Last updated: August 21, 2025
In August, Itatiaia, Brazil, experiences a diverse climate characterized by temperatures ranging from a minimum of 5°C (41°F) to a maximum of 30°C (86°F), with an average of 17°C (63°F). This month sees 71 mm (2.8 in) of precipitation, spread over approximately 9 days, contributing to the region's lush greenery. With a relative humidity of 73%, visitors can expect a refreshing atmosphere, making Itatiaia an ideal destination for nature lovers and adventure seekers alike.
In August, Itatiaia experiences a subtle shift as winter gradually gives way to the warmth of spring. The temperatures are quite cool, with minimums dipping to 5°C (41°F) and average highs reaching 30°C (86°F). This month, the average temperature hovers around 17°C (63°F), making it a comfortable time for outdoor activities amidst the breathtaking natural landscapes. While nights can be chilly, the days offer a pleasant warm-up, reflecting the transitional nature of the season. As the month progresses, you'll likely notice a slight increase in warmth, hinting at the vibrant spring just around the corner.
In August, Itatiaia experiences a modest precipitation of 71 mm (2.8 in), marking a slight uptick from the dry spells of July, which saw only 33 mm (1.3 in) over 5 days. This month typically serves as a transitional period, with rainfall re-emerging after the driest months of June and July. Despite the increase in precipitation days to 9, August is still relatively dry compared to the wetter months that follow, such as October and December, which often deliver significant rainfall. The climatic pattern indicates that while August may not be the rainiest month, it unmistakably sets the stage for the upcoming wetter seasons, transitioning from a dry winter to a more humid spring.
In August, Itatiaia experiences a pleasant dip in humidity, reaching 73%, which is part of a downward trend that has been observed since the peak wet months at the start of the year. Following the high humidity levels of January and February at 85%, the region gradually cools down, with levels steadily decreasing to a comfortable atmosphere as summer transitions into fall. This drop continues through September to October, where humidity plummets to 68% and 61%, respectively, making it a more refreshing time for outdoor activities and exploration in this beautiful Brazilian landscape. The shift towards lower humidity from the earlier months not only enhances the overall comfort but also sets the stage for the picturesque autumn season that follows.
The UV Index in Itatiaia, Brazil shows a distinct pattern throughout the year, with extreme levels dominating the first half and gradually decreasing as the year progresses. August experiences a very high UV Index of 10, allowing for a slightly longer burn time of 15 minutes before skin damage can occur. This month continues the trend of elevated UV levels from earlier in the summer, though slightly milder than the peak months of January to April, which all reached an extreme index of 16 and only allowed a brief 10-minute exposure. Following August, the index climbs again into the extreme range come September, highlighting the importance of sun protection year-round. To stay informed, check out the detailed Itatiaia UV Index for current and forecasted levels.
UV Risk Categories
In August, Itatiaia, Brazil, basks in a warm embrace of 276 sunshine hours, marking a slight dip from the peak month of March, which recorded a vibrant 300 hours. While August might not lead the year, it still offers plenty of glorious days, contributing to a gentle downward trend from the high point of July. As the seasons transition, the latter part of the year sees consistently generous sunlight, with September quickly bouncing back to 298 hours, hinting at the region's sunny disposition continuing well into spring. Overall, Itatiaia enjoys a remarkable average of sunshine, making each month an ideal time to explore the breathtaking natural beauty that surrounds this captivating Brazilian town.
In Itatiaia, Brazil, the likelihood of sunny weather sees a notable shift as the year progresses. January and February start off with a modest chance of sunshine at 22% and 24% respectively, gradually increasing through the months. By March, the sun's presence becomes more prominent with a 38% likelihood, reaching a significant 45% in both April and May. The peak arrives in July as the sun shines down 63% of the time, offering a bright interlude before August dips slightly to 52%. As summer transitions into the latter part of the year, the probability then falls to 45% in September, before plummeting to 12% in October. This pattern showcases a clear trend of increasing sunshine toward the middle of the year, making August a delightful time for those seeking a balance of warmth and clear skies in Itatiaia.
