Last updated: August 21, 2025
In Guaíba, Brazil, December showcases a dynamic climate characterized by a maximum temperature soaring up to 38°C (101°F) and a comfortable average of 24°C (76°F), balanced by cooler nights that dip to a minimum of 13°C (55°F). This month experiences an average precipitation of 80 mm (3.2 in) over approximately 8 days, contributing to a humid environment with humidity levels reaching 84%. Whether basking in the warm sun or experiencing refreshing showers, December in Guaíba offers a vibrant blend of summer heat and moisture, perfect for various outdoor activities.
In Guaíba, Brazil, December marks the transition into the sweltering summer months, showcasing a dynamic range of temperatures. The month begins with a minimum temperature of 13°C (55°F) and peaks with a fiery maximum of 38°C (101°F), reflecting the soaring heat typical of the season. The average temperature stabilizes around a comfortable 24°C (76°F), inviting both locals and visitors to enjoy outdoor activities. Following a trend from the preceding months, the increasing warmth underscores a shift toward more humid conditions, creating an atmosphere ripe for festive gatherings and summer fun by the water. As the year winds down, the temperature fluctuations illustrate Guaíba's vibrant climate, making December an ideal time for sun-seekers and activity enthusiasts alike.
In Guaiba, Brazil, December brings a more moderate precipitation level, with 80 mm (3.2 in) of rainfall accumulated over 8 days. This marks a notable decrease from the precipitation peaks seen in the previous months, particularly September, which recorded a striking 155 mm (6.1 in). While May and October also showcased significant rainfall, December's drier conditions can offer a refreshing contrast as the year comes to a close. The trend illustrates a distinct seasonal shift, as the late-year months generally taper off from the heavier rains, transitioning from the vibrant, rain-soaked earlier months to a calmer, cooler finish to the year.
In Guaíba, Brazil, the month of December sees an average humidity level of 84%, which continues a trend of elevated moisture that peaks mid-year. As the year progresses, humidity shows a gradual increase from 77% in January to a notable 87% in May, indicating a consistent rise leading into the wet season. Following a slight dip in the summer months of July and August, humidity stabilizes in the range of 81% to 85% through the fall. This pattern reflects Guaíba's tropical climate, where elevated humidity levels are a hallmark of both the rainy season and the transitional months, creating an environment that's often lush but can also feel quite sultry.
In December, Guaiba, Brazil, experiences a UV Index of 14, categorized as extreme, with a rapid burn time of just 10 minutes. This trend of particularly high UV levels is consistent with the earlier months of the year, where January and February also recorded a maximum index of 14 and 13, respectively. As we move through the year, the UV Index tends to peak during the summer months, marking a significant increase compared to the more moderate levels observed from May to July. It's essential for residents and visitors alike to remain vigilant and take protective measures against the intense sun. For more detailed information on UV levels throughout the year, visit Guaiba UV Index.
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December shines as a stunning highlight in Guaiba, Brazil, boasting 361 hours of sunshine, the highest of the year. As the year comes to a close, this month outpaces other sunny months significantly, including November's respectable 316 hours. A noticeable trend emerges as we look back: the sunny days seem to wane from mid-year onward, with June and May capturing only 220 and 230 hours respectively. However, the return to longer days in December not only creates a warm farewell to the year but also invites residents and visitors alike to bask in the vibrant sunshine, making it an ideal time to celebrate and explore the beauty of Guaiba.
In Guaiba, Brazil, December shines with a promising likelihood of sunny weather, boasting a 57% chance of sunshine. This relatively high percentage reflects a trend of increasing sun exposure as the year draws to a close, following a dip in June with only 32% chance. December’s sunshine is part of a gradual upward trajectory, especially notable from the previous months, where November held a 52% likelihood and October saw 48%. As summer approaches, Guaiba transitions into a period where sunny days become more frequent, allowing residents and visitors alike to enjoy the vibrant outdoor atmosphere. With this favorable forecast, December emerges as a delightful time to experience the beauty of Guaiba under the sun.
