Last updated: March 24, 2025
In Ercolano, Italy, September offers a delightful blend of warmth and mildness, with maximum temperatures reaching 28°C (83°F) and an average of 23°C (74°F). As summer transitions to autumn, the evenings can be cooler, dipping to a minimum of 15°C (59°F). Visitors can expect some occasional rainfall, with 96 mm (3.8 in) of precipitation spread over 9 days, contributing to a humidity level of around 65%. This combination creates a refreshing atmosphere ideal for exploring the rich history and stunning landscapes of this charming coastal town.
As summer gracefully transitions into autumn, September in Ercolano brings a delightful warmth that captivates both locals and visitors alike. With average temperatures settling at a pleasant 23°C (74°F), this month boasts a comfortable blend of warmth and cool breezes. The temperature range during this time is inviting, with lows around 15°C (59°F) and highs peaking at 28°C (83°F). This marks a subtle dip from the sweltering August heat, yet it remains warm enough to enjoy leisurely strolls along the coast or uncovering the ruins of Pompeii. As the days shorten, September invites a vibrant tapestry of activities, making it an ideal time to experience the charm of this historic Italian locale while basking in its balmy climate.
In September, Ercolano experiences a noticeable uptick in precipitation, with 96 mm (3.8 in) of rain falling over 9 days. This shift marks a return to wetter weather after the arid summer months of July and August, which both recorded a mere 12 mm (0.5 in). The increase in rainfall not only revitalizes the landscape but also paves the way for the more substantial deluges of autumn, with October and November averaging 100 mm (3.9 in) and 285 mm (11.2 in), respectively. As the transition into fall unfolds, the fluctuating precipitation patterns emphasize the region's climatic shift, where the dry spells of summer yield to the nourishing rains of autumn, preparing Ercolano’s verdant surroundings for the lushness of winter.
In September, Ercolano, Italy, experiences a noticeable shift in humidity, with levels rising to 65% after the summer months. This transition reflects a gradual increase from the drier August, which recorded just 53% humidity, as the region begins to prepare for the wetter autumn season. Throughout the year, Ercolano displays a clear trend of higher humidity in the winter months, peaking at 84% in January and December. However, September serves as a pivotal month, as it marks the beginning of the humidity climb into the fall, setting the stage for the more humid conditions that will follow in October and November. As such, September is a blend of lingering summer warmth tempered by an uptick in moisture, making it an intriguing time for both residents and visitors.
As summer transitions to fall, September in Ercolano, Italy sees a UV Index of 8, categorizing it as very high and necessitating a swift 15-minute exposure limit to avoid sunburn. This dip from the 10 recorded in the peak of July and June indicates a slight easing but still calls for vigilant sun protection. Following a trend from May through August, when the UV levels hovered between 9 and 10, September continues the momentum of high UV intensity, making it essential for residents and visitors to remain cautious outdoors. The gradual decline into October, with an expected UV Index of 6, suggests that while the sun may be less threatening, protective measures should persist. For detailed insights on UV levels throughout the year, visit Ercolano UV Index.
UV Risk Categories
As September arrives in Ercolano, Italy, the sun continues to shine brightly, boasting 336 hours of sunlight. This marks a delightful transition from the scorching heat of summer with July peaking at an impressive 424 hours before gently tapering off into the more temperate months. Throughout the year, there's a distinct pattern: from January's modest 191 hours to the vibrant May and June, which see a remarkable surge in sunshine, reaching 393 and 408 hours respectively. As autumn approaches, September's abundant sunlight lingers yet, providing a warm farewell to the summer days while slowly leading into the softer glow of October with 310 hours. This gradual shift paints a beautiful picture of Ercolano's climate, where each month unfolds its unique charm under the Italian sun.
As summer fades, **September in Ercolano, Italy, offers a moderate 56% chance of sunny weather, making it an appealing time to visit. This month often captures the lingering warmth of August, which boasts a high of 80% sunshine, while transitioning into the cooler fall months. Notably, September's sunlight likelihood is slightly lower than the summer peak but remains significantly higher than the dreary winter months, like December at 51% and November at just 32%. The trend showcases a gradual return to cloudiness as the year progresses, yet September stands out as an excellent choice for those seeking milder weather paired with generous sunshine before the autumn chill sets in.
