Last updated: February 24, 2025
In September, Quarteira, Portugal, offers a delightful climate perfect for outdoor activities and relaxation. With a maximum temperature reaching 28°C (82°F) and an average of 22°C (72°F), visitors can bask in the warmth of the sun during the day, while the evenings bring a refreshing coolness with a minimum of 15°C (60°F). The month typically sees only one day of precipitation, amounting to a mere 11 mm (0.4 in), ensuring ample sunshine for beach-goers. With humidity levels around 71%, the coastal air remains pleasantly inviting, making it an ideal time to explore the beautiful scenery and local attractions.
In September, Quarteira, Portugal, basks in a delightful Mediterranean climate as summer transitions into autumn. With minimum temperatures around 15°C (60°F) and averages peaking at 22°C (72°F), the warmth remains inviting for beachgoers. Daytime highs can reach a comfortable 28°C (82°F), making it one of the most pleasant months of the year. This vibrant weather not only enhances outdoor activities but also invites travelers to enjoy the local scenery without the sweltering heat of July and August. As the days gradually shorten, the lingering warmth of early autumn creates a perfect backdrop for exploring the stunning coastline and indulging in the region's rich culture.
September in Quarteira, Portugal, marks a gentle transition from the arid summer months, with only 11 mm (0.4 in) of precipitation typically falling over just one day. This slight uptick in rainfall signals the onset of autumn, contrasting sharply with the summer's near-dry conditions. In comparison to preceding months—where July and August recorded minimal rain—it’s a subtle but significant change. Despite the increase, September remains relatively dry, paving the way for more substantial rainfall in the following months, such as October and November, when the precipitation amounts start to climb again. This pattern highlights Quarteira's seasonal rhythm, allowing residents and visitors to enjoy the tail-end of summer while preparing for the wetter conditions ahead.
As September rolls in, Quarteira, Portugal experiences a slight uptick in humidity, averaging around 71%. This month showcases a notable change from the drier summer months of June and July, which recorded humidity levels of just 67% and 69%, respectively. Interestingly, September's humidity aligns closely with March's 71%, highlighting a transitional phase as the region shifts from the warm summer to the cooler autumn months. The gradual increase in humidity continues into October, where it jumps to 75%, further emphasizing the return of moisture to the atmosphere. Overall, September in Quarteira offers a balanced blend of warmth and refreshing humidity, setting the stage for the cozy fall season ahead.
As summer fades into fall in Quarteira, Portugal, September brings a UV Index of 9, categorized as very high. This slight decline from the peak summer months of June through August, when the UV Index reached a maximum of 11, marks a trend of reducing sun intensity. However, with a burn time of just 15 minutes, sun safety remains paramount for outdoor enthusiasts. The transition into October shows a further drop to a high UV Index of 7, indicating that while the sun's rays are becoming less fierce, caution is still advisable. To learn more about the UV Index throughout the year, visit Quarteira UV Index.
UV Risk Categories
As summer gently transitions into fall, September in Quarteira, Portugal, boasts an inviting 351 hours of sunshine. This month, while slightly lower than the sun-drenched days of July and August, still benefits from the lingering warmth of summer. The steady decline in daylight hours from the peak of 427 in July reflects the seasonal shift, yet September's sunshine continues to outshine the earlier months of the year. With a marked increase from the dreary winter months, where January only offers 203 hours, September stands as a charming bridge between summer’s brightness and autumn’s tranquility, making it an ideal time for outdoor exploration and relaxation by the beautiful coastline.
In September, Quarteira, Portugal, enjoys a robust 71% chance of sunny weather, marking a delightful transition from the peak summer months of July and August, which boast chances of sun at 94% and 89%, respectively. As summer gracefully ebbs, the warmth continues, but with slightly less intensity, allowing for pleasant outdoor activities under the sun. This significant likelihood of sunshine offers a perfect backdrop for exploring the area's stunning coastlines and vibrant culture, making September an appealing month for visitors seeking a blend of summer's warmth and autumn's charm.
