Last updated: August 21, 2025
Experience the December weather in Caxias do Sul, Brazil, where the warm embrace of summer sets the stage for diverse climatic conditions. With maximum temperatures soaring to 35°C (95°F) and an average of 21°C (71°F), this vibrant city offers a delightful backdrop for outdoor adventures. However, be prepared for cooler nights as temperatures can dip to a minimum of 6°C (42°F). December also brings its fair share of rain, with a total precipitation of 111 mm (4.4 in) over 13 days, contributing to the lush greenery. The air is notably humid at 87%, adding to the tropical feel of the season, making it an ideal time for both exploration and relaxation.
In Caxias do Sul, Brazil, December marks the transition into the summer season, bringing a delightful warmth that captivates residents and visitors alike. With minimum temperatures around 6°C (42°F) and pleasant averages hovering at 21°C (71°F), the month sets the stage for enjoyable days. As the sun shines brightly, maximum temperatures can soar up to 35°C (95°F), reminiscent of a classic Brazilian summer. This upward trend in warmth from the cooler winter months prepares the city for vibrant outdoor activities and festive celebrations, making December a truly inviting time to experience the charm of Caxias do Sul.
In Caxias do Sul, December marks a shift in the precipitation pattern as the region experiences a notable drop, with only 111 mm (4.4 in) of rainfall recorded over 13 days. This decline follows the wetter months leading up to December, where September and May showcased the highest totals at 177 mm (7.0 in) and 175 mm (6.9 in), respectively. The trend highlights a gradual reduction in rainfall from the mid-year peak, as even November—the tail end of the rainy season—boasts a substantial 150 mm (5.9 in). With its milder December precipitation, the city prepares for the transition into the drier months ahead, offering a brief respite before the cycle begins anew.
In Caxias do Sul, Brazil, December marks a notable increase in humidity, reaching 87%, just shy of the year's peak in May at 88%. Throughout the year, humidity levels exhibit a clear seasonal trend, with the latter months typically experiencing higher moisture content. From a moderate 77% in February to 83% in November, the city witnesses a gradual rise as it transitions into summer. This escalation continues into December, contributing to the lush landscape and vibrant atmosphere of the region. Such humidity levels create a distinctive experience for both residents and visitors, enhancing the tropical feel that characterizes this picturesque Brazilian locale.
In Caxias do Sul, December heralds a return to intense sun exposure, with the UV Index soaring to 15, reflecting an extreme exposure category and a quick burn time of just 10 minutes. This peak aligns with the heightened values seen in January and February, where similar conditions put residents and visitors alike on high alert. As the year progresses, there is a noticeable decline in the UV Index, from March's 12 to April's 10, before tapering down significantly in the cooler months to a more moderate 5 in June and July. However, just as summer approaches again in December, the trend of extreme UV levels resurfaces, emphasizing the importance of sun safety measures. For detailed insights into the UV Index throughout the year, visit Caxias do Sul UV Index.
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In Caxias do Sul, Brazil, December emerges as a radiant peak of sunshine, boasting an impressive 362 hours of sunlight. This crescendo of brightness follows a consistent upward trend from the earlier months, particularly notable compared to November's 315 hours. As the year winds down, December not only outshines the preceding months but also signals a transition from the cooler, greyer days of winter, where June and July saw just 216 and 245 hours, respectively. The increase in sunshine hours throughout the year paints a vivid picture of a region embracing the warm glow of summer's arrival, making December an ideal time to bask in the joyous embrace of the sun.
In December, Caxias do Sul experiences a 56% chance of sunny weather, making it one of the more favorable months for sunshine as the year comes to a close. This probability aligns closely with the numbers from late spring and early summer, such as May (57%) and February (57%). As the end of the year approaches, the likelihood of sun slightly decreases from the peak of July, which boasts a robust 61% sunshine chance. Comparatively, December features better prospects than the preceding months, indicating a gradual warming and an increase in beautiful, bright days. While the chance of sunshine dips from the peak summer months, December still holds promise for those hoping to bask in the sun during the festive season.
