Last updated: August 21, 2025
January in Itatiaia, Brazil, showcases a warm and humid climate, with maximum temperatures reaching up to 32°C (90°F) and an average of 23°C (73°F). Visitors can expect minimum temperatures around 15°C (60°F), making it a comfortable season for outdoor activities. However, the month is marked by substantial rainfall, totaling 291 mm (11.5 in) over 20 days, resulting in an 85% humidity level. This blend of warmth and moisture not only contributes to lush landscapes but also offers a unique atmosphere for exploring the natural beauty of the region.
In Itatiaia, Brazil, January welcomes warm summer temperatures, with minimums hovering around 15°C (60°F), an average of 23°C (73°F), and maximums peaking at 32°C (90°F). This month serves as a vibrant transition into the hotter part of the year, as temperatures generally trend upward with February showcasing slightly higher maxima at 33°C (92°F). Interestingly, as the year progresses into the cooler months of fall and winter, the minimum temperatures dip down to as low as 5°C (40°F) in July. Despite this drop, the average temperatures remain relatively mild, ranging from 16°C (61°F) to 22°C (72°F). The fluctuations throughout the year highlight Itatiaia's diverse climate, where the warmth of January gives way to cooler evenings by mid-year, making it a uniquely appealing destination for visitors looking to experience both summer warmth and refreshing mountain coolness.
In January, Itatiaia experiences significant rainfall, with precipitation totaling 291 mm (11.5 in) over approximately 20 days. This robust amount of rain marks the beginning of the wet season, setting the stage for even wetter months ahead. February sees an uptick in rainfall, rising to 333 mm (13.1 in), while March follows closely with 281 mm (11.1 in), highlighting a pattern of sustained moisture during the summer months. As the year progresses into April and May, precipitation dramatically decreases, dropping to 119 mm (4.7 in) and 74 mm (2.9 in), respectively. This trend continues through the dry winter months of June and July, where rainfall dwindles to just 40 mm (1.6 in) and 33 mm (1.3 in), illustrating the region's marked seasonal variability. Interestingly, October sees a resurgence of rainfall, likely foreshadowing the heavy showers that return by December, culminating in a staggering 414 mm (16.3 in). Overall, January's precipitation underscores Itatiaia's dynamic climate, characterized by a feast-or-famine pattern of rainfall throughout the year.
In January, Itatiaia experiences high humidity levels, averaging around 85%, which is consistent with February's conditions. As the months progress towards March, humidity slightly increases to 86%, suggesting a moist atmosphere that continues to linger. However, by April, there's a gentle decline to 83%, followed by a gradual drop throughout the colder months, reaching a low of 76% in July. This trend of decreasing humidity persists into late summer, with October showing a more pronounced drop to 61%, marking the driest period of the year. As the region transitions back into spring, humidity begins to rise again, peaking at 72% in November before settling at 75% in December. Overall, the data highlights a distinct seasonal fluctuation in humidity, with January setting the stage for a generally moist climatic pattern that significantly shifts as the year progresses.
In January, Itatiaia, Brazil, experiences an extreme UV Index of 16, indicating a remarkably high risk of harm from unprotected sun exposure, with a quick burn time of only 10 minutes. This intensity is consistent throughout the month of February, maintaining the same UV Index and burn time, before slightly tapering off in March and April, which still reflect extreme conditions. As the year progresses into May, the UV Index drops to 8, categorized as very high, suggesting a slight relief with a longer burn time of 15 minutes. However, the trend shifts back to extreme levels in the latter part of the year, particularly in September through December, where the UV Index again peaks at 14 to 16, reminding residents and visitors alike to stay vigilant against sun exposure. This consistent data underscores the necessity for protective measures year-round; for further details on UV Index variations, visit Itatiaia UV Index.
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In January, Itatiaia basks in 243 hours of sunshine, marking the beginning of a year filled with vibrant light. As summer unfolds, the days grow even brighter, peaking in March with 300 hours of radiant sunshine. This trend of ample sunshine continues through July, maintaining the same joyful count, before gradually declining as autumn approaches. Despite the decrease, February and September hold strong with 257 and 298 hours, respectively, ensuring that each month contributes to Itatiaia’s sun-kissed charm. Overall, the year exhibits a captivating cycle, with longer sunny days inviting adventure and exploration in this breathtaking Brazilian locale.
