September Weather in Caparica, Portugal

Last updated: February 24, 2025

Experience the vibrant September weather in Caparica, Portugal, where temperatures reach a maximum of 29°C (84°F), offering plenty of warmth and sunshine. The average temperature settles around 20°C (68°F), making it an ideal time for outdoor activities, while the cool evenings drop to a refreshing 14°C (58°F). With only 27 mm (1.1 in) of precipitation over just 2 days, this month promises predominantly dry and pleasant conditions. The humidity hovers around 67%, adding a hint of coolness to the warm air. Enjoy the perfect blend of sunshine and mild conditions in this stunning coastal town!

September Temperature in Caparica

As summer gently transitions into autumn, September in Caparica, Portugal boasts mild temperatures that invite both relaxation and exploration. With minimal temperatures starting at 14°C (58°F) and averaging around 20°C (68°F), the month offers a comfortable climate for outdoor activities. The peak temperatures reach a pleasant 29°C (84°F), allowing sunbathers to enjoy the beach scenes without the sweltering heat of August. This month marks a slight cooling trend from the heights of the summer, yet still retains warmth that lingers in the air, making September an ideal time to experience the charm of Caparica's coastline as it transitions into the cozy embrace of autumn.

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

The chart illustrates September temperature patterns in Caparica, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec535556586365686968655956
Data source: Temperature data for Caparica 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 Caparica

In September, Caparica, Portugal experiences a welcome shift in weather, with 27 mm (1.1 in) of precipitation over just 2 days, signaling the onset of autumn. This moderate rainfall follows the region's driest months, marked by negligible amounts in July and August, where the skies barely opened up. While still relatively dry compared to the peak spring months, September's precipitation lays a foundation for the wetter days ahead, with October anticipated to bring even more substantial rainfall at 46 mm (1.8 in). This transition not only revitalizes the landscape but also prepares the region for a shift in temperatures and increased humidity, highlighting nature's rhythmic cycle as seasons change.

September Precipitation Trends in Caparica

The chart displays monthly precipitation patterns in Caparica, 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.
JanFebMarAprMayJunJulAugSepOctNovDec3753667336115327468062
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Caparica

In September, Caparica, Portugal, experiences a notable shift in humidity as it transitions from the drier summer months. With an average humidity of 67%, this marks an increase from the preceding months of July and August, where humidity levels plateaued at a relatively comfortable 60%. As autumn approaches, the humidity begins to rise, setting the stage for a more refreshing environment compared to the heat of summer. This gradual increase continues into the fall, as evidenced by the bump to 74% in October. Observing these trends, it becomes clear that September acts as a pivotal bridge between the dry warmth of summer and the more humid seasons ahead, making it a unique time to enjoy Caparica's changing climate.

September Average Humidity in Caparica

This chart illustrates the average monthly humidity levels in Caparica, 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.
JanFebMarAprMayJunJulAugSepOctNovDec85%75%72%70%70%63%60%60%68%74%83%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Caparica

In September, Caparica, Portugal, continues to bask in the sun with a high UV Index of 8, categorized as very high, which means the risk of harm from unprotected sun exposure is significant. As summer wanes, the burn time reduces slightly to 15 minutes, reflecting a trend where UV levels typically peak in the warmer months. Following a pattern observed from April through August, the UV Index remains elevated, indicating that sun safety remains paramount. As the days grow shorter, the UV exposure will gradually decrease into the autumn months, making September a crucial time to enjoy the sun responsibly. For more detailed information, check out the Caparica UV Index.

Maximum UV Index Levels in Caparica for September

The chart shows the monthly maximum UV Index (UVI) for Caparica 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.
JanFebMarAprMayJunJulAugSepOctNovDec356910111098643
Data source: Caparica 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 Caparica

September in Caparica, Portugal, shines brightly with an impressive 350 hours of sunshine, marking a delightful transition from the sun-drenched summer months. After basking in July's peak of 423 hours, the sun's embrace gently softens but still offers plenty of warmth. As summer gives way to autumn, September maintains a robust level of sunshine, outshining the cooler months that follow, such as October with its 314 hours. This gradual decline in sunshine hours reflects the region's enchanting seasonal rhythm, where the lingering summer hues gradually yield to the cozy charm of fall, making September a perfect time for both relaxation and exploration.

Monthly Sunshine Duration in Caparica: September Highlighted

The September sunshine duration represents the total number of hours Caparica 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.
JanFebMarAprMayJunJulAugSepOctNovDec182h229h307h354h407h411h423h396h350h314h233h222h
Data source: Caparica September Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Caparica During September

In Caparica, Portugal, September offers a delightful transition from the peak summer months, with a 63% chance of sunny weather that keeps the spirit of summer alive. As summer rolls into autumn, the likelihood of sunshine reflects a slightly decreased yet still favorable pattern compared to the heights of July and August, both boasting over 70% sun. This trend of decreasing sunshine continues into the fall, with October at 54%, but September remains a sweet spot for those looking to enjoy warm days. Overall, if you’re seeking a sunny escape as summer wanes, September in Caparica proves to be an enticing option, inviting you to bask in the last rays of summer.