December in Caxias do Sul, Brazil, ushers in the summer season with 13 hours of daylight, tying with both January and February for the longest days of the year. As the calendar year progresses, a noticeable trend emerges: daylight hours gradually decrease from March's 12 hours down to a low of 10 hours in the heart of winter (June, July, and August). However, as spring approaches, daylight begins to regain its strength, stretching back to 11 hours in August before reaching that summer peak again in December. This rhythmic ebb and flow of daylight creates a vibrant tapestry of seasonal change, enhancing the natural beauty and daily rhythms of life in Caxias do Sul.
In Caxias do Sul, December ushers in a gentle breeze, with average wind speeds reaching 2.3 m/s (about 5 mph). This is a slight decrease from the more blustery winds experienced in the mid-year months, where July and August peak at 2.6 m/s (6 mph). Notably, December presents a charming calmness as the winds soften from the consistent 2.5 m/s typical of previous months, signaling a shift towards the end of the year. This transition mirrors the overall trend throughout the year, where wind speeds nestled comfortably around 2.5 m/s, fostering a serene atmosphere ideal for outdoor festivities and gatherings as the holiday season approaches.
Weather in Caxias do Sul varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Caxias do Sul, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, temperatures in Caxias do Sul range from a minimum of 6°C (42°F) to a maximum of 35°C (95°F), with an average of 21°C (71°F). The month experiences significant rainfall, totaling 111 mm (4.4 in) over approximately 13 days, along with a high humidity level of 87%. In contrast, January sees a slight increase in temperatures, with minimums around 9°C (49°F) and maximums reaching up to 36°C (97°F), averaging 22°C (73°F). However, it is also a wetter month, with higher precipitation of 169 mm (6.6 in) spread across 15 days, though humidity decreases to 80%. For more details about January weather in Caxias do Sul, visit Caxias do Sul weather in January.
In December, the weather sees a range of temperatures from a minimum of 6°C (42°F) to a maximum of 35°C (95°F), with an average temperature of 21°C (71°F). The month experiences a significant amount of precipitation, totaling 111 mm (4.4 in) over 13 days, and the humidity is quite high at 87%. In contrast, February's weather features a slightly warmer minimum temperature of 10°C (50°F) and a maximum of 33°C (92°F), while maintaining the same average of 21°C (71°F). However, February is wetter, with 161 mm (6.3 in) of rain across 14 days and lower humidity at 77%. For more detailed insights into February's weather, you can check Caxias do Sul weather in February.
December weather is characterized by slightly warmer temperatures, with a minimum of 6°C (42°F), an average of 21°C (71°F), and a maximum reaching 35°C (95°F). The month sees substantial precipitation, totaling 111 mm (4.4 in) over 13 days, and is quite humid, with humidity levels around 87%. In contrast, March experiences a marginally cooler climate, beginning at a minimum of 8°C (46°F) and averaging 20°C (69°F), with a maximum of 34°C (94°F). While March has a higher total precipitation of 131 mm (5.2 in) over the same number of days, the humidity drops to 79%. For more details on the weather during March, check out Caxias do Sul weather in March.
When comparing the weather between December and April, there are notable differences in temperature and precipitation patterns. December typically experiences slightly higher temperatures, with a minimum of 6°C (42°F), an average of 21°C (71°F), and a maximum of 35°C (95°F). In contrast, April sees cooler conditions, with minimum temperatures of 4°C (39°F), an average of 18°C (65°F), and a maximum of 30°C (87°F). Precipitation levels are also similar, with December receiving 111 mm (4.4 in) over 13 days, while April has slightly less at 99 mm (3.9 in) over 10 days. Humidity is marginally lower in April at 83% compared to December's 87%. For more detailed insights, you can explore Caxias do Sul weather in April.
In December, Caxias do Sul experiences warmer temperatures, with an average of 21°C (71°F) and maximums reaching up to 35°C (95°F). The humidity is moderately high at 87%, and the area receives about 111 mm (4.4 in) of precipitation over 13 days, making it a relatively wet month. In contrast, May presents a cooler climate, with average temperatures around 15°C (59°F) and maximums of 29°C (84°F). Although it has a slightly higher rainfall total of 175 mm (6.9 in) over 12 days, the humidity remains comparable at 88%. For a detailed look at what to expect in May, check out Caxias do Sul weather in May.