In January, Itatiaia, Brazil, experiences a modest 22% chance of sunny weather, setting the tone for a month that transitions gradually into brighter skies. As the year progresses, the likelihood of sunny days notably increases, peaking in July with an impressive 63% chance. This trend illustrates a shift from the cooler, cloudier months of October and November, which both hover around 12% and 24%, respectively. March and April serve as transitional months, showcasing a significant uptick in sun exposure, while May maintains a healthy 42% chance. By August, the sunny weather begins to recede slightly but still holds strong at 52%. Overall, the January sun in Itatiaia hints at the promise of sunnier days to come.
In Itatiaia, Brazil, the month of January shines brightly with an impressive 13 hours of daylight, marking the peak of summer. This abundance of sunlight gradually tapers off in February and March, where daylight lingers at 12 hours, signaling the onset of early autumn. As the days continue to shorten through April and May, daylight settles at 11 hours before dipping to its lowest point of 10 hours in the cooler months of June and July. However, as winter fades, daylight begins to lengthen again in August and September, returning to 11 hours. The cycle continues with a gradual return to 12 hours in October and back to 13 hours in November and December, embracing the warmth of summer once more. This rhythmic ebb and flow of daylight not only influences the local climate but also shapes the vibrant lifestyle of the region across the year.
In Itatiaia, Brazil, January tends to greet its visitors with a gentle average wind speed of 1.3 m/s (3 mph), setting a calm tone for the start of the year. This tranquil breeze is characteristic of the early summer months, as wind speeds remain quite consistent in February and March. However, as April rolls in, a slight increase to 1.4 m/s (3 mph) suggests a subtle shift toward a breezier season. The winds gradually pick up momentum, culminating in a noticeable uptick throughout the latter half of the year. By September, the average wind speed reaches 1.6 m/s (4 mph), peaking in October at 1.7 m/s (4 mph), before tapering back down in the final months. This evolving pattern highlights a transition from the soft whispers of January winds to the invigorating gusts that beckon the arrival of the autumn season.
Weather in Itatiaia varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Itatiaia, focusing on differences in temperature, rainfall, humidity, and UV levels.
January and February exhibit similar weather patterns, although February tends to be slightly warmer overall. In January, temperatures range from a minimum of 15°C (60°F) to a maximum of 32°C (90°F), with an average of 23°C (73°F). The month also sees significant rainfall, totaling 291 mm (11.5 in) over 20 days, paired with a humidity level of 85%. In contrast, February records a higher maximum temperature of 33°C (92°F) while maintaining a similar minimum of 15°C (60°F) and a slightly lower average of 22°C (72°F). Precipitation increases to 333 mm (13.1 in) across 22 days, with humidity remaining constant at 85%. For a detailed look at February weather in Itatiaia, you can check Itatiaia weather in February.
In January, the weather is characterized by a minimum temperature of 15°C (60°F) and an average of 23°C (73°F), reaching a maximum of 32°C (90°F). The month experiences significant rainfall, with 291 mm (11.5 in) spread over 20 days and a high humidity level of 85%. In contrast, March sees slightly cooler temperatures, with a minimum of 13°C (55°F), an average of 22°C (72°F), and a maximum of 31°C (89°F). Precipitation is also high in March, at 281 mm (11.1 in) over the same number of rainy days, accompanied by slightly increased humidity at 86%. For more detailed information on March weather, visit Itatiaia weather in March.
In comparing the weather of January and April, January tends to be warmer with average temperatures ranging from a minimum of 15°C (60°F) to a maximum of 32°C (90°F), contrasted with April's milder temperatures which show a range from 11°C (52°F) to 31°C (88°F). January also experiences significantly higher precipitation, with 291 mm (11.5 in) spread over 20 days, while April sees only 119 mm (4.7 in) of rain over 16 days. Moreover, humidity levels are quite similar, with January at 85% and April slightly lower at 83%. For additional details on April weather, you can check this link: Itatiaia weather in April.
In January, the weather is much warmer, with average temperatures ranging from a mild 23°C (73°F) to a hot 32°C (90°F), while May offers cooler temperatures, averaging around 18°C (64°F) with a maximum of 28°C (83°F). January sees a significantly higher amount of precipitation at 291 mm (11.5 in) over 20 days, compared to May's much lower total of 74 mm (2.9 in) across just 10 days. Additionally, January has higher humidity levels at 85%, while May's humidity is slightly lower at 81%. For more details, check out Itatiaia weather in May.
When comparing the weather in January and June, notable differences emerge in both temperature and precipitation. January tends to be significantly warmer, with average temperatures ranging from a minimum of 15°C (60°F) to a maximum of 32°C (90°F), while June presents cooler conditions, with temperatures spanning from a minimum of 7°C (46°F) to a maximum of 29°C (84°F). Furthermore, January experiences much higher rainfall, totaling 291 mm (11.5 in) across 20 days, in contrast to June's lighter precipitation of only 40 mm (1.6 in) over 9 days. Humidity levels are also relatively high in both months, at 85% in January and 80% in June, contributing to a noticeably different feel in the air. For those interested in more detailed information, you can check Itatiaia weather in June.