In August, Itatiaia, Brazil experiences a refreshing shift as daylight persists for about 11 hours—a slight rebound from the shorter days of winter. This pattern marks a gradual increase in daylight that continues into the following months. As the year unfolds, the daylight duration ebbs and flows, peaking at 13 hours during the vibrant summer months of January and November. The transition from winter to spring is showcased as daylight steadily climbs back to 12 hours by October, setting the stage for the warmth and longer days ahead. Overall, August serves as a pivotal month, bridging the shorter winter days with the approaching brilliance of spring.
In August, Itatiaia, Brazil experiences a gentle increase in average wind speed, rising to 1.5 m/s (3 mph). This marks a subtle yet noticeable shift as the region transitions from the quieter winds of earlier months. Following a consistent pattern, the winds pick up slightly, setting the stage for September, which sees an uptick to 1.6 m/s (4 mph). Over the course of the year, the wind speeds tend to fluctuate around the 1.3 m/s mark, but August stands out as a time of burgeoning breezes, hinting at the approaching vitality of spring. As the seasons change, the monthly winds reflect a rhythmic dance, inviting visitors to embrace the refreshing embrace of nature.
Weather in Itatiaia varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Itatiaia, focusing on differences in temperature, rainfall, humidity, and UV levels.
The weather in August and January presents a striking contrast. In August, temperatures range from a minimum of 5°C (41°F) to a maximum of 30°C (86°F), with an average of 17°C (63°F). Precipitation is modest, with 71 mm (2.8 in) over 9 days and humidity sitting at 73%. In contrast, January is considerably warmer, with temperatures ranging from a minimum of 15°C (60°F) to a maximum of 32°C (90°F) and an average of 23°C (73°F). However, it is also much wetter, experiencing 291 mm (11.5 in) of rainfall spread over 20 days, along with higher humidity at 85%. For more details, check out Itatiaia weather in January.
August and February present contrasting weather patterns. In August, temperatures range from a chilly minimum of 5°C (41°F) to a comfortable average of 17°C (63°F), reaching a maximum of 30°C (86°F). The month sees about 71 mm (2.8 in) of precipitation over approximately 9 days, with humidity levels at 73%. In stark contrast, February typically experiences milder temperatures, with a minimum of 15°C (60°F), an average of 22°C (72°F), and a peak of 33°C (92°F). However, it is also significantly wetter, receiving 333 mm (13.1 in) of rain across 22 days and higher humidity at 85%. For a more detailed look at February conditions, you can check Itatiaia weather in February.
When comparing the weather in August and March, it's clear that March tends to be warmer and much wetter. In August, temperatures range from a minimum of 5°C (41°F) to a maximum of 30°C (86°F), with an average of 17°C (63°F) and 71 mm (2.8 in) of precipitation spread over 9 days, while the humidity is relatively moderate at 73%. In contrast, March features higher temperatures, with a minimum of 13°C (55°F) and a maximum of 31°C (89°F), averaging at 22°C (72°F). However, March is significantly rainier, receiving 281 mm (11.1 in) of rainfall over 20 days and higher humidity at 86%. For more detailed insights, you can check out Itatiaia weather in March.
When comparing the weather in August and April, notable differences emerge in terms of temperature and precipitation. August typically experiences cooler temperatures with a minimum of 5°C (41°F) and an average of 17°C (63°F), while April enjoys warmer conditions, with a minimum of 11°C (52°F) and a higher average of 20°C (69°F). In terms of maximum temperatures, both months can reach similar highs, peaking at 30°C (86°F) in August and 31°C (88°F) in April. However, April tends to be wetter, receiving 119 mm (4.7 in) of precipitation over 16 days compared to August's 71 mm (2.8 in) over 9 days. Additionally, humidity levels are slightly higher in April at 83%, compared to August's 73%. For more details about April weather specifically, you can check this link: Itatiaia weather in April.
When comparing the weather in August and May, we notice that both months feature relatively mild temperatures, with May slightly warmer on average. August experiences a minimum of 5°C (41°F) and a maximum of 30°C (86°F), while May has a minimum of 6°C (42°F) and a maximum of 28°C (83°F). Precipitation is nearly identical in both months, with August seeing 71 mm (2.8 in) over 9 days and May recording 74 mm (2.9 in) over 10 days. However, humidity levels are higher in May at 81% compared to August's 73%, which can make May feel a bit more muggy. For a detailed look at May weather conditions, you can visit Itatiaia weather in May.
