Last updated: August 21, 2025
In December, Santana de Parnaíba, Brazil experiences a tropical climate characterized by warm temperatures and significant rainfall. The maximum temperature can soar to a sweltering 34°C (93°F), while the average temperature remains a comfortable 22°C (72°F), dipping to a mild minimum of 12°C (54°F) during cooler nights. This month sees an average precipitation amount of 149 mm (5.9 in) over approximately 20 days, contributing to the region's lush greenery. With humidity levels reaching 80%, it's advisable for visitors to stay hydrated and prepared for occasional showers while enjoying the vibrant beauty of this historic town.
In December, Santana de Parnaíba experiences comfortable yet warm temperatures, making it a delightful time for outdoor activities. With a minimum temperature of 12°C (54°F) and an average of 22°C (72°F), the weather is mild and inviting. The region reaches a maximum of 34°C (93°F), mirroring the warmth seen in previous months like January and February, which record their highest peaks around the same range. December's temperatures reflect a gradual transition from the cooler early months of the year, yet they remain relatively consistent, creating a cozy atmosphere perfect for holiday celebrations. With such inviting conditions, December becomes an ideal time to explore the beauty of Santana de Parnaíba.
In December, Santana de Parnaiba experiences a notable uptick in precipitation, accumulating 149 mm (5.9 in) over approximately 20 rainy days. This marks a continuation of the wet season following the relatively dry months of May and June, which see minimal rainfall. The precipitation level in December is slightly less than the heavy rains of January and November, yet it creates a lush backdrop as the year draws to a close. This increase in rainfall enhances the vibrancy of the region's flora, inviting both locals and visitors to enjoy the lively landscape shaped by the season's patterns. The frequency of rain during this month underscores the city's transition into its peak period of moisture, paving the way for an ecologically rich environment.
In December, Santana de Parnaíba experiences a humidity level of 80%, marking a noticeable increase from the lower levels observed in the preceding months. This month is characterized by a gradual rise in humidity, which begins to climb after hitting a low of 50% in October. Following the drier summer months of August and September, where humidity dipped to 65% and 58% respectively, December signals a return to more humid conditions typical of the region's climate. This shift indicates the onset of the rainy season, as humidity levels gradually increase from the more arid months of late spring to a more humid summer, aligning with the general trend of higher humidity prevalent during the early months of the year.
In December, Santana de Parnaíba experiences a UV Index of 16, placing it once again in the extreme exposure category with a rapid burn time of just 10 minutes. This notable level of UV radiation follows a year characterized by consistently high readings, particularly in the peak months of January through November, where indices rarely dipped below 15. With the UV Index remaining elevated throughout the year, it's vital for residents and visitors alike to stay vigilant about sun protection. To learn more about the UV Index trends in the area, visit Santana de Parnaiba UV Index.
UV Risk Categories
December in Santana de Parnaíba, Brazil, shines brightly with an impressive 305 hours of sunshine, marking it as one of the sunniest months of the year. As the year comes to a close, the city transitions from a steady pattern of moderate sunshine, peaking in March with 307 hours, but consistently boasting high levels throughout the summer months. The rhythmic dance of sunlight shows a slight decline from March onward, yet December’s abundant light suggests a return to warmth and vibrancy before the year ends. This trend highlights not only the allure of tropical Brazilian summers but also the importance of sunshine in fostering a lively atmosphere during the festive holiday season.
In Santana de Parnaíba, Brazil, December sees a 34% chance of sunny weather, marking a slight improvement compared to the earlier months of the year. While January kicks off with a low 13% chance, the likelihood gradually increases through February and April, peaking in July with an impressive 58%. After this sunny peak, the probability dips again, with November showcasing a 33% chance before stabilizing at 34% in December. This trend suggests that while the year wraps up, those anticipating sunshine can still hold out hope for some radiant days amidst the seasonal ebb and flow of weather.
