Last updated: August 21, 2025
Experience the vibrant December weather of Cabo Frio, Brazil, where the climate is both inviting and refreshing. With maximum temperatures reaching 27°C (80°F) and an average of 24°C (75°F), visitors can enjoy warm days ideal for beach activities. While the minimum temperature hovers around 21°C (70°F), the coastal breezes provide a pleasant reprieve. However, be prepared for occasional showers, as 101 mm (4.0 in) of rainfall may occur over approximately 10 days, contributing to an 81% humidity level that enriches the lush surroundings. Whether basking in the sun or exploring the local culture, December in Cabo Frio promises a delightful getaway.
In Cabo Frio, Brazil, December marks a delightful transition into summer, with temperatures on the rise as the year draws to a close. The average temperature hovers around a comfortable 24°C (75°F), while enjoying minimums of 21°C (70°F) and peaks reaching 27°C (80°F). This warm climate invites visitors to embrace the beach lifestyle, reminiscent of the splendid warmth in January and February, which consistently feature similar patterns. As the final month of the year transitions into summer, Cabo Frio’s December weather sets the stage for sun-soaked days and vibrant evenings, perfect for exploration and relaxation. The gradual warming trend from winter into summer highlights Cabo Frio's appeal, ensuring an inviting atmosphere for holidaymakers seeking the perfect escape.
In Cabo Frio, Brazil, December marks a significant transition towards the peak of the rainy season, with precipitation reaching 101 mm (4.0 in) over approximately 10 days. This notable rainfall is just slightly less than the 109 mm (4.3 in) recorded in November, suggesting that while December remains wet, it signals a shift as the month progresses. The consistent increase in precipitation from the drier months of July and August, where totals are just 27 mm (1.1 in) and 50 mm (2.0 in) respectively, showcases a clear trend towards higher moisture levels as the year draws to a close. This trend emphasizes Cabo Frio's unique climatic pattern, where the latter part of the year brings a refreshing vibrancy, perfect for those looking to experience the lush beauty of this coastal paradise.
In Cabo Frio, Brazil, December experiences humidity levels at 81%, a slight uptick from the previous month’s 79%. This rise is part of a trend that showcases a general decline in humidity from the peak months of January through March, where levels hover around the mid-80s. As the year progresses into the latter months, humidity gradually decreases, reaching its lowest point in October at 74%. Despite this overall reduction, December marks a subtle increase, suggesting a shift toward the more humid summer months that follow. The flow of humidity in Cabo Frio thus reflects the region's distinct seasonal transitions, balancing comfort and the embrace of tropical warmth.
As December rolls into Cabo Frio, Brazil, the UV Index reaches a striking 15, categorizing it as extreme with a burn time of just 10 minutes. This trend marks a continuation of high UV levels seen throughout the summer months, where the index fluctuated between 13 and 16 from January to November, consistently requiring vigilant sun protection. As temperatures soar and the sun intensifies, it’s crucial for visitors and locals alike to stay informed and shield themselves from the sun’s rays. For a detailed look at the UV levels throughout the year, explore the Cabo Frio UV Index.
UV Risk Categories
December in Cabo Frio, Brazil, shines brighter than any other month, boasting an impressive 336 hours of sunshine. This delightful surge marks the pinnacle of a gradual increase in daylight throughout the year, peaking after a steady climb from 289 hours in May. As the seasons change, residents and visitors alike embrace the warmth, enjoying nearly a 10% rise in sun hours compared to the previous month. December’s radiance not only enhances the picturesque landscapes of Cabo Frio but also beckons sun-seekers to revel in outdoor activities and bask in the vibrant coastal atmosphere before the year's end.
As December approaches in Cabo Frio, Brazil, the chance of sunny weather hovers around 46%, offering a delightful mix of sun and clouds. This percentage marks a slight improvement from the preceding months of October and November, which show lower likelihoods of sunshine at 24% and 40%, respectively. Notably, from the middle of the year—where the sun is nearly guaranteed with probabilities ranging from 61% to 64%—there's a gradual decline into the late fall, but December manages to hold on to a decent chance for sunny days. This trend gives visitors hope for pleasant weather as they plan their end-of-year festivities along the beautiful coast.
