Last updated: August 21, 2025
December in Ilhabela, Brazil offers a delightful tropical experience, with maximum temperatures averaging 29°C (85°F) and minimums around 19°C (67°F). The overall average temperature rests comfortably at 24°C (75°F), creating a warm and inviting atmosphere. Visitors should prepare for some rain, as the island sees about 144 mm (5.7 in) of precipitation over 14 days, resulting in a humidity level of approximately 80%. This blend of warm temperatures and occasional showers enhances the lush beauty of Ilhabela, making it an ideal destination for nature lovers and beachgoers alike.
In December, Ilhabela, Brazil, ushers in the peak of its warm season, with temperatures that reflect the island's tropical allure. The minimum temperature hovers around 19°C (67°F), ensuring comfortable evenings, while the average temperature reaches a pleasant 24°C (75°F), perfect for beach outings and exploring nearby trails. Daytime highs can soar to 29°C (85°F), inviting sun-seekers to soak up the rays. Compared to the preceding months, December showcases a notable warmth, marking a transition into summer, which begins in earnest, promising idyllic conditions for both relaxation and adventure amid the island's stunning landscapes.
In Ilhabela, Brazil, December marks a noticeable transition as the year draws to a close, with precipitation amounting to 144 mm (5.7 in) over 14 rainy days. This marks a slight uptick from the preceding month’s figures, reflecting the onset of the summer season characterized by increased humidity and the lush vibrancy of nature. While December doesn't reach the rainfall peaks of early summer months like February with its hefty 214 mm, it does maintain a consistent wetness typical for this time of year. Following a trend, early summer months see higher precipitation, but December’s rainfall fosters a refreshing atmosphere, making the island especially appealing for visitors drawn to its scenic beauty, vibrant ecosystems, and thirst-quenching rains that nourish the landscape.
In December, Ilhabela, Brazil experiences a notable shift in humidity, with levels averaging around 80%. This month marks a transition from the more humid summer months of January and February, both at 88%, and approaches the drier conditions typical of the latter months of the year. As the calendar moves towards the new year, the humidity starts to dip from the autumn peak of 75% in November. Overall, December stands as a balance between the sultry summer and the increasingly comfortable dry season, setting the stage for the vibrant landscapes and lush flora that define this coastal paradise.
In December, Ilhabela, Brazil, experiences a UV Index of 15, positioned in the extreme exposure category, indicating that sun protection is crucial with a burn time of just 10 minutes. This level of intensity mirrors what locals and visitors faced earlier in the year, particularly in January and February, both also recording a UV Index of 15. As the season progresses, the index remains notably high, with March through November frequently presenting extreme or very high levels. These patterns highlight the consistent need for vigilance against sun exposure, especially during the peak summer months. For more detailed insights on how to stay safe under the sun, visit Ilhabela UV Index.
UV Risk Categories
In Ilhabela, Brazil, December shines brightly with an impressive 324 hours of sunshine, marking it as one of the sunniest months of the year. This delightful weather sets the stage for a vibrant summer, contrasting sharply with the cooler, cloudier days of June, which recorded only 261 hours. As the year progresses, the days gradually get longer and sunnier, with sunshine hours peaking in December after a steady build-up from the previous months. The trend highlights not only the allure of visiting Ilhabela during the festive season but also the importance of embracing these golden days, perfect for enjoying the island's stunning beaches and lush landscapes. With December's radiant sun illuminating the shores, it's no wonder that this month attracts travelers seeking warmth and adventure.
In December, Ilhabela, Brazil enjoys a 48% chance of sunny weather, making it a favorable time for beachgoers and outdoor enthusiasts. This percentage positions December right in the middle of the yearly spectrum, following a trend where sunny probabilities generally rise through the spring and into the early summer months. Compared to the earlier months, such as January's relatively low 21%, December offers a more promising outlook as it transitions toward the sunnier months of January and July, which peak at 21% and 62% respectively. This gradual increase suggests that while the weather may still be variable, December is becoming an increasingly appealing option for those seeking a sun-drenched escape amidst the lush landscapes that define Ilhabela.
In Ilhabela, Brazil, the daylight duration follows a captivating rhythm throughout the year, peaking and waning with the seasons. December, marking the start of summer, gifts the island with 13 hours of daylight, matching the extended days of January and November. As the year progresses, daylight gradually diminishes from 12 hours in February and March to a more subdued 10 hours from May through July. Interestingly, daylight begins to lengthen again in August, bringing a refreshing 11 hours, before stabilizing at 12 hours in October. This ebb and flow not only enhances the island's natural beauty but also invites locals and travelers alike to bask in the vibrant sun-drenched moments of Ilhabela's enchanting landscape.
In December, the wind in Ilhabela, Brazil, settles into a gentle rhythm, with an average speed of 3.7 m/s (8 mph). This consistent breeze provides a refreshing backdrop as the year winds down, mirroring the mild patterns seen in January and February, where winds also hover around 3.1 m/s. As the seasons progress, April marks a noticeable uptick, ushering in stronger gusts at 4.5 m/s (10 mph), with further increases in August and September—peaking at 4.7 m/s (11 mph) in September. However, by December, the winds gentle down, creating a tranquil atmosphere perfect for those seeking relaxation amid the island’s stunning scenery. This cyclical dance between calm and windier months showcases Ilhabela's dynamic coastal climate, inviting visitors to enjoy both the serene and spirited moments.