In Ercolano, Italy, September marks a transition as daylight begins to wane after the sunniest months of summer. With about 12 hours of daylight, this month strikes a balance between the longer days of June and the shorter ones of October. The trend throughout the year reveals a gradual increase in sunlight from January's 9 hours to a peak of 15 hours in June, followed by a gentle decline during the fall months. As summer gives way to autumn, the diminishing daylight in September serves as a gentle reminder of the changing seasons, offering a beautiful backdrop for the vibrant landscapes of the region.
As September sweeps through Ercolano, the gentle caress of the wind takes on a soft, tranquil character, with average speeds dropping to 2.9 m/s (7 mph). This decline follows a trend of gradually diminishing winds throughout the summer months, where the breezy days of July and August lingered at a slightly higher pace of 3.0 m/s and 3.2 m/s, respectively. The fading summer warmth is mirrored in the calming air, inviting residents and visitors alike to embrace the serene atmosphere. However, with October just around the corner, wind speeds are expected to pick up again, signaling the arrival of a new seasonal rhythm in this picturesque Italian town.
The weather in Ercolano 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 Ercolano and find detailed weather information for every month.
September and January present contrasting weather patterns. In September, temperatures range from a mild 15°C (59°F) at night to a warm 28°C (83°F) during the day, with an average of 23°C (74°F). The month typically sees about 96 mm (3.8 in) of rainfall over 9 days and experiences a humidity level of 65%. In contrast, January brings much cooler temperatures, with nighttime lows around 1°C (33°F) and daytime highs reaching a maximum of 17°C (63°F), averaging at 11°C (52°F). Precipitation increases slightly to 116 mm (4.6 in) over 11 days, accompanied by higher humidity levels of 84%. For a detailed look at January weather in this region, you can check Ercolano weather in January.
September features a milder climate with minimum temperatures around 15°C (59°F) and averages peaking at 23°C (74°F), perfect for enjoying outdoor activities. In contrast, February presents a much cooler atmosphere, with temperatures dropping to a minimum of 2°C (37°F) and average highs of just 12°C (53°F). While both months experience similar precipitation days—with September seeing 9 days and February slightly more at 10 days—February has a higher average rainfall of 113 mm (4.5 in) compared to September's 96 mm (3.8 in). Additionally, February's humidity is higher at 76%, contributing to a chillier feel, whereas September maintains a more comfortable humidity level of 65%. For more detailed information about February weather, you can check: Ercolano weather in February.
In September, the weather is generally warm and pleasant, with average temperatures reaching 23°C (74°F) and highs of up to 28°C (83°F). The humidity level sits around 65%, making the air feel comfortable despite an average precipitation of 96 mm (3.8 in) over about 9 days. In contrast, March experiences significantly cooler temperatures, with an average of 12°C (54°F) and maximums only reaching 17°C (63°F). The humidity rises slightly to 69%, while precipitation is close behind September’s figures at 88 mm (3.4 in), spread over about 10 days. For more details on March weather in Ercolano, you can check this link: Ercolano weather in March.
In comparing the weather of September and April, September tends to be warmer, with average temperatures ranging from a minimum of 15°C (59°F) to a maximum of 28°C (83°F). In contrast, April experiences cooler conditions, with average temperatures between 7°C (46°F) and 23°C (74°F). While both months share a similar number of rainy days, September sees higher precipitation levels at 96 mm (3.8 in) compared to April's 51 mm (2.0 in). Additionally, April has slightly higher humidity at 70%, as opposed to September's 65%. For more detailed information about the typical weather in April, you can visit Ercolano weather in April.
September generally offers warmer temperatures compared to May, with average highs reaching 28°C (83°F) versus May's 26°C (79°F). The minimum temperature in September is also higher, starting at 15°C (59°F) compared to May's 11°C (53°F). However, September tends to be wetter, with 96 mm (3.8 in) of precipitation over 9 days, while May sees only 57 mm (2.2 in) across 7 days. Both months have similar humidity levels, with September at 65% and May slightly higher at 70%. For a closer look at the weather patterns in May, you can visit Ercolano weather in May.