Percentage of Sunny Days in September in Caparica

The chart illustrates the percentage of sunny days in Caparica 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 Caparica experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec46%23%60%39%57%66%74%73%63%54%67%40%
Data source: Caparica September chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Caparica in September

As summer transitions into autumn in Caparica, Portugal, September offers a delightful balance with 12 hours of daylight. This month marks a gentle decrease from the peak of 14 hours experienced during the lively summer months of June through August. The gradual reduction in daylight reflects the shift in seasons, as the vibrant long days of summer fade into the shorter days of fall. This trend continues into October, where daylight drops to 11 hours, hinting at the cooler months ahead. September's lingering warmth and moderate sunlight create an inviting atmosphere, perfect for enjoying outdoor activities before the arrival of autumn's crispness.

Average Daylight Hours in Caparica for September

The chart illustrates the variation in daylight duration in Caparica throughout the year, with September highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 47m10h 44m11h 58m13h 13m14h 17m14h 48m14h 31m13h 35m12h 23m11h 8m10h 3m9h 29m
Data source: Caparica daylight hours, calculated by summing the hours between sunrise and sunset for each day.

September Winds in Caparica

In Caparica, Portugal, September brings a gentle shift in the winds as the summer draws to a close, with an average speed of 4.2 m/s (9 mph). This dip from the summer highs of 5.5 m/s in both May and June marks a transition into the more tranquil autumn months, where nature begins to embrace a slower pace. While the wind is softer compared to the bustling summer season, it offers a refreshing change, inviting locals and visitors alike to enjoy the coastline's serene beauty. As October approaches, the winds ease further, settling at 4.0 m/s. This subtle decline from summer's spirited breezes to the calmer currents of fall highlights September's unique charm, making it an ideal time for leisurely beach strolls and contemplative moments by the sea.

Average September Wind Speed in Caparica

The chart displays monthly wind speed patterns in Caparica, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.95.14.33.65.55.55.75.24.2 m/s4.04.64.9
Data source: Caparica September wind data, generated using information from the Copernicus Climate Change Service.

How September Weather in Caparica Compares to Other Months

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

September and January present a stark contrast in weather conditions. In September, temperatures range from a mild 14°C (58°F) to a warm 29°C (84°F), with an average of 20°C (68°F). There is relatively low precipitation, with only 27 mm (1.1 in) falling over about 2 days, and humidity levels are moderate at 67%. In comparison, January experiences much cooler temperatures, with a minimum of 3°C (38°F) and a maximum of 19°C (66°F), averaging 12°C (53°F). The month is wetter, receiving 37 mm (1.5 in) of rain over approximately 5 days, and the humidity is higher at 85%. For more detailed information, check out Caparica weather in January.

September and February present quite different weather patterns. In September, temperatures typically range from a minimum of 14°C (58°F) to a maximum of 29°C (84°F), with an average of 20°C (68°F). The month sees relatively low precipitation of only 27 mm (1.1 in) over about 2 days, and the humidity hovers around 67%. In contrast, February experiences cooler conditions, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 21°C (70°F) and an average of 13°C (55°F). This month has higher precipitation of 53 mm (2.1 in) spread over 7 days, and increased humidity at 75%. For a detailed look at the weather during February, you can visit Caparica weather in February.

In comparing the weather of September and March, September generally offers warmer temperatures, with an average of 20°C (68°F) and a maximum reaching 29°C (84°F). In contrast, March is cooler, averaging 14°C (57°F) and peaking at 23°C (73°F). Precipitation levels also differ significantly; September sees only 27 mm (1.1 in) of rain over 2 days, while March experiences more rainfall at 66 mm (2.6 in) spread over 8 days. Additionally, humidity is slightly higher in March at 72%, compared to 67% in September. For more detailed information, you can check out Caparica weather in March.

September weather tends to be warmer than April, with average temperatures reaching around 20°C (68°F) compared to April's average of 15°C (59°F). September sees a maximum temperature of 29°C (84°F), while April peaks at 24°C (75°F). In terms of precipitation, September is drier with only 27 mm (1.1 in) over 2 days, compared to April's 73 mm (2.9 in) over 12 days. Despite the higher humidity in April at 70%, September's 67% humidity still contributes to a warm and pleasant atmosphere. For more detailed weather information, check out Caparica weather in April.