In Cabo Frio, Brazil, December brings a delightful return to longer days, with 13 hours of daylight that mirrors the brightness of January and November. As the year winds down, residents and visitors alike can bask in the warm sun, enjoying the stunning beaches and vibrant outdoor activities. Interestingly, daylight begins to taper off slightly during the autumn and winter months from April to October, where it dips to a low of 10 hours in June through July. However, as the calendar flips to December, the return to longer daylight hours sets a cheerful tone for the festive season. Overall, Cabo Frio's daylight trends reveal a rhythmic cycle of sun-drenched days that enhance its charm, making it a year-round destination for sun seekers.
As December rolls into Cabo Frio, the winds begin to shift into a more moderate rhythm, with an average speed of 5.1 m/s (12 mph). This marks a gentle decline from the breezy gusts of August and September, which typically enjoy the strongest winds of the year at 7.6 m/s (17 mph) and 7.1 m/s (16 mph), respectively. The transition into December reflects a trend of decreasing wind speeds as the year draws to a close, creating a serene atmosphere perfect for coastal leisure. Following a peak in the mid-year months, the consistent yet softer breezes of December maintain the idyllic charm of Cabo Frio, inviting visitors to bask in its tranquil coastal splendor.
Weather in Cabo Frio varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Cabo Frio, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, Cabo Frio experiences warm temperatures, with a minimum of 21°C (70°F) and an average of 24°C (75°F), reaching a maximum of 27°C (80°F). The month sees a significant amount of rainfall, averaging 101 mm (4.0 in) over 10 days, contributing to a humidity level of 81%. In contrast, January brings slightly warmer weather, with an average temperature rising to 25°C (77°F) and a maximum of 28°C (83°F). Additionally, January is notably drier, with only 38 mm (1.5 in) of precipitation over 4 days and an increase in humidity to 85%. For more information, you can view Cabo Frio weather in January.
In December, the weather in Cabo Frio features a minimum temperature of 21°C (70°F) and averages around 24°C (75°F), peaking at 27°C (80°F). This month sees a fair amount of rainfall, with about 101 mm (4.0 in) distributed over 10 days, and humidity levels hovering around 81%.
In contrast, February experiences slightly warmer conditions, with temperatures ranging from a minimum of 21°C (70°F) to an average of 25°C (77°F) and a maximum of 29°C (84°F). February is also characterized by less precipitation, receiving 77 mm (3.0 in) over 9 days, while humidity increases to 86%.
For more details on Cabo Frio's February weather, you can check out Cabo Frio weather in February.
In December, Cabo Frio experiences warm temperatures ranging from a minimum of 21°C (70°F) to a maximum of 27°C (80°F), with an average temperature of 24°C (75°F). The month sees about 101 mm (4.0 in) of precipitation spread over 10 days, coupled with a humidity level of 81%. In contrast, March brings slightly warmer weather, with temperatures ranging from a minimum of 22°C (72°F) to a maximum of 29°C (84°F), and an average of 25°C (78°F). The precipitation increases to 126 mm (5.0 in), occurring over 11 days, while humidity rises slightly to 84%. For more detailed information, check out Cabo Frio weather in March.
In comparing the weather between December and April, both months exhibit warm temperatures, with December averaging 24°C (75°F) and April slightly warmer at an average of 24°C (76°F). December experiences higher maximum temperatures, reaching 27°C (80°F), while April can peak at 28°C (83°F). Precipitation is considerably higher in December at 101 mm (4.0 in) over 10 days, compared to April's 51 mm (2.0 in) across 12 days. Humidity levels are quite similar, with December at 81% and April slightly higher at 82%. For more details on April weather, check out Cabo Frio weather in April.
In December, the weather features slightly warmer temperatures, with minimums around 21°C (70°F) and averages of 24°C (75°F), peaking at a maximum of 27°C (80°F). The month also sees a higher level of precipitation, totaling 101 mm (4.0 in) over 10 days, accompanied by a humidity level of 81%. In contrast, May experiences marginally cooler conditions, with minimum temperatures at 19°C (66°F) and average temperatures of 23°C (74°F), while also reaching a maximum of 27°C (82°F). Precipitation is less in May, totaling 73 mm (2.9 in) over 9 days, and the humidity is slightly lower at 80%. For a detailed comparison of conditions during this time, you can check the Cabo Frio weather in May.
