Last updated: February 24, 2025
September in Setúbal, Portugal offers a delightful transition from summer to autumn. With maximum temperatures peaking at 30°C (86°F) and a comfortable average of 21°C (69°F), the weather invites both locals and visitors to enjoy outdoor activities. Nighttime brings a refreshing minimum temperature of 14°C (57°F), perfect for evening strolls. Rain is minimal, with only 18 mm (0.7 in) over 2 days, ensuring that sunny days dominate the month. The humidity level sits at a moderate 67%, providing a pleasant atmosphere for exploring Setúbal's stunning landscapes and rich cultural heritage.
In Setubal, Portugal, September marks a delightful transition in temperatures, where the warmth of summer lingers just a little longer. The minimum temperature settles around 14°C (57°F), providing a comfortable cushion for early autumn evenings. During the day, the average climbs to a pleasant 21°C (69°F), allowing for pleasant outdoor activities and exploration of this charming coastal city. With a maximum reaching 30°C (86°F), residents and visitors alike can still bask in the sun, reminiscent of the hotter summer months. This gradual cooling trend paves the way for the upcoming fall, making September an ideal time to enjoy the beautiful landscapes and vibrant culture of Setubal before the chill of winter sets in.
In September, Setubal experiences a shift in its weather patterns as summer winds down, with precipitation measuring around 18 mm (0.7 in) over just two rainy days. This marks a slight increase from the near-dry months of July and August, where rainfall was minimal. In contrast to the dry summer, September's precipitation hints at the approach of autumn, characterized by more frequent showers. While it does not rival the heavier rainfall seen in later months like November, this brief respite of rain helps to rejuvenate the landscape after the arid summer heat. Overall, September serves as a transitional month, bridging the gap between the warmth of summer and the wetter autumn days to come.
As summer transitions to autumn in Setúbal, Portugal, September experiences a noticeable increase in humidity, settling at 67%. This is a mild rise from the drier months of July and August, which both recorded a relatively comfortable 60% humidity. The overall trend indicates a gradual shift towards higher moisture levels as the year progresses, with January's peak at 85% humidity serving as a stark contrast to the summer months. As October approaches, humidity levels are expected to climb further, echoing the pattern of earlier months, especially with November and December anticipated to return to the more humid conditions characteristic of mid-winter. This interplay of humidity not only influences the local climate but also enhances the lushness of Setúbal's stunning landscapes.
As September arrives in Setúbal, Portugal, the UV Index remains a notable 8, classified as very high, which means sun protection is crucial with a burn time of just 15 minutes. This trend of elevated UV exposure continues from the summer months, where June peaked at an extreme 11, followed closely by July and August. As autumn approaches, the UV Index gradually declines, setting the stage for safer sun enjoyment, but vigilance is still advisable in September. Awareness of these UV patterns is essential for both locals and visitors, ensuring that everyone can relish the vibrant sun while safeguarding their skin. For detailed insights, explore the Setubal UV Index.
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September in Setúbal, Portugal, continues the region's vibrant embrace of sunlight, boasting an impressive 350 hours of sunshine. As summer wanes, this month reflects a slight but noticeable dip from the peak 422 hours seen in July, yet it remains significantly brighter than the winter months, which are often shrouded in clouds. Following a sun-drenched June and July, September showcases the fading warmth of summer while still offering ample opportunity for outdoor activities and seaside relaxation. This gradual decline in daylight foreshadows the arrival of autumn, as October, with its 315 hours, hints at shorter days ahead. With this brilliant September weather, Setúbal invites enthusiasts of sunshine to savor the last golden moments of the season.
In Setubal, Portugal, September is characterized by a promising likelihood of sunny weather, boasting a 65% chance of sunshine. Following the peak sunshine months of July and August, both at 78%, September maintains a solid position, reflecting a gradual decline but still providing ample opportunities for outdoor enjoyment. This trend showcases the region's delightful transition into autumn, where the warmth persists despite the approaching cooler months. With May to August consistently featuring high percentages of sun, September remains a vibrant choice for those seeking pleasant weather before the rainy season begins in October. Overall, it's a fantastic time to revel in the sunlight while exploring the beautiful coastal scenery of Setubal.
