Last updated: August 21, 2025
In December, Barreirinhas, Brazil experiences a warm tropical climate, with maximum temperatures reaching up to 34°C (94°F) and an average of 28°C (83°F), providing perfect conditions for beachgoers and nature enthusiasts alike. Nighttime temperatures cool to a pleasant minimum of 23°C (74°F), ideal for evening strolls. However, this month also sees approximately 59 mm (2.3 in) of rainfall spread over 13 days, contributing to the region's lush landscapes. With humidity levels at 78%, the air remains comfortably warm, making December a vibrant and lively time to explore the stunning beauty of Barreirinhas.
In December, Barreirinhas, Brazil, welcomes warm temperatures that reflect the region's tropical charm. The month starts with a minimum temperature of 23°C (74°F), complemented by a comfortable average of 28°C (83°F), and peaks at a summery maximum of 34°C (94°F). This trend of high temperatures is characteristic of the region, with December mirroring the warmth found in the preceding months, moving from November's own cap of 34°C. As the year draws to a close, visitors can expect pleasantly hot days, making it an ideal time to soak in the sun and explore the natural beauty of the stunning Lençóis Maranhenses National Park. Overall, the consistent warmth throughout the year signifies a vibrant climate that invites exploration and adventure.
In Barreirinhas, Brazil, December marks a notable transition in precipitation patterns, with 59 mm (2.3 in) of rain falling over 13 days. While this month's rainfall is considerably lower than the peak months of March and April, it still signifies the tail end of the rainy season, contrasting sharply with the dry spells of mid-year, such as July and August, which see minimal rainfall. The increase from November’s modest 35 mm (1.4 in) hints at a gradual buildup towards the wetter months ahead. As the year concludes, December's mild precipitation allows for a lush landscape, ideal for exploration, yet reminds visitors of the vibrant, life-giving rhythms of the region’s climate.
In Barreirinhas, Brazil, December marks a transition in humidity as it settles at a comfortable 78%, down from the peak averages seen earlier in the year. Following the high humidity levels of 90% in the first three months and a notable 92% in April, the region begins to dry out, with June experiencing the lowest humidity of 79%. The months that follow see a steady decline, hitting a low of 51% in September, before gradually increasing again in the final months of the year. This seasonal shift illustrates a clear trend—from the oppressive moisture of the wet months to a more moderate atmosphere in the summer, setting the stage for balmy December days.
December in Barreirinhas, Brazil, marks the continuation of an extreme UV Index trend that has dominated the region throughout the year. With a UV Index of 13, the exposure remains in the extreme category, requiring individuals to be vigilant about sun protection to avoid sunburn within just 10 minutes. Notably, while December's index mirrors that of the preceding months, a slight decline from March's peak of 16 indicates a gradual transition as the year winds down. This consistency underscores the importance of staying informed about UV levels, making resources like Barreirinhas UV Index essential for safe outdoor enjoyment during the holiday season.
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As December rolls into Barreirinhas, Brazil, the sun continues to shine brightly, with 320 hours of sunlight illuminating the landscape. This month showcases a slight dip from the peak sunshine experienced in October but remains robust compared to the previous months. The trend shows a gradual increase in sunshine hours starting from the cold months, culminating in the sunniest periods from mid-year onwards. Notably, the sunshine in December sustains the warmth of summer while hinting at the abundant light that characterizes the region throughout the year. With such favorable weather, it's no wonder Barreirinhas draws visitors eager to explore its stunning natural beauty!
In Barreirinhas, Brazil, the likelihood of sunny weather in December showcases interesting trends when compared to the surrounding months. With a 29% chance of sunshine, December sits comfortably in the middle of the year, offering more opportunities for sun than the earlier months of January through March, which struggle with lower percentages around 18% to 14%. As the year progresses, the chances of sunny days generally increase, peaking in the drier months of July through September, where the probability reaches a striking 58% to 66%. However, December's 29% indicates that while it may not be the sunniest month, it still offers a welcome respite from the gloom of earlier months, striking a charming balance as the year comes to a close.
