December Weather in Palmas, Brazil

Last updated: August 21, 2025

In Palmas, Brazil, December ushers in a tropical warmth characterized by a maximum temperature of 31°C (88°F) and a comfortable average of 20°C (68°F). However, cooler nights can dip to a surprising minimum of 7°C (46°F), creating a pleasant range for both daytime explorations and evening relaxation. This month also brings considerable precipitation, totaling 156 mm (6.1 in) over approximately 16 days, leading to an indulgent humidity level of 88% that enhances the lush landscape. As temperatures rise and the rains refresh, December is a vibrant time to experience the rich natural beauty of Palmas.

December Temperature in Palmas

In Palmas, Brazil, December marks the transition into warmer summer days, with temperatures peaking at a maximum of 31°C (88°F). As the month unfolds, residents and visitors enjoy a comfortable average temperature of 20°C (68°F), making it an ideal time for outdoor adventures and festive celebrations. The minimum temperature hovers around 7°C (46°F), ensuring evenings remain pleasantly cool. This consistent warmth signifies a notable trend throughout the year, as December maintains a vibrant atmosphere reminiscent of the preceding months, with slight fluctuations but an unmistakable embrace of summer's approach. With such inviting weather, December in Palmas is perfect for those looking to bask in the sun while exploring the city's lush landscapes.

December Weather in Palmas: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Palmas, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Palmas, December typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec696867625756555764646668
Data source: Temperature data for Palmas generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Palmas

December in Palmas, Brazil, sees a transition into one of its wetter months, characterized by an average precipitation of 156 mm (6.1 in) over approximately 16 days of rainfall. This marks a shift from the drier spell in mid-year, particularly July, which typically experiences only 54 mm across just 6 days. Compared to the preceding months, December offers a notable uptick in precipitation, following November's 148 mm and setting the stage for the heightened rainfall often expected in January. Despite its increase, December's rainfall remains more moderate than January's peak, creating a dynamic end to the year that highlights Palmas' tropical climate and its distinct wet and dry seasons.

December Precipitation Trends in Palmas

The chart displays monthly precipitation patterns in Palmas, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Palmas, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec19513712571145136549398188148156
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Palmas

As December unfolds in Palmas, Brazil, residents experience a significant uptick in humidity, reaching a remarkable 88%. This marks a noticeable rise from the drier months of July and August, when humidity levels dipped to their lowest at 77% and 70%, respectively. The trend throughout the year reveals an overall pattern of fluctuating humidity, peaking in December after consistently high levels from late spring through autumn. As the calendar turns towards the new year, the increased moisture in the air during December can bring both a lush vibrancy to the surrounding landscapes and a muggy atmosphere that many have come to expect in the tropical climate of Palmas.

December Average Humidity in Palmas

This chart illustrates the average monthly humidity levels in Palmas, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Palmas is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%81%82%84%86%84%77%70%75%76%84%88%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Palmas

In December, Palmas, Brazil, continues to experience a remarkably high UV Index of 15, classified as extreme. This level of UV radiation aligns with the trend seen in recent months, as both January and November recorded the same intense exposure, demanding diligent sun protection measures. Notably, the consistent burn time of just 10 minutes reinforces the urgent need for caution, particularly for those spending extended time outdoors. As daylight hours remain ample, residents and visitors alike should remain vigilant and informed while enjoying the tropical sun. For more detailed information on UV levels, visit Palmas UV Index.

Maximum UV Index Levels in Palmas for December

The chart shows the monthly maximum UV Index (UVI) for Palmas in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Palmas typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec15151311766811141515
Data source: Palmas December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

December Sunshine in Palmas

In December, Palmas, Brazil, basks in a remarkable 334 hours of sunlight, making it the sunniest month of the year. This vibrant increase in daylight aligns with a general trend of escalating sunshine hours as the year progresses, particularly peaking in November with 308 hours. After the cooler, less sunlit months of mid-year, residents and visitors alike can revel in the delightful warmth and brightness, boosting the allure of outdoor activities and festive celebrations. This climax of sunshine not only enhances the beauty of the local landscape but also invigorates the spirit of the community, truly marking December as a radiant close to the year.

Monthly Sunshine Duration in Palmas: December Highlighted

The December sunshine duration represents the total number of hours Palmas experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec226h294h288h277h239h226h274h275h277h264h308h334h
Data source: Palmas December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Palmas During December

In December, Palmas, Brazil, enjoys a promising 61% chance of sunny weather, making it one of the sunniest months of the year. This represents a notable increase from the preceding fall months—particularly October, which sees only a 29% chance of sunshine. As the year draws to a close, the trend clearly shifts towards brighter days, with December outshining both November's 50% and the varied chances seen earlier in the year. With the warm summer season approaching, visitors can look forward to plenty of sunshine, setting the stage for enjoyable outdoor activities and festive celebrations in this vibrant city.