As summer transitions into autumn, September in Quarteira, Portugal, offers a delightful blend of warmth and shorter days. With 12 hours of daylight, September marks a gradual decline from the summer peak of 14 hours seen in the preceding months. This month remains vibrant, bridging the long, sun-soaked days of July and August to the cooler, shorter days of October. As daylight gently wanes, residents and visitors are invited to savor the lingering sunshine while enjoying the stunning sunsets that begin to color the skies earlier each evening. The rhythm of daylight in Quarteira reflects a gradual yet enchanting shift, heralding the approach of autumn.
As September arrives in Quarteira, Portugal, the winds begin to soften, with an average speed of 4.4 m/s (10 mph)—the lightest breeze of the year. This decline marks a transition from the more vigorous summer gusts prevalent in July and August, which both hover around 5.5 m/s (12 mph) and 5.0 m/s (11 mph), respectively. The trend continues into the fall, as October's winds see only a slight increase to 4.7 m/s (10 mph). This gentle wind pattern invites leisurely beach walks and serene evenings, making September an idyllic time to savor the tranquil beauty of Quarteira as it gradually shifts into the mellower tones of autumn.
The weather in Quarteira 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 Quarteira and find detailed weather information for every month.
September and January showcase distinct differences in weather patterns. In September, temperatures are generally warmer, with averages around 22°C (72°F) and highs reaching up to 28°C (82°F), accompanied by relatively low precipitation of just 11 mm (0.4 in) over the course of only one day. In contrast, January experiences much cooler temperatures, with averages of 13°C (56°F) and maximums only reaching 18°C (65°F). This month also sees increased rainfall, with 27 mm (1.1 in) over three days, and higher humidity levels at 80%. For a more detailed look at January conditions, you can refer to Quarteira weather in January.
In September, the weather tends to be much warmer, with average temperatures ranging from 15°C (60°F) at night to a high of 28°C (82°F) during the day, alongside low precipitation of just 11 mm (0.4 in) over the month. The humidity is relatively comfortable at 71%, making it an ideal time for outdoor activities. In contrast, February brings cooler temperatures, with averages between 7°C (44°F) and 20°C (68°F), along with significantly higher precipitation of 46 mm (1.8 in) spread over about five days. The humidity in February is slightly higher at 73%, which can add to the chill in the air. For more details on February weather, check out Quarteira weather in February.
In comparing the weather of September and March, September tends to be much warmer, with average temperatures ranging from a minimum of 15°C (60°F) to a maximum of 28°C (82°F), while March features cooler temperatures, with averages between 9°C (48°F) and 20°C (67°F). Additionally, September experiences significantly less precipitation, only 11 mm (0.4 in) over just one day, in contrast to March's 74 mm (2.9 in) spread across seven days. Humidity remains consistent at 71% in both months, adding a layer of comfort to the milder September days compared to the transitional March weather. For more detailed information, you can check Quarteira weather in March.
September generally offers warmer weather compared to April, with average temperatures reaching around 22°C (72°F) and maximums of 28°C (82°F), while April sees a cooler average of 15°C (60°F) and max temperatures of 21°C (70°F). Precipitation tends to be minimal in September, with just 11 mm (0.4 in) over one day, whereas April experiences significantly more rainfall at 54 mm (2.1 in) across approximately ten days. The humidity levels remain fairly similar, at 71% in September and slightly lower at 69% in April. For more detailed information about the weather in April, you can check Quarteira weather in April.
In comparing the weather of September and May, September generally boasts warmer temperatures, with an average of 22°C (72°F) compared to May's average of 18°C (65°F). While September typically experiences a higher maximum temperature of 28°C (82°F), May's maximum reaches 25°C (78°F). Precipitation is slightly lower in September, with only 11 mm (0.4 in) over just one day, whereas May sees a bit more rain at 16 mm (0.6 in) spread across three days. Humidity levels are quite similar, sitting at 71% in September and 69% in May. For more detailed information, you can check Quarteira weather in May.
