Last updated: February 24, 2025
In September, Olhos de Água, Portugal experiences delightful weather, characterized by a maximum temperature reaching 28°C (82°F) and an average of 22°C (71°F), making it an ideal time for outdoor activities. With a comfortable minimum temperature of 15°C (60°F) at night, the evenings remain pleasant. Rainfall is minimal, with only 8 mm (0.3 in) of precipitation over the month, occurring on just one day, allowing for abundant sunshine and clear skies. The humidity level stands at a moderate 71%, enhancing the overall charm of this beautiful coastal destination.
As summer gracefully transitions to autumn, Olhos de Água, Portugal, experiences a delightful shift in temperatures come September. With minimums averaging 15°C (60°F) and a pleasant maximum of 28°C (82°F), the month offers a wonderful balance for visitors. The average temperature of 22°C (71°F) creates an inviting atmosphere, perfect for enjoying the last rays of summer sun. This trend reflects the gradual decline from the hotter summer months of August, emphasizing a comfortable warmth that beckons outdoor activities while still allowing for cool evenings. Nature enthusiasts and sun seekers alike can relish the mild weather before the cooler autumn sets in, making September an ideal time to explore this charming coastal region.
In September, Olhos de Agua experiences a slight uptick in precipitation, with 8 mm (0.3 in) of rainfall recorded over a single day. This marks a transition from the completely dry months of July and August, where no precipitation was observed. While September remains far from the wetter months of March and April, it serves as a preliminary shift towards the increased rainfall typical of the autumn months ahead. Interestingly, following the peak wetness of March at 65 mm, the overall trend shows a gradual decrease in precipitation throughout the summer months, culminating in a resurgence as autumn approaches—foreshadowing the more substantial rains of October and November.
In September, Olhos de Agua, Portugal, experiences a slight increase in humidity, averaging around 71%. This uptick marks a transition from the drier summer months, where humidity levels dipped to their lowest in June at 67%. As autumn approaches, the air retains more moisture compared to the preceding months of July and August, which hovered around 69% and 68% respectively. This gradual rise in humidity can be attributed to the changing seasons, foreshadowing the more humid conditions characteristic of the later months, with October and November witnessing even higher levels at 75% and 78%. Overall, September serves as a bridge, gently shifting from the warm, drier air of summer to the cooler, wetter conditions of autumn.
As summer transitions into fall, September in Olhos de Agua, Portugal, sees a UV Index of 9, categorizing the sun's intensity as very high, with a burn time of just 15 minutes. This notable decrease from the peak levels of July and August, both holding an index of 10, indicates that while the sun is still strong, it’s becoming less intense as autumn approaches. The trend reveals a gradual decline in UV exposure, starting from an extreme 11 in June, to moderate levels in the winter months. However, caution is still warranted, as the sun can be deceptively potent during this transition. For more details, you can check out the complete Olhos de Agua UV Index.
UV Risk Categories
As summer gracefully transitions into autumn, September in Olhos de Agua continues to bask in a generous 351 hours of sunshine, making it one of the sunniest months of the year. Following a peak in July with 425 hours, the days gradually shorten, yet September still holds onto the warmth and brilliance of summer, offering more sunshine than in the preceding months of October and November. This vibrant month not only showcases the tail end of beach season but also invites travelers to enjoy the enchanting seaside landscapes amidst a soothing backdrop of golden light. With a steady decline in sunlight leading into the cooler months, September stands out as a perfect balance of warmth and sunshine.
September in Olhos de Agua, Portugal, offers a promising chance of sunny weather, with a 71% likelihood of sunshine. This trend follows the peak summer months, where both June and July boast impressive sunshine probabilities of 83% and 93% respectively. As summer gives way to autumn, the weather remains fairly pleasant, with September seeing significantly more sun than earlier months like January (48%) and February (28%). Although October and November see a dip in sunshine with probabilities of 59% and 76%, respectively, September stands out as an ideal time to enjoy the lingering warmth of late summer. Whether you're lounging on the beach or exploring the picturesque surroundings, you can expect a delightful blend of sunshine and comfortable temperatures throughout September.