As September arrives in Setúbal, Portugal, the daylight begins to soften, offering about 12 hours of light—a gentle decline from the summer peak. Following the height of summer with 14 hours in June, July, and August, the days gradually shorten, prompting a shift towards the cozy embrace of autumn. This month serves as a transitional period, balancing the lingering warmth of summer with the cooler tones of fall. As the days grow shorter, the vibrancy of the landscape transforms, inviting locals and visitors alike to savor the beautiful sunsets that signal the change of seasons. From this point onward, daylight continues to wane, eventually reaching a modest 9 hours in December, marking the end of the year with a reflective calm.
In September, the coastal winds of Setubal, Portugal, begin to mellow, with an average speed of 4.2 m/s (9 mph), marking a gentle decline from the summer breezes. This slight dip aligns with the transition from the vibrant summer months, where wind speeds reached up to 5.4 m/s (12 mph) in July. As autumn approaches, the consistent patterns of the year reveal a gradual tapering of wind intensity, with September showcasing the calm before the seasonal shift. With this serene wind backdrop, Setubal offers a tranquil atmosphere perfect for embracing the beauty of the changing season. As temperatures cool, the winds invite both locals and travelers to savor the idyllic charm of this coastal gem.
The weather in Setubal 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 Setubal and find detailed weather information for every month.
In September, the weather is typically warmer, with temperatures ranging from a mild 14°C (57°F) at night to a comfortable 30°C (86°F) during the day, accompanied by relatively low precipitation of 18 mm over just two days. The humidity is moderate at 67%, making it a pleasant month for outdoor activities. In contrast, January experiences significantly cooler temperatures, with minimums dropping to 4°C (40°F) and daily highs peaking at 20°C (68°F). This month also sees increased rainfall, with 34 mm over four days, and higher humidity levels at 85%. For a detailed look at Setubal's weather during January, check out Setubal weather in January.
September and February present a stark contrast in weather conditions. In September, temperatures are generally warmer, with a minimum of 14°C (57°F) and an average of 21°C (69°F), reaching a maximum of 30°C (86°F). The month experiences low precipitation, only about 18 mm (0.7 in) over 2 days, and a humidity level of 67%. In contrast, February is much cooler, with a minimum temperature of 5°C (42°F) and an average of 13°C (56°F), peaking at 21°C (71°F). This month sees significantly higher rainfall, totaling 53 mm (2.1 in) across 6 days, along with increased humidity at 75%. For more detailed insights about February weather, you can check Setubal weather in February.
In comparing the weather between September and March, we see notable differences in temperature and precipitation patterns. September typically enjoys warmer temperatures, with averages around 21°C (69°F) and highs reaching up to 30°C (86°F), while March is cooler, with average temperatures of 14°C (58°F) and maximums around 24°C (75°F). Precipitation also varies significantly; September sees only 18 mm (0.7 in) over approximately 2 days, whereas March experiences much wetter conditions, with 66 mm (2.6 in) spread over 8 days. Additionally, March tends to have a slightly higher humidity level at 72%, compared to September's 67%. For more detailed information on March weather in Setubal, visit Setubal weather in March.
When comparing the weather in September and April, notable differences emerge. September tends to be warmer, with average temperatures ranging from a minimum of 14°C (57°F) to a maximum of 30°C (86°F) and an average of 21°C (69°F). In contrast, April features cooler temperatures, with a minimum of 9°C (48°F) and a maximum of 24°C (76°F), leading to an average of 15°C (60°F). Additionally, September sees significantly less rainfall, with only 18 mm (0.7 in) over about 2 days compared to April, which experiences 63 mm (2.5 in) of rain across 11 days. The humidity levels are relatively similar, with September at 67% and April slightly higher at 70%. For further insights into April weather, you can explore Setubal weather in April.
September and May present distinct weather patterns, showcasing the transition between summer and autumn. September tends to be warmer, with average temperatures reaching 21°C (69°F) and a maximum of 30°C (86°F), compared to May, where the average is slightly cooler at 18°C (64°F) and maxing out at 31°C (87°F). Although May has more precipitation, totaling 31 mm (1.2 in) over four days, September is drier with only 18 mm (0.7 in) across two days. Humidity levels in both months are quite similar, with September sitting at 67% and May slightly higher at 70%. For more detailed information, you can check Setubal weather in May.