In comparing the weather of December and June, we see significant contrasts. December boasts a much warmer climate, with temperatures ranging from a minimum of 6°C (42°F) to a maximum of 35°C (95°F), and an average of 21°C (71°F). Interestingly, it also experiences higher humidity levels at 87% and more rainfall, totaling 111 mm (4.4 in) over 13 days. On the other hand, June presents cooler temperatures, with a minimum of -2°C (29°F) and a maximum of 29°C (84°F), averaging 14°C (57°F). Although June sees slightly more precipitation at 135 mm (5.3 in), it does so over fewer days—11 in total—while maintaining a similar humidity level of 86%. For a detailed look at weather conditions specific to Caxias do Sul during this month, visit Caxias do Sul weather in June.
In December, the weather is significantly warmer, with temperatures ranging from a minimum of 6°C (42°F) to a maximum of 35°C (95°F), averaging around 21°C (71°F). The month sees substantial rainfall, with 111 mm (4.4 in) of precipitation over 13 days and high humidity levels at 87%. In contrast, July offers much cooler temperatures, boasting a minimum of -3°C (27°F) and a maximum of 28°C (83°F), with an average of only 13°C (55°F). Although July experiences slightly more precipitation at 139 mm (5.5 in) over 9 days, the humidity is lower at 82%. For more detailed information, you can check out Caxias do Sul weather in July.
When comparing the weather in December and August, it's clear that December is significantly warmer, with average temperatures reaching up to 21°C (71°F) compared to August's average of only 14°C (58°F). December also experiences higher maximum temperatures of 35°C (95°F), whereas August peaks at 31°C (89°F). In terms of precipitation, December sees more rain, with 111 mm (4.4 in) over 13 days, while August has a slightly lower total of 90 mm (3.5 in) over 8 days. Additionally, December has higher humidity at 87%, compared to August's 77%. For a closer look at August weather specifics, you can visit Caxias do Sul weather in August.
In comparing the weather of December and September, December exhibits warmer temperatures, with average highs reaching up to 35°C (95°F) compared to September's maximum of 33°C (92°F). The minimum temperatures in December also stay significantly higher, averaging at 21°C (71°F), while September sees a cooler average low of 0°C (31°F). Additionally, December experiences higher humidity levels at 87%, compared to September's 80%. While precipitation is a common theme in both months, December has less rainfall overall, with 111 mm (4.4 in) across 13 days, in contrast to September's 177 mm (7.0 in) over 12 days. For more details on September weather, you can visit Caxias do Sul weather in September.
In December, the weather showcases slightly warmer average temperatures, peaking at 21°C (71°F), compared to October's average of 18°C (65°F). Both months experience maximum temperatures of up to 35°C (95°F), but December has a higher minimum temperature of 6°C (42°F) consistent with October. Precipitation levels are lower in December, totaling 111 mm (4.4 in) across 13 rainy days, while October sees more rain, accumulating 161 mm (6.4 in) over 14 days. Humidity remains fairly high in both months, with December at 87% and October at 84%. For more details, check out Caxias do Sul weather in October.
In comparison to November, December experiences slightly warmer temperatures, with a minimum of 6°C (42°F) and an average high of 35°C (95°F), compared to November's minimum of 7°C (44°F) and a maximum of 33°C (92°F). While the average temperature in December reaches 21°C (71°F), November averages a cooler 19°C (67°F). However, December sees a decrease in overall precipitation, with 111 mm (4.4 in) falling over 13 days, compared to November's higher total of 150 mm (5.9 in) over 12 days. Humidity levels also rise slightly in December, averaging 87% compared to 83% in November. For more details about the weather during November, you can visit Caxias do Sul weather in November.
December in Caxias do Sul marks a vibrant transition into the summer season, offering a delightful mix of warmth and humidity that sets it apart from the cooler months preceding it. With average temperatures reaching a pleasant 21°C (71°F) and occasional peaks soaring to 35°C (95°F), the city encourages residents and visitors alike to embrace outdoor activities. However, the month may also bring about increased rainfall, amounting to 111 mm (4.4 in) over approximately 13 days, fostering the lush landscapes that define this charming region. The humidity hovers around 87%, creating a lush atmosphere that enhances the festive spirit of December. To explore more about the unique climatic characteristics of Caxias do Sul, visit Caxias do Sul Climate.