September Weather in Capri, Italy

Last updated: March 24, 2025

September in Capri, Italy, offers a delightful Mediterranean climate that perfectly balances warmth and mildness. With maximum temperatures reaching up to 27°C (81°F) and an average of 24°C (75°F), visitors can enjoy pleasant days ideal for exploring the island’s stunning landscapes. Evenings can be cooler, with minimum temperatures dropping to 15°C (59°F). While the month experiences about 72 mm (2.8 in) of rainfall over approximately 8 days, the humidity averages around 65%, creating a comfortable atmosphere. Whether you're wandering through charming streets or relaxing by the sea, September provides an enchanting backdrop for unforgettable experiences in Capri.

September Temperature in Capri

As summer gently gives way to fall, September in Capri offers an enchanting climate that invites exploration and relaxation. With minimum temperatures around 15°C (59°F) and averaging a pleasant 24°C (75°F), this month strikes the perfect balance between warm days and cooler evenings. The max temperatures hovering around 27°C (81°F) allow for comfortable beach outings and leisurely strolls through the island's charming streets. Compared to the scorching peak of summer, September presents a delightful transition, where the vibrant crowds begin to thin, offering a more serene experience of this breathtaking Italian gem. Whether you're basking in the sun or enjoying the local cuisine, September in Capri promises a delightful escape into a Mediterranean paradise.

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

The chart illustrates September temperature patterns in Capri, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec535455586572777975686357
Data source: Temperature data for Capri 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 Capri

September marks a transitional phase for Capri, Italy, as the summer warmth begins to wane. With an average precipitation of 72 mm (2.8 in) spread over approximately 8 days, this month sees a noticeable uptick in rain compared to the drier summer months of July and August, which recorded just 11 mm and 8 mm, respectively. This increase is a precursor to the wetter fall season, with October typically bringing 85 mm (3.4 in). Despite this surge, September remains relatively mild, balancing the allure of lingering sun with occasional refreshing rain, making it a time for both relaxation and rejuvenation as the island shifts from summer's end to autumn's embrace.

September Precipitation Trends in Capri

The chart displays monthly precipitation patterns in Capri, 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.
JanFebMarAprMayJunJulAugSepOctNovDec11197794352171187285233179
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Capri

As summer transitions into autumn, September in Capri brings a notable increase in humidity, with levels sitting at a comfortable 65%. This marks a shift from the drier months of July and August, where humidity dipped to a refreshing 57% and 53%, respectively. The early part of the year showcases substantially higher humidity levels, peaking at 84% in January and December, while spring and early summer months remain relatively moderate. Notably, September stands as a bridge, where the lingering warmth of summer still charms visitors amid a soft rise in humidity, setting the stage for the cozy fall months ahead.

September Average Humidity in Capri

This chart illustrates the average monthly humidity levels in Capri, 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 Capri

September in Capri, Italy, sees a UV Index of 8, maintaining a very high exposure category. This means sun lovers should still exercise caution, as the burn time is reduced to 15 minutes. As the summer sun begins to wane, the UV levels drop slightly from the peak in July and June, where the index reached its maximum of 10. However, August and September remain close, with only a nominal decrease, highlighting the persistence of strong UV radiation even as autumn approaches. Travelers should definitely keep sun protection in mind during this vibrant month. For more detailed information, check out the Capri UV Index.

Maximum UV Index Levels in Capri for September

The chart shows the monthly maximum UV Index (UVI) for Capri 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.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098642
Data source: Capri 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 Capri

In September, Capri basks in a delightful 337 hours of sunshine, capturing the vivid essence of early autumn. As the summer crowds begin to dwindle, visitors can still relish the warm rays of sun that linger from the scorching July and August, which boast 424 and 397 hours respectively. This gentle transition to fall offers a unique charm, with the tranquil beaches and stunning landscapes adorned by a softer light. The month marks a notable decrease in sunlight compared to the peak summer months, yet it still shines brightly when compared to the cooler, cloudier days of October and November, making September an ideal time for travelers seeking both warmth and serenity.

Monthly Sunshine Duration in Capri: September Highlighted

The September sunshine duration represents the total number of hours Capri 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.
JanFebMarAprMayJunJulAugSepOctNovDec202h260h324h353h398h409h424h397h337h316h251h247h
Data source: Capri September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Capri During September

September in Capri offers a charming blend of sun and sea, making it an appealing time for visitors. With a 58% chance of sunny weather, this month sits comfortably in the middle of the spectrum, showcasing a transition from the peak summer months of July and August, which boast a robust 81% chance of sunshine. As the heat begins to wane, September invites travelers to enjoy milder temperatures while still basking in plenty of daylight. This delightful balance of sun makes it an ideal time to explore the island’s mesmerizing landscapes and vibrant culture without the summer crowds.

