum of 19°C (67°F) to an average of 25°C (77°F), reaching a maximum of 33°C (91°F). This month sees significantly less rainfall, only 6 mm (0.2 in) over just one day, and a humidity level slightly higher at 69%. For more detailed information on July weather, you can check Alghero weather in July.
In comparing the weather between September and August, September tends to be slightly cooler, with average temperatures ranging from a minimum of 14°C (57°F) to a maximum of 29°C (85°F), compared to August's warmer range of 19°C (67°F) to 34°C (94°F). While September experiences a moderate increase in precipitation at 47 mm (1.9 in) over about 4 days, August only sees 12 mm (0.5 in) across 2 days. Humidity levels are relatively similar, with September at 68% and August at 66%. For more detailed information on August weather, you can check Alghero weather in August.
September tends to feel warmer with an average temperature of 23°C (74°F) and maximum highs reaching 29°C (85°F). It experiences slightly less precipitation at 47 mm (1.9 inches) over just 4 days, paired with a humidity level of 68%. In contrast, October sees a slight drop in temperatures, averaging 20°C (67°F) with a maximum of 28°C (83°F). The month is rainier, accumulating 54 mm (2.1 inches) of precipitation over 7 days, and the humidity increases to 75%. For a detailed look at what to expect, check out Alghero weather in October.
In September, the weather is typically warmer, with average temperatures reaching around 23°C (74°F) and maximums hitting 29°C (85°F). This month sees relatively low precipitation of 47 mm (1.9 in) spread over just 4 days, along with a humidity level of 68%. In contrast, November brings cooler temperatures, with averages dropping to 16°C (61°F) and a maximum of 23°C (73°F). This month experiences significantly higher precipitation of 129 mm (5.1 in) over 14 days, accompanied by increased humidity at 78%. For more details on November weather conditions, you can check Alghero weather in November.
In comparing the weather between September and December, we see a notable shift in temperatures and precipitation patterns. September enjoys milder conditions, with average temperatures around 23°C (74°F) and maximums reaching up to 29°C (85°F). In contrast, December sees a significant drop, with average temperatures plummeting to 13°C (56°F) and maximums only reaching 19°C (66°F). Additionally, while September experiences 47 mm (1.9 in) of precipitation over just 4 days, December is much wetter, receiving 98 mm (3.8 in) of rain spread across 14 days. As a result, December tends to be more humid as well, with humidity levels rising to 76% compared to 68% in September. For a more detailed look at December weather, you can explore Alghero weather in December.
As September unfolds in Alghero, the weather transitions into a delightful blend of warmth and mildness, distinguishing itself from the sweltering summer months. With comfortable average temperatures hovering around a pleasant 23°C (74°F), this month offers a welcome respite while still allowing for sunny days, perfect for enjoying the beautiful coastal scenery. Unlike the hotter peak months, precipitation becomes more frequent yet remains minimal, with just four rainy days contributing to the overall humidity of 68%. This balance of warmth and reduced rainfall makes September an ideal time for visitors looking to savor the charm of Alghero without the intense heat. For a deeper dive into Alghero's year-round weather patterns, check out Alghero Climate.