Last updated: August 21, 2025
January in Itajaí, Brazil, is characterized by a tropical climate that brings both warmth and moisture. The maximum temperature can soar to a sizzling 34°C (93°F), while the average settles comfortably at 25°C (77°F). However, the cooler nights drop to a refreshing 19°C (66°F). This month witnesses significant rainfall, with 197 mm (7.7 in) distributed over approximately 20 days, contributing to a high humidity level of 86%. Visitors should prepare for both sun-soaked days and occasional showers, making it a vibrant, yet challenging time for outdoor activities.
In Itajai, Brazil, January is characterized by warm tropical temperatures, with minimums averaging 19°C (66°F) and reaching a peak of 34°C (93°F). This month enjoys an average temperature of 25°C (77°F), making it one of the hottest times of the year. As the year progresses, temperatures gradually cool down, with February maintaining similar highs but dipping slightly to a minimum of 16°C (61°F). By April, the mercury drops further, revealing a more temperate climate with averages dropping to 21°C (71°F). Transitioning into the cooler months, the temperature continues to decline, with July bringing a crisp average of 16°C (61°F) and minimums plummeting to 4°C (40°F). Ultimately, while January boasts the warmth and vibrancy of summer, Itajai's climate exhibits a fascinating trend of gradual cooling as the year unfolds, providing a varied experience for its visitors.
January in Itajai, Brazil, is marked by significant precipitation, with an average of 197 mm (7.7 inches) spread over 20 days. This makes it the wettest month of the year, setting the stage for a rainy summer. Following January, February and December also contribute to the region’s wet season, recording 175 mm (6.9 inches) each, but with slightly fewer rainy days. As the seasons transition, rainfall tapers off dramatically in the subsequent months, dropping to 156 mm (6.1 inches) in March and plummeting to just 49 mm (1.9 inches) by July. This trend illustrates a clear seasonal pattern in Itajai, where a rainy January heralds a shift towards drier months ahead, vital for agriculture and local water supply management.
In January, Itajai, Brazil, experiences high humidity at 86%, setting the tone for a summer that maintains a consistently damp atmosphere. The humidity slightly dips to 83% in February but remains elevated throughout the season, hovering around 85% in the following months. Interestingly, as the year progresses into the winter months, humidity levels begin to decline, reaching a low of 79% in August. However, this gradual decrease is reversed as the year concludes, with humidity soaring back to 88% in December. Overall, the data paints a picture of Itajai's climate where high humidity is a persistent theme, particularly in the warmer months, fostering a lush and vibrant environment.
In January, Itajai experiences a staggering UV Index of 15, categorizing it as extreme, with a swift burn time of just 10 minutes. This trend of high UV exposure is consistent, as February follows closely with a UV Index of 14. Throughout the first half of the year, Itajai remains in the extreme or very high exposure categories, peaking again in October and November. By April, while the UV Index dips to 10, the burn time increases slightly to 15 minutes, hinting at a slight moderation. As summer transitions to winter, May and June bring more manageable levels, with the index dropping to high and moderate. Despite these variations, caution is necessary year-round, especially during peak months. For more insights, visit Itajai UV Index.
UV Risk Categories
In Itajai, Brazil, January greets visitors with a vibrant 242 hours of sunshine, setting the stage for an inviting summer atmosphere. As the months unfold, February and March bask in even more luminous days, featuring 292 and 299 hours of sunlight respectively, ideal for outdoor adventures and beach lounging. However, as summer transitions to autumn, the sunshine diminishes slightly, with April offering 279 hours before June dips to 220 hours—the least of the year. Interestingly, July and August rebound with 263 and 247 hours, showing a resilient spirit against the winter blues. November and December shine brightest, with 298 and a remarkable 323 hours respectively, closing the year on a sunny note. This trend underscores Itajai's reputation for a predominantly sunny climate, making it an attractive destination year-round.
In Itajaí, Brazil, the prospect of sunny weather in January stands at a modest 17%, making it one of the cloudiest months of the year. This low likelihood of sunshine is in sharp contrast to the following month, February, which boasts an impressive 49% chance, ushering in a season of brightness and warmth. As the year progresses, the chances of sunny days fluctuate, peaking in July at 55%, while the tail end of the year dips again, particularly in October, where the sun is sighted just 14% of the time. Overall, this trend highlights the seasonal variability in Itajaí, where the sun's embrace becomes increasingly likely as summer approaches, yet retreats significantly as the year draws to a close.
