Last updated: August 21, 2025
Experience the striking August weather in Oeiras, Brazil, where warmth reigns supreme. With maximum temperatures soaring up to 38°C (101°F) and an inviting average of 30°C (86°F), this month offers the perfect setting for outdoor adventures. Enjoy sunny days and clear skies, as no precipitation has been recorded, resulting in zero rainy days. The humidity sits comfortably at 58%, creating a pleasantly warm atmosphere ideal for exploring the vibrant landscapes and engaging in recreational activities. Embrace the summer vibes that Oeiras has to offer this August!
In August, Oeiras, Brazil, experiences a delightful summer warmth, making it a noteworthy time for visitors and locals alike. The temperatures range from a pleasant 20°C (68°F) at night to a cozy 30°C (86°F) during the day, peaking at a balmy 38°C (101°F). This slight increase in average temperature compared to previous months indicates a gradual transition towards the hotter season. Notably, while the minimum temperatures remain relatively stable, the average temperature reflects an upward trend as Oeiras heads into the spring months, hinting at the vibrant heat that September will bring. With sunny skies and a warm climate, August is the perfect month for outdoor activities in this vibrant Brazilian town.
In August, Oeiras experiences a notable dry spell, maintaining a streak with 0 mm of precipitation, mirroring conditions from the previous month of July. This absence of rainfall marks a stark contrast to the wetter months at the beginning of the year, particularly February, which recorded a significant 217 mm over an average of 21 days. The trend of decreasing rainfall from late spring into the heart of winter culminates in these arid August afternoons, emphasizing a climate pattern where the heaviest rains are concentrated at the start of the year. As autumn approaches, the annual cycle indicates a gradual resurgence of precipitation, making August a key month for observing this striking transition in Oeiras' climate rhythm.
In Oeiras, Brazil, August marks a notable shift in humidity levels, with humidity decreasing to 58%, a significant drop from the preceding months. This declining trend, which starts in July at 66%, continues into September, where it plunges further to 51%. The summer months of January through April see high humidity levels peaking at 93% in March, creating a stark contrast to the drier conditions that follow. As the year progresses towards the end of the year, a gradual decline is observed, culminating in October and November, where humidity reaches its lowest at 45% and 41%, respectively. Overall, August serves as a transitional month, reflecting the region's shift towards a more comfortable, drier climate as it heads into the latter part of the year.
In August, Oeiras, Brazil experiences a UV Index of 12, categorizing exposure as extreme with a burn time of just 10 minutes. This marks a slight decline compared to the peak of 15 in March, yet still emphasizes the importance of sun protection. The trend illustrates consistently high UV levels throughout the year, especially from January to April, where the index frequently reaches 14 and above. As summer transitions to fall, UV Index values typically remain elevated, indicating that residents and visitors alike should remain vigilant about sun safety. For detailed information on Oeiras' UV Index, visit Oeiras UV Index.
UV Risk Categories
August shines brightly in Oeiras, Brazil, where the sun graces the skies with an impressive 348 hours of sunlight. This peak in sunshine hours not only marks the height of the winter season but also continues a trend of increasing daylight as the year progresses. From the 251 hours of January, each month sees gradual growth, culminating in this vibrant August. Following closely, September and October maintain this radiant momentum with 344 and 354 hours, respectively, emphasizing Oeiras' reputation for abundant sunshine. As the year wanes, the consistency of light remains, showcasing an annual rhythm that makes this picturesque locale a perfect retreat for sun-seekers year-round.
In August, Oeiras, Brazil, basks in its sunniest days of the year, with an impressive 81% chance of clear skies. This peak in sunshine follows a steady upward trend from the cooler months; after a modest 31% in April, the likelihood of sun escalates through the winter months, culminating in July’s 77%. The transition to August brings a vibrant warmth, making it a prime time for outdoor activities and soaking up the sun. As summer gives way to slightly cooler September days, the sun still shines brightly 73% of the time. With such favorable conditions, August truly stands out as a golden month in Oeiras, inviting both locals and visitors to embrace the outdoor charms of this beautiful coastal city.
