September Weather in Gaeta, Italy

Last updated: March 24, 2025

In September, Gaeta, Italy, offers a delightful mix of warm temperatures and refreshing coastal breezes. With daily highs averaging 29°C (84°F) and lows dipping to 13°C (56°F), visitors can enjoy comfortable days and pleasant evenings. The month sees an average temperature of 22°C (73°F), ideal for exploring the charming town and its picturesque beaches. However, be prepared for some rain, as 102 mm (4.0 in) of precipitation is typically spread over 7 days, complemented by a moderate humidity level of 65%. Whether you're lounging by the sea or discovering historic sites, September in Gaeta is a perfect blend of warmth and scenic beauty.

September Temperature in Gaeta

As September unfolds in Gaeta, Italy, it offers a delightful transition from the peak summer warmth to a more temperate embrace. With minimum temperatures around 13°C (56°F) and daytime highs reaching 29°C (84°F), the month showcases an inviting average of 22°C (73°F). These pleasant conditions provide the perfect backdrop for exploring the stunning coastlines and charming streets without the extreme heat of August. Notably, September marks a gentle decline from the summer highs, setting the stage for a cozy autumn ahead while still inviting visitors to soak in the sun’s rays. This balance of warmth and refreshment epitomizes the beauty of early fall in this picturesque Italian locale.

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

The chart illustrates September temperature patterns in Gaeta, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec495152576472777872655952
Data source: Temperature data for Gaeta 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 Gaeta

September in Gaeta, Italy, marks a notable shift in precipitation patterns as the summer dry spell begins to wane. With 102 mm (4.0 in) of rainfall over 7 days, the month sees a significant increase compared to the drier months of July and August. This uptick in precipitation is a precursor to the heavier rains of autumn, showcasing a return to more balanced weather. Interestingly, the rainfall in September is slightly higher than March and April, hinting at a potential trend of increased early autumn moisture. As the transition into October approaches, Gaeta prepares for even more substantial rains, making September a pivotal month for the region’s climate.

September Precipitation Trends in Gaeta

The chart displays monthly precipitation patterns in Gaeta, 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.
JanFebMarAprMayJunJulAugSepOctNovDec96115946465301611103116316209
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Gaeta

September in Gaeta, Italy, marks a subtle shift in humidity as summer wanes and autumn approaches. With an average humidity of 65%, the month experiences a noticeable uptick from the drier summer months of July and August, which see levels dip to 57% and 53%, respectively. The humidity in September is somewhat higher than the preceding months, reflecting the transition toward more comfortable and crisp conditions in the fall. This slight increase helps to bridge the humid warmth of summer and the coming cooler months, as October's humidity climbs back to 75%. Overall, September serves as a refreshing interlude, balancing warmth and moisture in this charming coastal town.

September Average Humidity in Gaeta

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

In September, Gaeta, Italy experiences a moderate to high UV Index, registering a value of 7, which indicates a high exposure category. As summer draws to a close, the risk of harm from unprotected sun exposure decreases compared to the peak summer months, but caution is still advised, with a recommended burn time of just 25 minutes. This aligns with the overall trend of gradually declining UV levels from the intense summer peak of 10 in July and June. However, the UV Index remains higher than the earlier months of the year, highlighting the need for sun protection even as the season shifts. For further details on UV Index trends and safety tips, check out Gaeta UV Index.

Maximum UV Index Levels in Gaeta for September

The chart shows the monthly maximum UV Index (UVI) for Gaeta 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.
JanFebMarAprMayJunJulAugSepOctNovDec34579101097642
Data source: Gaeta 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 Gaeta

September in Gaeta, Italy, is a beautiful transition from the vibrant summer to the mellow autumn months, boasting 337 hours of sunshine. After the peak summer months, where July shines the brightest with 427 hours, September still holds onto the warm glow, significantly surpassing the earlier months of the year. This month witnesses a gentle decline in sunshine as it bids farewell to the height of summer, yet it remains a delightful period for visitors seeking pleasant weather and stunning coastal views. As the sun begins to set earlier, the golden hues of September evenings add a charming touch, making it a perfect time to explore this enchanting seaside town before the cooler days of October arrive with 313 hours of sunlight.

Monthly Sunshine Duration in Gaeta: September Highlighted

The September sunshine duration represents the total number of hours Gaeta 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.
JanFebMarAprMayJunJulAugSepOctNovDec197h259h323h350h397h411h427h398h337h313h244h244h
Data source: Gaeta September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Gaeta During September

In Gaeta, Italy, the likelihood of sunny weather in September stands at a promising 54%, reflecting a nice transition from the high summer months. As the summer fades, the chances of sunshine dip slightly from August’s peak of 76%, yet September still offers a good balance of sunny days, making it an ideal time for outdoor exploration before the cooler autumn sets in. This trend highlights a consistent pattern where the months of June through August are the sunniest, while early fall maintains a decent probability of pleasant weather. With the charm of sun-drenched scenery against the backdrop of stunning coastal views, September remains a favorable choice for those seeking a taste of Mediterranean warmth without the peak season crowds.