In January, Itajai, Brazil basks in an impressive 13 hours of daylight, marking the peak of summer. As the month transitions into February and March, daylight remains steady at 12 hours, allowing residents and visitors to enjoy extended outdoor activities. However, as autumn approaches in April, daylight diminishes to 11 hours, gradually tapering off to 10 hours from May to July. This period of shorter days heralds winter's arrival, before the light begins to rebound in August and September, with 11 hours returning to the schedule. By October, daylight returns to 12 hours, and the year closes with November and December once again offering 13 hours, creating a beautiful symmetry with the start of the year. This cyclical pattern highlights the consistent rhythm of nature in Itajai, resulting in an inviting atmosphere year-round.
In January, Itajai enjoys a gentle breeze with an average wind speed of 3.1 m/s (7 mph), marking one of the year's more favorable wind conditions. As the months progress, wind speeds tend to dip, reaching their lowest in March at 2.4 m/s (5 mph), before gradually picking up again. Notably, October to December each boast the same robust average of 3.3 m/s (7 mph), indicating a refreshing shift as the year draws to a close. Overall, January's mild winds set the tone for the month, blending seamlessly into a pattern of ebbing and flowing breezes that define Itajai's coastal charm throughout the year.
Weather in Itajai varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Itajai, focusing on differences in temperature, rainfall, humidity, and UV levels.
January and February display similar weather patterns, but there are notable differences. In January, temperatures range from a minimum of 19°C (66°F) to a maximum of 34°C (93°F), with an average temperature of 25°C (77°F). This month also sees a higher average precipitation of 197 mm (7.7 in) over 20 days, accompanied by a humidity level of 86%. In contrast, February has slightly cooler temperatures, with a minimum of 16°C (61°F), an average of 24°C (76°F), and the same maximum of 34°C (93°F). Precipitation decreases to 175 mm (6.9 in) over 19 days, resulting in a lower humidity of 83%. For more details on February weather, check out Itajai weather in February.
In comparing the weather conditions of January and March, January experiences a slightly warmer temperature range, with minimums of 19°C and maximums reaching up to 34°C. In contrast, March typically sees slightly cooler temperatures, with a minimum of 18°C and a maximum of 31°C. Precipitation also differs, as January has a higher total of 197 mm over 20 days, while March records 156 mm spread across 22 days, indicating that both months experience considerable rainfall but with January being more intense. Humidity levels remain fairly consistent, hovering around 86% in January and 85% in March. For more detailed information, you can check out Itajai weather in March.
When comparing the weather between January and April, it's clear that January is much warmer and wetter. In January, temperatures range from a minimum of 19°C (66°F) to a maximum of 34°C (93°F), with an average of 25°C (77°F). The month also sees substantial rainfall, with 197 mm (7.7 in) of precipitation over approximately 20 days and high humidity levels at 86%. In contrast, April offers a milder climate, featuring cooler temperatures ranging from 12°C (55°F) to 29°C (84°F), with an average of 21°C (71°F). Precipitation decreases to 94 mm (3.7 in) over about 15 days, with humidity remaining relatively stable at 85%. For more details, you can check Itajai weather in April.
In January, the weather is noticeably warmer, with temperatures ranging from a minimum of 19°C (66°F) to a maximum of 34°C (93°F), creating an average temperature of 25°C (77°F). This month is also quite wet, with 197 mm (7.7 in) of rainfall spread over 20 days, accompanied by high humidity levels of 86%. In contrast, May experiences cooler temperatures, with a minimum of 9°C (49°F) and a maximum of 29°C (84°F), averaging at 19°C (67°F). Precipitation in May is lower at 121 mm (4.8 in) over 14 days, while humidity remains consistent at 86%. For more details on the weather in this month, you can check Itajai weather in May.
In January, the weather is significantly warmer, with temperatures ranging from a minimum of 19°C (66°F) to a maximum of 34°C (93°F) and an average of 25°C (77°F). The month is marked by high humidity at 86% and considerable rainfall, receiving 197 mm (7.7 in) over approximately 20 days. In contrast, June experiences much cooler conditions, with temperatures starting at a minimum of 7°C (44°F), peaking at 26°C (80°F), and averaging around 17°C (64°F). Rainfall is notably reduced to 128 mm (5.1 in) over just 11 days, while humidity remains relatively stable at 85%. For more detailed information on weather patterns, you can check Itajai weather in June.