In Oeiras, Brazil, the rhythm of daylight beautifully transforms throughout the year, reaching a consistent 12 hours from January to March. As the year unfolds, daylight hours gradually decrease to 11 hours during the mid-year months of April through August. Interestingly, August maintains this shorter duration, which marks a transition period before the sun begins to extend its embrace once again. Come September, Oeiras experiences a return to longer days, with daylight expanding back to 12 hours, signaling the onset of longer, brighter days leading into the final months of the year. This gradual ebb and flow of daylight creates a unique charm in Oeiras, perfectly aligned with the vibrancy of Brazilian life.
As August unfolds in Oeiras, Brazil, the winds begin to pick up, reaching an average speed of 4.6 m/s (10 mph). This marks the culmination of a steady increase in wind velocity over the summer months, where a gradual rise from 1.8 m/s (4 mph) in January to a breezy 4.1 m/s (9 mph) in July sets the stage for this peak. Following August, a gentle decline in wind speeds is observed, with September bringing a slight dip to 3.5 m/s (8 mph). This trend highlights how the summer months in Oeiras are characterized by increasingly lively breezes, providing a refreshing contrast to the calmer winds experienced earlier in the year. As autumn approaches, the air becomes less brisk, inviting a tranquil return to the softer wind conditions reminiscent of winter's chill.
Weather in Oeiras varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Oeiras, focusing on differences in temperature, rainfall, humidity, and UV levels.
In August, Oeiras experiences warm temperatures with a minimum of 20°C (68°F) and averages around 30°C (86°F), peaking at a scorching 38°C (101°F). This month is characterized by dry conditions, with no recorded precipitation and a moderate humidity level of 58%. In contrast, January sees slightly higher minimum temperatures, starting at 22°C (71°F), with an average of 28°C (82°F) and a maximum of 39°C (103°F). However, it is a much wetter month, with 82 mm (3.2 in) of rainfall spread over 14 days, resulting in a much higher humidity of 90%. For more details, you can check Oeiras weather in January.
August and February showcase contrasting weather patterns. In August, temperatures range from a minimum of 20°C (68°F) to a maximum of 38°C (101°F), with an average of 30°C (86°F) and no recorded precipitation, resulting in a relatively dry and less humid atmosphere, with humidity at 58%. Conversely, February presents a warmer landscape, with temperatures starting slightly higher at a minimum of 22°C (72°F) and peaking at 37°C (98°F), averaging 27°C (81°F). This month is significantly wetter, with 217 mm (8.5 in) of precipitation over 21 days and humidity soaring to 91%, making the air feel much more saturated. For more details on how February weather in Oeiras can impact your plans, check out Oeiras weather in February.
When comparing the weather in August and March, notable differences emerge. August typically presents a hotter climate, with minimum temperatures around 20°C (68°F) and an average high of 30°C (86°F), while March starts slightly warmer, with a minimum of 21°C (70°F) and maximum temperatures reaching 35°C (94°F). August boasts dry conditions with no recorded precipitation and a moderate humidity level of 58%, making it a perfect month for outdoor activities. In contrast, March experiences significantly higher rainfall, with a total of 159 mm (6.3 in) over 22 days, leading to a much more humid environment at 93%. For more detailed insights into March weather, you can check Oeiras weather in March.
In comparing the weather of August and April, it’s clear that August tends to be hotter and drier, with average temperatures reaching up to 30°C (86°F) and no recorded precipitation. In contrast, April experiences milder temperatures, with an average of 27°C (82°F), but sees significant rainfall, totaling 86 mm (3.4 in) over 14 rainy days. Furthermore, April's humidity is notably higher at 92%, making it feel quite muggy compared to the more comfortable 58% humidity in August. For more details on the specific weather patterns in April, you can visit Oeiras weather in April.
In comparison to May, August in Oeiras presents a noticeably drier and hotter climate. While May boasts a minimum temperature of 21°C (70°F) and an average of 29°C (84°F), August's temperatures are slightly higher, with a minimum of 20°C (68°F) and an average of 30°C (86°F). Additionally, August enjoys a dry spell with no recorded precipitation, whereas May experiences about 13 mm (0.5 in) over three days. Humidity levels in May are also higher at 87%, compared to 58% in August, making the earlier month feel more muggy. For a more detailed look at May's weather, check out Oeiras weather in May.
