September Weather in Atrani, Italy

Last updated: March 24, 2025

September in Atrani, Italy offers a delightful blend of warm Mediterranean charm and refreshing coastal breezes. With maximum temperatures reaching 29°C (85°F) and an average of 22°C (72°F), visitors can enjoy pleasant days under the sun. However, the month is also characterized by occasional rain, receiving 96 mm (3.8 in) of precipitation over approximately 10 days, contributing to the region's lush landscapes. Humidity levels hover around 65%, enhancing the vibrant atmosphere. This transitional period from summer to autumn invites both relaxation and exploration, making Atrani a captivating destination this time of year.

September Temperature in Atrani

As summer gently transitions into autumn, Atrani, Italy experiences a delightful shift in temperatures throughout September. With minimums around 13°C (56°F) and average highs peaking at 29°C (85°F), the month offers a warm embrace without the oppressive heat of peak summer. The average temperature of 22°C (72°F) strikes a perfect balance, making it an ideal time for leisurely strolls along the coastline or enjoying the vibrant local culture. This gradual cooling hints at the approaching fall, yet September still retains a taste of summer's warmth, providing a perfect backdrop for exploration and relaxation in this picturesque Mediterranean town.

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

The chart illustrates September temperature patterns in Atrani, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec495152576372777872655952
Data source: Temperature data for Atrani generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Atrani

September in Atrani, Italy, marks a notable increase in precipitation as summer transitions into autumn. With 96 mm (3.8 in) of rain over 10 days, it serves as a reminder of the Mediterranean climate's variability. This spike follows the notably dry months of July and August, which brought only 16 mm (0.6 in) and 21 mm (0.8 in) of rain, respectively. Interestingly, the increase in rainfall as September progresses is a precursor to the much wetter months to come, with October and November averaging over 100 mm of precipitation. As such, September often acts as a bridge between the drier summer months and the impending rainfall that defines the later part of the year.

September Precipitation Trends in Atrani

The chart displays monthly precipitation patterns in Atrani, 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.
JanFebMarAprMayJunJulAugSepOctNovDec114125103577027162196104258200
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Atrani

In September, Atrani experiences a noticeable shift in humidity, averaging at 65%, which marks a gentle return to the moister air typical of autumn. Following the summer's driest months—July and August, where humidity levels plummet to 57% and 53% respectively—September's increase serves as a reminder of the region's lush coastal climate. As temperatures begin to cool, humidity gradually rises, paving the way for a more comfortable atmosphere. This trend continues into the fall, with October seeing a further uptick to 75%. Thus, September stands as a transitional month, blending the sun-kissed days of summer with the refreshing, crisp air of the approaching season.

September Average Humidity in Atrani

This chart illustrates the average monthly humidity levels in Atrani, 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.
JanFebMarAprMayJunJulAugSepOctNovDec84%76%69%70%70%61%57%53%65%75%82%84%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Atrani

As summer fades into autumn, September in Atrani, Italy showcases a UV Index of 8, categorized as very high, which means sun protection is crucial, especially during this time when burn time is reduced to just 15 minutes. This trend reflects a gradual decrease from the peak summer months of July and August, both at a UV Index of 10, yet still maintains a significant level of sun intensity. With the UV levels declining from the scorching heights of summer, early fall remains a time to enjoy the sun, but vigilance is key to safeguarding your skin. For a complete understanding of how to stay protected, visit Atrani UV Index.

Maximum UV Index Levels in Atrani for September

The chart shows the monthly maximum UV Index (UVI) for Atrani 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.
JanFebMarAprMayJunJulAugSepOctNovDec34679101098642
Data source: Atrani 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 Atrani

In September, Atrani, Italy, basks in the glow of 336 hours of sunshine, a delightful continuation of the summer warmth. As the long, sun-drenched days of July peak at 424 hours, the sunlight begins to gracefully decline, but September still offers a robust balance of brightness compared to the rest of the year. This month’s sun hours are significantly higher than the gloomy 241 hours seen in November, marking a smooth transition into autumn. It’s a picturesque time, where the lingering summer vibes can still be felt in the scenic coastal village, making it an ideal moment for visitors to relish the beauty of Atrani before the days shorten further.