In September, the weather typically features a comfortable range with minimum temperatures around 14°C (58°F) and average highs reaching up to 29°C (84°F). The month experiences relatively low precipitation, with only about 27 mm (1.1 in) over just 2 days and a humidity level of 67%. Conversely, May tends to be cooler overall, with minimum temperatures of 10°C (50°F) and an average of 17°C (63°F), while still hitting a maximum of 30°C (86°F). Precipitation is slightly higher in May at 36 mm (1.4 in) spread over 4 days, accompanied by a slightly increased humidity of 70%. For a more detailed look at the weather in May, you can visit Caparica weather in May.

When comparing the weather in September to that of June, we notice some interesting differences. September tends to be slightly warmer, with an average temperature of 20°C (68°F), compared to June's average of 18°C (66°F). However, June can experience higher maximum temperatures, peaking at 32°C (90°F), while September's maximum reaches only 29°C (84°F). Precipitation in September is relatively more frequent, with 27 mm (1.1 in) over 2 days, compared to June, which sees just 11 mm (0.4 in) over 3 days. Humidity levels are fairly similar, with September at 67% and June at 63%. For more detailed insights into June weather, check out Caparica weather in June.

In comparing the weather between September and July, we see some notable differences. Both months have a similar average temperature of 20°C (68°F), but July tends to be warmer at its maximum, reaching up to 31°C (87°F) compared to September's maximum of 29°C (84°F). Interestingly, September also experiences slightly cooler minimum temperatures, with lows around 14°C (58°F) as opposed to July's 15°C (59°F). Precipitation is minimal in July, with only 5 mm (0.2 in) measured over no days, while September sees a bit more rain, totaling 27 mm (1.1 in) over 2 days. Humidity levels are slightly higher in September at 67%, compared to July's 60%. For more detailed information about the weather in July, check out Caparica weather in July.

In August, the weather tends to be hotter, with temperatures reaching a maximum of 35°C (95°F) and an average of 20°C (69°F). The month experiences very little rainfall, recorded at just 3 mm (0.1 in) over the course of 0 days, along with a lower humidity level of 60%. In contrast, September brings milder temperatures, averaging 20°C (68°F) with a maximum of 29°C (84°F). This month sees slightly more precipitation, totaling 27 mm (1.1 in) over 2 days, and humidity increases to 67%. For more details on August weather, you can check Caparica weather in August.

September typically enjoys warmer temperatures, with average highs reaching 29°C (84°F) and minimal rainfall, totaling just 27 mm (1.1 in) over 2 days. In contrast, October sees a notable drop in minimum temperatures to 10°C (50°F) and an average of 18°C (65°F), with precipitation increasing to 46 mm (1.8 in) over 5 days. Additionally, humidity rises slightly in October to 74%, compared to 67% in September, giving the month a more damp feel. For more details, check Caparica weather in October.

In September, temperatures are generally warmer, with minimums around 14°C (58°F) and maximums reaching 29°C (84°F), making it a pleasant month to enjoy outdoor activities. However, the month experiences relatively low precipitation, averaging just 27 mm (1.1 in) over only 2 days, with a humidity level of 67%. In contrast, November brings cooler temperatures, with a minimum of 9°C (48°F) and a maximum of 23°C (73°F). This month also sees a significant increase in rainfall, totaling 80 mm (3.2 in) over 11 days, and higher humidity at 83%. For a detailed look at weather specifics in November, visit Caparica weather in November.

September weather is generally warmer and drier compared to December, with average temperatures ranging from a minimum of 14°C (58°F) to a maximum of 29°C (84°F). During this month, precipitation is relatively low at 27 mm (1.1 in) and occurs over just 2 days, alongside a moderate humidity of 67%. In contrast, December experiences cooler temperatures, with an average ranging from a minimum of 6°C (43°F) to a maximum of 18°C (65°F). The month sees more precipitation, totaling 62 mm (2.4 in) over 8 days, and higher humidity at 85%. For more detailed insights specific to Caparica, check out Caparica weather in December.

Compare Caparica's Climate with Cities Worldwide

Conclusion: What to Expect From September Weather in Caparica

As September unfolds in Caparica, it brings a delightful transition from the summer heat to milder autumn days. With average temperatures comfortably hovering around 20°C, the month sees warm days that invite outdoor adventures, while the nights offer a refreshing coolness perfect for evening strolls. This delightful weather is complemented by minimal rainfall, with only a couple of days experiencing light showers, allowing residents and tourists alike to enjoy the stunning coastal scenery without frequent interruptions. The humidity remains moderate, creating an inviting atmosphere reminiscent of lingering summer days but with a hint of fall. Overall, September provides a unique blend of warm and pleasant conditions that stand apart from the sweltering months preceding it. For more insights into the climate of this charming locale, check out Caparica Climate.