Last updated: August 21, 2025
Visitors to Guaratuba, Brazil in December can expect a vibrant tropical climate characterized by maximum temperatures reaching 32°C (89°F), creating a warm and inviting atmosphere. The average temperature of 24°C (76°F) offers a comfortable backdrop for outdoor activities, while nights cool down to a pleasant 18°C (64°F). However, adventurers should be prepared for frequent rainfall, with 193 mm (7.6 in) spread over about 20 days, contributing to the lush scenery. With humidity levels sitting at a high 88%, the air is rich and invigorating, setting the stage for a truly immersive experience in this coastal paradise.
In Guaratuba, Brazil, December marks the transition into summer, showcasing a delightful warmth that captivates both locals and visitors. With minimum temperatures around 18°C (64°F), the nights retain a comfortably mild feel, while daytime averages reach a pleasant 24°C (76°F). As the month progresses, highs can soar to 32°C (89°F), aligning with the region's consistent trend of warmer temperatures during the Southern Hemisphere's summer months. Notably, this pattern presents a distinct contrast to the cooler offerings of the earlier months, such as July and August, where averages dipped to around 18°C (64°F). December's escalating warmth provides the perfect backdrop for enjoying Guaratuba's stunning beaches and vibrant outdoor activities, embodying the essence of summer's arrival.
In December, Guaratuba experiences a notable shift in precipitation patterns, with an average rainfall of 193 mm (7.6 in) spread over 20 days. This marks a slight decrease from the wetter months of January and February, but still contributes significantly to the region's overall rainfall. As the year winds down, December often showcases a blend of overcast skies and intermittent showers, encouraging lush greenery and vibrant landscapes. Comparatively, this month stands out against the drier winter months, such as July, which recorded a meager 32 mm (1.2 in). Overall, December's precipitation underscores the transition towards the summer season, maintaining Guaratuba's characteristic lushness while also preparing the environment for the impending rainfall of the new year.
In Guaratuba, Brazil, December marks the peak of humidity with a notable 88%, reflecting the region's tropical climate. This month transitions from the slightly lower levels seen in the hotter parts of the year, where humidity varies from 79% in August to 86% in November. Notably, the trend reveals a gradual rise during the latter half of the year, with December standing out as the month with the highest moisture content. Following the drier July and August, the humidity steadily climbs again, creating a lush, green environment perfect for outdoor activities and vibrant local ecosystems. As the year closes, Guaratuba's increased humidity invites both the warmth of summer and the refreshing coastal breezes that define its charm.
In December, Guaratuba, Brazil experiences an extreme UV Index of 14, mirroring the conditions of the previous month. With a short burn time of just 10 minutes, this month's UV intensity underscores the importance of sun protection. As the year draws to a close, the trend of consistently high UV levels from January through March returns, with values peaking at 15 in January. Following a slight decline during the mid-year months, the UV Index climbs back, indicating that sun safety remains a priority even in the festive season. For more insights on UV exposure in Guaratuba, check out Guaratuba UV Index.
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In December, Guaratuba basks in an impressive 317 hours of sunshine, marking the peak of its vibrant summer season. This surge in daylight follows a notable trend, with the year concluding on a high note after a gradual rise in hours throughout the latter months. Starting from November's generous 300 hours, each month leading up to December contributes to a brightening atmosphere that captivates both locals and tourists. Comparatively, the sunshine hours in December exceed those of the earlier months, showcasing a clear seasonal pattern as the year transitions towards its warmest and sunniest time. As the sun sets later over the horizon, December invites everyone to revel in outdoor adventures and beachside relaxation, a perfect climax to the year's natural brilliance.
In Guaratuba, Brazil, the likelihood of sunny weather in December hovers around 31%, positioning it as a transitional month between the cooler periods of late autumn and the sunnier days of summer. While this percentage reflects a promising chance for a bright day, it is notably lower than the peak sunshine of July, which boasts a 57% likelihood. However, as one moves through the year, December shines brighter than previous months like October and November, which present only 13% and 27% chances respectively. This gradual increase signifies a shift towards sunnier times, hinting at the much-anticipated warmth and vibrancy of the approaching summer months.
