Last updated: August 21, 2025
In January, São José do Rio Preto, Brazil, experiences a warm and humid climate, characterized by a maximum temperature soaring to 35°C (96°F) and an average temperature around 25°C (78°F). The month typically sees a minimum temperature of 19°C (66°F), providing a comfortable evening coolness. However, residents and visitors should prepare for considerable precipitation, with 174 mm (6.8 in) of rainfall over approximately 17 days. The humidity levels remain high at 85%, contributing to the lush, tropical atmosphere that defines this vibrant region.
In Sao Jose do Rio Preto, Brazil, January offers a vibrant summer experience, with temperatures ranging from a mild 19°C (66°F) at night to a sizzling 35°C (96°F) during the day. The average temperature hovers around 25°C (78°F), providing an ideal backdrop for outdoor adventures. As the month transitions into February, the climate remains consistently warm, echoing January's averages, though nights cool slightly to 16°C (62°F). Notably, a gradual decline in maximum temperatures begins in March, dipping to 34°C (94°F) while maintaining a steady average of 25°C (78°F). This trend continues into April, where nights can feel refreshing at 13°C (56°F), signaling the impending arrival of cooler months ahead. For those planning their visit, it's clear that January serves as the pinnacle of warmth and vibrancy in this Brazilian city, setting the stage for a delightful summer escapade.
In January, São José do Rio Preto experiences a significant precipitation total of 174 mm (6.8 in), distributed over 17 days. This marks the beginning of the rainy season, as rainfall increases from December and continues into February, when the monthly total peaks at 181 mm (7.1 in). Following this, a notable decline occurs, with March seeing just 113 mm (4.5 in) over fewer days, signaling a gradual transition to the drier months ahead. The spike in rainfall during the first two months contrasts sharply with the minimal precipitation observed from June to August, where rainfall drops to a mere 6 mm (0.2 in) or less. As the year progresses, precipitation levels begin to rise again in October and November, culminating in a return to wetter conditions as the seasons shift. This pattern illustrates São José do Rio Preto's distinct rainy and dry seasons, significantly influencing the local climate and ecology.
In January, Sao Jose do Rio Preto experiences a high humidity level of 85%, setting the tone for a sultry summer month. As the year progresses into February, humidity slightly increases to 87%, creating a steamy atmosphere that resonates with the season's heat. This slight uptick is followed closely by March, where humidity levels remain relatively stable at 86%. However, the arrival of April brings a noticeable drop to 79%, hinting at the onset of transitional weather. As temperatures continue to fall in the subsequent months, humidity decreases further, reaching a low of 48% in August. The trend continues, culminating in October with a minimum level of 35%. Yet, as the year draws to a close, humidity levels gradually rise again, peaking at 80% in December. Thus, the humidity in Sao Jose do Rio Preto reflects a compelling ebb and flow, mirroring the city's dynamic climate and seasonal changes.
In January, Sao Jose do Rio Preto experiences an extremely high UV Index of 15, indicating a significant risk of harm from unprotected sun exposure, with a burn time of only 10 minutes. This trend of extreme UV levels extends into February, where the index climbs to 16, further emphasizing the need for protective measures. As the season progresses into March and April, the index slightly decreases to 13 and 11, respectively, yet remains within the extreme category. The months that follow show a gradual decline in UV intensity; by June, the index drops to 7, signaling a transition to high exposure levels. However, it’s important to note that from September to November, the UV Index rebounds, returning to extreme levels with consistent burn times of just 10 minutes. This cyclical pattern of extreme UV exposure underscores the importance of vigilance and protection. For more details on UV Index trends, check out Sao Jose do Rio Preto UV Index.
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In January, Sao Jose do Rio Preto basks in an inviting 248 hours of sunshine, setting the stage for a vibrant start to the year. As the months progress, the city experiences a notable increase in daylight, peaking in March with an impressive 332 hours. The sunny days begin to wane slightly but remain plentiful, particularly in September and October, which boast 319 hours each, hinting at a region that enjoys a consistently bright atmosphere throughout the year. This trend of ample sunshine not only enriches the city's outdoor culture but also enhances the allure of its warm summer days. With an overall steady flux of sunlight, Sao Jose do Rio Preto firmly establishes itself as a sun-lovers' paradise.
In January, the likelihood of sunny weather in São José do Rio Preto is relatively low, with only a 16% chance of sunshine. This marks the start of the year with a notable contrast to the following months, where February sees a significant increase to 48%, indicating a shift towards brighter days. The trend continues with March at 41% and a steady ascent into the dry season, reaching 66% in April and peaking at a remarkable 84% in July. August and September also enjoy high probabilities of sunshine, tapering slightly towards the end of the year, but January remains one of the cloudiest months in this vibrant Brazilian city, making the post-holiday blues a bit more palpable.
