Last updated: August 21, 2025
Itacoatiara, Brazil, experiences a captivating December climate characterized by a maximum temperature reaching 34°C (94°F) and a soothing average of 27°C (81°F). As the month unfolds, the weather often presents a minimum of 23°C (73°F), perfect for those seeking warmth amid the festive season. However, visitors should be prepared for persistent rainfall, with 335 mm (13.2 in) of precipitation spread over 27 rainy days, contributing to the region’s lush landscapes. Coupled with an 85% humidity level, the ambiance is both tropical and vibrant, making Itacoatiara a unique destination during this time of year.
In Itacoatiara, Brazil, December marks a transition into the summer heat, with temperatures continuing to radiate warmth. During this month, the minimum temperature settles at a mild 23°C (73°F), providing a comfortable start to the day. The average temperature holds steady at 27°C (81°F), reflecting the consistent tropical climate that characterizes the region. As the sun reaches its zenith, maximum temperatures peak at around 34°C (94°F), inviting both locals and visitors to enjoy the vibrant outdoor activities and stunning natural scenery. This pattern of warmth is a charming prelude to the sweltering months of January and February, where temperatures tend to rise further, emphasizing Itacoatiara's allure as a sun-soaked destination.
In December, Itacoatiara experiences a noteworthy increase in precipitation, with 335 mm (13.2 in) of rainfall over 27 days. This marks a significant uptick compared to the preceding months, particularly following the relatively drier period of July and August, which saw only 78 mm (3.1 in) and 59 mm (2.3 in) respectively. The trend of rising precipitation continues from November's 245 mm (9.6 in), highlighting December as one of the wettest months of the year. With the rainy season in full swing, these patterns are indicative of the region's tropical climate, where moisture-laden winds contribute to the heavy rainfall, setting the stage for lush landscapes and vibrant ecosystems.
In Itacoatiara, Brazil, December marks a significant transition in humidity, with levels peaking at 85%. This comes after a dramatic drop in the preceding months, where humidity levels plummet to an annual low of 32% in October, followed by a slight increase in November. The pattern throughout the year reveals a notable trend: humidity is typically high during the early months, reaching its peak in the wet season from May to April. As the year progresses toward the dry months, the humidity takes a sharp dive, highlighting the stark contrast between the lush, humid climate of the wet season and the drier conditions that prevail later in the year. December's return to elevated humidity serves as a precursor to the moisture-laden months that follow, reconnecting the region with its vibrant tropical essence.
In December, Itacoatiara, Brazil, experiences a UV Index of 13, categorized as extreme with a burning time of just 10 minutes. As the year progresses, a notable trend emerges— the UV Index remains consistently high throughout the months, peaking at 16 from January to April. Even in the colder months, UV levels only slightly dip, reflecting the region's steady exposure to intense sunlight. This pattern emphasizes the importance of sun protection year-round, especially for those who enjoy outdoor activities. For detailed information about the UV Index in Itacoatiara, visit Itacoatiara UV Index.
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December in Itacoatiara, Brazil, brings a delightful blend of sunshine as the year winds down, showcasing 234 hours of sunlight. This month reflects a slight dip from the sunniest stretch of the year, which peaks in July and August with an impressive 328 hours each, but still stands out as a bright close to the year. Following the consistent increase in sunshine hours from June onwards, December maintains a healthy glow, inviting residents and visitors alike to soak up the rays before the rains of January. With hours of sunlight gradually tapering off from the summer highs, December offers a perfect opportunity to enjoy the beach and the vibrant local culture under the warm Brazilian sun.
When considering the likelihood of sunny weather in December in Itacoatiara, Brazil, it's notable that this month presents one of the lowest chances for sunshine at only 8%. This trend marks a significant decline from the sunnier months of mid-year, such as July and August, where the sun shines around 45% to 44% of the time. As we move through the year, particularly from May’s 23% to November’s 15%, the diminishing sunlight paints a clearer picture: December, with its 8% chance, seems to embrace the cloudier side of Brazil's tropical climate, making it a period less likely to bask in bright, sunny days.