Monthly Sunshine Duration in Atrani: September Highlighted

The September sunshine duration represents the total number of hours Atrani 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.
JanFebMarAprMayJunJulAugSepOctNovDec191h252h316h351h393h408h424h397h336h310h241h237h
Data source: Atrani September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Atrani During September

As September arrives in Atrani, Italy, the likelihood of sunny weather remains promising, with a 56% chance of sunshine. This marks a noticeable shift from the peak summer months of July and August, which boast impressive probabilities of 78% and 79% respectively. Interestingly, as the holiday season transitions into autumn, the sun still holds a strong presence, although the odds of clear skies slightly dip. Compared to the cooler months ahead, such as October and November, where sunshine chances drop significantly to 42% and 30%, September offers a delightful window for enjoying the lingering warmth and vibrant beauty of the coast before the winter chill sets in.

Percentage of Sunny Days in September in Atrani

The chart illustrates the percentage of sunny days in Atrani 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 Atrani experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec34%55%57%46%49%61%78%79%56%42%30%47%
Data source: Atrani September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Atrani in September

As the warm summer days of Atrani, Italy, transition into the gentle embrace of autumn, September reflects a delightful balance with 12 hours of daylight. This month marks a gradual decline from the sun-drenched 15 hours in June, allowing visitors to savor the last echoes of summer. The daylight trend shows a steady increase from 9 hours in January to a peak in June, followed by a slow taper as the seasons shift. With 12 hours of daylight in September, the picturesque coastal town continues to bask in sunlight, offering the perfect backdrop for leisurely strolls and stunning sunset views, embracing the beauty of nature as it prepares for the cooler months ahead.

Average Daylight Hours in Atrani for September

The chart illustrates the variation in daylight duration in Atrani throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 36m10h 38m11h 57m13h 18m14h 27m15h 2m14h 43m13h 43m12h 25m11h 4m9h 53m9h 17m
Data source: Atrani daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Atrani

As summer fades into autumn, September in Atrani, Italy welcomes a gentle breeze, with average wind speeds dipping to 2.5 m/s (6 mph). This tranquil change marks a shift from the warmer months, as the winds gradually decrease from the earlier highs of 4.8 m/s (11 mph) in January to more serene autumnal currents. The wind's soft presence in September, coupled with the stunning coastal views, creates an inviting atmosphere perfect for leisurely strolls along the picturesque Amalfi coastline. In comparison, the breezier months of October and November, which experience notable increases in wind speed, hint at the upcoming seasonal transitions, yet September's calm offers a perfect balance of warmth and refreshment.

Average September Wind Speed in Atrani

The chart displays monthly wind speed patterns in Atrani, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.83.63.63.52.92.22.42.72.5 m/s3.74.24.1
Data source: Atrani September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Atrani Compares to Other Months

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

In September, the weather is notably warmer, with average temperatures around 22°C (72°F) and maximums reaching up to 29°C (85°F), while January sees much cooler temperatures, with an average of just 9°C (49°F) and maxes of 18°C (64°F). September also experiences lower humidity at 65%, compared to January's higher level of 84%. Precipitation is relatively similar, with September receiving 96 mm (3.8 in) over about 10 days, and January slightly wetter with 114 mm (4.5 in) across 11 days. For a detailed look at January weather, you can check Atrani weather in January.

In September, the weather is generally warmer, with average temperatures ranging from a minimum of 13°C (56°F) to a maximum of 29°C (85°F), while February sees much cooler temperatures, peaking at 17°C (63°F) with a minimum of just 1°C (34°F). Although both months experience precipitation on about 10 days, February is wetter, with 125 mm (4.9 in) compared to September's 96 mm (3.8 in). Additionally, February tends to be more humid at 76%, in contrast to September's relative humidity of 65%. For a closer look at February conditions, check out Atrani weather in February.

September and March showcase distinctly different weather patterns. In September, temperatures range from a mild 13°C (56°F) at night to a warm average of 22°C (72°F) during the day, peaking at 29°C (85°F). The month experiences moderate rainfall, accumulating 96 mm (3.8 in) over about 10 days, with humidity around 65%. In contrast, March is much cooler, with temperatures dipping to a minimum of -1°C (31°F) and only reaching an average of 11°C (52°F), maxing out at 19°C (67°F). Despite slightly higher precipitation at 102 mm (4.0 in) across 11 days, March's humidity is marginally higher at 69%. For more detailed insights into March weather, you can visit Atrani weather in March.

September typically features warmer temperatures, with minimums around 13°C (56°F) and maximums reaching up to 29°C (85°F), while April starts cooler with temperatures dipping down to a minimum of 5°C (41°F) and maxing out at 25°C (78°F). Additionally, September experiences more precipitation, averaging 96 mm (3.8 in) compared to April's 57 mm (2.2 in), although both months see rain on about 10 days. Humidity remains fairly high in both months, but with September at 65% and April slightly higher at 70%. For more specific details on April weather, you can check Atrani weather in April.