When comparing August and June weather, both months exhibit mild temperatures but with some notable differences. In June, the temperatures range from a minimum of 7°C (46°F) to a maximum of 29°C (84°F), with an average of 18°C (64°F). Conversely, August experiences a slightly broader temperature range, with lows of 5°C (41°F) and highs reaching 30°C (86°F), averaging 17°C (63°F). While June sees less precipitation at 40 mm (1.6 in) over 9 days, August has greater rainfall totaling 71 mm (2.8 in), also over 9 days. Additionally, humidity levels are slightly higher in June at 80%, compared to 73% in August. For more detailed insights, you can refer to Itatiaia weather in June.
In comparing the weather between July and August, we see that August tends to be warmer, with an average temperature of 17°C (63°F) compared to July's average of 16°C (61°F). The maximum temperatures also highlight this difference, reaching up to 30°C (86°F) in August, whereas July peaks at 27°C (81°F). Rainfall is significantly higher in August, with 71 mm (2.8 in) over 9 days, compared to only 33 mm (1.3 in) over 5 days in July. Additionally, the humidity slightly decreases from July's 76% to August's 73%. For a more detailed look at July weather, you can visit Itatiaia weather in July.
August and September present a notable shift in weather conditions, with September generally being warmer and slightly wetter. In August, temperatures range from a minimum of 5°C (41°F) to a maximum of 30°C (86°F), with an average of 17°C (63°F). This month sees 71 mm (2.8 in) of precipitation over 9 days, coupled with a humidity level of 73%. Conversely, September experiences higher temperatures, with a minimum of 8°C (47°F) and a peak of 33°C (92°F), averaging 20°C (68°F). Although precipitation increases to 90 mm (3.5 in) across 11 days, the humidity drops slightly to 68%. For a more detailed look at weather patterns, you can explore Itatiaia weather in September.
August and October exhibit notable differences in weather patterns. In August, temperatures range from a chilly 5°C (41°F) at night to a warm average of 17°C (63°F) and peak at 30°C (86°F). The month experiences 71 mm (2.8 in) of precipitation over 9 days, accompanied by a higher humidity level of 73%. In contrast, October offers milder nights with a minimum of 12°C (53°F) and a pleasant average of 21°C (69°F). Maximum temperatures can reach 34°C (93°F), yet this month sees a significant increase in rainfall, totaling 200 mm (7.9 in) over 21 days, along with a decrease in humidity to 61%. For more detailed insights on the climate, check out Itatiaia weather in October.
August and November display notable differences in weather patterns. In August, the temperatures range from a minimum of 5°C (41°F) to a maximum of 30°C (86°F), with an average temperature of 17°C (63°F). The month sees 71 mm (2.8 in) of precipitation over approximately 9 days, along with a humidity level of 73%. In contrast, November experiences warmer temperatures with a minimum of 11°C (52°F) and a maximum of 32°C (89°F), averaging 20°C (69°F). However, it also sees significantly higher precipitation, totaling 289 mm (11.4 in) across about 21 days, while maintaining a similar humidity level of 72%. For more detailed information on November weather, check Itatiaia weather in November.
In August, the weather in Itatiaia tends to be mild, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 30°C (86°F) and an average of 17°C (63°F). The month sees moderate precipitation, with about 71 mm (2.8 in) across nine days and humidity levels around 73%.
In contrast, December brings warmer and more humid conditions, with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 32°C (89°F), and an average of 22°C (71°F). However, it also experiences significantly higher precipitation, totaling 414 mm (16.3 in) over 26 days, while humidity rises slightly to 75%. For a more detailed overview, you can refer to Itatiaia weather in December.
August in Itatiaia presents a unique blend of mild temperatures and noticeable humidity, making it distinct from the surrounding months. While daily highs can reach a pleasant 30°C, the average temperature hovers around a cool 17°C, offering a refreshing respite from the summer heat. However, it's essential to prepare for the occasional downpour, as precipitation occurs on about nine days throughout the month. This blend of conditions creates a charming atmosphere but also invites visitors to embrace the unpredictability of Itatiaia's weather. For a deeper dive into how August compares to other times of the year, explore more at Itatiaia Climate.