Last updated: August 21, 2025
Experience the vibrant weather of Cuiabá, Brazil in January, where temperatures soar with maximums reaching 37°C (98°F) and an inviting average of 27°C (81°F). Despite the heat, the minimum temperature remains a comfortable 22°C (72°F), perfect for exploring the city's charm. January is also known for its significant precipitation, accumulating 168 mm (6.6 in) over 21 days, contributing to the lush surroundings. With humidity levels averaging a steamy 88%, visitors should be prepared for a tropical atmosphere that embodies the essence of this stunning Brazilian destination.
In January, Cuiabá, Brazil experiences a warm tropical climate, with temperatures ranging from a mild 22°C (72°F) at night to a sizzling 37°C (98°F) during the day. The average temperature holds steady at a comfortable 27°C (81°F), setting the tone for a month characterized by heat and humidity. As the year progresses into February, the temperatures slightly dip, maintaining that average but with a max of 35°C (95°F)—a precursor to the even hotter months ahead. As March arrives, the highs remain consistent, signaling a trend of persistent warmth, yet the arrival of April introduces a noticeable coolness at night, dropping to 15°C (59°F). This trend of fluctuating temperatures continues through the year, with notable cool nights in May through July, before the heat once again returns in August, peaking to 39°C (102°F). Despite these variations, January stands out as a quintessential summer month, beckoning visitors to experience the vibrant heat of Cuiabá.
In Cuiaba, Brazil, January marks the beginning of a notably wet season, with precipitation totaling 168 mm (6.6 in) over 21 days. This sets a trend for a gradual increase in rainfall leading into February, where the numbers rise sharply to 224 mm (8.8 in), making it the rainiest month of the year. Following this peak, precipitation levels begin to decline, with March witnessing 201 mm (7.9 in) and a significant drop as April approaches, dropping to 123 mm (4.8 in). The rainy days see a lessening trend as well, paving the way for a dry spell from June to July, where only trace amounts of rain are recorded. As the year progresses into the latter months, there’s a return to wetter conditions, especially in November and December, indicating a distinct seasonal pattern of heavy rains followed by substantial dry periods throughout the year.
In January, Cuiabá experiences a high humidity level of 88%, setting the tone for a consistently humid beginning to the year. This level remains unchanged into February, maintaining the sticky atmosphere. As the months progress, humidity inches upward slightly to 89% in March before dropping to 87% in April. The trend takes a sharp turn during the dry season, with humidity plummeting to 63% in June and reaching a low of 29% in October. Interestingly, a rise in humidity returns in the latter months, peaking again at 84% in December. This cyclical pattern showcases Cuiabá's tropical climate, characterized by high humidity during the wet months and a stark decrease as it transitions into the dry season.
In January, Cuiabá, Brazil, experiences an extreme UV Index of 16, demanding caution with a quick burn time of just 10 minutes. This trend continues into February, maintaining the same high UV levels, which starkly highlights the region's intense sun exposure during the peak of summer. Although March sees a slight decrease to a UV Index of 14, the danger remains high with an unchanged burn time. As the months progress, April slips to a UV Index of 13, yet it still falls under the extreme category. Starting in May, UV levels moderate to very high with a UV Index of 10, extending burn time to 15 minutes, suggesting some respite. However, the intensity ramps back up in August, September, October, and November, where the extreme levels return, peaking again in December at 16. Thus, vigilance is essential all year round, especially in January, to avoid harmful sun exposure. For more details, check out the full Cuiaba UV Index.
UV Risk Categories
In Cuiaba, Brazil, January greets residents with a bright 249 hours of sunshine, marking the beginning of a remarkable trend that continues throughout the year. As summer unfolds, the city basks in increasing daylight, reaching a peak of 330 hours in July, making it one of the sunniest months. Following closely behind, August and September maintain high sun exposure, with 328 and 315 hours respectively, creating an inviting atmosphere for outdoor activities. As the year progresses, sunshine slightly recedes but remains generous, with October offering 324 hours and December trailing with 303 hours. This gradual ebb and flow of sunlight not only highlights Cuiaba's tropical allure but also showcases the city's vibrant climate as it transitions through its seasons.
In Cuiabá, Brazil, January presents a modest 17% chance of sunny weather, making it one of the cloudier months in the region. As the year progresses, the likelihood of sunshine steadily increases, peaking in July with a robust 91%. Interestingly, February and March also show significant improvement, climbing to 28% and 31%, respectively, indicating a transition toward more favorable weather. By April and May, residents and visitors can enjoy a higher probability of sunny days, with chances rising to 38% and 49%. This upward trend continues through mid-year, allowing for an abundance of sunshine as August and September maintain a considerable likelihood, before slipping again in the latter part of the year. Overall, if you're planning to visit Cuiabá, aim for the middle of the year for the brightest weather!