In Santana de Parnaíba, Brazil, the duration of daylight exhibits a distinct seasonal rhythm, peaking at 13 hours in January and December. As the year unfolds, daylight gradually diminishes, with April marking a notable decline to 11 hours, and reaching its low of 10 hours during the mid-year months of May, June, and July. However, as spring transitions to summer, daylight begins to extend once more, climbing back to 11 hours in August and returning to 12 hours in October. This cyclical pattern not only enhances the region's vibrant atmosphere but also invites residents and visitors alike to embrace the beauty of longer days at both the beginning and end of the year.
In December, Santana de Parnaiba experiences a gentle breeze, with average wind speeds reaching 3.2 m/s (7 mph). This marks a slight dip from the more vigorous winds seen in the preceding months, particularly from September to November, when speeds consistently hovered around 3.4 to 3.6 m/s (8 mph). The trend suggests a gradual transition towards calmer conditions as the year comes to a close, providing a serene backdrop for both the vibrant holiday celebrations and the natural beauty of the region. Overall, December's winds offer a blend of mildness and activity, perfect for enjoying the outdoors while feeling the soft embrace of the seasonal shift.
Weather in Santana de Parnaiba varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Santana de Parnaiba, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January share similar temperature ranges, with both months experiencing maximum highs of 34°C (93°F). However, January tends to feel slightly warmer, with a minimum temperature of 15°C (59°F) compared to December's 12°C (54°F). While December has an average temperature of 22°C (72°F), January's average is just a degree higher at 23°C (74°F). In terms of precipitation, January sees an increase in total rainfall, amounting to 175 mm (6.9 in) over 19 days, while December has 149 mm (5.9 in) spread across 20 days. Additionally, January's humidity levels rise to 88%, making it a more humid month compared to December's 80%. For a detailed look at the weather specifics, check out Santana de Parnaiba weather in January.
In December, the weather features a warm temperature range with a minimum of 12°C (54°F) and a maximum of 34°C (93°F), leading to an average of 22°C (72°F). The month experiences considerable rainfall, accumulating 149 mm (5.9 in) over approximately 20 days and a humidity level of 80%. Conversely, February sees slightly warmer temperatures, with a minimum of 15°C (59°F) and a maximum reaching 35°C (95°F), while maintaining a similar average of 22°C (73°F). Precipitation increases marginally to 159 mm (6.3 in) over 17 days, and humidity rises to 88%. For a more detailed look at February conditions, visit Santana de Parnaiba weather in February.
In December, the weather is characterized by temperatures ranging from a minimum of 12°C (54°F) to a maximum of 34°C (93°F), with an average temperature of 22°C (72°F). This month sees a significant amount of precipitation, totaling 149 mm (5.9 in) over 20 days, and the humidity levels are quite high at 80%. In contrast, March features slightly warmer temperatures with a minimum of 13°C (56°F) and a maximum of 33°C (91°F), while maintaining a similar average of 22°C (73°F). Precipitation in March is lower at 129 mm (5.1 in), occurring over 15 days, and the humidity increases to 87%. For more details about the weather in March, you can check Santana de Parnaiba weather in March.
The weather in December is characterized by warmer temperatures, with average highs reaching 34°C (93°F) and more frequent precipitation, totaling 149 mm (5.9 in) over 20 days. In contrast, April presents milder conditions, featuring an average high of 31°C (88°F) and significantly less rainfall of 54 mm (2.1 in) over just 7 days. While December holds a humidity level of 80%, April is slightly higher at 84%, indicating a more humid atmosphere as spring approaches. For more details on the weather during this month, check out Santana de Parnaiba weather in April.
In December, temperatures in Santana de Parnaíba are notably warmer, ranging from a minimum of 12°C (54°F) to a maximum of 34°C (93°F), with an average of 22°C (72°F). The month experiences significant rainfall, with precipitation totaling 149 mm (5.9 in) over 20 days, contributing to a high humidity level of 80%. In contrast, May brings a cooler climate, where temperatures drop to a minimum of 4°C (39°F) and peak at 30°C (86°F), averaging 18°C (65°F). Rainfall is considerably less in May, with just 46 mm (1.8 in) over 5 days, and humidity remains relatively similar at 79%. For more detailed information, you can check Santana de Parnaiba weather in May.