Percentage of Sunny Days in September in Gaeta

The chart illustrates the percentage of sunny days in Gaeta 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 Gaeta experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec32%53%55%41%49%58%75%76%54%42%31%50%
Data source: Gaeta September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Gaeta in September

In September, Gaeta, Italy, enjoys a gentle transition as daylight begins to shorten, offering 12 hours of sunlight. Following the vibrant summer months of June and July, which bask in a generous 15 hours and 14 hours of daylight respectively, September marks a soft decline into autumn. As the days gradually shorten, this month provides a delightful balance that still allows locals and visitors to savor the beauty of the beach and stunning coastal views, but with the allure of cooler evenings. The gradual decrease continues into October with 11 hours of daylight, paving the way for the retreating sunlight in the months ahead, ultimately leading back to the shorter winter days in November and December.

Average Daylight Hours in Gaeta for September

The chart illustrates the variation in daylight duration in Gaeta throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 34m10h 37m11h 57m13h 20m14h 29m15h 5m14h 46m13h 44m12h 25m11h 3m9h 51m9h 14m
Data source: Gaeta daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Gaeta

As summer fades in Gaeta, Italy, September ushers in a gentle breeze with an average wind speed of 2.3 m/s (5 mph), making it one of the calmer months of the year. This slight decrease from August's 2.9 m/s reflects a broader trend of diminishing winds as one transitions from the warmer months into fall. Throughout the year, Gaeta's winds tend to peak in the colder months, such as November, where they reach an average of 3.9 m/s (9 mph), while summer months like June and July exhibit notably lighter breezes. September's subdued winds create a serene atmosphere ideal for enjoying the picturesque coastal views and leisurely strolls along the waterfront, highlighting the seasonal shift towards a more tranquil landscape.

Average September Wind Speed in Gaeta

The chart displays monthly wind speed patterns in Gaeta, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.03.12.93.03.02.42.72.92.3 m/s2.93.93.2
Data source: Gaeta September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Gaeta Compares to Other Months

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

September typically boasts a warmer climate with average temperatures around 22°C (73°F) and highs reaching up to 29°C (84°F), making it a pleasant time for outdoor activities. In contrast, January presents significantly cooler conditions, with average temperatures dropping to 9°C (49°F) and lows plummeting to -2°C (29°F). While both months see a fair amount of precipitation, September experiences 102 mm (4.0 in) over approximately 7 days, compared to January's 96 mm (3.8 in) spread over 10 days. Additionally, January tends to be more humid, with levels at 84%, compared to September's 65% humidity. For a detailed look at January weather in Gaeta, you can visit Gaeta weather in January.

In September, the weather is generally warm, with average temperatures ranging from a minimum of 13°C (56°F) to a maximum of 29°C (84°F), and an overall pleasant average of 22°C (73°F). However, it also experiences some rainfall, with about 102 mm (4.0 in) spread over 7 days and a humidity level of 65%. In contrast, February is much cooler, with temperatures ranging from a chilly minimum of -1°C (31°F) to a maximum of 17°C (62°F) and an average of 11°C (51°F). February sees slightly more rainfall, totaling 115 mm (4.5 in) over 10 days, and higher humidity at 76%. For a detailed look at February's weather in Gaeta, visit Gaeta weather in February.

September and March present distinctly different weather patterns. In September, temperatures range from a pleasant minimum of 13°C (56°F) to a comfortable maximum of 29°C (84°F), with an average of 22°C (73°F), making it ideal for outdoor activities. However, it also experiences a higher humidity level at 65% and receives about 102 mm (4.0 in) of precipitation over an average of 7 days. In contrast, March features cooler temperatures, with a minimum of 0°C (33°F) and a maximum of 18°C (65°F), averaging just 11°C (53°F). While it has slightly less precipitation at 94 mm (3.7 in) over 10 days, March's humidity is marginally higher at 69%. For a closer look at March weather specifics, you can refer to Gaeta weather in March.

In September, the weather tends to be warmer with average temperatures reaching around 22°C (73°F), peaking at a maximum of 29°C (84°F), compared to April's cooler average of 14°C (57°F) and a high of 24°C (76°F). Precipitation levels are also higher in September, totaling 102 mm (4.0 in) over 7 days, whereas April sees 64 mm (2.5 in) spread across 10 days. Humidity levels are close, with September at 65% and April slightly higher at 70%, creating a slightly more humid feel in the spring. For more details on April weather, you can visit Gaeta weather in April.

