Last updated: August 21, 2025
August in Petropolis, Brazil offers a blend of warm days and cool nights, with maximum temperatures reaching up to 32°C (89°F) and an average climate sitting comfortably at 19°C (66°F). However, the month also sees a drop to minimum temperatures around 8°C (46°F), perfect for cozy evenings. While precipitation occurs on approximately 9 days, accumulating to about 63 mm (2.5 in), the humidity remains relatively high at 73%, creating a lush atmosphere. Whether you’re exploring the scenic landscapes or enjoying the local culture, August presents a unique experience in this charming mountain town.
In August, Petropolis, Brazil experiences a notable shift in temperatures as winter begins to wane. The month features a chilly minimum of 8°C (46°F), which gently rises to an average of 19°C (66°F)—a slight improvement from the cooler July temperatures. On warmer days, highs could reach up to 32°C (89°F), hinting at the approaching spring warmth. This trend indicates a gradual transition, characterized by crisp mornings giving way to pleasantly mild afternoons, making August a perfect time to enjoy the city's stunning landscapes without the heat of the impending summer.
August in Petropolis, Brazil, sees a moderate precipitation total of 63 mm (2.5 in), which is a slight uptick from the preceding months of July, known for its dry spell with only 30 mm (1.2 in) over just five days. The rainfall pattern during this transition month indicates a return to more consistent moisture after the drier summer period, reflected in 9 days of rain, similar to the preceding month. Notably, while precipitation begins to rise again, it still remains considerably lower than the peaks observed in other months, particularly the wettest periods from November to February, suggesting that August serves as a bridge to the region’s wetter season. This rhythm of varying precipitation underscores the dynamic climate of Petropolis, where summer's late grip still gives way to the early whispers of rain, setting the stage for the lush landscapes that lie ahead.
In Petropolis, Brazil, August marks a significant shift in humidity levels, dropping to 73% from the higher percentages seen earlier in the year. This decrease continues the trend established throughout the winter months, where humidity levels have steadily declined from a peak of 86% in March. As the city transitions from the cooler, damper conditions of June and July, residents experience a more comfortable environment with the lowest humidity of the year so far. The gradual reduction culminates in September, where humidity further eases to 68%, hinting at the approaching dry season. The progressive drop in humidity from the summer's sultry highs provides a refreshing outlook as Petropolis prepares for the drier months ahead.
August in Petropolis, Brazil, presents a very high UV Index of 9, with a burn time of just 15 minutes. This marks a slight moderation from the extreme levels seen in the earlier months, such as January through April, where indices were consistently above 11. As the year progresses, the trend dips to a high level in June and July, before climbing back to very high in August. It’s essential for residents and visitors alike to remain vigilant and protect their skin during this month, as UV exposure can still be significant. For more detailed information on UV levels throughout the year, check the complete Petropolis UV Index.
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In Petropolis, Brazil, August brings a moderate dose of sunshine, boasting 278 hours of bright days. As winter transitions into spring, the sunlight gradually increases, echoing a promising trend set in earlier months. While January and February see a robust start with 270 hours each, the sunshine peaks in March at 310 hours, setting the tone for a vibrant year ahead. The spring months, particularly September's 298 hours, continue this upward trajectory, making the city's weather increasingly inviting. Overall, the sunshine hours display a rhythmic pattern, where each month, aside from a few fluctuations, gradually enhances Petropolis’s charm, culminating in a splendid December which shines through with an impressive 312 hours of sunshine.
In Petropolis, Brazil, August offers a 53% chance of sunny weather, making it one of the more favorable months for clear skies. As summer transitions toward spring, this likelihood reflects a noticeable upward trend from the cooler, cloudier months earlier in the year. Following July's peak sunshine probability of 63%, August maintains a strong potential for bright days, outshining the drearier depths of winter. While certainly not the sunniest month of the year, August still boasts a significant chance of sunshine compared to the lower rates seen during other months, particularly from October to December, where probabilities dip to as low as 14%. Embrace the warmth and enjoy outdoor activities, as August in Petropolis can serve as a delightful escape into milder, sunnier weather.