Percentage of Sunny Days in September in Capri

The chart illustrates the percentage of sunny days in Capri 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 Capri experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec37%56%60%49%55%63%81%81%58%44%34%52%
Data source: Capri September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Capri in September

As summer gracefully transitions into autumn, September in Capri experiences a delightful reduction in daylight hours, with the sun gracing the island for about 12 hours each day. This marks a subtle shift from the vibrant 15 hours seen in June, as daylight begins to wane. The trend showcases a gradual tapering of light from the sunniest summer months, with daylight peaking in May and June before gently declining in August and September. While the island bids farewell to the long summer days, the softening light brings a unique charm to Capri, inviting visitors to enjoy its stunning landscapes in a more serene atmosphere. As October approaches, daylight dips further to 11 hours, heralding the arrival of cozy autumn days on this enchanting isle.

Average Daylight Hours in Capri for September

The chart illustrates the variation in daylight duration in Capri throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 37m10h 39m11h 57m13h 18m14h 26m15h 1m14h 43m13h 42m12h 25m11h 4m9h 54m9h 18m
Data source: Capri daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Capri

As September sweeps across Capri, the island experiences a gentle breeze, with an average wind speed of 3.3 m/s (7 mph). This marks a subtle decline from the warmer summer months, reflective of the tranquil transition into autumn. With winds gradually lessening since June, where speeds peaked at 2.9 m/s (7 mph), September offers a serene atmosphere, ideal for leisurely seaside strolls. After the bustling summer crowds, the softer gusts invite visitors to enjoy the island's natural beauty at a slower pace, setting the stage for a peaceful retreat before the winds pick up again in October.

Average September Wind Speed in Capri

The chart displays monthly wind speed patterns in Capri, 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.
JanFebMarAprMayJunJulAugSepOctNovDec6.95.15.04.83.82.93.43.63.3 m/s5.16.26.0
Data source: Capri September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Capri Compares to Other Months

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

In September, the weather is generally warm and pleasant, with average temperatures around 24°C (75°F) and maximums reaching 27°C (81°F). Humidity is moderate at 65%, and while there's some precipitation, it averages 72 mm (2.8 in) over about 8 days. In contrast, January brings a much colder climate, characterized by average temperatures of 12°C (53°F) and maximums only reaching 17°C (63°F). This month also experiences higher precipitation levels, with 111 mm (4.4 in) spread over approximately 11 days, and significantly increased humidity at 84%. For more details on winter conditions, you can visit Capri weather in January.

September and February present contrasting weather patterns that reflect the transition from late summer to early spring. In September, temperatures are generally warmer, with a minimum of 15°C (59°F) and an average of 24°C (75°F), reaching a maximum of 27°C (81°F). The month experiences about 72 mm (2.8 in) of precipitation over 8 days, while humidity hovers around 65%. In stark contrast, February brings cooler temperatures, with a minimum of 3°C (38°F), an average of 12°C (55°F), and a maximum of 17°C (63°F). Precipitation increases to 97 mm (3.8 in) over 10 days, accompanied by a higher humidity level of 76%. For a closer look at the specifics of February weather, you can check Capri weather in February.

September and March present quite different weather patterns. In September, temperatures are generally warmer, ranging from a minimum of 15°C (59°F) to a maximum of 27°C (81°F), with an average of 24°C (75°F). The month experiences around 72 mm (2.8 in) of precipitation over approximately 8 days, accompanied by a humidity level of 65%. In contrast, March showcases cooler temperatures, with a minimum of 5°C (41°F) and a maximum of 17°C (62°F), averaging 13°C (55°F). With slightly higher precipitation at 79 mm (3.1 in) over 9 days and a humidity level of 69%, March can feel a bit more damp and crisp. To explore more about typical conditions during this month, you can visit Capri weather in March.

When comparing the weather in September and April, we observe noticeable differences in temperature and precipitation. September boasts a warmer climate, with average temperatures reaching 24°C (75°F) and highs of 27°C (81°F), while April is cooler, averaging 15°C (59°F) with a maximum of 22°C (72°F). Precipitation is higher in September at 72 mm (2.8 in) over 8 days, compared to April's 43 mm (1.7 in) during the same number of days. Humidity levels are also slightly higher in April at 70%, compared to 65% in September, contributing to the overall feel of each month. For more details on the weather in April, you can check out Capri weather in April.

