Last updated: August 21, 2025
In January, Barreirinhas, Brazil experiences a warm tropical climate, with maximum temperatures reaching up to 33°C (91°F) and an average of 27°C (81°F). The nights provide a comfortable respite with temperatures rarely dropping below 23°C (74°F). Despite the warmth, January is notable for its high humidity at 89% and substantial rainfall, accumulating around 135 mm (5.3 in) over 22 rainy days. This month exemplifies the vibrant and lush environment of Barreirinhas, perfect for travelers seeking the beauty of Brazil's natural landscapes, albeit with the necessity of preparing for wet weather.
In January, Barreirinhas, Brazil, embraces a tropical climate with temperatures ranging from a pleasant 23°C (74°F) to a sizzling 33°C (91°F), averaging around 27°C (81°F). This warm weather sets the stage for a series of sun-drenched days, ideal for exploring the stunning dunes and lagoons of the Lençóis Maranhenses National Park. As you transition into February and March, the temperatures remain consistently mild, hovering around 27°C (81°F) for the average, while daily highs moderate slightly. Notably, April and May maintain this trend, offering a stable warmth that invites outdoor adventures. As the months progress into June and July, the maximum temperatures peak slightly, occasionally reaching 33°C (92°F), but the overall comfort of the evenings keeps the atmosphere enjoyable. By the end of summer, in August through October, daily highs rise again, with readings soaring to 35°C (95°F) and even touching 36°C (96°F), promising steamy days filled with sun and vibrant local culture. Despite these fluctuations, the consistent warmth throughout the year ensures that Barreirinhas is a paradise for sun-seekers and adventurers alike.
January in Barreirinhas, Brazil, marks the beginning of a rainy season characterized by persistent precipitation, receiving an average of 135 mm (5.3 in) over 22 days. This significant rainfall sets the stage for the following months, where February and March experience a dramatic increase, with precipitation soaring to 302 mm (11.9 in) and 349 mm (13.7 in), respectively. This period of peak rainfall is essential for the region's lush landscapes and supports the diverse ecosystems. As summer transitions into fall, rainfall begins to taper off, with dry days becoming more common by August, where only 11 mm (0.4 in) is recorded over just 2 days. Overall, January serves as the catalyst for a robust rainy season in Barreirinhas, nurturing its natural beauty before the region shifts into a notable dry spell.
In January, Barreirinhas, Brazil, greets the new year with a high humidity level of 89%, reflecting the lingering warmth and moisture of the summer months. As the season progresses into February and March, humidity remains elevated at 90%, creating a tropical atmosphere that is characteristic of this vibrant region. By April, humidity peaks at 92%, making it one of the most humid months of the year. However, as the year transitions into the cooler months, a noticeable decline begins in June, with humidity dropping to 79%, and further decreasing throughout the summer, hitting a low of 51% by September. This trend continues into October, before creeping back up in November and December, blending the more comfortable drier periods with the characteristic humid climate of Barreirinhas. Overall, January serves as a precursor to the humid embrace of summer, setting the stage for the evolving weather patterns that follow.
In January, Barreirinhas, Brazil, experiences an extreme UV Index of 15, with a quick burn time of just 10 minutes. This intense sunshine is a trend that continues through February and April, where the UV Index remains at 15. As the months progress, March peaks at 16, marking the highest UV reading within the year. The UV levels gradually taper off in May and June, dropping to 13 and 12 respectively, yet still fall under the extreme exposure category. This trend of high UV exposure persists until July, when it dips slightly to 11, before rebounding to 13 by August and maintaining that level through October. As the year concludes, November brings a slight increase to 14 before finishing at 13 in December. With such consistently high UV levels throughout the year, it’s essential for visitors and residents alike to take protective measures. Stay informed by checking the detailed daily forecast at Barreirinhas UV Index.
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In January, Barreirinhas, Brazil, basks in 246 hours of radiant sunshine, setting the stage for the vibrant months ahead. As the year progresses, sunshine gradually increases, peaking in July and August with an impressive 343 and 347 hours respectively. This upward trend showcases the region's transition from the warmer summer months into the sunny heights of late winter. By October, the sunshine reaches its zenith at 356 hours, promising delightful days for beach lovers and nature enthusiasts alike. As the year winds down, although the hours slightly decrease, November maintains a robust 335 hours, ensuring the charm of Barreirinhas never fades away. This impressive pattern of consistent sunshine highlights Barreirinhas as a true haven for those seeking warmth and light throughout the year.
