Last updated: August 21, 2025
Ribeirao Preto experiences a vibrant December, characterized by warm to hot temperatures, with a maximum reaching 35°C (95°F) and an average of 25°C (77°F). As summer sets in, the city welcomes humidity levels around 80%, creating a muggy atmosphere. Rainfall is a regular visitor this month, with an average of 171 mm (6.7 in) spread over 17 days, nurturing the vibrant landscapes that define the region. Whether you're seeking sun-soaked days or brief tropical showers, December in Ribeirao Preto promises a dynamic weather experience.
In Ribeirao Preto, Brazil, December brings a delightful mix of warmth and vibrancy, as temperatures range from a minimum of 15°C (60°F) to a maximum of 35°C (95°F), settling at a comfortable average of 25°C (77°F). This transitional month signals the peak of the warm season, subtly mirroring the January and February climate but slightly easing off from the higher extremes seen earlier in the year. As the year draws to a close, residents and visitors can savor the warm sunshine, making it an ideal time for outdoor activities and festive celebrations. With steady temperatures and abundant sunshine, December in Ribeirao Preto embodies the warmth of Brazilian summer, inviting all to embrace its charm.
In December, Ribeirao Preto experiences its climatic crescendo, characterized by significant rainfall that reaches an average of 171 mm (6.7 in), mirroring the precipitation typically seen in January. This month stands out with the highest number of rainy days in the year, totaling 17, indicating a marked increase in humidity and reliance on consistent rainfall as the region transitions through its wet season. The pattern contrasts sharply with the dry winter months of June and July, when rainfall dwindles to negligible levels. December’s humid embrace not only nourishes the landscape but also signals the arrival of summer, inviting both the vibrant energy of life and the occasional disruption of storms as the year comes to a close.
In Ribeirao Preto, Brazil, December marks a transition as humidity levels begin to rise again, reaching 80% after a notably dry period in the months prior. The trend throughout the year reveals a distinct shift; humidity peaks at 87% in February and steadily declines to a low of 35% in October. However, as the year wraps up, humidity levels rebound significantly from November's 65%. This cyclical pattern highlights the region's fluctuating moisture levels, capturing the essence of the Brazilian climate where wetness returns, bringing a refreshing end to the dry spells of late spring and early summer.
In December, Ribeirao Preto experiences a highly intense UV Index of 16, categorizing it as extreme and resulting in a quick burn time of just 10 minutes. This trend reflects the city's propensity for strong UV radiation during the summer months, with both January and February also neck-and-neck at the same extreme level. Following a gradual decrease in UV intensity from March to June, the index rises again in the latter half of the year, peaking in December alongside its summer counterparts. Such consistent and elevated UV levels underscore the importance of sun protection measures; residents and visitors alike should prioritize their skin's safety this month. For further insights on the UV Index throughout the year, check out Ribeirao Preto UV Index.
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In Ribeirao Preto, Brazil, December shines brightly with 316 hours of sunshine, continuing the city's trend of abundant light as the year draws to a close. With only a slight dip from November's similarly high total, this month reflects a consistent ambiance of warmth and vibrancy that characterizes the Brazilian summer. Observing the year, the trend reveals increasing sunshine hours peaking in March at 327 hours, followed by a gradual decline through the year. However, December's sunlight hints at lingering warmth, making it an ideal time for outdoor enjoyment and festive activities, as residents soak in the radiant atmosphere that this vibrant city offers during the holiday season.
In Ribeirao Preto, Brazil, December offers a 51% chance of sunny weather, reflecting a notable shift from the cooler months preceding it. This increase in sunshine likelihood is part of a larger trend as the year progresses towards the summer, where the chances of clear skies steadily rise from just 16% in January to a peak of 83% in July. Following the drier month of April, when the sun shines 65% of the time, the pleasant weather in December sets the stage for the sunny extravaganza of the summer months ahead. With December balancing moderate sunshine alongside festive cheer, it creates an inviting atmosphere for both locals and visitors seeking to enjoy the warmth of the Brazilian summer.
