Last updated: August 21, 2025
In December, Barra, Brazil, experiences a tropical climate, characterized by maximum temperatures reaching up to 40°C (104°F) and a comfortable average of 28°C (82°F). The month sees an average minimum temperature of 21°C (70°F), offering warmth day and night. While humidity hovers around 53%, it can amplify the heat, making for sultry afternoons. Rainfall is modest, with 90 mm (3.5 in) of precipitation likely spread across roughly 8 days, providing brief relief and enhancing the lush landscape. December's weather in Barra is a vibrant mix of heat and tropical charm, perfect for those seeking an adventurous getaway.
In December, Barra, Brazil, ushers in the summer season with vibrant warmth, showcasing a minimum temperature of 21°C (70°F) and peaking with a maximum of 40°C (104°F). With an average temperature hovering around 28°C (82°F), December sets the stage for balmy days and sultry nights, perfect for beachgoers and outdoor enthusiasts. Notably, this month maintains a trend of warmth, mirroring the comfortable averages seen in preceding months while pushing the maximums to new heights. As the year closes, residents and visitors alike can expect to bask in the tropical charm that defines Barra’s climate, making it an ideal escape for sun-seekers.
In Barra, Brazil, December marks a continuation of the wet season, with precipitation amounts reaching 90 mm (3.5 in) over approximately 8 days. This is slightly lower than the 92 mm recorded in November, indicating a consistent pattern of abundant rainfall that characterizes the late year. Unlike the drier months of May to September, which experience minimal rainfall, December’s precipitation reflects a return to the heavier rainfall typical from January to March. The presence of rain during December not only contributes to the lush local landscapes but also highlights the importance of these seasonal cycles for agriculture and water resources in the region.
In December, Barra, Brazil experiences a notable increase in humidity, rising to 53% as the year draws to a close. This uptick marks a contrast to the significantly lower humidity levels seen in the preceding months, particularly October and November, when the air felt quite dry at 43% and 40%, respectively. As the landscape shifts from the dry season, December hints at the return of moisture, signaling the onset of a more humid climate that sets the stage for the wetter months ahead. This gradual climb from the arid summer months emphasizes the region's dynamic weather patterns and highlights the seasonal transitions characteristic of Barra.
In December, Barra, Brazil, continues its streak of intense sunshine, with a UV Index of 15, positioning it firmly in the extreme exposure category. This means that, just like in the previous months from January through November, the risk of harm from unprotected sun exposure remains high, allowing for a burn time of only 10 minutes. Interestingly, while the UV Index slightly fluctuated throughout the year, the trend showcases that extreme levels of UV radiation are a consistent challenge during these peak summer months. It's vital for sun-seekers to stay vigilant and protect their skin accordingly. For more insights on UV levels, visit Barra UV Index.
UV Risk Categories
In Barra, Brazil, December basks in a delightful embrace of sunshine, offering 328 hours of radiant daylight. As the year winds down, this month's sun-soaked hours reflect a peak in a trend of increasing brightness that starts from the colder months. Following November's 320 hours, December's light signals a transition from the cooler, shorter days into the warm embrace of summer. With the new year just around the corner, the sun’s glow in December sets the stage for even more luminous days ahead in January, which boasts a robust 288 hours. This steady rise in sun hours during the year's final months invites both locals and visitors to revel in the vibrant warmth of Brazilian summer, making it the perfect time for outdoor adventures and beachside relaxation.
When considering the likelihood of sunny weather in Barra, Brazil, December presents a notable contrast to the preceding months. As the year nears its end, the chances of sunshine sharply decline, plummeting to just 11%—a significant drop from the more promising rates earlier in the year. This trend highlights a seasonal shift, where the better odds of sunny skies seen in July and August (73% and 79%, respectively) give way to much gloomier prospects. As the festive holiday season approaches, visitors should be prepared for overcast days rather than the sun-soaked experiences typical of Barra’s earlier months.