In Barreirinhas, Brazil, the likelihood of sunny weather sees a distinct upward trend as we progress from January to August. Starting the year, January marks a modest 18% chance of sunshine, which gradually increases, reaching 66% by August. This steady rise highlights the transition into dryer months, with February seeing a slight uptick to 23%, and peaks occurring in July and August. As the year winds down, the chances begin to taper off, dropping to 29% in December. Thus, for those seeking sunny skies, planning a visit between June and August might deliver the most delightful weather experiences.
In Barreirinhas, Brazil, the daylight duration is a consistent feature of the landscape throughout the year. January marks the beginning of a cycle where each month steadily maintains around 12 hours of daylight, fostering a vibrant atmosphere for both residents and visitors. This even distribution continues seamlessly into February, March, April, and later months, creating a rhythm of light that encourages outdoor activities. As the year progresses into May, June, and July, the daylight dips slightly to 11 hours, providing a brief, cozy interlude before transitioning back to 12 hours from August through to December. This delightful balance of sunshine enhances the natural beauty of Barreirinhas, allowing for a rich exploration of its stunning landscapes year-round.
In Barreirinhas, Brazil, the January winds set the tone for a year of gentle breezes, with an average speed of 4.2 m/s (9 mph), making it one of the more invigorating months. As the seasons shift, wind speeds gradually decrease through February and March, reaching their annual low of 3.0 m/s (7 mph) by March. However, this calm is short-lived; by September, the winds begin to pick up momentum, peaking at 5.0 m/s (11 mph). As December approaches, there's a captivating fluctuation, ending the year on a high note with 4.8 m/s (11 mph). This trend reflects a dynamic climate where the winds, while gentle in January, evolve into more spirited gusts, perfect for those seeking adventure amidst the stunning landscapes of Barreirinhas.
Weather in Barreirinhas varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Barreirinhas, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between January and February, both months exhibit warm temperatures with a minimum of 23°C (73°F) and an average of 27°C (81°F). However, February tends to be slightly cooler at a maximum of 32°C (91°F) compared to January's peak of 33°C (91°F). Notably, February experiences significantly higher precipitation, totaling 302 mm (11.9 in), over 27 days, which is quite a contrast to January’s 135 mm (5.3 in) across 22 days. Additionally, humidity levels remain high in both months, with February slightly increasing to 90%. For more detailed information, visit Barreirinhas weather in February.
In comparing the weather between January and March, we see some notable differences. Both months maintain a similar temperature range, with January showcasing minimum temperatures of 23°C (74°F), an average of 27°C (81°F), and a maximum of 33°C (91°F), while March offers a slightly lower maximum of 32°C (91°F). Precipitation significantly increases in March, reaching 349 mm (13.7 in) over 30 days compared to January's 135 mm (5.3 in) over 22 days. Consequently, while humidity remains relatively stable at 89% in January and 90% in March, the increase in precipitation might make March feel much wetter. For more specifics on March weather, you can check out Barreirinhas weather in March.
In comparing the weather between January and April, both months feature similar average temperatures, with January experiencing a minimum of 23°C (74°F) and a maximum of 33°C (91°F), while April has slightly cooler temperatures, ranging from a minimum of 22°C (73°F) to a maximum of 32°C (91°F). However, April is notably characterized by significantly higher precipitation, accumulating 328 mm (12.9 in) over 28 days, compared to January's 135 mm (5.3 in) over 22 days. Additionally, humidity levels are slightly elevated in April at 92%, compared to January's 89%. For more details on April weather, you can check Barreirinhas weather in April.
In comparing the weather between January and May, both months share a similar average temperature of 27°C (81°F), but January experiences slightly higher maximum temperatures at 33°C (91°F), while May peaks at 32°C (91°F). Despite these comparable temperatures, May is notably wetter, receiving 236 mm (9.3 in) of precipitation over 22 days, compared to January's 135 mm (5.3 in) across the same number of days. Humidity remains consistent at 89% for both months, creating a persistently tropical feel throughout. For more detailed information, you can check Barreirinhas weather in May.
In comparison, January and June exhibit some similarities in temperature, with January showing a slightly higher maximum temperature of 33°C (91°F) compared to June's 32°C (90°F). Both months have a minimum temperature of 23°C (73°F), and their average temperatures remain close, with January averaging 27°C (81°F) and June averaging 27°C (82°F). However, January experiences significantly more rainfall, totaling 135 mm (5.3 in) over 22 days, while June sees only 70 mm (2.8 in) over 12 days, resulting in lower humidity levels in June at 79% compared to January's 89%. For a detailed overview of conditions in June, you can check Barreirinhas weather in June.