As summer fades, September in Olhos de Água, Portugal, brings a subtle transition, with daylight lasting around 12 hours. While this marks a decline from the 14 hours enjoyed during the peak summer months of June through August, it still offers a generous amount of sunlight compared to the shorter days ahead. The daylight duration begins its gradual descent, signaling the onset of autumn. This month encapsulates a perfect blend of lingering warmth and the anticipation of the cooler seasons, as the landscape transforms and prepares for the rich colors of fall.
As summer transitions to autumn in Olhos de Agua, Portugal, September brings a gentle breeze with an average wind speed of 4.3 m/s (10 mph), marking a noticeable dip from the lively gusts of July and August. This month represents one of the calmest periods of the year, reflecting a shift towards more serene weather patterns. Following the peak summer winds, which reached up to 5.7 m/s (13 mph), the softening winds in September create a tranquil atmosphere that complements the warm, lingering days of late summer. This trend continues into October, where winds slightly increase to 4.7 m/s (10 mph), hinting at the approaching winter while still embracing the lingering warmth of the season. The gradual ebb and flow of wind speeds throughout the year illustrate the enchanting evolution of the Algarve's coastal climate, inviting visitors to savor each unique moment.
The weather in Olhos de Agua 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 Olhos de Agua and find detailed weather information for every month.
When comparing the weather in September and January, notable differences emerge. September typically enjoys milder temperatures, with a minimum of 15°C (60°F) and an average around 22°C (71°F), reaching maximum highs of 28°C (82°F). This month also experiences low precipitation at 8 mm (0.3 in) over just one day, accompanied by a relatively comfortable humidity level of 71%.
In contrast, January presents cooler conditions, with a minimum temperature dipping to 5°C (41°F) and an average of 13°C (56°F). The maximum temperature reaches only up to 18°C (65°F). This month is wetter, with precipitation totaling 26 mm (1.0 in) over three days, and higher humidity at 80%. For more detailed insights, you can check Olhos de Agua weather in January.
In comparing the weather between September and February, September offers a warmer climate with temperatures ranging from a minimum of 15°C (60°F) to a maximum of 28°C (82°F), averaging around 22°C (71°F). This month typically experiences low precipitation, only about 8 mm (0.3 in) over a single day, and maintains a moderate humidity level of 71%. In contrast, February presents cooler temperatures, with a minimum of 7°C (44°F) and a maximum of 20°C (68°F), averaging just 14°C (58°F). February is also wetter, receiving 45 mm (1.8 in) of rain across five days, and has a slightly higher humidity of 73%. For more specifics on February weather, you can refer to Olhos de Agua weather in February.
September typically brings warmer and more pleasant weather compared to March. With average temperatures ranging from a minimum of 15°C (60°F) to a maximum of 28°C (82°F), September enjoys fewer rainfall days and significantly lower precipitation at just 8 mm (0.3 in). In contrast, March is cooler, with average temperatures between 9°C (48°F) and 20°C (68°F), and experiences more rainfall, totaling 65 mm (2.6 in) over seven days. Despite the differences in temperature and precipitation, both months maintain a consistent humidity level of 71%. For more detailed information on March conditions, check out Olhos de Agua weather in March.
When comparing September and April weather, September tends to be warmer and drier. Average temperatures in September range from a minimum of 15°C (60°F) to a maximum of 28°C (82°F), with only about 8 mm (0.3 in) of precipitation on just 1 day. In contrast, April features cooler temperatures with a minimum of 10°C (50°F) and a maximum of 21°C (70°F), accompanied by significantly higher rainfall of 49 mm (1.9 in) spread over 9 days. Humidity levels remain similar, at 71% in September and 69% in April. For more detailed insights, you can check Olhos de Agua weather in April.
When comparing the weather conditions in September and May, we notice distinct differences. September typically enjoys warmer temperatures, with a minimum of 15°C (60°F) and an average of 22°C (71°F), peaking at a comfortable 28°C (82°F). In contrast, May experiences cooler temperatures, with a minimum of 11°C (52°F) and an average of 18°C (65°F), reaching a maximum of 27°C (80°F).