In Guaratuba, Brazil, the rhythm of daylight reflects a captivating annual cycle. December brings a generous 13 hours of daylight, tying with January and November for the longest days of the year. As the year progresses, daylight gradually diminishes, peaking in the early months before tapering off to 10 hours during the cooler winter months of May, June, and July. However, as the seasons shift, daylight begins to recover, returning to 11 hours by August and maintaining this duration into September. Notably, the gentle increase in daylight in the latter part of the year adds a refreshing contrast to winter's shorter days, making the transition back to longer daylight an invigorating experience for residents and visitors alike.
As December breezes into Guaratuba, Brazil, the average wind speed holds steady at 3.1 m/s (7 mph), echoing the mild gusts of late fall. The transition into summer sees an increase from the calmer winds of the previous months, reflecting a pattern of slightly higher air movement. In November, the winds picked up to a similar speed, and this trend continues into December, suggesting a fateful shift towards the warmer, more dynamic summer months ahead. Remarkably, this is a notable contrast to the quieter months earlier in the year, such as February and July, where winds hovered around 2.3 m/s (5 mph). Overall, December's winds herald a vibrant seasonal change, creating an invigorating atmosphere for both locals and visitors alike.
Weather in Guaratuba varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Guaratuba, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, the weather in Guaratuba is characterized by milder temperatures, with a minimum of 18°C (64°F) and an average of 24°C (76°F), peaking at a maximum of 32°C (89°F). The month is quite rainy, with a total precipitation of 193 mm (7.6 in) over 20 days, accompanied by high humidity levels at 88%. In contrast, January sees slightly warmer temperatures, with a minimum of 19°C (67°F), an average of 26°C (79°F), and a maximum reaching 36°C (97°F). Precipitation increases to 237 mm (9.3 in), occurring over 21 days, but humidity decreases slightly to 86%. For more information, you can check out Guaratuba weather in January.
In December, temperatures in Guaratuba range from a minimum of 18°C (64°F) to a maximum of 32°C (89°F), with an average of 24°C (76°F). The month experiences significant rainfall, totaling 193 mm (7.6 in) spread over 20 days, and high humidity levels at 88%. In contrast, February sees a slight increase in temperatures, with a minimum of 18°C (65°F), an average of 25°C (78°F), and a higher maximum of 34°C (94°F). Rainfall also increases to 213 mm (8.4 in), still over 20 days, but with slightly lower humidity at 83%. Overall, February tends to be warmer and wetter than December. For more insights on the February weather, check out Guaratuba weather in February.
December and March present slightly differing weather patterns in terms of temperature and precipitation. In December, the temperatures range from a minimum of 18°C (64°F) to a maximum of 32°C (89°F), with an average of 24°C (76°F). The month sees significant rainfall, totaling 193 mm (7.6 in) spread over 20 days, along with a high humidity level of 88%. In contrast, March offers a comparable temperature range, with minimums at 19°C (66°F) and maximums at 32°C (90°F), averaging 25°C (77°F). Precipitation increases slightly to 203 mm (8.0 in) over 24 days, coupled with a marginally lower humidity of 85%. For more detailed insights, check out Guaratuba weather in March.
When comparing the weather in December and April, we notice some interesting differences. December tends to be slightly warmer, with average temperatures ranging from a minimum of 18°C (64°F) to a maximum of 32°C (89°F), while April's temperatures range from a minimum of 14°C (58°F) to a maximum of 32°C (91°F). In terms of precipitation, December receives significantly more rain, averaging 193 mm (7.6 in) across 20 days, compared to April’s 115 mm (4.5 in) over 17 days. Additionally, December has a higher humidity level at 88%, while April's humidity is a bit lower at 85%. For a detailed look at April's weather, you can check out Guaratuba weather in April.
In December, temperatures are significantly warmer, with minimums of 18°C (64°F) and maximums reaching up to 32°C (89°F), creating a tropical atmosphere. The month also experiences considerable rainfall, averaging 193 mm (7.6 in) over 20 days, and the humidity remains quite high at 88%. In contrast, May offers a cooler climate, with temperatures starting at a minimum of 11°C (52°F) and peaking at 29°C (84°F). Rainfall is less frequent at 127 mm (5.0 in) over 15 days, and humidity slightly decreases to 86%. For a more detailed look at the specifics of Guaratuba’s weather in May, you can visit Guaratuba weather in May.