When comparing the weather in September and June, September tends to be slightly warmer with an average temperature of 21°C (69°F) compared to June's average of 19°C (67°F). Both months experience similar minimum temperatures, but September's maximum can reach 30°C (86°F), just shy of June's peak of 31°C (89°F). Precipitation is notably higher in September with 18 mm (0.7 in) compared to June's 8 mm (0.3 in), although both months see similar rainfall days at just two. Humidity levels in September are a bit higher at 67% versus June's 63%. For a deeper insight into June's climate specifics, you can refer to Setubal weather in June.
In comparing the weather between September and July, we see that July typically enjoys slightly warmer temperatures, with a minimum of 15°C (59°F) and a maximum of 31°C (88°F), compared to September's range of 14°C (57°F) to 30°C (86°F). Both months share similar average temperatures around 21°C (70°F), but July experiences significantly less precipitation, with only 4 mm (0.2 in) over 1 day, while September sees more rain, totaling 18 mm (0.7 in) across 2 days. Additionally, September tends to be more humid at 67%, compared to July's 60%, making the latter feel a bit more comfortable overall. For a more detailed comparison of Setubal’s climate, check out Setubal weather in July.
In comparing the weather of September and August, September experiences slightly cooler temperatures with a minimum of 14°C (57°F) and a maximum of 30°C (86°F), while August has higher daily highs reaching up to 34°C (94°F). Precipitation is more prevalent in September, with 18 mm falling over 2 days, compared to the near absence of rainfall in August, which saw only 3 mm and no rainy days. Humidity also rises in September to 67%, compared to 60% in August. For more detailed information, you can check Setubal weather in August.
September and October exhibit noticeable shifts in weather patterns. In September, temperatures range from a minimum of 14°C (57°F) to a maximum of 30°C (86°F), with an average of 21°C (69°F) and relatively low precipitation of 18 mm (0.7 in) over just 2 days. This month is characterized by a humidity level of 67%, creating a warm and comfortable atmosphere.
In contrast, October sees a slight drop in temperatures, with a minimum of 10°C (50°F), an average of 19°C (66°F), and a maximum of 28°C (83°F). Precipitation increases to 39 mm (1.5 in) over 4 days, suggesting a wetter climate during this month, and humidity also rises to 74%. For more detailed insights on October weather, you can check out Setubal weather in October.
September and November present contrasting weather patterns. In September, temperatures range from a mild minimum of 14°C (57°F) to a warm maximum of 30°C (86°F), with an average of 21°C (69°F). It experiences relatively low precipitation, totaling just 18 mm (0.7 in) over about 2 days and a humidity of 67%. In contrast, November brings cooler temperatures, with a minimum of 8°C (47°F) and an average of 15°C (60°F), peaking at a maximum of 23°C (73°F). This month sees a significant increase in precipitation, totaling 69 mm (2.7 in) over approximately 9 days, alongside higher humidity levels at 83%. For more detailed information about November weather, you can visit Setubal weather in November.
In September, the weather in Setúbal is generally warm and pleasant, with average temperatures ranging from a minimum of 14°C (57°F) to a maximum of 30°C (86°F). The month experiences limited rainfall, with only 18 mm (0.7 in) of precipitation over about 2 days, leading to a moderate humidity level of 67%. In contrast, December brings cooler temperatures, with an average of 14°C (57°F) and a maximum of 18°C (66°F). Precipitation significantly increases in this month, totaling 54 mm (2.1 in) over 7 days, and humidity rises to 85%. For more details on December weather patterns, you can visit Setubal weather in December.
As September unfolds in Setúbal, the weather begins to transition from the warmth of summer towards the milder embrace of autumn. With average temperatures resting comfortably around 21°C (69°F), this month offers a pleasant respite from the higher summer peaks, making it an ideal time for outdoor activities. The reduced precipitation—with just two days of rain totaling 18 mm (0.7 in)—ensures plenty of sun-drenched moments to enjoy the picturesque landscapes. This shift in climate, combined with a humidity level of 67%, creates a distinctly more comfortable atmosphere compared to the heat of July and August. For more detailed insights on what to expect throughout the year, check out the information on Setubal Climate.