Last updated: August 21, 2025
In December, Ubatuba, Brazil welcomes the summer with vibrant weather characterized by a maximum temperature of 29°C (85°F) and an average of 23°C (74°F), creating a warm and inviting atmosphere. The warm days often give way to cooler evenings, with minimum temperatures dropping to 18°C (65°F). However, visitors should be prepared for frequent rainfall, as the region experiences about 180 mm (7.1 in) of precipitation over 17 days, contributing to the lush greenery that Ubatuba is known for. Humidity levels hover around 80%, adding a refreshing tropical feel to the coastal town, making it an ideal spot for nature lovers and beachgoers alike.
December in Ubatuba, Brazil, marks the transition into summer, bringing warm and inviting temperatures that entice both locals and tourists. With minimums around 18°C (65°F) and averages peaking at 23°C (74°F), the city begins to heat up as the year draws to a close. You can expect the mercury to reach a comfortable maximum of 29°C (85°F), making it perfect for beach outings and outdoor adventures. The gradual rise in temperatures since the cooler months of November reflects the typical Brazilian summer, creating a vibrant atmosphere for exploration and relaxation under the sun. As the festive season approaches, December's warm weather complements the lively spirit of Ubatuba, making it a delightful time to experience this coastal gem.
In December, Ubatuba experiences a significant precipitation amount of 180 mm (7.1 in) over approximately 17 days, marking a vibrant end to the year's wet season. This monthly total reflects a pattern of increasing rainfall as the year progresses, peaking in March with 227 mm (9.0 in). With December's rainfall contributing to a consistent trend of higher precipitation in the warmest months, the region remains lush and lively, showcasing the beautiful tropics that characterize Brazil's coast. The rainfall, while abundant, falls slightly short of November's totals, which saw 205 mm (8.1 in), suggesting the tail end of a robust rainy season that has enriched Ubatuba's lush landscapes throughout the year.
In Ubatuba, Brazil, December marks a transition as humidity begins to rise once again, reaching 80%. This resurgence is a notable shift from the drier months of October and September, when humidity dipped to 50% and 58%, respectively. Throughout the year, Ubatuba experiences consistently high humidity, peaking at 88% in the summer months of January and February. As we approach December, an upward trend ensues, indicating a return to the tropical climate that characterizes the region. The gradual decline from the peak humidity through the winter months illustrates Ubatuba’s rhythmic dance with moisture, setting the stage for the warm, humid conditions that lie ahead in the new year.
In Ubatuba, Brazil, December ushers in another month of intense sun exposure, with a UV Index peaking at 15, categorizing it as extreme. This trend of high UV levels has been consistent throughout the year, with January and February also recording the same daunting index. The burn time remains short at just 10 minutes, reminding sun-seekers to prioritize skin protection. As the year progresses, it's notable that individual indices dip slightly in the cooler months of June and July, yet they quickly rebound as summer approaches, particularly in the end-of-year months. With such powerful UV rays, ensuring proper precautions is essential for anyone enjoying the sun. For more information on UV levels and safety tips, visit Ubatuba UV Index.
UV Risk Categories
As December unfolds in Ubatuba, Brazil, the sun shines brighter than ever, offering an impressive 324 hours of glorious sunlight. This remarkable amount marks a peak as the year wraps up, surpassing previous months and contributing to an overall trend of increasing daylight hours through the latter half of the year. Following a consistent rise from the mid-spring months, where sunshine hours steadily climbed, December’s bright finale reinforces the region's allure as a tropical paradise. Travelers can bask in the warmth and brightness, making it the perfect time to explore Ubatuba's stunning beaches and vibrant landscapes.
As December approaches in Ubatuba, Brazil, the likelihood of sunny weather hovers around 46%, signaling a transition from the wetter months into the more favorable summer season. This marks a notable increase from the previous months, where the sun graced the skies with only 40% chance in November and dips to 23% in October. The upward trend continues from April's promising 57%, peaking during the mid-year months, suggesting that while December may not guarantee abundant sunshine, it holds a fair promise for those seeking delightful beach days. This steady rise offers a hopeful outlook for visitors and residents alike, eager to bask in the coastal warmth as the year draws to a close.