In Barra, Brazil, the rhythm of daylight duration showcases a consistent pattern throughout the year. From January to March, residents bask in a generous 12 hours of sunlight daily, ideal for outdoor activities. As the seasons shift in April, daylight begins to taper to 11 hours, maintaining this shorter span through the following months until August. However, as spring approaches in September, daylight revitalizes, returning to 12 hours for the remainder of the year, including the festive month of December. This seasonal fluctuation highlights Barra’s unique positioning near the equator, offering residents and visitors alike a bright and inviting atmosphere to enjoy their surroundings year-round.
As December arrives in Barra, Brazil, a subtle shift in the wind can be felt, with average wind speeds dropping to 2.0 m/s (4 mph). This marks a gentle decrease from the breezier months of September and October, where winds touched peaks of 3.6 m/s (8 mph) and 3.2 m/s (7 mph), respectively. Following a summer of increasing gusts, tapering off in November to 2.1 m/s (5 mph) signals the onset of a calmer season. The trend of gradually mellowing winds reflects the transition into the higher humidity and warmer temperatures of the Brazilian summer, inviting both locals and visitors to revel in the serene coastal ambiance.
Weather in Barra varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Barra, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, temperatures in Barra range from a minimum of 21°C (70°F) to a maximum of 40°C (104°F), with an average of 28°C (82°F). The month experiences approximately 90 mm (3.5 in) of precipitation over about 8 days, resulting in a relatively moderate humidity of 53%. In contrast, January sees slightly lower temperatures, with a minimum of 20°C (69°F) and a maximum of 38°C (100°F), while maintaining a similar average of 28°C (83°F). Precipitation decreases to 53 mm (2.1 in) over just 5 days, but humidity rises significantly to 81%. This increase in humidity during January can create a much more muggy atmosphere compared to the drier conditions of December. For more details on January’s climate, check out Barra weather in January.
In December, the weather typically sees warmer temperatures, with an average high of 40°C (104°F) and only moderate humidity at 53%. It experiences about 90 mm (3.5 inches) of precipitation over roughly 8 days. In contrast, February is marked by slightly cooler temperatures, with a maximum of 38°C (100°F) and a higher humidity level at 88%. Additionally, precipitation increases to 126 mm (4.9 inches) over 14 days, indicating a wetter month. For more details on February's climate, you can check Barra weather in February.
In December, temperatures in Barra typically range from a minimum of 21°C (70°F) to a maximum of 40°C (104°F), with an average temperature of 28°C (82°F). The month sees about 90 mm (3.5 in) of precipitation over approximately 8 days, with humidity levels around 53%. In contrast, March presents slightly cooler temperatures, with a minimum of 20°C (68°F) and a maximum of 37°C (99°F), averaging 27°C (81°F). This month experiences higher rainfall, totaling 121 mm (4.7 in) over 13 days, and significantly increased humidity at 91%. For more detailed insights into March weather, check out Barra weather in March.
In December, the weather tends to be warmer with temperatures ranging from a minimum of 21°C (70°F) to a maximum of 40°C (104°F) and an average of 28°C (82°F). Despite the higher temperatures, December experiences more rainfall, with about 90 mm (3.5 inches) over 8 days and humidity sitting at 53%. In contrast, April offers slightly cooler temperatures, with a minimum of 19°C (67°F) and a maximum of 36°C (98°F), averaging 27°C (81°F). The precipitation is also less in April, totaling 74 mm (2.9 inches) over 7 days, but the humidity rises significantly to 86%. For more detailed information, you can check Barra weather in April.
December weather is characterized by higher temperatures, with lows around 21°C (70°F) and highs reaching up to 40°C (104°F), making it considerably hotter than May. In contrast, May presents a slightly cooler climate, with minimum temperatures dropping to 17°C (64°F) and maximums around 37°C (99°F). While December experiences more rainfall, averaging 90 mm (3.5 in) over eight days, May is much drier, with only 8 mm (0.3 in) of precipitation occurring on just one day. Additionally, humidity is lower in December at 53%, compared to a relatively higher 73% in May. For more details about the weather conditions in May, you can refer to Barra weather in May.