September's weather is generally warmer than May, with average temperatures reaching 24°C (75°F) compared to May's average of 18°C (65°F). The maximum temperature in September can reach 27°C (81°F), whereas May peaks at 25°C (77°F). September also experiences slightly more precipitation, with 72 mm (2.8 inches) over about 8 days, compared to May's 52 mm (2.0 inches) over 7 days. Additionally, September's humidity is slightly lower at 65%, while May sees a higher humidity level at 70%. For a closer look at Capri's climate, you can visit Capri weather in May.

In comparing the weather between September and June, we notice that September boasts slightly warmer average temperatures, with minimums around 15°C (59°F) and maximums reaching 27°C (81°F), while June has minimums of 17°C (62°F) and a maximum of 28°C (83°F). Interestingly, September experiences more precipitation, with an average of 72 mm (2.8 in) over approximately 8 days, whereas June sees significantly less rainfall at 17 mm (0.7 in) over just 2 days. Humidity levels are comparable, with September at 65% and June slightly lower at 61%. For a detailed overview, you can check out Capri weather in June.

When comparing the weather in September to that of July, we see a noticeable difference in temperature and precipitation. September experiences milder temperatures, with a minimum of 15°C (59°F) and an average of 24°C (75°F), while July is warmer, with minimum temperatures around 22°C (72°F) and an average of 25°C (78°F). Additionally, September has a higher average humidity of 65% compared to July's 57%, contributing to a slightly more sultry feel. Precipitation is more frequent in September, with 72 mm (2.8 in) spread over 8 days, contrasting sharply with July's much drier conditions, which only see 11 mm (0.4 in) over just 2 days. For more detailed insights, you can check out Capri weather in July.

September weather typically sees cooler temperatures compared to August, with minimums dropping from 20°C (69°F) in August to 15°C (59°F) and average highs decreasing from 29°C (85°F) to 27°C (81°F). Despite the warmth, August experiences less precipitation, only 8 mm (0.3 in) on just one day, while September has significantly more rainfall at 72 mm (2.8 in) spread over eight days. Additionally, the humidity levels rise in September to 65%, compared to a more comfortable 53% in August. For those interested in detailed August conditions, you can check Capri weather in August.

In September, the weather tends to be warmer, with average temperatures around 24°C (75°F) and highs reaching up to 27°C (81°F), while October sees a drop in average temperature to 20°C (68°F), with maximums of 24°C (76°F). Additionally, September experiences 72 mm (2.8 inches) of precipitation over about 8 days, whereas October is wetter, receiving 85 mm (3.4 inches) spread over 10 days. The humidity also increases in October, rising to 75% compared to September's 65%. For more detailed information, check out Capri weather in October.

September and November present a stark contrast in weather conditions. In September, temperatures are generally warmer, with minimums around 15°C (59°F) and averages peaking at 24°C (75°F), making it a time for pleasant outdoor activities. The month sees a moderate amount of rainfall, totaling 72 mm (2.8 in) over about 8 days, with humidity levels around 65%.

In contrast, November experiences cooler temperatures, with minimums dropping to 10°C (50°F) and an average of only 17°C (63°F). The month is significantly wetter, with precipitation rising to 232 mm (9.2 in) over 16 days, and humidity increases to 81%. This makes November a much more damp and chilly month, shifting the overall atmosphere. For more details, you can check Capri weather in November.

In September, the weather is generally warm and pleasant, with average temperatures around 24°C (75°F) and maximums reaching 27°C (81°F). The month sees about 72 mm (2.8 in) of precipitation over 8 days, accompanied by a moderate humidity of 65%. In contrast, December brings cooler temperatures, with averages dropping to 14°C (57°F) and maximums only reaching 18°C (65°F). This month experiences significantly more rainfall, totaling 179 mm (7.0 in) spread over 15 days, and the humidity rises to 84%. Those looking for more details can check out Capri weather in December.

Compare Capri's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Capri

September in Capri heralds the transition from the balmy summer heat to the cooler embrace of autumn. With average temperatures hovering around a pleasant 24°C (75°F), visitors can enjoy mild days without the intense heat of peak summer months. However, the island does see an increase in precipitation, typical for this time of year, with about 72 mm (2.8 in) distributed over several days, making it one of the wetter months. This blend of moderate humidity—around 65%—and refreshing breezes creates a unique climate ideal for exploring the island's stunning landscapes. For more detailed insights on weather patterns throughout the year, explore Capri Climate.