January in São José do Rio Preto, Brazil, welcomes an inviting 13 hours of daylight, setting the stage for a vibrant start to the year. As the summer sun stretches its golden rays, this ample daylight gradually diminishes in February and March, both offering 12 hours each. By April and May, daylight further declines to 11 hours, ushering in the cooler months. The trend continues through June and July, where daylight is at its lowest with 10 hours. As winter gives way to spring, the days gradually lengthen again in August and September to 11 hours. October marks a return to 12 hours, followed by a resurgence in daylight during November and December, each boasting a bright 13 hours once more. This rhythmic ebb and flow of daylight not only marks the passage of time but also enriches the seasonal tapestry of life in this vibrant Brazilian city.
In January, Sao Jose do Rio Preto experiences a gentle breeze, with an average wind speed of 2.1 m/s (5 mph). This tranquil start to the year sets the tone for the following month, where the winds remain consistent, holding steady at the same speed. As the summer months approach, a gradual increase in wind velocity can be observed, peaking at 3.2 m/s (7 mph) in August. This upward trend continues through September before slightly tapering off in the subsequent months, creating a dynamic yet mild airflow throughout the year. Overall, January's breezy beginnings lead to progressively stronger winds, reflecting the shifting patterns of the region's climate.
Weather in Sao Jose do Rio Preto varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Sao Jose do Rio Preto, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather of January and February, we see that both months share similar temperature ranges, with January recording a minimum of 19°C (66°F) and February slightly cooler at 16°C (62°F). Both months have the same average maximum temperature of 35°C (96°F), making them both warm. However, February experiences slightly more precipitation, with 181 mm (7.1 in) across 18 days, compared to January's 174 mm (6.8 in) over 17 days. Additionally, February's humidity is slightly higher at 87% compared to January's 85%. For more details on February's weather patterns, check out Sao Jose do Rio Preto weather in February.
In January, the weather in São José do Rio Preto is characterized by warmer temperatures, with a minimum of 19°C (66°F) and a maximum reaching 35°C (96°F). The month sees significant precipitation, totaling 174 mm (6.8 in) over 17 days, accompanied by high humidity levels averaging around 85%. In contrast, March experiences slightly cooler temperatures, with a minimum of 16°C (62°F) and a maximum of 34°C (94°F). Precipitation is reduced to 113 mm (4.5 in) over 13 days, while humidity remains relatively high at 86%. Overall, while both months are warm, January tends to be wetter and slightly hotter than March. For more detailed information, check out the Sao Jose do Rio Preto weather in March.
In January, the weather is typically warmer and more humid, with temperatures ranging from a minimum of 19°C (66°F) to a maximum of 35°C (96°F) and an average of 25°C (78°F). This month also sees significant precipitation, totaling 174 mm (6.8 in) over 17 days, contributing to a high humidity level of 85%. In contrast, April experiences milder temperatures, with a minimum of 13°C (56°F), an average of 24°C (76°F), and a maximum of 34°C (94°F). Precipitation drops sharply to 52 mm (2.1 in) over just 5 days, and humidity decreases to 79%. For a detailed look at weather conditions during April, you can visit Sao Jose do Rio Preto weather in April.
January and May present a stark contrast in weather conditions. In January, temperatures soar with a minimum of 19°C (66°F), reaching an average of 25°C (78°F) and peaking at 35°C (96°F), accompanied by high humidity at 85%. The month experiences significant rainfall, averaging 174 mm (6.8 in) over 17 days, resulting in a rather humid atmosphere. In comparison, May offers a much cooler climate with temperatures ranging from a minimum of 6°C (43°F) to an average of 22°C (71°F) and a maximum of 33°C (92°F). The precipitation is significantly lower, totaling only 33 mm (1.3 in) spread across just 4 days, and the humidity dips to a more comfortable 68%. For more detailed information on the weather in May, you can check Sao Jose do Rio Preto weather in May.
In January, the weather is significantly warmer and more humid, with temperatures ranging from a minimum of 19°C (66°F) to a maximum of 35°C (96°F) and an average of 25°C (78°F). Notably, January sees considerable rainfall, accumulating 174 mm (6.8 in) over 17 days, resulting in a high humidity level of 85%.