In Guaíba, Brazil, the daylight duration undergoes a rhythmic transformation throughout the year. Starting with 13 hours of sunlight in January and February, the days gradually shorten, reaching a low of 10 hours from May to July, as winter takes hold. However, as spring approaches in August, the duration begins to increase again, with daylight extending to 11 hours for the following months. Notably, December marks a crescendo in this annual cycle, where daylight peaks at an impressive 14 hours. This gradual ebb and flow of sunlight not only illuminates the changing seasons but also enriches the vibrant life of Guaíba, inviting residents and visitors alike to bask in nature's brilliance.
As December arrives in Guaiba, Brazil, the wind begins to pick up a noticeable pace, averaging 3.7 m/s (8 mph)—the highest of the year. This surge in wind speed reflects an intriguing trend; while the months leading up to December saw a gradual increase, December marks a peak that hints at the onset of summer. Notably, the steady rise from 2.6 m/s in March to nearly 4 m/s by year-end underscores a seasonal transition where breezes become more lively and invigorating, offering a refreshing change. As the festive spirit of the holiday season unfolds, the strengthening winds in December contribute to the vibrant atmosphere, making it an ideal time for outdoor activities and celebrations by the enchanting waters of Guaiba.
Weather in Guaiba varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Guaiba, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, temperatures in Guaiba range from a minimum of 13°C (55°F) to a maximum of 38°C (101°F), with an average temperature of 24°C (76°F). The month sees about 80 mm (3.2 in) of precipitation over 8 days, accompanied by high humidity levels of 84%. In contrast, January experiences slightly warmer conditions, with minimum temperatures of 15°C (58°F) and maximum temperatures reaching 39°C (103°F), resulting in an average of 26°C (79°F). However, January also sees increased precipitation at 93 mm (3.7 in) spread over 12 days, but with a lower humidity of 77%. For more detailed information, you can refer to Guaiba weather in January.
December generally features a warm climate with temperatures ranging from a minimum of 13°C (55°F) to a maximum of 38°C (101°F), averaging around 24°C (76°F). However, it experiences 80 mm (3.2 in) of precipitation over about 8 days, maintaining a high humidity level of 84%. In contrast, February sees slightly warmer conditions, with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 38°C (100°F), averaging 25°C (77°F). The month is wetter, with a total precipitation of 112 mm (4.4 in) across 11 days, and the humidity drops slightly to 79%. For more detailed weather insights, you can visit Guaiba weather in February.
December's weather features a slightly warmer average temperature of 24°C (76°F) compared to March's average of 23°C (75°F). Both months experience similar temperature ranges, with maximums reaching 38°C (101°F) in December and 38°C (100°F) in March. However, December is slightly more humid at 84%, while March's humidity is a bit lower at 79%. In terms of precipitation, March has more rainfall, with 109 mm (4.3 in) over 12 days, compared to December's 80 mm (3.2 in) over 8 days. For specific details on March weather, visit Guaiba weather in March.
In December, the weather is considerably warmer, with temperatures ranging from a minimum of 13°C (55°F) to a maximum of 38°C (101°F) and an average of 24°C (76°F). It also sees a higher humidity level at 84% and experiences about 80 mm (3.2 in) of precipitation over eight days. In contrast, April presents cooler conditions, featuring a lower temperature range with a minimum of 8°C (47°F), an average of 21°C (71°F), and a maximum of 34°C (93°F). The month has slightly less precipitation at 73 mm (2.9 in) but maintains a similar number of rainy days and a slightly lower humidity level of 82%. For more detailed information about the weather in April, you can check Guaiba weather in April.
In December, temperatures in Guaiba are notably warmer, with a minimum of 13°C and an average high reaching up to 38°C, making it a hot month, despite experiencing around 80 mm of precipitation over approximately 8 days. The humidity is quite high at 84%, contributing to a muggy atmosphere. In contrast, May presents much cooler weather, with temperatures ranging from a minimum of 5°C to a maximum of 32°C. This month sees significantly more rainfall, totaling 153 mm over about 10 days and slightly higher humidity levels at 87%. For more detailed weather information, you can check Guaiba weather in May.