In Barreirinhas, Brazil, December marks a continuation of the delightful consistency in daylight hours experienced throughout the year. With 12 hours of sunlight, this month stands aligned with the sun-drenched periods of January, February, March, April, August, September, October, and November. The summer months reflect a beautiful stability in daylight, aside from the slight decrease to 11 hours seen in May through July. This trend showcases a remarkable equilibrium in Barreirinhas' climate, making it an inviting destination for sun-seekers who wish to bask in the glow of the Brazilian landscape during this enchanting month.
As December unfolds in Barreirinhas, Brazil, the winds pick up slightly, averaging 4.8 m/s (11 mph), a notable increase compared to the calmest months of the year. This uptick in wind speed continues the trend seen from September onward, where breezes began to strengthen, reaching their peak before the end of the year. The December winds weave through the stunning landscapes, adding a refreshing vigor to the air, perfectly complementing the warm, tropical climate. This invigorating breeze not only enhances the beauty of the breathtaking dunes but also sets the stage for thrilling outdoor adventures in this enchanting region.
Weather in Barreirinhas varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Barreirinhas, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January present notable differences in weather patterns. In December, the temperatures range from a minimum of 23°C (74°F) to a maximum of 34°C (94°F), with an average of 28°C (83°F). The month sees 59 mm (2.3 in) of precipitation over 13 days, accompanied by a humidity level of 78%. In contrast, January is slightly cooler with an average temperature of 27°C (81°F) and a maximum of 33°C (91°F), while still maintaining a minimum of 23°C (74°F). However, January experiences significantly increased rainfall, with 135 mm (5.3 in) falling over 22 days and a higher humidity level of 89%. For a more detailed look at January weather specifics, you can visit Barreirinhas weather in January.
In comparing the weather of December and February, both months maintain similar minimum temperatures around 23°C (73-74°F), but February tends to be slightly cooler on average, with a maximum temperature of 32°C (91°F) compared to December's 34°C (94°F). Notably, February experiences significantly more precipitation, totaling 302 mm (11.9 in) over 27 days, while December has only 59 mm (2.3 in) across 13 days. Additionally, humidity levels rise in February to 90%, compared to December's 78%, resulting in a noticeably wetter and more humid atmosphere. For a more detailed understanding of February's climate, check out Barreirinhas weather in February.
In December, the weather in Barreirinhas is characterized by warm temperatures, with a minimum of 23°C (74°F), an average of 28°C (83°F), and a maximum of 34°C (94°F). The month experiences moderate precipitation, totaling 59 mm (2.3 in) over approximately 13 days, and humidity levels are around 78%. In contrast, March sees a slightly cooler average temperature of 27°C (80°F), but with increased humidity at 90%. The rainfall in March is significantly higher, reaching 349 mm (13.7 in) over 30 days, making it one of the wetter months of the year. For more details on the weather in March, you can visit Barreirinhas weather in March.
When comparing the weather in December and April, we observe notable differences in temperature and precipitation. December offers warm conditions with temperatures ranging from a minimum of 23°C (74°F) to a maximum of 34°C (94°F), along with an average of 28°C (83°F). The month sees relatively lower precipitation levels of 59 mm (2.3 inches) over 13 days and a humidity of 78%. In contrast, April experiences slightly cooler temperatures, with a range from 22°C (73°F) to 32°C (91°F) and an average temperature of 27°C (81°F). However, April is characterized by a significant increase in rainfall, recording 328 mm (12.9 inches) over 28 days, leading to higher humidity levels of 92%. For more detailed information about the weather conditions in April, you can check out Barreirinhas weather in April.
In comparing the weather between December and May, we see some notable differences. December typically boasts warmer temperatures, with averages around 28°C (83°F) and maximums reaching up to 34°C (94°F). In contrast, May's weather is slightly cooler, featuring an average temperature of 27°C (81°F) and a maximum of 32°C (91°F). However, May experiences significantly more rain, with 236 mm (9.3 in) of precipitation over 22 days, while December only sees 59 mm (2.3 in) across 13 days. Furthermore, May's humidity is higher at 89%, compared to December's 78%. For more details, check out the Barreirinhas weather in May.