In Ubatuba, Brazil, the daylight duration exhibits a captivating rhythm throughout the year, peaking at 13 hours in both January and December. This vibrant coastal town experiences a gradual decline in daylight from November through April, where it dips to 11 hours in April. As the year progresses into the cooler months, daylight levels stabilize at 10 hours from May to July before gradually increasing again. By August, the days begin to lengthen, ultimately returning to 12 hours by October and reaching the yearly high of 13 hours in December once more. This cyclical pattern highlights Ubatuba’s unique position in the tropics, where daylight is abundant and consistent, allowing for an enchanting experience under the sun.
In Ubatuba, Brazil, December brings a gentle average wind speed of 3.1 m/s (7 mph), marking a slight decrease compared to the breezier months of October and August, which saw speeds peak at 4.9 m/s (11 mph) and 4.1 m/s (9 mph), respectively. As the year draws to a close, the wind patterns reflect a calming trend, transitioning from the vigor of early summer to the more temperate conditions characteristic of late autumn. This creates a pleasant atmosphere for both locals and visitors, inviting them to enjoy the lush coastal scenery and vibrant beach life, all while feeling the soft caress of the December breeze.
Weather in Ubatuba varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Ubatuba, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, the weather is characterized by a warm range with minimum temperatures around 18°C (65°F) and maximum temperatures reaching up to 29°C (85°F), accompanied by significant rainfall totaling 180 mm (7.1 in) across about 17 days. The humidity during this month hovers at 80%, making it feel quite tropical.
In contrast, January sees slightly warmer temperatures, with minimums of 21°C (70°F) and maximums peaking at 31°C (88°F). Precipitation decreases to 146 mm (5.7 in), occurring over 14 days, while humidity increases to 88%. This shift results in a warmer, more humid feel compared to December. For a detailed look at January weather, you can check Ubatuba weather in January.
December and February display distinct weather patterns, with February generally being warmer and slightly more humid. In December, temperatures range from a minimum of 18°C (65°F) to a maximum of 29°C (85°F), while February sees a higher average, with minimum temperatures of 21°C (70°F) and maximums reaching 31°C (88°F). Both months experience significant rainfall, but February has a bit more, with 212 mm (8.3 in) compared to December's 180 mm (7.1 in). Additionally, February's humidity is higher at 88%, making the air feel more sultry compared to December's 80%. For those interested in the specifics of February weather, more details can be found Ubatuba weather in February.
In December, the weather features a warm range of temperatures, with minimums around 18°C (65°F) and maximums reaching up to 29°C (85°F), averaging at 23°C (74°F). This month sees significant rainfall, with 180 mm (7.1 in) spread over 17 days, and humidity levels sitting at 80%. In contrast, March brings slightly higher temperatures, with minima at 20°C (69°F) and maxima peaking at 30°C (86°F), averaging 25°C (77°F). Rainfall increases to 227 mm (9.0 in) over 15 days, accompanied by a rise in humidity to 87%. For a more detailed look at March weather, visit Ubatuba weather in March.
In December, the weather tends to be quite warm, with average temperatures ranging from a minimum of 18°C (65°F) to a maximum of 29°C (85°F). This month receives substantial rainfall, recording about 180 mm (7.1 in) over approximately 17 days, and the humidity levels stand at 80%. In contrast, April experiences slightly warmer nights, with minimum temperatures of 19°C (66°F), while maintaining an average high of 29°C (84°F). Precipitation is lower in April at 134 mm (5.3 in) across 13 days, and humidity rises slightly to 84%. For more detailed information, you can visit Ubatuba weather in April.
In December, Ubatuba experiences a warm tropical climate, with temperatures ranging from a minimum of 18°C (65°F) to a maximum of 29°C (85°F) and an average of 23°C (74°F). The month is characterized by significant rainfall, totaling 180 mm (7.1 in) over approximately 17 days, coupled with humidity levels around 80%. In contrast, May presents slightly cooler weather, with temperatures ranging from a minimum of 16°C (60°F) to a maximum of 29°C (84°F) and an average of 21°C (71°F). Rainfall in May is lower, amounting to 119 mm (4.7 in) spread over about 12 days, and humidity remains relatively stable at 79%. For more details on the weather conditions in May, check out Ubatuba weather in May.