January and July present strikingly different weather patterns. In January, temperatures range from a minimum of 19°C (66°F) to a maximum of 34°C (93°F), with an average of 25°C (77°F). The month is characterized by high humidity at 86% and substantial rainfall, totaling 197 mm (7.7 in) over about 20 days. Conversely, July experiences much cooler conditions, with temperatures dropping significantly to a minimum of 4°C (40°F) and an average of 16°C (61°F), peaking at 27°C (80°F). Rainfall is minimal during this month, with only 49 mm (1.9 in) occurring over approximately 7 days, and humidity slightly lower at 80%. For more details, check out Itajai weather in July.
In January, the weather is characterized by warm temperatures, with a minimum of 19°C (66°F) and an average of 25°C (77°F), peaking at a scorching 34°C (93°F). This month experiences significant rainfall, totaling 197 mm (7.7 in) over 20 days, and a high humidity level of 86%. In contrast, August offers a much cooler climate, with temperatures ranging from a minimum of 6°C (43°F) to an average of 17°C (62°F), and a maximum of 27°C (80°F). Precipitation in August is notably lower, at 71 mm (2.8 in) across just 10 days, and humidity drops to 79%. For more details on the weather specifics, you can visit Itajai weather in August.
In January, the weather is generally hot and humid, with temperatures ranging from a minimum of 19°C (66°F) to a maximum of 34°C (93°F), averaging around 25°C (77°F). The month also sees significant rainfall, with 197 mm (7.7 inches) spread over 20 days, creating a humid environment at 86% humidity. In contrast, September experiences much cooler temperatures, with a minimum of 10°C (51°F) and a maximum of 26°C (79°F), leading to an average of 19°C (66°F). Precipitation is lower in September, totaling 109 mm (4.3 inches) over 13 days, and the humidity is slightly reduced at 82%. For a detailed overview of weather conditions, visit Itajai weather in September.
January and October present quite contrasting weather conditions. In January, the temperatures experience a range from a minimum of 19°C (66°F) to a maximum of 34°C (93°F), with an average of 25°C (77°F), creating a warm atmosphere. Additionally, January is marked by higher humidity at 86% and substantial rainfall, with 197 mm (7.7 in) spread over 20 days. In contrast, October sees cooler temperatures, with a minimum of 13°C (55°F) and a maximum of 30°C (87°F), averaging around 20°C (68°F). The month also has slightly lower humidity at 82% and less precipitation, totaling 149 mm (5.9 in) over 18 days. For more insights into October weather in Itajai, you can check Itajai weather in October.
In January, the weather is notably warmer, with temperatures ranging from a minimum of 19°C (66°F) to a maximum of 34°C (93°F), while November sees cooler temperatures, with a range from 13°C (56°F) to 30°C (86°F). Despite both months experiencing high humidity levels of 86%, January is significantly wetter, receiving 197 mm (7.7 in) of precipitation over 20 days compared to November's 123 mm (4.8 in) over 19 days. For more detailed information on this month, you can check Itajai weather in November.
In January, the weather in Itajai is generally warmer, with average temperatures ranging from a minimum of 19°C (66°F) to a maximum of 34°C (93°F), compared to December, where temperatures range from 14°C (58°F) to 31°C (88°F). Additionally, January experiences slightly higher precipitation, totaling 197 mm (7.7 in) over 20 days, while December sees 175 mm (6.9 in) over 21 days. Humidity levels are also marginally higher in January at 86% compared to 88% in December. For more details, you can check Itajai weather in December.
As January unfolds in Itajai, the weather presents a warm and humid atmosphere characterized by an average temperature that encourages outdoor activities but also demands careful preparation for the frequent rains. With high humidity levels and numerous rainy days, this month stands out from the drier months of the year, making it essential for visitors and locals alike to embrace both sunshine and showers. The average warmth, combined with substantial precipitation, creates a unique tropical experience that shapes the landscape and lifestyle in this vibrant city. For a deeper dive into the climatic variations throughout the year, visit Itajai Climate.