In December, the weather boasts slightly higher temperatures, with averages reaching 28°C (83°F) and maximums climbing to 34°C (94°F). This month experiences around 59 mm (2.3 in) of precipitation over 13 days, while humidity sits at 78%. In contrast, June presents a slightly cooler climate, with average temperatures around 27°C (82°F) and maximums peaking at 32°C (90°F). Despite having a bit more rainfall, totaling 70 mm (2.8 in) across 12 days, the humidity remains comparable at 79%. For detailed insights into weather conditions, check out Barreirinhas weather in June.
In December, the weather in Barreirinhas is typically warmer, with average temperatures ranging from a minimum of 23°C (74°F) to a maximum of 34°C (94°F), compared to July's range of 22°C (72°F) to 33°C (92°F). December also sees higher humidity levels at 78%, making the heat feel more intense, while July has a cooler and drier average humidity of 64%. Additionally, December experiences more precipitation, totaling 59 mm (2.3 in) over 13 days, compared to July's 53 mm (2.1 in) over just 8 days. For more specific insights, you can check Barreirinhas weather in July.
In December, the weather is generally warmer and more humid compared to August. The average temperature in December hovers around 28°C (83°F), with a maximum reaching up to 34°C (94°F), whereas August has a similar average but can peak at a higher maximum of 35°C (95°F). However, December sees significantly more rainfall, with an average precipitation of 59 mm (2.3 inches) over 13 days, while August only experiences about 11 mm (0.4 inches) of rain over just 2 days. The humidity level is also notably higher in December at 78%, compared to 55% in August, making December feel more tropical. For more information on Barreirinhas weather in August, visit Barreirinhas weather in August.
In comparing the weather of December and September, both months exhibit similar minimum and average temperatures, consistently around 23°C (74°F) and 28°C (83°F) respectively. However, December tends to be slightly warmer, with a maximum temperature reaching up to 34°C (94°F) compared to September's peak of 35°C (95°F). Notably, September experiences significantly lower precipitation, with just 6 mm (0.2 in) across 0 days, while December sees much more rain at 59 mm (2.3 in) over 13 days, resulting in a much higher humidity level of 78% compared to September's 51%. For more detailed information, you can visit Barreirinhas weather in September.
In comparing the weather between December and October, we notice some key differences. December experiences slightly lower minimum temperatures, averaging 23°C (74°F) compared to October's 24°C (76°F). Both months share the same average temperature of 28°C (83°F), but October can reach a higher maximum of 35°C (96°F) versus December's maximum of 34°C (94°F). In terms of precipitation, December is much wetter with 59 mm (2.3 in) spread over 13 days, while October only sees 11 mm (0.4 in) across 3 days, resulting in a much drier climate. Additionally, December's humidity at 78% is significantly higher than October's 53%, making October feel more comfortable overall. For more detailed insights on October weather, you can check this link: Barreirinhas weather in October.
December weather shows a slight increase in humidity, averaging 78% compared to November's 60%. While both months maintain the same average temperature of 28°C (83°F), December experiences a slightly broader temperature range, with a minimum of 23°C (74°F) and a maximum of 34°C (94°F). In terms of precipitation, December is noticeably wetter, with 59 mm (2.3 in) falling over 13 days, compared to November's 35 mm (1.4 in) over 8 days. For more details, you can check out Barreirinhas weather in November.
In December, Barreirinhas experiences a vibrant atmosphere marked by typically warm temperatures and significant humidity, setting it apart from other months of the year. With daily highs touching 34°C (94°F) and an average of 28°C (83°F), visitors can expect a lush and inviting climate, perfect for exploring the region's stunning landscapes. However, don't forget your umbrella; December sees increased rainfall, with precipitation occurring on about 13 days of the month, adding a refreshing touch to the warm tropical environment. This transition into the rainy season brings about a unique charm, making it a distinctive time to visit. For more detailed insights, check out Barreirinhas Climate.