Last updated: August 21, 2025
In December, Itajaí, Brazil, experiences a warm and humid climate, with maximum temperatures soaring to 31°C (88°F) and a comfortable average of 23°C (74°F). The minimum temperature dips to a mild 14°C (58°F), making it a pleasant time for outdoor activities. However, prepare for frequent rain, as the region records 175 mm (6.9 in) of precipitation over approximately 21 days. With humidity levels reaching an average of 88%, the month embodies the tropical allure of summer, inviting visitors to enjoy the vibrant coastal atmosphere despite the occasional downpour.
In Itajai, Brazil, December marks the arrival of warmer temperatures, heralding the approach of summer. With nighttime lows around 14°C (58°F), mornings are pleasantly cool, while daytime highs can soar to 31°C (88°F), creating a vibrant contrast. The average temperature settles comfortably at 23°C (74°F), providing an inviting climate for outdoor enthusiasts and sun-seekers alike. This trend of increasing warmth, building from the milder months preceding December, underscores the region's transition into a lively season marked by sunny days and opportunities for both relaxation and adventure along its beautiful coastline.
In December, Itajaí experiences a notable uptick in precipitation, matching February’s average with 175 mm (6.9 in) of rainfall over 21 days of the month. This increase marks a transitional phase as the city shifts from the drier winter months into the wetter summer season. Remarkably, December sees a return to frequent rain, following a pattern established earlier in the year, where months such as January and February also reported heavy rainfall. The heightened precipitation in December not only sets the stage for lush landscapes but also reflects the climatic rhythm of the region, as it prepares for the more humid months ahead. This ideal blend of warm days and wet conditions nurtures both the natural beauty and agricultural vitality that characterize Itajaí.
In December, humidity in Itajai, Brazil, rises to a notable 88%, marking the month as one of the most humid of the year. This uptick continues a trend observed since the onset of the year, where humidity levels consistently hover around the mid-80s from January to November. Notably, as the year transitions into its final month, there's a marked increase, with December presenting a peak in humidity compared to previous months. This seasonal shift reflects the region's tropical climate, where humidity remains a defining characteristic, especially as the summer months approach. Overall, the moisture-laden air contributes to Itajai's lush landscapes and vibrant ecosystems, making it a unique tropical haven at year’s end.
In December, Itajai, Brazil, experiences an intense UV Index of 15, categorized as extreme, which means a brief burn time of just 10 minutes for unprotected skin. This peaks the trend observed throughout the year, where the UV Index remains consistently high from October through February, often reaching extreme levels. The summer months show a striking similarity, with January and February also marking high UV exposure, emphasizing the importance of sun protection during these times. As the weather heats up, precautions are essential to prevent harmful UV damage. For more information on daily UV levels, visit Itajai UV Index.
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December in Itajaí, Brazil, boasts a radiant average of 323 hours of sunshine, making it the sunniest month of the year. As the year draws to a close, the warmth of the sun reaches its peak, contrasting vividly with the cooler, cloudier days of June, which offers only 220 hours of sunlight. Notably, there’s a significant upward trend from November’s 298 hours, suggesting that the region’s transition into summer brings not only warmth but also an abundance of sunny days. This sunny December makes for an inviting backdrop for outdoor festivities and beach goers, encapsulating the essence of Brazilian summer bliss.
In December, Itajai, Brazil experiences a 36% chance of sunny weather, marking a notable uptick as the year wraps up. This percentage shows a shift from the dimmer autumn months, where November offered just 27% sunshine. As the region transitions from spring to summer, there is an observable trend of increasing sunny days, peaking in July with a 55% chance of sun. While December may not boast the highest likelihood of sunshine compared to mid-year, it still provides a promising outlook for beachgoers and outdoor enthusiasts eager to enjoy the warm coastal vibes before the summer season fully takes hold.