Percentage of Sunny Days in December in Palmas

The chart illustrates the percentage of sunny days in Palmas throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Palmas experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec18%54%45%54%63%40%63%57%49%29%50%61%
Data source: Palmas December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Palmas in December

In Palmas, Brazil, the December days bring a delightful 13 hours of daylight, marking a peak in sunlight that's sustained from November. As the year progresses from the sunniest months of January and November, which both enjoy 13 hours, daylight begins to wane through the transition to April, where it dips to 11 hours. The trend continues through the cooler months of May to July, settling at a steady 10 hours. However, as spring approaches, daylight hours gradually increase once again, reaching 11 hours by August and returning to 12 hours in the vibrant months of October and November. Thus, December not only encapsulates the essence of longer days but also signals a return to brighter horizons after the cyclical ebb of light.

Average Daylight Hours in Palmas for December

The chart illustrates the variation in daylight duration in Palmas throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec13h 34m12h 57m12h 12m11h 25m10h 47m10h 29m10h 39m11h 12m11h 56m12h 43m13h 24m13h 45m
Data source: Palmas daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Palmas

As December rolls into Palmas, Brazil, the wind picks up slightly, averaging 3.1 m/s (7 mph). This gentle breeze marks a transition from the lighter winds of late spring and early summer, where January and February experienced their mildest currents at 3.4 m/s (8 mph) and 2.8 m/s (6 mph), respectively. Through the months, wind speeds reveal a subtle yet notable trend: a gradual increase peaking in August at 3.6 m/s (8 mph), before settling again in December. This consistent pattern not only enhances the tropical feel of the region but also makes it a delightful destination for wind enthusiasts looking to embrace the coastal charm of Palmas.

Average December Wind Speed in Palmas

The chart displays monthly wind speed patterns in Palmas, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.42.82.83.02.73.13.23.63.43.33.03.1 m/s
Data source: Palmas December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Palmas Compares to Other Months

Weather in Palmas varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Palmas, focusing on differences in temperature, rainfall, humidity, and UV levels.

December and January exhibit relatively warm weather, with both months showcasing an average temperature of around 20°C (68°F). However, January tends to be slightly warmer at night, with a minimum temperature of 12°C (54°F) compared to December's 7°C (46°F). Precipitation is noticeably higher in January, with 195 mm (7.7 in) falling over 18 days, compared to December's 156 mm (6.1 in) over 16 days. The humidity remains high in both months, with January experiencing a marginally lower humidity level of 85%, compared to December’s 88%. For a detailed look at January’s weather patterns, check out Palmas weather in January.

December and February exhibit similar temperature ranges, with both months averaging around 20°C (68°F) and reaching maximums of 31°C (88-89°F). However, December tends to be slightly wetter, receiving 156 mm (6.1 in) of precipitation over 16 days, while February sees a bit less rainfall at 137 mm (5.4 in) across 17 days. Additionally, humidity levels are higher in December at 88%, compared to February's 81%. For more detailed insights, you can check Palmas weather in February.

In December, temperatures in Palmas range from a comfortable minimum of 7°C (46°F) to a warm maximum of 31°C (88°F), with an average of 20°C (68°F). This month usually experiences significant precipitation, totaling 156 mm (6.1 in) over 16 days, along with high humidity levels at 88%.

In contrast, March generally has slightly warmer nights with a minimum temperature of 10°C (50°F) and a similar maximum of 30°C (86°F), while the average temperature is slightly lower at 19°C (67°F). Precipitation also decreases to 125 mm (4.9 in) over 15 days, and humidity drops to a more comfortable 82%. For a comprehensive overview, check out Palmas weather in March.

December and April showcase distinct weather patterns. In December, temperatures range from a minimum of 7°C (46°F) to a maximum of 31°C (88°F), with an average of 20°C (68°F). This month experiences significant precipitation, averaging 156 mm (6.1 in) over 16 days, alongside high humidity levels at 88%. In contrast, April presents milder conditions, with a minimum temperature of 3°C (37°F), an average of 17°C (63°F), and a maximum of 27°C (80°F). Precipitation drops to 71 mm (2.8 in) over just 7 days, and humidity is slightly lower at 84%. For more details on April weather, visit Palmas weather in April.