In Ribeirao Preto, Brazil, the daylight duration experiences a fascinating rhythm throughout the year, peaking at 13 hours in January and December. Following the summer months, daylight gradually diminishes, reaching its shortest at 10 hours during June and July. As the year unfolds, a pattern emerges with 11 hours of daylight marking the transition into the cooler months of April through October, before it returns to 12 hours again in October and November. This predictable cycle of light not only influences the local climate but also sets the stage for various seasonal activities, allowing residents to bask in the Warm Brazilian sun or enjoy the cooler evenings as daylight wanes.
As December settles in Ribeirão Preto, the wind whispers at an average speed of 2.3 m/s (5 mph), a slight dip from the slightly breezier 2.5 m/s in November. This month marks the end of a year characterized by gradually increasing winds, with August and September showcasing the peak gusts of 2.7 m/s and 2.8 m/s respectively. Generally, the wind speeds have been on the rise as the seasons progressed, with more pronounced breezes appearing in the latter half of the year. As summer approaches, the calming December winds provide a refreshing transition, inviting residents and visitors to enjoy the mild climate and the spirited atmosphere of the holiday season.
Weather in Ribeirao Preto varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Ribeirao Preto, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between December and January, we see subtle differences that can influence daily life and activities. December features a minimum temperature of 15°C (60°F), while January slightly increases to 16°C (61°F). The average temperatures remain steady at 25°C (77°F) for both months. However, January edges out December with a maximum temperature reaching 36°C (97°F) compared to December’s 35°C (95°F). Precipitation levels are quite similar, with December recording 171 mm (6.7 in) over 17 days and January almost mirroring that with 170 mm (6.7 in) over 16 days. Notably, January experiences a higher humidity level at 85%, compared to December's 80%. For more specific insights into the January weather, you can check out Ribeirao Preto weather in January.
In December, the weather features temperatures ranging from a minimum of 15°C (60°F) to a maximum of 35°C (95°F), with an average of 25°C (77°F). The month experiences significant precipitation, totaling 171 mm (6.7 in) over 17 days, coupled with a humidity level of 80%. In contrast, February sees slightly warmer conditions, with minimum temperatures of 17°C (63°F) and maximums reaching 36°C (97°F), while maintaining the same average of 25°C (77°F). Precipitation decreases to 151 mm (5.9 in) over 16 days, although humidity rises to 87%. For more specific details on the weather in February, visit Ribeirao Preto weather in February.
In December, temperatures in Ribeirao Preto range from a minimum of 15°C (60°F) to a maximum of 35°C (95°F), with an average of 25°C (77°F). The month is characterized by 171 mm (6.7 in) of precipitation over 17 days, combined with high humidity levels averaging around 80%. In contrast, March experiences similar temperature patterns, with minimums and averages remaining the same, but a slight decrease in the maximum to 34°C (94°F). Precipitation in March is reduced to 99 mm (3.9 in) over 14 days, and humidity increases slightly to 86%. For a more detailed look at the weather in March, you can check this link: Ribeirao Preto weather in March.
In December, the weather tends to be hotter and more humid compared to April, with temperatures ranging from a minimum of 15°C (60°F) to a maximum of 35°C (95°F) and an average of 25°C (77°F). This month also experiences a significant amount of rainfall, with 171 mm (6.7 in) of precipitation over 17 days, contributing to the higher humidity level of 80%.
In contrast, April offers slightly cooler temperatures, with a minimum of 12°C (54°F), an average of 23°C (74°F), and a maximum of 33°C (92°F). The precipitation in April is much lower at 55 mm (2.2 in) and occurs over only 6 days, making it a drier month overall with a humidity level of 79%. For more detailed information on April weather, you can visit Ribeirao Preto weather in April.
December and May present quite different weather patterns. In December, temperatures range from a minimum of 15°C (60°F) to a maximum of 35°C (95°F), with an average of 25°C (77°F). This month also experiences significant rainfall, with 171 mm (6.7 in) over approximately 17 days and high humidity at 80%. In contrast, May sees cooler temperatures, with a minimum of 5°C (41°F) and a maximum of 32°C (90°F), averaging around 21°C (69°F). The precipitation drops drastically to 28 mm (1.1 in) over just 4 days, and humidity levels are lower at 68%. For more information, check out Ribeirao Preto weather in May.