In Itajai, Brazil, the daylight duration follows a rhythmic pattern throughout the year, with December welcoming 13 hours of sunlight, a refreshing peak that reflects the pleasant, warm climate of the summer season. As the year progresses from January's equally bright 13 hours, daylight begins to gradually recede, hitting its low in May, June, and July with only 10 hours each day. However, as the year turns back towards December, the days start lengthening again. The transition is noteworthy, as April and October see a balance of 11 hours to 12 hours, mirroring the shift from longer to shorter days and back again, encapsulating the unique interplay of the tropics. The overall trend highlights the beautiful solar dance that characterizes life in Itajai, where residents and visitors alike can bask in extended daylight, especially during the end-of-year festivities.
As December arrives in Itajaí, Brazil, the coastal winds stir with a refreshing vigor, reaching an average speed of 3.3 m/s (7 mph). This marks a notable trend compared to the preceding months, where wind speeds fluctuated around 2.4 to 3.1 m/s. With a steady breeze that mirrors the increasing winds of November and October, December provides an invigorating atmosphere for both locals and visitors. This month’s consistent blowing winds not only enhance the region's charm but also signal the onset of summer activities along the vibrant coastline, making it an ideal time to embrace the great outdoors.
Weather in Itajai varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Itajai, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January showcase a gradual increase in temperatures, with January experiencing a minimum of 19°C (66°F) compared to December's 14°C (58°F). The average temperature in January rises to 25°C (77°F), reaching a maximum of 34°C (93°F), while December's average sits at 23°C (74°F), peaking at 31°C (88°F). Both months are relatively wet, with December receiving 175 mm (6.9 in) of precipitation over 21 days and January seeing a slight uptick to 197 mm (7.7 in) over 20 days. Humidity is also marginally lower in January at 86%, compared to 88% in December, creating a subtly more comfortable atmosphere. For more details, check out Itajai weather in January.
In December, temperatures in Itajai range from a mild 14°C (58°F) to a warm 31°C (88°F), with an average of 23°C (74°F). The month is characterized by high humidity at 88% and considerable rainfall, with precipitation occurring on 21 days totaling 175 mm (6.9 in). In contrast, February experiences slightly warmer conditions, with minimum temperatures of 16°C (61°F) and maximums reaching up to 34°C (93°F), while the average temperature is 24°C (76°F). Despite the similar total precipitation of 175 mm (6.9 in), February sees rain over fewer days (19), and the humidity drops to a more comfortable 83%. For more detailed information on the weather in February, you can check Itajai weather in February.
In December, the weather features a warmer average temperature of 23°C (74°F), with daytime highs peaking at 31°C (88°F). The month is marked by significant rainfall, totaling 175 mm (6.9 in) over 21 days, coupled with high humidity at 88%. In contrast, March experiences slightly warmer nights with a minimum temperature of 18°C (64°F) and maintains the same maximum of 31°C (88°F) as December. Precipitation decreases to 156 mm (6.1 in), occurring over 22 days, while humidity levels are also a bit lower at 85%. For more detailed insights on weather conditions, you can refer to Itajai weather in March.
In December, the weather is generally warmer and more humid, with average temperatures ranging from a minimum of 14°C (58°F) to a maximum of 31°C (88°F). This month also experiences significant rainfall, totaling 175 mm (6.9 in) over 21 days, contributing to a humidity level of 88%. In contrast, April is slightly cooler, with temperatures fluctuating between 12°C (55°F) and 29°C (84°F), and less precipitation at 94 mm (3.7 in) over 15 days, resulting in a lower humidity of 85%. For more detailed information, you can check out Itajai weather in April.
December and May exhibit notable differences in weather conditions. December is characterized by higher temperatures, with a minimum of 14°C (58°F) and an average of 23°C (74°F), peaking at a maximum of 31°C (88°F). Conversely, May features cooler temperatures, ranging from a minimum of 9°C (49°F) to an average of 19°C (67°F), and a maximum of 29°C (84°F). In terms of precipitation, December experiences more rainfall, totaling 175 mm (6.9 in) over 21 days, while May sees less at 121 mm (4.8 in) over just 14 days. Humidity levels are also slightly lower in May at 86%, compared to December’s 88%. For more details, you can check Itajai weather in May.