When comparing the weather in December and June, December tends to be warmer with average temperatures ranging from a minimum of 21°C (70°F) to a maximum of 27°C (80°F), while June sees slightly cooler conditions with a minimum of 19°C (67°F) and the same maximum of 27°C (80°F). December also experiences higher humidity levels at 81% compared to June's 78%. Notably, December faces more precipitation, totaling 101 mm (4.0 in) over approximately 10 days, whereas June has significantly less with only 41 mm (1.6 in) across about 8 days. For more details on specific conditions during the month, you can explore Cabo Frio weather in June.
When comparing the weather in December and July, it's clear that December is generally warmer and wetter. December experiences higher temperatures with a minimum of 21°C (70°F) and an average of 24°C (75°F), peaking at 27°C (80°F). This month also sees significant rainfall, averaging 101 mm (4.0 in) over about 10 days, contributing to a higher humidity level of 81%. In contrast, July offers cooler temperatures, with a minimum of 17°C (63°F) and an average of 21°C (71°F), reaching a maximum of 26°C (79°F). Rainfall is much lighter in July, totaling only 27 mm (1.1 in) over about 6 days, accompanied by lower humidity at 77%. For more detailed information, check out Cabo Frio weather in July.
When comparing the weather in December and August, there are distinct differences in temperature and precipitation. December typically sees warmer temperatures, with a minimum of 21°C (70°F) and an average of 24°C (75°F), peaking at a maximum of 27°C (80°F). In contrast, August experiences cooler temperatures, with a minimum of 17°C (63°F) and an average of 21°C (70°F), reaching a maximum of 26°C (78°F). Additionally, December has higher precipitation levels, with 101 mm (4.0 in) of rain over about 10 days, compared to August's 50 mm (2.0 in) spread over 9 days. Humidity is also higher in December at 81%, compared to 75% in August. For more details on August weather, you can visit Cabo Frio weather in August.
In December, the weather is generally warmer than in September, with average temperatures ranging from a minimum of 21°C (70°F) to a maximum of 27°C (80°F), compared to September's 19°C (67°F) to 26°C (78°F). December also experiences higher humidity at 81% and significantly more precipitation, totaling 101 mm (4.0 in) over about 10 days, while September sees only 41 mm (1.6 in) of rain over 5 days. This makes December a wetter and more humid month, contrasting with the relatively drier and cooler September weather. For more detailed information on the September climate, you can check Cabo Frio weather in September.
In December, the weather is generally warmer than in October, with temperatures ranging from a minimum of 21°C (70°F) to a maximum of 27°C (80°F), compared to October's range of 18°C (64°F) to 26°C (79°F). Additionally, December experiences higher humidity at 81%, which can make the warmth feel more intense, while October has a more moderate humidity level of 74%. Precipitation also sees an increase in December, with 101 mm (4.0 in) over 10 days, compared to October's 67 mm (2.6 in) over 11 days. For more details on October's weather, you can visit Cabo Frio weather in October.
In December, the weather remains warm with temperatures ranging from a minimum of 21°C (70°F) to a maximum of 27°C (80°F), averaging around 24°C (75°F). The month experiences slightly higher humidity at 81% and fewer rainy days, totaling 10 days of precipitation, which amounts to 101 mm (4.0 in). In contrast, November's temperatures are slightly cooler, with a minimum of 20°C (68°F) and an average of 23°C (73°F), while also reaching up to 27°C (80°F). November has more rainfall, totaling 109 mm (4.3 in) over 13 days, and a slightly lower humidity of 79%. For more details on the November climate, you can check Cabo Frio weather in November.
As December rolls in, Cabo Frio ushers in a pleasant shift in weather, with warmer temperatures that create a sunny atmosphere perfect for beachgoers. Compared to the cooler months preceding it, December showcases a delightful balance of warmth and humidity, with the average temperature rising to a comfortable level that encourages outdoor activities. Although a moderate amount of rain may fall on about ten days, this typically adds to the lush tropical scenery rather than diminishing the joy of the season. For those planning a visit, December’s inviting climate promises both relaxation and adventure in this beautiful coastal city. For more information on seasonal trends, check out Cabo Frio Climate.