In comparing the weather between June and August, we observe that both months experience warm temperatures, with June starting slightly cooler with an average of 29°C (84°F) compared to August's 30°C (86°F). The minimum temperatures in both months are consistent at 20°C (68°F), while the maximum in August can reach up to 38°C (101°F), slightly higher than June's max of 37°C (98°F). Notably, June experiences a small amount of precipitation, totaling 3 mm (0.1 in), while August remains completely dry with no recorded precipitation. Additionally, humidity levels are higher in June at 77%, compared to August's 58%, contributing to a more humid feel during the earlier month. For those interested in a more detailed look at June's climate, you can find more information here: Oeiras weather in June.
When comparing the weather in August to that of July, we notice a slight shift in temperature and humidity. August experiences a minimum temperature of 20°C (68°F) and an average temperature of 30°C (86°F), while July has a slightly warmer minimum of 21°C (70°F) and an average of 29°C (84°F). Both months share the same maximum temperature of 38°C (101°F) and record no precipitation, but August boasts a lower humidity level of 58% compared to July's 66%. This makes August feel a bit drier and potentially more comfortable despite the similar extreme temperatures. For more details on July's weather, check Oeiras weather in July.
August and September exhibit warm and dry weather, though September tends to be slightly warmer overall. In August, temperatures range from a minimum of 20°C (68°F) to a maximum of 38°C (101°F), while September sees a slightly higher range, with minimum temperatures at 21°C (71°F) and maximum temperatures reaching 40°C (104°F). Both months experience no precipitation and consistent humidity levels, although September’s humidity is a touch lower at 51% compared to August's 58%. For a closer look at September weather specifics, check out Oeiras weather in September.
In August, the weather tends to be quite warm, with temperatures ranging from a minimum of 20°C (68°F) to a maximum of 38°C (101°F) and an average of 30°C (86°F). This month is characterized by dry conditions, as there is no recorded precipitation and humidity levels hover around 58%.
In contrast, October experiences slightly higher minimum and average temperatures, with a minimum of 23°C (74°F) and an average of 32°C (90°F). The maximum temperature can reach up to 40°C (104°F), but unlike August, October sees some rainfall, totaling 20 mm (0.8 in) over two days. Humidity also decreases to 45%, making October feel a bit different in comparison to the sweltering August heat. For more detailed information on the weather during this month, you can refer to Oeiras weather in October.
In comparing the weather between August and November, we see some notable differences. August typically boasts warm temperatures with a minimum of 20°C (68°F) and a maximum of 38°C (101°F), coupled with dry conditions, as there is no recorded precipitation and an average humidity of 58%. In contrast, November starts with a slightly warmer minimum of 22°C (72°F) and reaches an even higher maximum of 39°C (103°F). However, November is characterized by increased precipitation, totaling 51 mm (2.0 in) over six days, and lower humidity at 41%. For more detailed insights, you can find information specific to Oeiras weather in November.
August and December present contrasting weather conditions. In August, temperatures range from a minimum of 20°C (68°F) to a maximum of 38°C (101°F), with an average of 30°C (86°F) and no recorded precipitation. The humidity stands at a comfortable 58%, making it a dry month. In contrast, December sees slightly higher temperatures, with a minimum of 22°C (72°F) and a maximum of 39°C (102°F), averaging 29°C (84°F). However, it experiences significant rainfall, with 81 mm (3.2 in) of precipitation over 10 days, leading to increased humidity at 67%. For a detailed look at December weather, check out Oeiras weather in December.
In August, Oeiras experiences a notable shift in weather, characterized by consistently warm and dry conditions. With an average temperature comfortably hovering around 30°C (86°F) and no precipitation, August stands out as one of the driest months of the year, making it a welcoming time for outdoor activities. The 58% humidity adds a touch of warmth without the discomfort often found in peak summer. Compared to other months, where rain might play a frequent role, August offers an exceptional opportunity to enjoy the radiant sunshine and pleasant evenings. For more insights on Oeiras' unique weather patterns, visit Oeiras Climate.