December and June present contrasting weather conditions. In December, temperatures range from a mild 12°C (54°F) to a hot 34°C (93°F), with an average of 22°C (72°F). This month sees significant rainfall, totaling 149 mm (5.9 in) over approximately 20 days, contributing to a high humidity level of 80%. In contrast, June is cooler, with temperatures varying from a minimum of 8°C (47°F) to a maximum of 27°C (82°F) and an average of 18°C (64°F). Rainfall in June is much lighter, at 46 mm (1.8 in) over just 5 days, and the humidity is slightly lower at 77%. For more detailed insights, you can check Santana de Parnaiba weather in June.
When comparing the weather in December and July, notable differences emerge. December experiences much warmer temperatures, with minimums around 12°C (54°F) and maximums reaching up to 34°C (93°F), while July is significantly cooler, with temperatures ranging from a minimum of 1°C (35°F) to a maximum of 29°C (84°F). Additionally, December sees substantially more rainfall, averaging 149 mm (5.9 in) over 20 days, compared to July's mild 24 mm (0.9 in) over just 2 days. Furthermore, December has higher humidity levels at 80%, whereas July's humidity is lower at 72%. For more information on the specifics of July weather, visit Santana de Parnaiba weather in July.
December and August present contrasting weather conditions. December boasts warmer temperatures, with minimums around 12°C (54°F) and averages rising to 22°C (72°F), while reaching a maximum of 34°C (93°F). In terms of precipitation, December is considerably wetter, featuring about 149 mm (5.9 in) over approximately 20 days, coupled with higher humidity levels of 80%. In contrast, August exhibits cooler weather, with minimum temperatures dropping to 6°C (42°F) and an average of 17°C (63°F), peaking at 32°C (89°F). Precipitation in August is significantly lower at 55 mm (2.2 in), occurring over just 6 days, and humidity is more moderate at 65%. For more details on the weather in August, you can check Santana de Parnaiba weather in August.
When comparing the weather in December and September, December tends to be warmer with average temperatures around 22°C (72°F) and a maximum of 34°C (93°F). In contrast, September has a slightly cooler average temperature of 20°C (69°F), with highs reaching 35°C (95°F). Another significant difference is in precipitation; December sees much higher rainfall, with 149 mm (5.9 in) over 20 days, compared to just 38 mm (1.5 in) over 6 days in September. Additionally, December's humidity level is notably higher at 80%, making it feel more humid than September's 58%. For more information, visit Santana de Parnaiba weather in September.
When comparing the weather in December and October, we see clear distinctions in temperature and precipitation patterns. December tends to be slightly warmer, with average temperatures reaching 22°C (72°F) and maximums peaking at 34°C (93°F). In contrast, October averages around 21°C (70°F) but can see maximums as high as 37°C (99°F). Although both months experience rainfall, December has more notable precipitation, averaging 149 mm (5.9 in) over 20 days, while October records 115 mm (4.5 in) across 15 days. Additionally, December is characterized by higher humidity at 80%, compared to October's more comfortable 50%. For more detailed information, you can check Santana de Parnaiba weather in October.
In December, temperatures in Santana de Parnaiba range from a minimum of 12°C (54°F) to a maximum of 34°C (93°F), with an average of 22°C (72°F). This month experiences higher precipitation levels at 149 mm (5.9 in) over approximately 20 days and humidity levels rise to about 80%. In contrast, November typically sees slightly cooler temperatures, with a minimum of 11°C (52°F) and a maximum of 35°C (95°F), along with an average temperature of 21°C (69°F). November also features lower precipitation at 119 mm (4.7 in) over just 14 days and a lower humidity of 75%. For more detailed insights, you can check Santana de Parnaiba weather in November.
In December, Santana de Parnaíba experiences a vibrant transformation as it welcomes the summer season, with noticeably warmer temperatures and increased humidity that set it apart from other months. This time of year sees an average temperature that invites both locals and visitors to enjoy outdoor activities, despite the significant rainfall that often accompanies the holiday season. With an average of 20 days of precipitation, December can be quite wet, adding a refreshing touch to the air. As you explore the region, you'll find that the lush landscapes thrive under the balance of warmth and rain, making it a unique and engaging time to experience the local culture. For more on how this month fits into the broader climatic context, check out Santana de Parnaiba Climate.