Last updated: August 21, 2025
Experience the vibrant January weather in Atibaia, Brazil, where temperatures soar to a maximum of 33°C (91°F) and settle at a comfortable average of 23°C (73°F). While basking in the warmth, be prepared for a minimum temperature that can drop to a refreshing 13°C (55°F) during the cooler nights. This month witnesses 184 mm (7.2 in) of rainfall spread across 18 days, contributing to the lush landscapes while maintaining a humidity level of 88%. Whether you're exploring the natural beauty or enjoying local festivities, January promises a delightful Brazilian summer experience!
In January, Atibaia, Brazil, experiences a delightful range of temperatures that set the tone for the year ahead. With minimums around 13°C (55°F) and maximums soaring to 33°C (91°F), the month boasts an inviting average of 23°C (73°F). This warm climate is characteristic of the summer season in Brazil, where locals and tourists alike relish the sun's embrace. As the month progresses, the subtle increase in temperatures leads into February, where comforts continue with warmer nights and peaks nearing 34°C (93°F). However, as the year moves towards April and May, the temperatures gradually cool, reflecting a shift in seasons that highlights Atibaia's varied climate throughout the year, from brisk evenings to pleasantly warm afternoons—a perfect backdrop for exploring its natural beauty.
January in Atibaia, Brazil, marks the peak of the rainy season, with a substantial precipitation of 184 mm (7.2 in) spread across 18 days. This sets the tone for the month as the wettest of the year, significantly outpacing February's 170 mm (6.7 in) despite having fewer rainy days. As the season progresses, precipitation begins to decline sharply, falling to just 52 mm (2.0 in) by April, and further tapering off in the subsequent months. The trend reveals a clear seasonal pattern, with January and February serving as the high-water marks before a gradual descent into the dryer months of late winter and early spring. Ultimately, the data underscores Atibaia's climate variability, highlighting January's role as a pivotal month for rainfall and seasonal transitions.
In January, Atibaia, Brazil, experiences a high humidity level of 88%, mirroring the conditions of February, which suggests a consistently moist environment at the start of the year. As the months progress, humidity gradually declines, peaking at 87% in March and dipping to 84% in April. By mid-year, May and June show a further decrease, with humidity levels at 79% and 77%, respectively. July marks the transition into drier conditions, dropping to 72%, and August brings a notable shift with humidity levels falling to 65%. This downward trend continues through the latter months, reaching its lowest at 50% in October. However, the humidity begins to rise again in November at 75%, reflecting the cyclical nature of the region’s weather patterns as it wraps back into the more humid conditions of December at 80%. Overall, January stands out as a month of high humidity, setting the tone for the wet season ahead.
In January, Atibaia, Brazil, experiences an extreme UV Index of 16, with a burn time of just 10 minutes, making sun safety a top priority for residents and visitors alike. This trend continues into February, as the UV levels remain constant, and throughout the hotter months, March and April show only a slight decrease, but still maintain an extreme category. As the year progresses into May and June, the UV Index drops to 8 and 7 respectively, transitioning to a very high and high exposure category. However, the intensity picks back up in September, regaining an extreme reading. Throughout the year, the focus on sunscreen and protective measures is crucial due to the glaring sun, especially from November to December when the index peaks again at 16. For more detailed insights on managing UV exposure in this picturesque region, visit Atibaia UV Index.
UV Risk Categories
In Atibaia, Brazil, January shines as the year kicks off with an impressive 232 hours of sunshine, setting a vibrant tone for the months ahead. As summer progresses, the days gradually brighten, peaking in March when the city basks in a radiant 309 hours of sunlight. This trend of increasing sunshine continues, albeit with slight fluctuations, as April and May offer a comfortable 294 and 288 hours, respectively. The mid-year months bring a slight dip, but July swiftly recovers, delivering an abundant 306 hours of sunshine. As the year draws to a close, Atibaia remains generously illuminated, with December matching September's peak at 302 hours. Overall, the landscape of sunshine in Atibaia reveals a mesmerizing rhythm, inviting residents and visitors alike to embrace the warmth throughout the year.
In January, Atibaia, Brazil, experiences a modest 14% chance of sunny weather, marking it as one of the cloudier months of the year. This low likelihood stands in stark contrast to February, where the chances of sunshine significantly increase to 40%, and continue to rise steadily through the early months of the year, peaking in July at a sunny 65%. As summer transitions into autumn, the likelihood of sunny days begins to fluctuate, yet remains relatively favorable compared to the dreariness of January. Overall, while January may not be the ideal month for sun-seekers, the approaching months promise a much brighter outlook.