In December, the weather is significantly warmer with temperatures ranging from a minimum of 13°C (55°F) to a maximum of 38°C (101°F) and an average of 24°C (76°F). The humidity is high at 84%, accompanied by about 80 mm (3.2 in) of rainfall over 8 days. In contrast, June presents much cooler conditions, with temperatures dipping to a minimum of 3°C (38°F) and peaking at 31°C (88°F), averaging 16°C (60°F). Although it receives more rainfall—113 mm (4.4 in) over 9 days—the humidity remains similar at 85%. For more detailed insights into June weather, you can check Guaiba weather in June.
When comparing the weather in December and July, notable differences emerge. December features a much warmer climate, with temperatures ranging from a minimum of 13°C (55°F) to a maximum of 38°C (101°F) and an average of 24°C (76°F). In contrast, July experiences cooler temperatures, with a minimum of 2°C (35°F) and an average of 14°C (58°F), peaking at 30°C (87°F). While both months see precipitation on about eight days, December is comparatively drier with 80 mm (3.2 in) of rain, compared to July’s 122 mm (4.8 in). Humidity levels are relatively high in both months, at 84% in December and 82% in July. For more specific weather details about July, you can visit Guaiba weather in July.
December and August present contrasting weather scenarios. In December, temperatures range from a minimum of 13°C (55°F) to a scorching maximum of 38°C (101°F), with an average of 24°C (76°F). The month experiences 80 mm (3.2 in) of precipitation over 8 days, alongside a high humidity level of 84%. In comparison, August is much cooler, with temperatures dipping to a minimum of 3°C (38°F) and reaching a maximum of 34°C (94°F), averaging 16°C (61°F). It also has slightly lower precipitation at 70 mm (2.8 in) over the same number of days but maintains a similar humidity level of 81%. For more detailed information, you can check Guaiba weather in August.
In comparing the weather between December and September, we see significant differences in temperature and precipitation. December experiences warmer temperatures with a minimum of 13°C (55°F), an average of 24°C (76°F), and a maximum reaching up to 38°C (101°F). In contrast, September has a cooler minimum of 7°C (45°F) and a lower average temperature of 18°C (65°F), although it can still reach a high of 36°C (96°F).
Precipitation levels also vary, with December receiving 80 mm (3.2 in) over approximately 8 days, while September is considerably wetter, accumulating 155 mm (6.1 in) over about 12 days. Both months share a humidity level of 84%, contributing to the overall feel of the climate. For more detailed insights into the September weather in the region, you can check out Guaiba weather in September.
When comparing the weather of December to that of October, several notable differences emerge. December tends to be warmer with an average temperature of 24°C (76°F) and a maximum that can reach up to 38°C (101°F), while October has a cooler average of 20°C (68°F) and peaks at 37°C (100°F). In terms of precipitation, October experiences significantly more rain, with a total of 139 mm (5.5 in) spread over 13 days, compared to December's 80 mm (3.2 in) over just 8 days. Humidity levels remain similar, with December at 84% and October at 85%. For more detailed information on October weather, you can visit Guaiba weather in October.
In comparing the weather between November and December, December tends to be slightly warmer, with average temperatures reaching 24°C (76°F) compared to November's average of 22°C (72°F). The maximum recorded temperature in December can reach up to 38°C (101°F), while November records a max of 37°C (99°F). Precipitation is also noteworthy; December sees 80 mm (3.2 in) over 8 days, which is less than November's 112 mm (4.4 in) spread across 10 days. Additionally, humidity levels are relatively similar, with December at 84% and November at 82%. For a more detailed look at November's weather, check out Guaiba weather in November.
In December, Guaiba experiences a distinct shift in weather, characterized by warmer temperatures and increased humidity compared to the cooler months preceding it. With a maximum temperature soaring to 38°C (101°F) and an average of 24°C (76°F), this month is a time when outdoor activities thrive. However, December also brings about a notable uptick in precipitation, with 8 days of rain contributing to a total of 80 mm (3.2 in), making it one of the wetter months of the year. This blend of warmth and moisture creates a lush environment, perfect for enjoying the natural beauty of Guaiba. For more details on the weather patterns throughout the year, check out Guaiba Climate.