In Petropolis, Brazil, the August daylight duration marks a delightful transition in the year. With 11 hours of daylight, it reflects a subtle increase from the shorter days of winter months, such as June and July, which each offer only 10 hours. Following August, daylight remains consistent at 11 hours through September, before gradually extending again into the latter months of the year. This trend showcases the region's gradual shift from the cooler, darker days towards the warmth of spring and summer, creating a perfect atmosphere for outdoor activities and exploration as days begin to lengthen once more.
In August, the winds in Petropolis, Brazil, begin to pick up, reaching an average speed of 1.8 m/s (4 mph), marking a noticeable increase from the earlier months. This upward trend continues into September, where the winds strengthen further with an average speed of 1.9 m/s (4 mph). Compared to the gentle breezes of the preceding summer months, August heralds a shift towards more invigorating gusts, hinting at changing atmospheric conditions as the region transitions into the cooler seasons. As the year progresses, wind speeds maintain a steadier rhythm, hovering around the 4 mph mark from October to December, suggesting a consistent backdrop of breezy days perfect for outdoor activities amidst Petropolis’s scenic beauty.
Weather in Petropolis varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Petropolis, focusing on differences in temperature, rainfall, humidity, and UV levels.
In August, the weather in Petropolis tends to be mild, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 32°C (89°F) and an average of 19°C (66°F). The month experiences relatively moderate precipitation of 63 mm (2.5 in), spread over about 9 days, and humidity levels average around 73%. In contrast, January brings warmer conditions, with temperatures ranging from a minimum of 17°C (63°F) to a peak of 34°C (93°F) and an average of 25°C (77°F). This month is also marked by significantly higher rainfall, totaling 212 mm (8.3 in) over approximately 18 days, and humidity levels rise to around 85%. For more detailed insights on January weather, visit Petropolis weather in January.
August and February showcase contrasting weather patterns. In August, temperatures range from a minimum of 8°C (46°F) to a maximum of 32°C (89°F), with an average of 19°C (66°F). The month sees a moderate amount of rainfall, totaling 63 mm (2.5 in) over about 9 days, and a humidity level of 73%. In contrast, February experiences significantly warmer weather, with temperatures spanning from 18°C (64°F) to 35°C (94°F), and an average of 24°C (76°F). Precipitation is much higher during this month, accumulating to 302 mm (11.9 in) over 20 days, and humidity levels rise to 85%. For more details, consider visiting Petropolis weather in February.
In comparing the weather between August and March, August presents a cooler range with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 32°C (89°F), averaging around 19°C (66°F). Precipitation in August is moderate, with 63 mm (2.5 in) over 9 days and a humidity level of 73%. In contrast, March tends to be warmer, with temperatures averaging 24°C (76°F), peaking at 33°C (92°F) and starting from a minimum of 15°C (60°F). However, March experiences significantly higher rainfall of 209 mm (8.2 in) spread across 21 days, and a higher humidity level of 86%. For more detailed information about March weather, you can refer to Petropolis weather in March.
When comparing the weather in April and August, several notable differences emerge. April tends to be warmer overall, with average temperatures reaching 22°C (72°F) and a maximum of 33°C (92°F), while August has a lower average temperature of 19°C (66°F) and a max of 32°C (89°F). However, April experiences higher rainfall, with 92 mm (3.6 in) of precipitation over 15 days, compared to August's 63 mm (2.5 in) over 9 days. Additionally, April has a slightly higher humidity level at 83%, compared to August's 73%. For more detailed information about April's weather, check out Petropolis weather in April.
In comparing the weather between August and May, we see that both months exhibit relatively mild temperatures, with averages hovering around 19°C (66°F) in August and 20°C (68°F) in May. August experiences slightly cooler minimum temperatures, starting at 8°C (46°F), compared to May's minimum of 9°C (49°F). Both months share a similar maximum temperature, with August reaching up to 32°C (89°F) and May peaking at 31°C (88°F). Precipitation levels are also comparable, as both months receive approximately 64-63 mm (2.5 in) of rain over the same number of days—nine in total. However, humidity is slightly lower in August at 73%, compared to May's 81%. Interested in more details? Check out Petropolis weather in May.