In Atibaia, Brazil, January shines brightly with approximately 13 hours of daylight, offering long, sun-soaked days perfect for outdoor activities. As the month transitions into February and March, daylight gradually diminishes to around 12 hours, marking the start of a subtle shift towards shorter days. By April, daylight decreases to 11 hours, continuing the trend through May and June, when the days hold steady at 10 hours. Interestingly, as winter departs, the daylight begins to lengthen again in August, reaching 11 hours and building up to 12 hours in October. The year concludes with longer hours of daylight revisiting in both November and December, returning to 13 hours. This rhythmic cycle of daylight not only enhances Atibaia's natural beauty but also shapes the local lifestyle throughout the changing seasons.
In January, the wind in Atibaia, Brazil is gentle, with an average speed of 2.2 m/s (5 mph), a trend that continues into February. As the months progress, there’s a subtle increase in wind activity, peaking in September at 2.9 m/s (7 mph), before stabilizing through October and November. This slight seasonal uptick suggests that as summer approaches, residents can expect a refreshingly brisk breeze, especially in the latter part of the year, where wind speeds range from a comfortable 2.5 m/s (6 mph) in April to a lively 3.2 m/s in October and November. By December, conditions ease slightly, returning to a cozy 2.8 m/s (6 mph), making the shift from summer to winter a harmonious transition in Atibaia's delightful climate.
Weather in Atibaia varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Atibaia, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in January and February, both months offer warm temperatures with distinct variations. January experiences a minimum temperature of 13°C (55°F), an average of 23°C (73°F), and a maximum of 33°C (91°F). In contrast, February has slightly higher minimum temperatures at 15°C (59°F) and a maximum of 34°C (93°F), but the average remains quite similar at 22°C (72°F). Precipitation is another noteworthy factor; January sees 184 mm (7.2 in) of rain over 18 days, while February has a bit less at 170 mm (6.7 in) across 15 days. Both months maintain high humidity levels at 88%. For a closer look at February's weather patterns, visit Atibaia weather in February.
In January, the weather in Atibaia features warmer temperatures with a minimum of 13°C (55°F), an average of 23°C (73°F), and a maximum of 33°C (91°F). This month also sees significant rainfall, with 184 mm (7.2 in) falling over 18 days, resulting in high humidity levels at 88%.
In contrast, March experiences slightly cooler temperatures, with an average of 22°C (72°F) and a maximum of 32°C (89°F). Precipitation decreases to 128 mm (5.1 in) over 15 days, and humidity remains relatively high at 87%. Overall, while both months share similar minimum temperatures, March offers slightly more comfortable conditions and less rainfall. For more details, check out Atibaia weather in March.
The weather in January tends to be warmer and more humid compared to April, with average temperatures ranging from a minimum of 13°C (55°F) to a maximum of 33°C (91°F) and a high humidity level of 88%. This month also sees significantly more precipitation, experiencing about 184 mm (7.2 in) of rainfall over 18 days. In contrast, April offers a mild climate with average temperatures from a minimum of 10°C (51°F) to a maximum of 30°C (86°F), considerably lower precipitation at 52 mm (2.0 in) across just 8 days, and slightly lower humidity at 84%. Overall, April presents a more pleasant and drier weather profile. For more detailed information, check out Atibaia weather in April.
In comparing the weather between January and May, notable differences emerge in both temperature and precipitation patterns. January presents a warmer climate, with average temperatures ranging from a minimum of 13°C (55°F) to a maximum of 33°C (91°F), and high humidity at 88%. In contrast, May features cooler temperatures, with averages from 4°C (40°F) to a maximum of 29°C (84°F), and significantly lower humidity at 79%. Precipitation also differs greatly: January experiences frequent rain with 184 mm (7.2 in) over 18 days, while May sees much less rainfall at just 44 mm (1.7 in) over only 5 days. For more detailed information, you can check Atibaia weather in May.