When comparing the weather in September and June, some notable differences emerge. September experiences slightly warmer temperatures, with an average of 23°C (74°F) and maximums reaching 28°C (83°F), while June has an average of 22°C (73°F) and a peak of 29°C (84°F). Both months have similar minimum temperatures, with September starting at 15°C (59°F) and June at 16°C (60°F). However, September is significantly wetter, receiving 96 mm (3.8 in) of precipitation over 9 days compared to June's 21 mm (0.8 in) over just 2 days. Humidity levels are comparable, with September at 65% and June slightly lower at 61%. For more details on June weather, you can check the link: Ercolano weather in June.
In comparing the weather between September and July, we observe noticeable differences in temperature and precipitation patterns. September typically experiences milder temperatures, with a minimum of 15°C (59°F) and an average of 23°C (74°F), while July is warmer, featuring a minimum temperature of 21°C (71°F) and an average of 25°C (77°F). Additionally, September sees significantly more precipitation, with 96 mm (3.8 in) over 9 days compared to July's modest 12 mm (0.5 in) over just 2 days. Humidity levels also vary, as September has a higher humidity at 65%, compared to July's 57%. For a more detailed overview of July's climate, you can visit Ercolano weather in July.
In comparison to August, September experiences cooler temperatures, with a minimum of 15°C (59°F) and a maximum of 28°C (83°F) compared to August's minimum of 21°C (70°F) and maximum of 31°C (88°F). While September averages a comfortable 23°C (74°F), it also sees a significant increase in precipitation, with 96 mm (3.8 in) over 9 days, unlike August, which is much drier, averaging only 12 mm (0.5 in) in just 1 day. Additionally, September tends to be more humid, averaging 65% humidity compared to August's 53%. For a more detailed look at the August weather specifics, you can visit Ercolano weather in August.
September weather typically showcases warmer temperatures, with a minimum of 15°C (59°F) and a maximum reaching up to 28°C (83°F), while averaging around 23°C (74°F). This month experiences around 96 mm (3.8 in) of rainfall over about 9 days, accompanied by a humidity level of 65%. In contrast, October begins to cool slightly, with minimum temperatures dropping to 14°C (57°F) and maximums peaking at 25°C (77°F), averaging only 19°C (67°F). The precipitation increases slightly to 100 mm (3.9 in), spread over 10 days, and humidity rises to 75%. For more specifics on October weather, you can check Ercolano weather in October.
In comparing the weather between September and November, it's clear that November experiences cooler temperatures and significantly higher precipitation. September boasts a milder climate with average temperatures around 23°C (74°F) and maximums reaching 28°C (83°F), accompanied by about 96 mm of rainfall over 9 days. In contrast, November sees a drop in average temperature to 16°C (62°F), with maximums peaking at 22°C (72°F) and a notable increase in rainfall, totaling 285 mm over 17 days, and higher humidity at 81%. For a more detailed look at November's climate, check out Ercolano weather in November.
In September, the weather tends to be warm and pleasant, with average temperatures around 23°C (74°F) and maximums reaching up to 28°C (83°F). This month typically sees 96 mm (3.8 in) of precipitation spread over about 9 days, coupled with a humidity level of 65%. In contrast, December brings a significant drop in temperature, with averages around 13°C (56°F) and maximums only reaching 18°C (64°F). The month is much wetter, receiving 206 mm (8.1 in) of rain over approximately 16 days, and humidity rises to 84%. For more detailed insights regarding December weather in Ercolano, check this link: Ercolano weather in December.
As summer transitions into autumn, September in Ercolano presents a delightful blend of warm days and refreshing nights. With maximum temperatures reaching around 28°C, the warmth lingers, but the average cools to a comfortable 23°C, offering a perfect balance for outdoor activities. Unlike the peak summer months, precipitation begins to make an appearance, with rain falling on about nine days, adding a touch of moisture to the air and resulting in 65% humidity. This shift not only enriches the lush surroundings but also sets a more moderate tone compared to the sweltering heat of July and August. For a deeper look into how this lovely coastal town's weather evolves year-round, explore Ercolano Climate.