In December, the weather is generally warmer and more humid, with temperatures ranging from a minimum of 18°C (65°F) to a maximum of 29°C (85°F). This month experiences significant rainfall, with an average precipitation of 180 mm (7.1 in) over 17 days, resulting in a humidity level of 80%. In contrast, June offers slightly cooler temperatures, with a minimum of 16°C (62°F) and a maximum of 27°C (82°F). The precipitation is also lower at 112 mm (4.4 in), spread over 12 days, and the humidity is marginally less at 77%. For more detailed information, you can check Ubatuba weather in June.
December in Ubatuba is characterized by warmer temperatures, with a minimum of 18°C and an average high reaching up to 29°C. This month sees higher humidity levels at around 80% and considerable rainfall, averaging 180 mm over 17 days. In contrast, July experiences cooler and drier weather, with temperatures ranging from a minimum of 13°C to a maximum of 28°C. The precipitation is significantly lower at 87 mm, occurring over just 7 days, and the humidity is also lower at 72%. For more detailed weather insights, you can check out Ubatuba weather in July.
December and August in Ubatuba present distinct weather patterns. December enjoys slightly warmer temperatures, with averages ranging from a minimum of 18°C (65°F) to a maximum of 29°C (85°F), while August is cooler, with temperatures spanning from 15°C (59°F) to the same maximum of 29°C (84°F). Precipitation is more frequent in December, with 180 mm (7.1 in) falling over 17 days compared to August's 147 mm (5.8 in) across 12 days. Additionally, December experiences higher humidity levels at 80%, while August maintains a more comfortable humidity of 65%. For further details on August weather, visit Ubatuba weather in August.
In comparing the weather in December and September, December tends to be warmer and wetter. With an average temperature of 23°C (74°F), it features a maximum of 29°C (85°F), while September averages at 21°C (69°F) with a peak of 30°C (86°F). However, December experiences significantly higher precipitation, totaling 180 mm (7.1 in) over 17 days, compared to September's 132 mm (5.2 in) over just 13 days. Additionally, the humidity in December is notably higher at 80%, in contrast to the more comfortable 58% humidity in September. For more detailed insights, check out Ubatuba weather in September.
In comparing the weather of December and October, December experiences slightly warmer temperatures, with average highs reaching 29°C (85°F) compared to October's maximum of 30°C (86°F). However, October has a slightly lower average temperature, at 21°C (71°F), while December's average is 23°C (74°F). Precipitation levels are quite similar, with December receiving 180 mm (7.1 in) over 17 days, while October sees 186 mm (7.3 in) over 19 days. Notably, October has a much lower humidity level of 50%, in stark contrast to December’s higher humidity of 80%. For more detailed weather information, you can check Ubatuba weather in October.
In comparing the weather between November and December, we see a slight increase in temperatures as December boasts a minimum of 18°C (65°F) and an average of 23°C (74°F), compared to November's minimum of 17°C (63°F) and average of 21°C (71°F). However, December experiences slightly less precipitation, totaling 180 mm (7.1 in) over 17 rainy days, whereas November has 205 mm (8.1 in) across 18 days. Humidity is also higher in December at 80%, compared to November's 75%. For more detailed insights, you can check Ubatuba weather in November.
As December arrives in Ubatuba, the weather transforms into a warm and humid tropical paradise, inviting both adventurers and sun-seekers alike. With a maximum temperature reaching up to 29°C (85°F), the days are bright and perfect for outdoor activities, while the average temperatures hover around a comfortable 23°C (74°F). However, it's worth noting that this month experiences more rain than others, with about 17 days of precipitation contributing to a total of 180 mm (7.1 in), creating lush landscapes and vibrant surroundings. The high humidity of 80% adds to the tropical feel, reminding visitors of the engaging yet varied weather typical of this coastal locale. For a deeper insight into Ubatuba's year-round climate patterns, check out Ubatuba Climate.