December and June present distinctly different weather patterns. In December, temperatures range from a comfortable 15°C (60°F) at night to a sweltering 35°C (95°F) during the day, leading to an average of 25°C (77°F). This month is also characterized by high humidity at 80% and significant rainfall, totaling 171 mm (6.7 in) over 17 days, making it one of the wettest times of the year. In contrast, June offers cooler conditions with temperatures dipping to a minimum of 8°C (46°F) and peaking at 31°C (88°F), averaging around 20°C (69°F). This month enjoys much drier weather, with only 7 mm (0.3 in) of rain over just a single day and lower humidity levels of 60%. For a detailed look at June's climate, you can check out Ribeirao Preto weather in June.
December and July feature starkly contrasting weather patterns. In December, temperatures range from a minimum of 15°C (60°F) to a scorching maximum of 35°C (95°F), with an average of 25°C (77°F). The month also brings significant rainfall, with around 171 mm (6.7 in) over 17 days and a high humidity level of 80%. In contrast, July experiences much cooler temperatures, with a minimum of 2°C (37°F) and a maximum of 31°C (88°F), averaging 19°C (67°F). This month typically sees very little rain, only about 11 mm (0.4 in), and boasts dry conditions with no rainy days and lower humidity at 57%. For a more detailed look at temperatures, check out Ribeirao Preto weather in July.
In comparing the weather between December and August, December presents a much warmer picture, with average temperatures ranging from a minimum of 15°C (60°F) to a maximum of 35°C (95°F). Conversely, August is cooler, with temperatures ranging from a minimum of 8°C (46°F) to an average of 21°C (71°F). While both months share the same maximum temperature of 35°C, December experiences significantly higher humidity at 80% compared to August's 48%. Additionally, December sees more rainfall, with 171 mm (6.7 in) over 17 days, whereas August only has 18 mm (0.7 in) across just 3 days. For a closer look at the specifics of August weather, check out Ribeirao Preto weather in August.
In comparing the weather of December and September, December presents a milder temperature range with a minimum of 15°C (60°F) and an average of 25°C (77°F), while September boasts slightly cooler temperatures, with a minimum of 12°C (53°F) and the same average of 25°C (78°F). However, September experiences a higher maximum temperature of 38°C (101°F) compared to December's 35°C (95°F). Precipitation is significantly more prevalent in December, with 171 mm (6.7 in) falling across 17 days, whereas September is much drier, recording only 28 mm (1.1 in) over just 3 days. The humidity is also noticeably higher in December at 80%, compared to September’s 41%. For a more detailed look at September weather, visit Ribeirao Preto weather in September.
In comparing the weather of December and October, both months share a similar minimum temperature of 15°C (60°F) and an average temperature around 25°C (77°F). However, October experiences hotter days with maximum temperatures reaching up to 39°C (102°F), while December's max is lower at 35°C (95°F). Precipitation is more frequent in December, with 171 mm (6.7 in) falling over 17 days, compared to October's 121 mm (4.8 in) over 12 days. Additionally, December has a higher humidity level at 80%, in contrast to October's relatively low humidity of 35%. For more details on October weather, you can check Ribeirao Preto weather in October.
In comparing the weather between November and December, we see a few notable differences. December typically experiences warmer temperatures, with a range from a minimum of 15°C to a maximum of 35°C, while November's temperatures are slightly cooler, ranging from 13°C to 37°C. Precipitation increases in December, with 171 mm falling over 17 days compared to November's 159 mm over 14 days. Additionally, December's humidity level is higher at 80%, compared to November's 65%. This combination of increased warmth and humidity in December makes it feel more tropical than the preceding month. For more details on November's weather, you can check Ribeirao Preto weather in November.
As December settles in Ribeirão Preto, the weather transforms into a warm embrace, distinctly warmer than the preceding months. With an average temperature soaring to around 25°C (77°F) and peaks reaching a sizzling 35°C (95°F), the month invites outdoor activities despite the higher humidity levels that can touch 80%. Rainfall becomes more frequent, with nearly half of the month seeing precipitation, totaling approximately 171 mm (6.7 in). This blend of warmth and rainfall creates a lush landscape, making December a vibrant and dynamic month in Ribeirão Preto. To explore more about the climate in this charming city, check out the detailed information on Ribeirao Preto Climate.