In comparing the weather between December and May, a distinct contrast can be observed. December boasts warmer temperatures with a minimum of 7°C (46°F) and average highs reaching up to 31°C (88°F), while May experiences cooler conditions, with temperatures ranging from a minimum of 0°C (33°F) to a maximum of 26°C (80°F). Additionally, December is characterized by higher humidity at 88% and more rainy days—16 in total—resulting in significant precipitation of 156 mm (6.1 in). In contrast, May enjoys slightly lower humidity at 86% and fewer rainy days, accumulating 145 mm (5.7 in) over just 10 days. For more details on the climatic conditions during this month, you can check Palmas weather in May.

In December, the weather is considerably warmer, with average temperatures ranging from a minimum of 7°C (46°F) to a maximum of 31°C (88°F). The month experiences frequent rainfall, totaling 156 mm (6.1 in) over approximately 16 days, accompanied by high humidity levels at 88%. In contrast, June sees a significant drop in temperatures, with averages from -3°C (27°F) to 25°C (77°F). This month receives slightly less rainfall, with 136 mm (5.4 in) spread over 10 days, and the humidity is somewhat lower at 84%. For more details, explore Palmas weather in June.

In December, the weather is generally warmer and more humid, with temperatures ranging from a minimum of 7°C (46°F) to a maximum of 31°C (88°F) and an average of 20°C (68°F). This month sees significant precipitation, with about 156 mm (6.1 in) of rain over approximately 16 days, contributing to a high humidity level of 88%.

In contrast, July brings much cooler temperatures, with a minimum of -4°C (25°F), an average of 13°C (55°F), and a maximum of 25°C (77°F). The precipitation is considerably lower at 54 mm (2.1 in) over just 6 days, leading to a lower humidity level of 77%. Overall, December contrasts sharply with July, showcasing the region's varied climate. For more detailed insights, visit Palmas weather in July.

In December, the weather is significantly warmer compared to August, with temperatures ranging from a minimum of 7°C (46°F) to a maximum of 31°C (88°F), averaging around 20°C (68°F). The humidity is notably high at 88%, and there are 16 days of rainfall totaling 156 mm (6.1 in). In contrast, August experiences cooler temperatures, with a minimum of -2°C (29°F) and a maximum of 29°C (84°F), averaging 14°C (57°F). Precipitation is lower in August, with only 93 mm (3.6 in) spread over 7 days, and the humidity is more comfortable at 70%. For more detailed information about the weather in August, you can visit Palmas weather in August.

When comparing the weather between December and September, it's evident that both months experience warm temperatures, with highs reaching up to 31°C (88°F). However, December generally has a higher average temperature of 20°C (68°F) compared to September's 18°C (64°F). Precipitation is also more frequent in December, with 156 mm (6.1 in) over 16 days, while September sees considerably less, with 98 mm (3.9 in) over just 9 days. Additionally, December has a higher humidity level at 88%, making it feel more sultry than the drier September, which has a humidity of 75%. For more detailed weather insights, check out Palmas weather in September.

December typically sees slightly higher temperatures compared to October, with minimums around 7°C (46°F) and an average of 20°C (68°F), while October has a minimum of 5°C (42°F) and an average of 18°C (64°F). Interestingly, the maximum temperature in December peaks at 31°C (88°F), whereas October can get a bit warmer at 32°C (90°F). Precipitation is also notable, with December receiving 156 mm (6.1 in) over 16 days, compared to October's higher total of 188 mm (7.4 in) during the same number of days. Additionally, December experiences higher humidity levels at 88%, while October's humidity is comparatively lower at 76%. For more details, you can check Palmas weather in October.

In comparing the weather between November and December, December tends to be slightly warmer, with average temperatures ranging from a minimum of 7°C (46°F) to a maximum of 31°C (88°F), compared to November's minimum of 9°C (48°F) and maximum of 30°C (86°F). Both months experience significant rainfall, but December sees more precipitation at 156 mm (6.1 in) over 16 days, whereas November has 148 mm (5.8 in) over 12 days. Additionally, December's humidity is higher at 88%, compared to November's 84%. For more insights on November's climate specifics, you can check out Palmas weather in November.

Compare Palmas's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Palmas

As December settles in Palmas, the weather takes on a unique character that sets it apart from the other months. With temperatures reaching a maximum of 31°C and a humid atmosphere boasting 88% humidity, the month feels warm and tropical, inviting both residents and visitors to enjoy the more vibrant outdoor life. However, December also brings along an increased likelihood of rain, with precipitation occurring on 16 days and totaling 156 mm, making it one of the wetter months of the year. This combination of heat and rainfall creates a lush, green landscape and a lively atmosphere, differing significantly from the cooler, drier months that precede it. To learn more about the weather patterns throughout the year, visit Palmas Climate.