December and June exhibit distinct weather patterns, reflecting the contrasts of late spring and early summer in the region. In December, temperatures range from a minimum of 14°C (58°F) to a maximum of 31°C (88°F), with an average of 23°C (74°F). The month also experiences substantial precipitation of 175 mm (6.9 in) over 21 days, contributing to a high humidity level of 88%. In contrast, June presents cooler conditions, with temperatures fluctuating between a minimum of 7°C (44°F) and a maximum of 26°C (80°F) and an average of 17°C (64°F). The month has lower precipitation at 128 mm (5.1 in), spread over just 11 days, and a slightly lower humidity of 85%. For more detailed insights on June weather in Itajaí, visit Itajai weather in June.
When comparing the weather in December and July, December offers a warmer climate with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 31°C (88°F), boasting an average of 23°C (74°F). In contrast, July experiences cooler conditions, with temperatures dipping to a minimum of 4°C (40°F) and reaching a maximum of 27°C (80°F), averaging around 16°C (61°F). Additionally, December is significantly wetter, receiving 175 mm (6.9 in) of rainfall over 21 days, while July has much lighter precipitation of 49 mm (1.9 in) over just 7 days. The humidity is slightly higher in December at 88%, compared to 80% in July. For more detailed insights, visit Itajai weather in July.
In December, temperatures in Itajai are significantly warmer, with a minimum of 14°C (58°F) and an average of 23°C (74°F), peaking at 31°C (88°F). The month is also marked by high humidity at 88%, and frequent rainfall, totaling 175 mm (6.9 in) over 21 days. In contrast, August offers a 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). The precipitation is much lighter, at 71 mm (2.8 in) over just 10 days, and humidity is lower at 79%. For those curious about specific weather patterns, you can find more information here: Itajai weather in August.
In December, the weather tends to be warmer and more humid compared to September. While December boasts an average temperature of 23°C (74°F) with maximum highs reaching 31°C (88°F), September sees a cooler average of 19°C (66°F) and a maximum of 26°C (79°F). Additionally, December experiences more precipitation, accumulating 175 mm (6.9 in) over 21 days, as opposed to September's 109 mm (4.3 in) across just 13 days. The increased humidity in December, at 88%, contrasts slightly with September's humidity level of 82%. For a detailed look at September's weather, you can check Itajai weather in September.
December weather features slightly warmer temperatures, with a minimum of 14°C (58°F), an average of 23°C (74°F), and a maximum of 31°C (88°F), compared to October, which has a minimum of 13°C (55°F), an average of 20°C (68°F), and a maximum of 30°C (87°F). Precipitation is higher in December, totaling 175 mm (6.9 in) over 21 days, while October sees 149 mm (5.9 in) across 18 days. Additionally, December exhibits increased humidity levels at 88%, compared to 82% in October. For more detailed insights, you can check Itajai weather in October.
In comparing the weather of December and November, December tends to be slightly warmer with an average temperature of 23°C (74°F) compared to November's 21°C (70°F). The maximum temperatures also reflect this trend, reaching 31°C (88°F) in December, while November peaks at 30°C (86°F). Additionally, December experiences more precipitation, totaling 175 mm (6.9 in) over 21 days, compared to November's 123 mm (4.8 in) across 19 days. Humidity levels are similar, with December at 88% and November at 86%. For more detailed information about November weather, visit Itajai weather in November.
As December unfolds in Itajai, the weather showcases its unique charm compared to other months. The warmth is palpable, with average temperatures rising, inviting residents and visitors to bask in the tropical atmosphere. However, this month also brings increased humidity and frequent precipitation, leading to over two-thirds of the days seeing rain. This blend of warm temperatures, high humidity, and rainy spells sets December apart as a time of vibrant summer energy, perfect for those seeking to experience the lush beauty of this Brazilian coastal gem. For a deeper dive into what to expect throughout the year, check out Itajai Climate.