In September, the weather tends to be warmer than in May, with average temperatures reaching 22°C (72°F) compared to May's average of 17°C (64°F). September also sees higher maximum temperatures, peaking at 29°C (85°F) versus May's maximum of 27°C (81°F). However, September experiences more precipitation, with 96 mm (3.8 in) over 10 days, while May receives 70 mm (2.7 in) across just 8 days. Humidity levels are slightly higher in May at 70%, compared to 65% in September. For more details on May weather in Atrani, you can check Atrani weather in May.

When comparing the weather in September and June, you'll find some notable similarities and differences. Both months have an average temperature of around 22°C (72°F), but September sees slightly cooler minimum and maximum temperatures, ranging from 13°C (56°F) to 29°C (85°F), while June features a minimum of 14°C (57°F) and a maximum of 30°C (86°F).

Precipitation levels significantly differ, with September receiving 96 mm (3.8 in) over 10 days, indicating a wetter climate compared to June, which only experiences 27 mm (1.1 in) of rain over just 4 days. Humidity levels are also similar, with September at 65% and June at 61%. For a closer look at June weather, you can check out Atrani weather in June.

In comparing the weather between September and July, September tends to be cooler with a minimum temperature of 13°C (56°F) compared to July's minimum of 19°C (67°F). The average temperatures are also lower in September, at 22°C (72°F), versus 25°C (77°F) in July. While July enjoys relatively dry conditions with only 16 mm (0.6 in) of precipitation over 2 days, September sees a significant increase in rainfall, totaling 96 mm (3.8 in) over 10 days. Additionally, humidity levels in September are higher at 65%, compared to 57% in July. For more detailed insights into the climate, you can check out Atrani weather in July.

In comparing the weather between August and September, September tends to be cooler, with average temperatures ranging from a minimum of 13°C (56°F) to a maximum of 29°C (85°F), while August features warmer averages from 19°C (66°F) to 32°C (90°F). Additionally, September experiences significantly more precipitation, totaling 96 mm (3.8 in) over 10 days, in contrast to August's relatively dry conditions with only 21 mm (0.8 in) over 3 days. Humidity levels also rise in September, reaching 65% compared to August's lower average of 53%. For more detailed information, you can check Atrani weather in August.

September typically enjoys warmer temperatures, with averages reaching up to 22°C (72°F) and maximums peaking at 29°C (85°F). In contrast, October sees a drop in average temperature to 18°C (65°F) and maximums of 25°C (78°F). While both months experience similar rainfall, October records slightly higher precipitation at 104 mm (4.1 in) compared to September's 96 mm (3.8 in), and humidity increases from 65% in September to 75% in October. For more detailed information, check out Atrani weather in October.

September and November exhibit significant differences in weather patterns. In September, temperatures are generally milder, with a minimum of 13°C (56°F) and an average of 22°C (72°F), peaking at a maximum of 29°C (85°F). This month also experiences relatively lower precipitation, with 96 mm (3.8 in) over about 10 days and a humidity level of 65%.

In contrast, November sees a noticeable drop in temperatures, with minimums of 5°C (41°F) and an average of 15°C (59°F), reaching a maximum of 22°C (71°F). The month is much wetter, receiving 258 mm (10.2 in) of rain across approximately 17 days, and it often feels more humid, with levels rising to 81%. For more detailed insights into November weather, check out Atrani weather in November.

In September, the weather is typically warm, with average temperatures around 22°C (72°F) and maximums reaching up to 29°C (85°F). This month experiences moderate rainfall, totaling around 96 mm (3.8 in) over approximately 10 days, with a relative humidity of 65%. In contrast, December brings significantly cooler temperatures, with an average of 11°C (53°F) and highs only reaching 17°C (64°F). The winter month is wetter, with precipitation rising to 200 mm (7.9 in) spread over about 15 days, and humidity increasing to 84%. For more details on December weather, you can check Atrani weather in December.

Compare Atrani's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Atrani

As summer gives way to autumn, September in Atrani offers a delightful blend of warmth and mildness, making it distinct from the hotter months preceding it. While the maximum temperatures remain comfortably warm, the transition brings cooler evenings and a sense of refreshing change. Travelers can expect an average humidity of 65%, contributing to a pleasant yet sometimes damp atmosphere as rainfall becomes slightly more frequent. With approximately 10 days of precipitation, September's weather is a lovely balance that invites outdoor exploration without the intense heat of peak summer. For those interested in understanding Atrani's weather patterns throughout the year, check out the detailed insights at Atrani Climate.