In January, the weather in Barreirinhas is characterized by higher humidity, averaging 89%, and significantly more rainfall, with 135 mm (5.3 in) spread over 22 days. Temperatures range from a minimum of 23°C (74°F) to a maximum of 33°C (91°F), making it a warm and wet month. In contrast, July experiences similar average temperatures, ranging from 22°C (72°F) to 33°C (92°F), but with much lower humidity at 64% and only 53 mm (2.1 in) of precipitation over just 8 days. This results in a drier and more comfortable climate in July. For more details, check out Barreirinhas weather in July.
In comparing the weather between January and August, January tends to be warmer and significantly wetter. The average temperature in January is around 27°C (81°F), with maximum highs reaching up to 33°C (91°F), while August offers slightly cooler temperatures, averaging 28°C (82°F) with highs peaking at 35°C (95°F). January experiences considerable precipitation, totaling 135 mm (5.3 in) over approximately 22 days, resulting in high humidity levels of 89%. In contrast, August is much drier, with only 11 mm (0.4 in) of rain across just 2 days and a significantly lower humidity level of 55%. For a detailed look at the weather specifics for August, you can visit Barreirinhas weather in August.
In January, the weather in Barreirinhas is characterized by consistently warm temperatures, with a minimum of 23°C (74°F) and an average of 27°C (81°F), peaking at a maximum of 33°C (91°F). During this month, the region experiences significant rainfall, totaling 135 mm (5.3 in) over 22 days, which contributes to a high humidity level of 89%. In contrast, September offers a drier and slightly warmer climate, with temperatures averaging 28°C (83°F) and reaching up to 35°C (95°F). The month sees minimal precipitation at just 6 mm (0.2 in) and boasts zero rainy days, resulting in a much lower humidity of 51%. For more detailed information about the weather in September, check out Barreirinhas weather in September.
January and October present contrasting weather conditions. In January, temperatures range from a minimum of 23°C (74°F) to a maximum of 33°C (91°F), with an average of 27°C (81°F). This month experiences significant rainfall, with 135 mm (5.3 in) over 22 days, resulting in high humidity levels of 89%. In contrast, October sees slightly warmer temperatures, with a minimum of 24°C (76°F) and a maximum of 35°C (96°F), averaging 28°C (83°F). Precipitation drops dramatically to just 11 mm (0.4 in) spread over 3 days, bringing humidity down to a much more comfortable 53%. For a detailed overview of October weather, visit Barreirinhas weather in October.
In January, the weather is generally warmer and significantly wetter compared to November. January boasts an average temperature ranging from a minimum of 23°C (74°F) to a maximum of 33°C (91°F), with a high humidity level of 89% and substantial precipitation totaling 135 mm (5.3 in) across 22 days. In contrast, November presents slightly higher average temperatures, with a minimum of 24°C (75°F) and a maximum of 34°C (93°F), but significantly less rainfall—only 35 mm (1.4 in) over just 8 days of rain and a much lower humidity of 60%. For a more detailed look at the weather in November, you can visit Barreirinhas weather in November.
In January, the weather is characterized by slightly warmer temperatures, with an average of 27°C (81°F), peaking at a maximum of 33°C (91°F) and a consistent minimum of 23°C (74°F). However, this month experiences significantly higher precipitation, averaging 135 mm (5.3 in) over 22 days, and a much higher humidity of 89%. In contrast, December offers a bit more warmth, recording an average temperature of 28°C (83°F) and highs of 34°C (94°F), but with less rainfall at 59 mm (2.3 in) across only 13 days and lower humidity levels at 78%. For a closer look at the December climate specifics, you can check out Barreirinhas weather in December.
In January, Barreirinhas experiences warm and humid conditions that set it apart from other months of the year. With temperatures averaging around 27°C (81°F) and maximums reaching up to 33°C (91°F), visitors can expect a steamy atmosphere ideal for exploring the spectacular natural beauty of the region. However, this month also brings considerable rainfall, resulting in 22 rainy days and a total precipitation of 135 mm (5.3 in), which underscores the importance of packing an umbrella alongside your sunscreen. The high humidity of 89% can make the warm temperatures feel more intense, making January a unique blend of tropical warmth and frequent showers. For a comprehensive look at Barreirinhas weather throughout the year, check out the detailed Barreirinhas Climate guide.