In January, Cuiabá, Brazil enjoys a generous 12 hours of daylight, a trend that continues through February and March, making these months ideal for outdoor activities. As the year progresses into April, daylight begins to wane slightly to 11 hours, a pattern that remains steady through the mid-year months of May, June, July, and August. This consistency offers a balanced experience of day and night. However, come September, daylight stretches back to 12 hours, revitalizing the city's vibrant atmosphere. October and November maintain this trend, providing ample sunlight before December ushers in a longer 13-hour daylight period, culminating the year with the most radiant days. This cyclical dance of light allows residents and visitors alike to bask in Cuiabá's diverse beauty throughout the year.
In Cuiabá, Brazil, the winds of January are gentle, with an average speed of 1.7 m/s (4 mph), setting a calm tone that prevails throughout early the year. This serene breeze continues into February, maintaining the same moderate pace. However, a subtle shift begins in March as wind speeds tick up to 1.9 m/s (4 mph), hinting at the seasonal transitions to come. As the months progress toward the dry season, wind speeds gradually increase, peaking at 2.5 m/s (6 mph) in August. This trend indicates a notable rise in wind activity as the region braces for the hotter months. Interestingly, by the time December rolls around, the winds return to their more tranquil nature, averaging 1.9 m/s (4 mph), bringing a serene end to the year. Overall, while January starts the year with stillness, Cuiabá's winds reveal a compelling pattern of gradual intensification, offering a refreshing contrast to the heat of its tropical climate.
Weather in Cuiaba varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Cuiaba, focusing on differences in temperature, rainfall, humidity, and UV levels.
January and February in Cuiabá exhibit relatively similar weather patterns, with both months experiencing high humidity levels around 88%. January tends to be slightly warmer, with temperatures ranging from a minimum of 22°C (72°F) to a maximum of 37°C (98°F), while February sees a minor decrease with temperatures fluctuating between 21°C (70°F) and 35°C (95°F). Precipitation also increases in February, reaching 224 mm (8.8 in) over 24 days compared to January's 168 mm (6.6 in) over 21 days. For more detailed information, you can visit Cuiaba weather in February.
In January, the weather in Cuiabá features a minimum temperature of 22°C (72°F) and an average of 27°C (81°F), with maximum temperatures reaching up to 37°C (98°F). The month experiences significant rainfall, totaling 168 mm (6.6 in) over 21 days, and humidity levels are relatively high at 88%. In contrast, March offers slightly cooler temperatures, with a minimum of 21°C (70°F) and a maximum of 36°C (97°F), while still maintaining an average of 27°C (81°F). However, March sees increased rainfall, amounting to 201 mm (7.9 in) across 23 days, and humidity rises marginally to 89%. For more detailed insights, you can check Cuiaba weather in March.
In January, the weather tends to be hotter and more humid than in April, with temperatures ranging from a minimum of 22°C (72°F) to a maximum of 37°C (98°F), and an average temperature of 27°C (81°F). The month experiences significant rainfall, with 168 mm (6.6 in) spread over 21 days, resulting in a high humidity level of 88%. In contrast, April sees cooler temperatures, with a minimum of 15°C (59°F) and a maximum of 36°C (97°F), while the average temperature is slightly lower at 26°C (80°F). Precipitation is also reduced to 123 mm (4.8 in) over 16 days, maintaining a slightly lower humidity level of 87%. For more detailed insights on weather patterns during this month, check Cuiaba weather in April.
The weather in January is notably warmer and more humid compared to May. January experiences average temperatures ranging from a minimum of 22°C (72°F) to a scorching maximum of 37°C (98°F), with significant rainfall totaling 168 mm (6.6 in) over 21 days, resulting in a humidity level of 88%. In contrast, May offers a milder climate with average temperatures between 7°C (45°F) and 34°C (94°F). The rainfall in May is minimal, just 33 mm (1.3 in) over 6 days, and the humidity drops to 78%. For a more detailed insight into May's weather, you can check Cuiaba weather in May.