September weather tends to be slightly warmer than June, with average temperatures reaching 22°C (72°F) compared to June's average of 20°C (68°F). While both months experience similar levels of precipitation, September averages a bit higher at 11 mm (0.4 in), compared to just 4 mm (0.1 in) in June. Humidity is also marginally higher in September at 71%, in contrast to June's 67%. Overall, September offers a warm transition into autumn, making it a comfortable time to enjoy the outdoors. For more details on June's climate, you can check Quarteira weather in June.
In comparing the weather between September and July, we find that September features a minimum temperature of 15°C (60°F) and a maximum of 28°C (82°F), whereas July has slightly warmer temperatures, with a minimum of 16°C (61°F) and a maximum of 30°C (86°F). Both months have the same average temperature of 22°C (72°F), but September experiences a bit more precipitation, with 11 mm (0.4 in) over one rainy day, while July sees virtually no rain, recording only 2 mm (0.1 in) with zero rainy days. Humidity levels are quite similar as well, with September at 71% and July slightly lower at 69%. For more detailed information on July weather, you can visit Quarteira weather in July.
September and August display notable differences in weather patterns. August tends to be warmer, with minimum temperatures around 17°C (63°F) and maximums reaching up to 31°C (89°F), while September sees a slight dip in temperatures, ranging from a minimum of 15°C (60°F) to a maximum of 28°C (82°F). In terms of precipitation, August is quite dry, with no recorded rainfall, whereas September experiences a bit more moisture with 11 mm (0.4 in) of precipitation over just one day, indicating a transition towards the wetter season. Humidity levels are slightly higher in September at 71%, compared to August's 68%. For more detailed weather information, you can check Quarteira weather in August.
In September, the weather typically presents mild temperatures, with a minimum of 15°C (60°F) and an average of 22°C (72°F), peaking at a maximum of 28°C (82°F). The month experiences relatively low precipitation, with only 11 mm (0.4 in) over the course of just 1 day and a humidity level of 71%. In contrast, October sees a slight dip in temperatures, with a minimum of 11°C (52°F) and an average of 20°C (68°F), while maximum temperatures reach 27°C (80°F). However, October is wetter, receiving 28 mm (1.1 in) of rainfall over 3 days and a slight increase in humidity to 75%. For a closer look at the weather specifics, check out Quarteira weather in October.
September generally offers warmer weather compared to November, with temperatures ranging from a minimum of 15°C (60°F) to a maximum of 28°C (82°F) and an average of 22°C (72°F). In contrast, November sees cooler temperatures, with a minimum of 9°C (49°F) and a maximum of 22°C (71°F), resulting in an average temperature of 16°C (62°F). Additionally, September experiences significantly less rainfall, with only 11 mm (0.4 in) over just one day, while November has a much wetter climate, recording 56 mm (2.2 in) of precipitation over seven days. Humidity also tends to be higher in November, averaging 78%, compared to September's 71%. For more detailed information, check out Quarteira weather in November.
September and December present contrasting weather conditions. In September, temperatures are warmer with a minimum of 15°C (60°F) and average highs reaching 28°C (82°F), accompanied by relatively low precipitation of just 11 mm (0.4 in) over 1 day. The humidity sits at a comfortable 71%. In contrast, December experiences cooler temperatures, with a minimum of 9°C (48°F) and an average high of 20°C (68°F). This month also sees increased rainfall, totaling 47 mm (1.9 in) spread over 5 days, and higher humidity at 81%. For more details on weather patterns, check out Quarteira weather in December.
As September arrives in Quarteira, the summer warmth lingers, providing a delightful transition into the fall season. With average temperatures settling around a comfortable 22°C (72°F), visitors can enjoy pleasant days without the sweltering heat of July and August. The chance of rain is minimal, as only about 11 mm falls throughout the month, typically condensed into just a single day, making it one of the driest months. This blend of mild weather and lower humidity, averaging 71%, makes September an ideal time to explore the stunning coastal scenery and vibrant local culture. For a deeper understanding of Quarteira's climate trends, check out Quarteira Climate.