In Itacoatiara, Brazil, the daylight duration boasts an intriguing consistency throughout the year. From January to April, residents and visitors enjoy a steady 12 hours of daylight, creating perfect conditions for outdoor activities and exploration. As the months transition into May through August, the daylight slightly diminishes to 11 hours, offering a gentler rhythm as the winter months approach. However, this subtle dip in daylight is short-lived, as September ushers in a return to 12 hours, continuing through November and culminating in December. This consistent daylight pattern not only enhances the tropical charm of Itacoatiara but also reflects the region's equatorial positioning, ensuring that sun-soaked days are a defining feature of life in this vibrant locale year-round.
In Itacoatiara, Brazil, the December wind brings a gentle breeze with an average speed of 1.5 m/s (3 mph), marking a subtle decline compared to the earlier months of the year. As the year progresses, the wind speed shows a slight shift; August and October stand out as the windiest months, both reaching 1.9 m/s (4 mph), while the lull of April and May offers the calmest conditions, also at 1.5 m/s. Overall, December ties with late spring's quiet months, creating a serene atmosphere as the year draws to a close, inviting residents and visitors alike to embrace the tranquility of Itacoatiara's coastal charm.
Weather in Itacoatiara varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Itacoatiara, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in December and January, both months experience warm temperatures, with January slightly cooler overall. In December, temperatures range from a minimum of 23°C (73°F) to a maximum of 34°C (94°F), while January sees temperatures ranging from 22°C (73°F) to 33°C (92°F). December is also characterized by higher precipitation, with 335 mm (13.2 in) over 27 days, compared to January’s 267 mm (10.5 in) across 23 days. Humidity remains fairly consistent, with December at 85% and January slightly higher at 86%. For more detailed information, you can check Itacoatiara weather in January.
December and February in Itacoatiara exhibit similar warm temperatures, with both months averaging around 27°C (81°F). However, December experiences slightly higher maximum temperatures of up to 34°C (94°F) compared to February's 32°C (91°F). Precipitation is notably higher in December, with 335 mm (13.2 in) falling over 27 days, while February sees a reduction to 297 mm (11.7 in) across 24 days. Additionally, humidity levels are higher in December at 85%, whereas February's humidity dips to 79%. For more detailed information, you can check Itacoatiara weather in February.
In December, the weather is marked by higher maximum temperatures, reaching up to 34°C (94°F), alongside significant rainfall, totaling 335 mm (13.2 in) over 27 days and high humidity at 85%. In contrast, March experiences slightly cooler conditions with a maximum temperature of 33°C (93°F) and a marginally reduced rainfall of 315 mm (12.4 in) over 26 days, along with lower humidity at 81%. Both months maintain similar minimum and average temperatures, creating a warm and humid climate, but December tends to be wetter and more humid compared to March. For a detailed look at March's weather, you can visit Itacoatiara weather in March.
When comparing the weather of December and April, both months exhibit similar temperature ranges, with minimums around 23°C (73°F), averages at 27°C (81°F), and maximums reaching up to 34°C (94°F in December and 93°F in April). However, April tends to be slightly wetter, receiving more precipitation at 387 mm (15.2 in) over 28 days compared to December's 335 mm (13.2 in) across 27 days. Additionally, humidity levels are a bit higher in April, recorded at 88%, versus December's 85%. For a closer look at what to expect, check out Itacoatiara weather in April.
In comparing the weather between December and May, both months feature a warm average temperature of around 27°C (81°F), with minimum temperatures remaining consistent at 23°C (73°F). However, December tends to be slightly warmer at a maximum of 34°C (94°F) compared to May's 33°C (92°F). Precipitation levels are notably high in December, with 335 mm (13.2 in) falling over 27 days, making it wetter than May, which sees 285 mm (11.2 in) over 28 days. Humidity is also higher in May at 90%, compared to December's 85%. For a more detailed look at May's weather, visit Itacoatiara weather in May.
In December, temperatures in Itacoatiara show a warm range, with a minimum of 23°C (73°F), an average of 27°C (81°F), and a maximum of 34°C (94°F). This month also sees substantial precipitation, averaging 335 mm (13.2 in) over 27 days, coupled with high humidity levels of 85%. In contrast, June offers slightly cooler temperatures, with a minimum of 23°C (73°F), an average of 28°C (82°F), and a maximum of 33°C (92°F). Precipitation in June drops to 143 mm (5.6 in) over 23 days, and humidity remains similar at 84%. For more specific details on June weather, you can visit Itacoatiara weather in June.