December and June present contrasting weather patterns. In December, temperatures range from a minimum of 21°C (70°F) to a maximum of 40°C (104°F), with an average of 28°C (82°F), alongside significant rainfall totaling 90 mm (3.5 in) over 8 days. Humidity levels also hover around 53%, creating a warm and somewhat muggy atmosphere. In stark contrast, June offers milder temperatures, with a minimum of 16°C (62°F) and a maximum of 36°C (96°F), averaging 26°C (79°F). Notably, June sees negligible precipitation, with only 1 mm (0.0 in) recorded over the month and no rainy days, leading to a higher humidity level of 67%. For more detailed information on June weather, you can check Barra weather in June.
In comparing the weather between December and July, significant differences emerge in both temperature and precipitation. December boasts a much warmer climate with average temperatures reaching 28°C (82°F) and highs soaring up to 40°C (104°F), accompanied by 90 mm (3.5 in) of rain over about 8 days. Meanwhile, July experiences milder temperatures, with an average of 25°C (77°F) and maximums of 36°C (97°F), and it remains remarkably dry with just 1 mm (0.0 in) of precipitation throughout the month. Additionally, July has a slightly higher humidity level at 63%, compared to December's 53%. For more detailed insights about the weather in July, you can check this link: Barra weather in July.
When comparing the weather in December and August, December tends to be much warmer with temperatures ranging from a minimum of 21°C (70°F) to a maximum of 40°C (104°F), averaging around 28°C (82°F). This month also sees significant precipitation, with 90 mm (3.5 in) of rain over 8 days and a humidity level of 53%. In contrast, August is cooler, with temperatures from a minimum of 16°C (61°F) to a maximum of 37°C (99°F), averaging 26°C (80°F). Notably, August is dry with no recorded precipitation and a slightly higher humidity of 57%. For more information on August weather, you can visit Barra weather in August.
December and September exhibit striking similarities in temperature, with both months experiencing average highs reaching up to 40°C (104°F). However, December tends to be slightly warmer overall, with average temperatures around 28°C (82°F) compared to September’s 28°C (83°F). A notable difference lies in precipitation; December sees around 90 mm (3.5 in) of rain over eight days, while September remains mostly dry with just 1 mm (0.0 in) and no rainy days. Humidity levels are also quite comparable, with December at 53% and September slightly lower at 51%. For more details on September weather in Barra, you can visit Barra weather in September.
In comparing the weather patterns of December and October, both months feature similar minimum and maximum temperatures, with December averaging 28°C (82°F) and October slightly warmer at 30°C (86°F). However, December experiences significantly more precipitation, totaling 90 mm (3.5 in) over 8 days, compared to just 23 mm (0.9 in) across 3 days in October. Additionally, the humidity in December is higher at 53%, while October maintains a lower humidity level of 43%. For more detailed insights into October's climate, you can visit Barra weather in October.
In December, the weather remains warm with minimum temperatures of 21°C (70°F) and an average of 28°C (82°F), slightly higher than November's consistent readings of a minimum of 20°C (68°F) and the same average temperature. While both months experience similar high temperatures, with December peaking at 40°C (104°F) and November at 39°C (103°F), December has a marginally higher humidity level of 53% compared to November's 40%. Precipitation is nearly equivalent in both months, with December receiving 90 mm (3.5 in) over 8 days, just slightly less than November's 92 mm (3.6 in) over 9 days. For a closer look at November's weather fluctuations, refer to this link: Barra weather in November.
In December, Barra experiences a delightful shift in weather, marked by warm temperatures and moderately high humidity. With averages around 28°C and maximums reaching up to 40°C, it's a month that beckons beachgoers and sun-seekers. Unlike the cooler months, December brings about a noticeable increase in rainfall, averaging 90 mm spread over 8 days, offering a refreshing contrast to the arid conditions earlier in the year. This blend of warmth and occasional rain creates a lush and vibrant atmosphere, making it a unique time to explore the natural beauty of the region. For a deeper look at the seasonal variations, check out Barra Climate.