In January, temperatures in Cuiabá are significantly warmer, with a minimum of 22°C (72°F) and an average of 27°C (81°F), peaking at a scorching 37°C (98°F). This month also experiences high humidity at 88% and substantial rainfall, averaging 168 mm (6.6 in) across 21 days. In contrast, June brings a refreshing change, featuring cooler temperatures with a minimum of 10°C (51°F), an average of 24°C (76°F), and a maximum of 35°C (95°F). The precipitation drops dramatically to just 2 mm (0.1 in) over the entire month, and humidity levels decrease to a more comfortable 63%. For more details on the June weather in Cuiabá, refer to Cuiaba weather in June.
In January, Cuiaba experiences a tropical climate with temperatures ranging from a minimum of 22°C (72°F) to a scorching maximum of 37°C (98°F), along with significant rainfall of 168 mm (6.6 in) spread over 21 days and high humidity at 88%. In sharp contrast, July brings much cooler temperatures, with a minimum of 8°C (47°F) and an average of 24°C (75°F), providing a pleasant respite from the heat. Notably, July sees absolutely no rainfall, leading to dry conditions and a much lower humidity level of 50%. For more detailed weather information, you can explore Cuiaba weather in July.
In January, Cuiaba experiences a distinctly warm climate with minimum temperatures averaging 22°C (72°F) and maximums reaching up to 37°C (98°F). This month is also marked by high humidity levels at 88% and considerable rainfall, with 168 mm (6.6 in) over 21 days. In contrast, August presents a cooler and drier scenario. Minimum temperatures drop to 11°C (52°F), while average highs reach 39°C (102°F). Rainfall is minimal, with only 12 mm (0.5 in) recorded over just 1 day, and humidity levels decrease significantly to 39%. For more detailed information, visit Cuiaba weather in August.
In January, the weather is characterized by warm temperatures, with a minimum of 22°C (72°F) and an average of 27°C (81°F), peaking at 37°C (98°F). This month experiences significant rainfall, with 168 mm (6.6 in) of precipitation over 21 days, contributing to a high humidity level of 88%. In contrast, September sees a more moderate climate, with temperatures ranging from a cooler minimum of 12°C (54°F) to a maximum of 41°C (106°F) and an average of 29°C (84°F). During this month, precipitation drops drastically to just 26 mm (1.0 in) over 5 days, resulting in a much lower humidity level of 30%. For more details on the weather in September, visit Cuiaba weather in September.
In January, the weather tends to be warmer and more humid, with temperatures ranging from a minimum of 22°C (72°F) to a scorching maximum of 37°C (98°F) and an average of 27°C (81°F). This month also experiences significant precipitation, with 168 mm (6.6 in) of rain over about 21 days, leading to a high humidity level of 88%. Conversely, October features slightly cooler temperatures, with a minimum of 19°C (66°F) and a maximum of 41°C (107°F), and an average of 28°C (84°F). Precipitation decreases to 106 mm (4.2 in) spread over 14 days, resulting in a much lower humidity of 29%. For more detailed information about the weather in October, you can check out Cuiaba weather in October.
In comparing the weather conditions of January and November, both months feature similar average temperatures, around 27°C (81°F), making them relatively warm. However, January tends to be slightly more humid with a humidity level of 88%, while November experiences a lower humidity of 62%. Additionally, November has a marginally higher maximum temperature, reaching up to 39°C (102°F), compared to January's maximum of 37°C (98°F). Precipitation levels are also comparable, with January recording 168 mm (6.6 in) and November slightly higher at 173 mm (6.8 in), both spread over 21 days. For more detailed information, you can check out Cuiaba weather in November.
In January, the weather is slightly warmer than in December, with minimum temperatures of 22°C (72°F) compared to December's 21°C (71°F) and maximum temperatures of 37°C (98°F) versus December's 36°C (97°F). Both months have the same average temperature of 27°C (81°F). However, January experiences less precipitation, totaling 168 mm (6.6 in) over 21 days, while December is wetter with 213 mm (8.4 in) across 24 days. Additionally, January has a higher humidity level at 88%, compared to December's 84%. For more information, check Cuiaba weather in December.
In January, Cuiabá experiences its peak of summer heat, with high temperatures soaring to nearly 37°C, making it notably warmer compared to other months. This intense heat is accompanied by an elevated humidity level of 88%, creating a sultry atmosphere that can feel quite oppressive. While precipitation is common, with 21 rainy days contributing to a significant total of 168 mm, these showers provide temporary relief from the heat. Overall, January stands out as a month where the climate is characterized by its high temperatures and frequent rain, making it a unique period in Cuiabá's annual weather cycle. For more insights into the Cuiabá Climate, be sure to explore Cuiaba Climate.