In comparing the weather of August and June, we observe that both months have similar average temperatures, with August averaging 19°C (66°F) and June slightly warmer at 20°C (68°F). However, August experiences a broader temperature range, with minimums dropping to 8°C (46°F) and maximums peaking at 32°C (89°F), compared to June's minimum of 10°C (50°F) and maximum of 30°C (87°F). Precipitation levels are higher in August, totaling 63 mm (2.5 in) over 9 days, versus June's 45 mm (1.8 in) also over 9 days. Humidity is slightly lower in August at 73% compared to June's 80%. For more information about June weather specifically, please visit Petropolis weather in June.
In comparing the weather of July and August, we can see notable differences in both temperature and precipitation. August experiences slightly warmer temperatures, with a minimum of 8°C and an average of 19°C, while July's minimum is 7°C and average is 18°C. The maximum for August reaches 32°C, compared to July’s 30°C. Precipitation levels also rise in August, with 63 mm over 9 days, whereas July sees only 30 mm over 5 days. Humidity remains relatively similar, slightly decreasing from 76% in July to 73% in August. For more detailed information, you can refer to Petropolis weather in July.
August and September present a noticeable shift in weather patterns. In August, the temperatures range from a minimum of 8°C (46°F) to a maximum of 32°C (89°F), with an average of 19°C (66°F). This month sees approximately 63 mm (2.5 in) of precipitation over 9 days, and the humidity sits at a relatively high 73%. In contrast, September offers slightly warmer temperatures, with a minimum of 11°C (52°F) and a maximum reaching 35°C (95°F), averaging around 21°C (71°F). The precipitation increases slightly to 67 mm (2.6 in) over 10 days, while the humidity decreases to 68%. For more detailed information, you can check Petropolis weather in September.
In comparing the weather between August and October, we see a notable increase in temperatures as October experiences a minimum of 13°C (56°F) and an average of 22°C (72°F), contrasted with August's minimum of 8°C (46°F) and average of 19°C (66°F). Also, October peaks at a maximum of 36°C (98°F), significantly higher than August's maximum of 32°C (89°F). However, October does come with increased precipitation, recording 142 mm (5.6 in) over 18 days, compared to August's 63 mm (2.5 in) over 9 days, indicating a wetter season. Despite the greater rainfall, October features lower humidity levels at 61%, while August maintains higher humidity at 73%. For a more detailed look, you can check out Petropolis weather in October.
In August, the weather is generally mild, with average temperatures ranging from a cool 8°C (46°F) at night to a warm 32°C (89°F) during the day. The month sees fairly moderate precipitation, with around 63 mm (2.5 in) of rain over approximately 9 days, and humidity levels around 73%. In contrast, November experiences higher temperatures, with a minimum of 11°C (53°F) and a maximum of 35°C (95°F), alongside significantly increased precipitation of 250 mm (9.9 in) across 19 days, while humidity remains slightly lower at 72%. For more details about November weather specifically in Petropolis, visit Petropolis weather in November.
August and December in Petropolis showcase notable contrasts in weather patterns. August typically experiences cooler temperatures with a minimum of 8°C (46°F) and an average of 19°C (66°F), peaking at 32°C (89°F). In contrast, December brings warmer conditions, with temperatures starting at a minimum of 14°C (57°F) and averaging 24°C (75°F), reaching highs of 33°C (92°F). Precipitation also varies significantly; August sees 63 mm (2.5 in) over 9 days, while December has much heavier rainfall at 288 mm (11.3 in) across 24 days. Despite both months having high humidity levels—73% in August and slightly higher at 75% in December—December’s extended rainfall makes it a notably wetter month. For more information, visit Petropolis weather in December.
In August, Petropolis experiences a unique blend of warmth and moisture, setting it apart from other months. With daytime temperatures peaking at a comfortable 32°C, the evenings cool down significantly, inviting a refreshing change. While the average temperature hovers around a mild 19°C, August also sees a rise in humidity, averaging at 73%, and occasional rain, with precipitation recorded over 9 days. This balance of warmth and moisture makes August an intriguing month, as it transitions into the drier spell of the year, offering a delightful escape from the more extreme weather. For those looking to understand the Petropolis Climate more comprehensively, explore our detailed guide here: Petropolis Climate.