In January, the weather is noticeably warmer, with temperatures ranging from a minimum of 15°C (60°F) to a maximum of 32°C (90°F), and an average temperature of 23°C (73°F). This month also experiences significant rainfall, with approximately 291 mm (11.5 in) of precipitation spread over 20 days, resulting in high humidity levels of around 85%. In contrast, July sees much cooler temperatures, with a minimum of 5°C (40°F), an average of 16°C (61°F), and a maximum of 27°C (81°F). Precipitation drops dramatically to 33 mm (1.3 in) over just 5 days, and humidity decreases to 76%, providing a much drier atmosphere compared to January. For more details on the weather patterns during this month, you can visit Itatiaia weather in July.
In January, the weather in Itatiaia is typically warmer and more humid, with average temperatures ranging from a minimum of 15°C (60°F) to a maximum of 32°C (90°F). This month experiences significant precipitation, averaging 291 mm (11.5 in) over 20 days, leading to a humidity level of around 85%. In contrast, August offers a cooler climate, with temperatures ranging from a minimum of 5°C (41°F) to an average of 17°C (63°F) and a maximum of 30°C (86°F). Precipitation is much lower at 71 mm (2.8 in) over just 9 days, resulting in a reduced humidity of 73%. For more information about Itatiaia's weather in August, visit Itatiaia weather in August.
In January, the weather is notably warmer and wetter compared to September. With temperatures ranging from a minimum of 15°C (60°F) to a maximum of 32°C (90°F), January averages a comfortable 23°C (73°F) but experiences significant rainfall, totaling 291 mm (11.5 in) over 20 days, paired with high humidity at 85%. In contrast, September brings cooler temperatures with a minimum of 8°C (47°F) and a more moderate average of 20°C (68°F), peaking at 33°C (92°F). Precipitation in September is significantly lower at 90 mm (3.5 in) and occurs over just 11 days, contributing to a more pleasant humidity level of 68%. For more details, check out Itatiaia weather in September.
January and October present distinct weather patterns. In January, temperatures typically range from a minimum of 15°C (60°F) to a maximum of 32°C (90°F), with an average of 23°C (73°F). The month is characterized by high humidity at 85% and significant rainfall, with around 291 mm (11.5 in) of precipitation occurring over 20 days. In contrast, October offers slightly cooler weather, with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 34°C (93°F) and an average of 21°C (69°F). This month experiences less precipitation, totaling about 200 mm (7.9 in) over 21 days, and the humidity drops to 61%. For more details on October weather, visit Itatiaia weather in October.
In January, the temperatures are generally warmer, with a minimum of 15°C (60°F) and an average of 23°C (73°F), compared to November's minimum of 11°C (52°F) and an average of 20°C (69°F). Both months experience similar maximum temperatures, reaching up to 32°C (90°F) in January and 32°C (89°F) in November. Precipitation levels are also comparable, with January receiving 291 mm (11.5 in) over 20 days, while November sees slightly less at 289 mm (11.4 in) over 21 days. Additionally, January has a higher humidity level at 85%, compared to November's 72%. For more details, check out Itatiaia weather in November.
When comparing the weather in January and December, January tends to be slightly warmer with average temperatures ranging from a minimum of 15°C (60°F) to a maximum of 32°C (90°F), while December sees slightly cooler averages, with minimums of 12°C (53°F) and similar maximums reaching 32°C (89°F). Although both months experience heavy rainfall, December has a higher total precipitation of 414 mm (16.3 in) over 26 days compared to January's 291 mm (11.5 in) over 20 days. Humidity is generally higher in January at 85%, compared to December's 75%, contributing to a more muggy feel in the early new year. For a more detailed look at December weather, you can visit Itatiaia weather in December.
As January unfolds in Itatiaia, the weather presents a distinct and vibrant atmosphere compared to other months. With maximum temperatures soaring to a balmy 32°C, this period embodies the heart of summer, inviting both locals and visitors to enjoy outdoor activities amidst lush landscapes. The average temperature offers a pleasantly warm backdrop, while the high humidity levels contribute to a lush, tropical feel. However, January is also marked by notable precipitation, with frequent rain showers occurring on around 20 days, which can bring relief from the heat and enrich the region's natural beauty. If you're planning a trip, understanding these unique January weather patterns will help you maximize your experience. For further details, check out Itatiaia Climate.