When comparing the weather in December and July, it's evident that both months offer warm temperatures, but with notable differences in precipitation and humidity levels. In December, the temperatures range from a minimum of 23°C (73°F) to a maximum of 34°C (94°F), with an average of 27°C (81°F). However, this month experiences a significant amount of rainfall, totaling 335 mm (13.2 in) over 27 days, along with high humidity levels at 85%. In contrast, July presents a slightly higher average temperature of 28°C (83°F) and similar highs and lows, with the maximum reaching 34°C (93°F) and a minimum of 23°C (73°F). The rainfall in July is considerably lower at 78 mm (3.1 in) over just 16 days, accompanied by reduced humidity at 77%. For a closer look at the specific conditions, you can explore Itacoatiara weather in July.
In December, the weather in Itacoatiara is characterized by warm temperatures with a minimum of 23°C (73°F) and an average high of 34°C (94°F), making it quite humid with 85% humidity levels. December experiences significant rainfall, with 335 mm (13.2 in) of precipitation spread over 27 days, resulting in a notably wet month. In contrast, August offers temperatures that are similarly warm, with a minimum of 23°C (74°F) and an average of 29°C (84°F), but it also sees higher maximum temperatures, reaching up to 35°C (96°F). Precipitation in August is much less, totaling only 59 mm (2.3 in) over 10 days, and the humidity is considerably lower at 59%. For a detailed look at the weather in August, check out Itacoatiara weather in August.
In December, the weather is characterized by cooler minimum temperatures averaging around 23°C (73°F) and maximums reaching up to 34°C (94°F). However, December is also marked by significantly higher precipitation levels, with about 335 mm (13.2 in) falling over 27 days, leading to a humidity level of 85%. In contrast, September boasts slightly warmer average temperatures, with a minimum of 23°C (74°F) and a maximum of 35°C (96°F). This month experiences much lower rainfall at 91 mm (3.6 in) across just 12 days, resulting in a noticeably lower humidity level of 43%. For more details on the specific weather conditions in September, you can visit Itacoatiara weather in September.
In December, the weather in Itacoatiara tends to be warmer overall, with average temperatures ranging from 23°C (73°F) to a maximum of 34°C (94°F), compared to October, which experiences slightly higher average temperatures, peaking at 35°C (96°F). However, December proves to be much wetter, with a significant 335 mm (13.2 in) of precipitation over 27 days, whereas October sees much less rainfall at 126 mm (5.0 in) across 15 days. Additionally, December boasts a high humidity level of 85%, contrasting sharply with October’s much lower humidity of 32%. This dramatic difference highlights the shift from the drier, warmer October conditions to the more humid and wetter environment of December. For more details about October weather, you can check Itacoatiara weather in October.
When comparing the weather in December to that of November, notable differences emerge. December tends to be slightly cooler, with an average temperature of 27°C (81°F), while November exhibits a higher average of 28°C (83°F). Interestingly, both months have the same minimum temperature of 23°C (73°F), but December reaches a lower maximum temperature of 34°C (94°F) compared to November’s peak of 35°C (95°F).
December is also much wetter, receiving 335 mm (13.2 in) of precipitation over 27 days, while November sees only 245 mm (9.6 in) over 22 days. Additionally, December's humidity is significantly higher at 85%, creating a more tropical feel compared to November's more moderate 39% humidity. For those looking to understand more about the weather patterns during this transition, Itacoatiara weather in November provides further insights.
In December, Itacoatiara transforms into a vibrant tapestry of warm weather and occasional rainfall, marking a noticeable shift from the other months. The average temperature remains comfortably mild, while high humidity levels create a tropical ambiance that enhances the lush landscape. With frequent precipitation, this month can feel particularly wet, contrasting sharply with the drier months that precede it. If you're planning a visit or simply want to understand the region's unique climate patterns, check out the comprehensive details at Itacoatiara Climate.