December and June present contrasting weather conditions. In December, temperatures are warm, with a minimum of 18°C (64°F) and an average of 24°C (76°F), reaching a maximum of 32°C (89°F). However, the month is characterized by high humidity at 88% and significant rainfall, averaging 193 mm (7.6 in) over 20 days. In stark comparison, June sees cooler temperatures, with a minimum of 9°C (48°F), an average of 19°C (67°F), and a maximum of 28°C (83°F). The precipitation is lower at 113 mm (4.5 in) across 12 days, and the humidity decreases slightly to 85%. For those interested in more details, you can check Guaratuba weather in June.
When comparing the weather in December and July, it becomes evident that December is significantly warmer and wetter. In December, temperatures range from a minimum of 18°C (64°F) to a maximum of 32°C (89°F), with an average of 24°C (76°F). The month also sees considerable precipitation, totaling 193 mm (7.6 in) over approximately 20 days, alongside high humidity levels of 88%. In contrast, July experiences much cooler temperatures, with a minimum of 7°C (44°F), an average of 18°C (64°F), and a maximum of 29°C (84°F). Additionally, July is far drier, with only 32 mm (1.2 in) of precipitation over about 7 days and a humidity level of 80%. For more details on the specific conditions during this time, visit Guaratuba weather in July.
The weather in December is markedly warmer and more humid than in August. While December sees temperatures ranging from a minimum of 18°C (64°F) to a maximum of 32°C (89°F), August experiences a cooler range with minimum temperatures of 8°C (46°F) and maximums of 28°C (82°F). Additionally, December is much wetter, with an average precipitation of 193 mm (7.6 in) spread over 20 days, compared to August's 72 mm (2.8 in) over just 11 days. This difference is reflected in the humidity levels as well, with December recording a high of 88% compared to August’s 79%. For more specific insights about August weather, you can visit Guaratuba weather in August.
In December, the weather tends to be significantly warmer and more humid than in September, with temperatures ranging from a minimum of 18°C (64°F) to a maximum of 32°C (89°F), while September's temperatures are milder, with a minimum of 12°C (54°F) and a maximum of 28°C (82°F). Additionally, December experiences much higher precipitation, averaging 193 mm (7.6 in) across 20 days, compared to September's 91 mm (3.6 in) over 14 days. Despite the warmer temperatures in December, humidity is also higher at 88%, while September has a lower humidity level of 82%. For more details on September weather, you can check Guaratuba weather in September.
When comparing the weather in December and October, both months showcase relatively warm temperatures, but December tends to be slightly warmer. In December, temperatures range from a minimum of 18°C (64°F) to a maximum of 32°C (89°F), with an average of 24°C (76°F). In contrast, October sees a minimum of 16°C (60°F) and a maximum of 31°C (89°F), averaging 21°C (70°F). Additionally, December experiences more precipitation, with 193 mm (7.6 in) spread over 20 days, compared to October's 166 mm (6.6 in) over 19 days. The humidity also rises in December to 88%, while October has a slightly lower humidity level of 82%. For a detailed look at October's weather, you can visit Guaratuba weather in October.
In comparing the weather of December to that of November, we observe a slight increase in temperatures, with December experiencing a minimum of 18°C (64°F) and an average of 24°C (76°F), compared to November's minimum of 15°C (60°F) and average of 22°C (72°F). Both months record the same maximum temperature of 32°C (89°F), but December sees an increase in precipitation, totaling 193 mm (7.6 in) over 20 days, compared to November’s 153 mm (6.0 in). Humidity is also marginally higher in December at 88%, compared to 86% in November. These changes suggest that while temperatures are warming slightly, December is wetter and more humid. For more details, check Guaratuba weather in November.
In December, Guaratuba's weather transforms into a warm and humid embrace, standing out from the milder months preceding it. With higher temperatures peaking at 32°C (89°F) and a consistently humid atmosphere hovering around 88%, this coastal town experiences a definitive shift towards summer. Although the month welcomes an influx of rainfall, with 20 days of precipitation, these downpours help to cool the air and invigorate the lush landscapes that characterize the region. Overall, December is not just about rising temps; it's a vibrant blend of warmth and lush greenery, making it a unique time to experience Guaratuba's natural beauty. For more insights into what to expect throughout the year, check out Guaratuba Climate.