In comparing the weather between September and May, we find notable differences in temperature and precipitation patterns. September boasts a higher average temperature of 22°C (73°F), peaking at 29°C (84°F), while May's average is cooler at 18°C (64°F), with a maximum of 28°C (83°F). Although September is warmer, it also experiences more rainfall, totaling 102 mm (4.0 in) over about 7 days, compared to May's 65 mm (2.5 in) over 9 days. Humidity levels are slightly higher in May at 70%, compared to September's 65%. For more details on the pleasant climate in May, you can check out Gaeta weather in May.

In comparing the weather of September and June, we see some interesting similarities and differences. Both months have a minimum temperature of 13°C (56°F) and an average temperature hovering around 22°C (72-73°F). However, September tends to be slightly warmer at its maximum, reaching up to 29°C (84°F), compared to June's peak of 29°C (85°F). Precipitation also varies significantly, with September experiencing higher levels at 102 mm (4.0 in) over 7 days, while June has a much lighter rainfall of just 30 mm (1.2 in) over 4 days. Humidity levels are fairly comparable, with September at 65% and June slightly lower at 61%. For a more detailed look at the conditions in June, you can check out Gaeta weather in June.

In comparing the weather of September and July, September offers a more temperate range with minimum temperatures around 13°C (56°F) and average highs reaching 29°C (84°F), while July enjoys warmer conditions with minimums at 19°C (67°F) and an average high of 30°C (86°F). July is also significantly drier, with only 16 mm (0.6 in) of precipitation over just 2 days, compared to September's 102 mm (4.0 in) spread over 7 days, resulting in a more humid atmosphere at 65% in September versus 57% in July. For those curious about specific details, check out Gaeta weather in July.

September sees a noticeable shift in weather compared to August. While August enjoys warmer temperatures, with a minimum of 20°C (68°F) and an average of 26°C (79°F), September presents a cooler profile with a minimum of 13°C (56°F) and an average of 22°C (73°F). Additionally, September is significantly wetter, recording 102 mm (4.0 in) of precipitation over 7 days, compared to August's much drier 11 mm (0.4 in) over just 2 days. Humidity levels also rise in September to 65%, compared to the more comfortable 53% experienced in August. For more insights on August weather, you can check Gaeta weather in August.

September and October showcase a notable shift in weather patterns. In September, temperatures range from a mild 13°C (56°F) to a warm 29°C (84°F), with an average of 22°C (73°F) and relatively lower humidity at 65%. However, October sees a slight drop in temperatures, with a minimum of 11°C (52°F) and a maximum of 25°C (78°F), averaging 18°C (65°F). Additionally, October experiences more precipitation, totaling 116 mm (4.6 in) over 9 days, compared to September's 102 mm (4.0 in) over 7 days and a rise in humidity to 75%. For more detailed insights, you can explore Gaeta weather in October.

In comparing September and November weather, it becomes clear that November is significantly cooler and wetter. September generally sees milder temperatures, with averages around 22°C (73°F) and maximums reaching 29°C (84°F), while November's average drops to 15°C (59°F), with highs only reaching 22°C (71°F). In terms of precipitation, September has a modest 102 mm (4.0 in) over about 7 days, but November experiences a dramatic increase to 316 mm (12.4 in) across 17 days, resulting in much higher humidity levels at 81% compared to September’s 65%. For a more detailed look at the weather patterns in November, visit Gaeta weather in November.

September and December present strikingly different weather patterns. In September, temperatures are relatively warm, ranging from a minimum of 13°C (56°F) to a comfortable average of 22°C (73°F) and peaking at a maximum of 29°C (84°F). The month experiences moderate rainfall, with about 102 mm (4.0 in) falling over 7 days, accompanied by a humidity level of 65%. In contrast, December brings a notable drop in temperatures, with minimums hitting 5°C (41°F) and a much cooler average of 11°C (53°F). The maximum temperature reaches only 17°C (63°F). Additionally, December sees increased precipitation, totaling 209 mm (8.2 in) over 14 days, with humidity levels rising to 84%. For those interested in the specific weather conditions during this month, more details can be found at Gaeta weather in December.

Compare Gaeta's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Gaeta

As summer wanes, September in Gaeta offers a delightful transition marked by a comfortable average temperature of 22°C (73°F), inviting visitors to bask in the pleasant warmth while enjoying reduced humidity levels at 65%. Unlike the peak summer months, which can sizzle with heat, early autumn begins to temper the days, providing a perfect backdrop for outdoor activities and sightseeing. With modest precipitation spread over just seven days, there's plenty of sunshine to complement the stunning coastal views. For a comprehensive overview of what to expect throughout the year, check out the detailed insights on Gaeta Climate.