Precipitation levels also differ between the two months; September sees less rain with only 8 mm (0.3 in) over just one day, while May experiences a slightly higher rainfall total of 13 mm (0.5 in) across three days. Humidity levels remain fairly comparable, with September at 71% and May at 69%. For more detailed insights, you can explore Olhos de Agua weather in May.
In September, the weather typically brings warmer temperatures, with averages reaching 22°C (71°F) compared to June's average of 20°C (68°F). While September can peak at 28°C (82°F), June slightly edges higher at 29°C (85°F). Rain is more common in September with an average of 8 mm (0.3 in) over just one day, whereas June enjoys drier conditions, experiencing only 3 mm (0.1 in) and no rainy days at all. Humidity is also slightly higher in September at 71%, compared to 67% in June. For a more detailed look at June weather, visit Olhos de Agua weather in June.
In comparing the weather of September and July, we see that both months enjoy mild temperatures, with September averaging around 22°C (71°F) and July slightly lower at 21°C (71°F). July boasts higher maximum temperatures, reaching up to 29°C (84°F), compared to September's peak of 28°C (82°F). Precipitation is minimal in both months, with July receiving only 2 mm (0.1 in) over no days, while September sees slightly more with 8 mm (0.3 in) over just one day. Humidity levels are quite similar, with September at 71% and July at 69%. For those interested in a more detailed look, you can explore Olhos de Agua weather in July.
In August, the weather is characterized by slightly warmer temperatures, with a minimum of 17°C (62°F), an average of 22°C (72°F), and a maximum of 30°C (86°F). This month experiences no recorded precipitation, resulting in dry conditions and lower humidity at 68%. In contrast, September sees a drop in minimum temperatures to 15°C (60°F) and a maximum of 28°C (82°F), with an average temperature similar to August at 22°C (72°F). However, September is marked by a small amount of precipitation, totaling 8 mm (0.3 in) over just one day, and a slight increase in humidity to 71%. For a detailed view of the August weather, you can refer to Olhos de Agua weather in August.
In comparing the weather between September and October, we see a noticeable shift in temperatures and precipitation. September generally enjoys a warmer climate with average temperatures around 22°C (71°F) and a maximum reach of 28°C (82°F). In contrast, October experiences cooler conditions, with average temperatures dropping to 20°C (67°F) and a maximum of 26°C (80°F). Additionally, October witnesses a significant increase in rainfall, totaling 27 mm (1.0 in) over three rainy days, compared to just 8 mm (0.3 in) on one rainy day in September. The humidity also slightly rises from 71% in September to 75% in October, contributing to a more damp and cooler feeling as the month progresses. For more details on October weather, you can visit Olhos de Agua weather in October.
In September, the weather is typically warmer, with average temperatures ranging from a minimum of 15°C (60°F) to a maximum of 28°C (82°F), and low precipitation of only 8 mm (0.3 in) over just one day. In contrast, November brings cooler temperatures, with an average ranging from 9°C (49°F) to 21°C (71°F), accompanied by much higher rainfall of 49 mm (1.9 in) spread over seven days. Additionally, humidity levels rise slightly from 71% in September to 78% in November, creating a more pronounced chill in the air. For further insights, you can explore the Olhos de Agua weather in November.
In September, the weather is generally warmer, with average temperatures around 22°C (71°F) and maximums reaching up to 28°C (82°F). The month sees minimal rainfall, with only 8 mm (0.3 in) over a single day, accompanied by a humidity level of 71%. In contrast, December experiences cooler temperatures, with an average of 15°C (59°F) and highs of 20°C (68°F). This month is also wetter, recording 45 mm (1.8 in) of precipitation over five days and increased humidity at 81%. For a more detailed look at the climate in December, visit Olhos de Agua weather in December.
As September arrives in Olhos de Agua, the weather offers a pleasant transition from the heat of summer to the cooler embrace of autumn. With average temperatures around 22°C (71°F), this month showcases a perfect balance of warmth and mildness, making it ideal for outdoor activities. Notably, precipitation is minimal, with only a day of rain expected, allowing for plenty of sunshine and enjoyment of the stunning coastal scenery. The humidity remains comfortable, contributing to a delightful atmosphere that sets September apart from both the sizzling summer months and the cooler winters. For a more detailed overview of what to expect throughout the year, explore the Olhos de Agua Climate.