In contrast, June presents a much cooler and drier climate. The temperatures range from a low of 8°C (47°F) to a high of 32°C (90°F), with an average of 22°C (71°F). Precipitation is minimal in June, with only 6 mm (0.2 in) recorded over just one day and a humidity level that drops to 60%. For more detailed insights, you can check Sao Jose do Rio Preto weather in June.
January and July present strikingly different weather patterns. In January, temperatures range from a minimum of 19°C (66°F) to a maximum of 35°C (96°F), with an average of 25°C (78°F). This month also experiences significant rainfall, totaling 174 mm (6.8 in) over approximately 17 days, accompanied by high humidity at 85%. In contrast, July features much cooler temperatures, with a minimum of 4°C (39°F) and a maximum of 33°C (91°F), averaging around 21°C (70°F). Notably, this month is marked by minimal precipitation, only 6 mm (0.2 in) over 0 rainy days and lower humidity at 57%. For more insights on the weather during July, you can find details here: Sao Jose do Rio Preto weather in July.
In January, the weather in Sao Jose do Rio Preto is characterized by warmer temperatures, with a minimum of 19°C (66°F) and an average of 25°C (78°F), reaching a high of 35°C (96°F). However, it also brings significant precipitation, with 174 mm (6.8 in) falling over 17 days, contributing to a high humidity level of 85%. In contrast, August experiences cooler temperatures, with a minimum of 7°C (45°F) and an average of 22°C (73°F), while still peaking at 35°C (96°F). The month is much drier, featuring only 23 mm (0.9 in) of rain over just 2 days and a lower humidity level of 48%. For more detailed information on the weather patterns, check out Sao Jose do Rio Preto weather in August.
January and September present contrasting weather conditions. In January, temperatures range from a minimum of 19°C (66°F) to a maximum of 35°C (96°F), with an average of 25°C (78°F). This month experiences significant precipitation, totaling 174 mm (6.8 in) over 17 days, coupled with high humidity at 85%. In contrast, September sees a lower minimum temperature of 11°C (53°F), a slightly higher average temperature of 26°C (79°F), and an impressive maximum of 40°C (104°F). Precipitation during September is minimal, with only 23 mm (0.9 in) over just 3 days and a much lower humidity of 41%. For more detailed information, you can refer to Sao Jose do Rio Preto weather in September.
In January, the weather in Sao Jose do Rio Preto is characterized by warmer temperatures, with averages reaching 25°C (78°F) and highs peaking at 35°C (96°F). The month experiences significant humidity at 85% and considerable rainfall, totaling 174 mm (6.8 in) over 17 days. In contrast, October offers a more temperate climate, with a lower minimum temperature of 15°C (59°F) and an average of 26°C (79°F), but it can soar to a scorching 41°C (105°F) on particularly hot days. October also sees reduced precipitation at 110 mm (4.3 in) over just 11 days, along with a much drier atmosphere, as humidity drops to around 35%. For more detailed information, visit Sao Jose do Rio Preto weather in October.
In January, Sao Jose do Rio Preto experiences warmer temperatures, with a minimum of 19°C (66°F) and maximum highs reaching up to 35°C (96°F). The month is characterized by significant rainfall, averaging 174 mm (6.8 in) over about 17 days and high humidity levels of 85%. In contrast, November sees slightly cooler temperatures, with a minimum of 13°C (56°F) and a maximum of 36°C (97°F), but with less rainfall at 163 mm (6.4 in) over 16 days and a lower humidity of 65%. For more detailed information about November's climate, you can check Sao Jose do Rio Preto weather in November.
January and December in Sao Jose do Rio Preto present similar overall temperatures, with both months having an average of 25°C (78°F). However, January tends to be slightly warmer at night, with a minimum temperature of 19°C (66°F) compared to December's 17°C (62°F). Precipitation levels are nearly identical, with January receiving 174 mm (6.8 in) over 17 days and December having 171 mm (6.7 in) over 19 days. Humidity is higher in January at 85%, whereas December maintains a more comfortable 80%. For more details, you can check the Sao Jose do Rio Preto weather in December.
January in Sao Jose do Rio Preto presents a vibrant mix of warmth and humidity, setting it apart from other months of the year. With the average temperature hovering around 25°C (78°F), residents and visitors alike can enjoy tropical days, although the month experiences significant rainfall, making it one of the wetter periods with 17 days of precipitation. This blend of high humidity—averaging 85%—and warmth creates a lush atmosphere, while the frequent showers nurture the region’s stunning landscapes. For a deeper dive into how January weather compares with other months, explore Sao Jose do Rio Preto Climate.