In January, the weather is warm to hot, with minimum temperatures around 13°C (55°F) and maximums reaching up to 33°C (91°F). This month sees a significant amount of rainfall, totaling 184 mm (7.2 in) over 18 days, coupled with high humidity levels at 88%. In contrast, June offers a cooler climate, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 27°C (82°F). Precipitation is much lighter in June, with only 31 mm (1.2 in) spread over 5 days and a lower humidity of 77%. For more details on the weather in Atibaia during June, you can check Atibaia weather in June.
In January, the weather in Atibaia brings warm temperatures, with a minimum of 13°C (55°F) and a maximum reaching 33°C (91°F), alongside high humidity at 88%. This month experiences significant rainfall, with 184 mm (7.2 in) spread over 18 days, making it quite wet compared to other months. In contrast, July offers a much cooler climate, where the temperatures range from a chilly 1°C (34°F) to a pleasant 28°C (83°F) with an average of 16°C (61°F). Additionally, July sees markedly lower precipitation, with only 14 mm (0.6 in) over just 1 day, and a reduction in humidity to 72%. For more details on July weather, you can check Atibaia weather in July.
January and August present stark contrasts in weather. In January, temperatures soar with a minimum of 13°C (55°F) and an average high of 33°C (91°F), making it one of the warmest months of the year. This warmth is accompanied by high humidity levels at 88% and significant rainfall, totaling 184 mm (7.2 in) over approximately 18 days. In contrast, August experiences cooler temperatures, with a minimum of just 5°C (40°F) and an average of 17°C (63°F), creating a more moderate climate. Additionally, rainfall in August is much lighter, at only 50 mm (2.0 in) across 5 days, and the humidity drops to a more comfortable 65%. For more details, you can check out Atibaia weather in August.
In January, the weather is typically warm and humid, with average temperatures ranging from a minimum of 13°C (55°F) to a maximum of 33°C (91°F). This month also sees significant precipitation, totaling 184 mm (7.2 in) over about 18 days, leading to a high humidity level of 88%. In contrast, September offers a cooler and drier climate, with average temperatures between 9°C (48°F) and 34°C (93°F). Rainfall is much lighter, with only 44 mm (1.7 in) occurring over 6 days, and humidity drops to a more comfortable 58%. For more details, check out Atibaia weather in September.
In January, the weather in Atibaia is characterized by warmer temperatures, with a minimum of 13°C (55°F) and a maximum of 33°C (91°F), averaging around 23°C (73°F). High humidity levels at 88% contribute to a feeling of mugginess, along with significant precipitation of 184 mm (7.2 in) over 18 days. In contrast, October sees cooler temperatures, with a minimum of 11°C (52°F) and a maximum of 35°C (96°F), averaging 21°C (70°F). The humidity drops to 50%, and the area experiences less rain, totaling 124 mm (4.9 in) over 14 days. For more details on October weather in Atibaia, visit Atibaia weather in October.
In comparing the weather between January and November, we observe notable differences in temperature and precipitation. January tends to be slightly warmer, with average temperatures ranging from a minimum of 13°C (55°F) to a maximum of 33°C (91°F), whereas November has a cooler average, with temperatures from a minimum of 10°C (51°F) to a peak of 35°C (95°F). Rainfall is more prevalent in January, accumulating to 184 mm (7.2 in) over 18 days, compared to November's 136 mm (5.4 in) spread over 13 days. Additionally, January experiences higher humidity levels at 88%, contrasting with November’s 75%. For more details, you can check Atibaia weather in November.
In comparing the weather of January and December, both months offer mild temperatures with January peaking slightly higher on average. January's temperatures range from a minimum of 13°C (55°F) to a maximum of 33°C (91°F), while December sees a min of 12°C (54°F) and the same max of 33°C (91°F). Precipitation is higher in January at 184 mm (7.2 in) over 18 days, compared to December's 153 mm (6.0 in) over 20 days, indicating that January tends to be wetter. However, December benefits from lower humidity at 80%, compared to January's higher 88%. For more details on December weather, check out Atibaia weather in December.
January in Atibaia is characterized by warmer temperatures and increased humidity, making it one of the most sultry months of the year. With an average high that often reaches into the low 30s°C, the warmth can be quite oppressive, especially combined with the high humidity levels that hover around 88%. Rainfall is also prominent, as roughly half the month sees precipitation, contributing to the lush landscapes that define this vibrant region. This contrasts sharply with the cooler, drier months that surround January, highlighting the dynamic nature of Atibaia's climate. For more detailed insights into the city's weather patterns throughout the year, be sure to check out Atibaia Climate.