Weather in Ilhabela varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Ilhabela, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, temperatures in Ilhabela range from a minimum of 19°C (67°F) to a maximum of 29°C (85°F), with an average of 24°C (75°F). The month sees considerable rainfall, totaling 144 mm (5.7 in) over 14 days, accompanied by humidity levels around 80%. In contrast, January experiences slightly warmer conditions, with temperatures ranging from a minimum of 22°C (72°F) to a maximum of 31°C (89°F) and an average of 26°C (79°F). Rainfall in January is slightly lower at 138 mm (5.5 in) over 13 days, while humidity increases to 88%. For more detailed insights, you can check Ilhabela weather in January.
In December, the weather tends to be warm with temperatures ranging from a minimum of 19°C (67°F) to a maximum of 29°C (85°F) and an average of 24°C (75°F). There's a fair amount of rainfall, totaling about 144 mm (5.7 in) over 14 days, and the humidity hovers around 80%. Conversely, February brings even warmer conditions, with minimum temperatures at 21°C (71°F) and maximums reaching 32°C (90°F), averaging 25°C (78°F). Precipitation increases to 214 mm (8.4 in) across 16 days, accompanied by higher humidity levels at 88%. For more details on February weather in Ilhabela, check Ilhabela weather in February.
December and March in Ilhabela exhibit warm temperatures and relatively high humidity, but there are notable differences between the two months. December sees an average temperature ranging from a minimum of 19°C (67°F) to a maximum of 29°C (85°F), with a total precipitation of 144 mm (5.7 in) over about 14 days. In contrast, March experiences slightly warmer temperatures, with a minimum of 21°C (70°F), an average of 25°C (77°F), and a maximum of 30°C (87°F). Additionally, March is wetter, with precipitation reaching 196 mm (7.7 in) across 15 days and humidity climbing to 87%. For a detailed comparison, check out Ilhabela weather in March.
In December, the weather features a warm average temperature of 24°C (75°F), with highs reaching up to 29°C (85°F), while the minimum temperature remains at a consistent 19°C (67°F). Despite the pleasant warmth, December experiences significant rainfall, totaling 144 mm (5.7 in) over 14 days, contributing to a humidity level of 80%.
In contrast, April offers slightly cooler conditions with an average temperature of 23°C (74°F) and similar minimum and maximum temperatures of 19°C (67°F) and 30°C (86°F), respectively. The month sees a reduction in precipitation to 122 mm (4.8 in) over the same number of rainy days, leading to a slightly higher humidity of 84%. These differences create a transition from the wetter, warmer December to the milder and somewhat drier April. For more detailed information, check out Ilhabela weather in April.
December and May present distinct weather patterns, showcasing the transition from the end of the year to mid-year. In December, temperatures range from a minimum of 19°C (67°F) to a maximum of 29°C (85°F), with an average of 24°C (75°F). This month experiences higher precipitation at 144 mm (5.7 in) over 14 days, combined with a humidity level of 80%. In contrast, May offers slightly cooler conditions with temperatures ranging from 16°C (61°F) to a maximum of 28°C (83°F) and an average of 22°C (72°F). Precipitation decreases to 133 mm (5.2 in) over 12 days, and humidity remains comparable at 79%. For a detailed look at the weather in May, you can explore Ilhabela weather in May.
In December, the weather is typically warmer, with temperatures ranging from a minimum of 19°C (67°F) to a maximum of 29°C (85°F), and an average temperature of 24°C (75°F). This month also sees higher precipitation, with 144 mm (5.7 in) of rainfall over 14 days and humidity levels around 80%. In contrast, June presents milder temperatures, featuring a minimum of 17°C (62°F) and a maximum of 28°C (83°F), with an average temperature of 21°C (71°F). Rainfall in June totals 112 mm (4.4 in) over 12 days, and the humidity is slightly lower at 77%. For more detailed information on the climate, you can check Ilhabela weather in June.
In December, the weather is generally warmer and more humid than in July, with average temperatures ranging from a mild 24°C (75°F) to a high of 29°C (85°F). The month also sees considerable precipitation, with about 144 mm (5.7 in) falling over 14 days, contributing to a humidity level of 80%. In contrast, July experiences cooler temperatures, with an average of 20°C (69°F) and minima as low as 13°C (56°F). Rain is less frequent, with only 68 mm (2.7 in) of precipitation over just 6 days, resulting in a lower humidity of 72%. For a detailed look at July conditions, you can explore Ilhabela weather in July.
December tends to be warmer and more humid than August, with average temperatures ranging from 24°C (75°F) to a maximum of 29°C (85°F), compared to August's cooler average of 20°C (68°F) and maximum of 28°C (83°F). Additionally, December experiences higher precipitation, with 144 mm (5.7 in) over 14 days, while August has slightly less at 126 mm (5.0 in) over 13 days. This increased humidity in December, at 80%, contributes to a more tropical feel compared to the drier, 65% humidity in August. For more details on August weather patterns, you can visit Ilhabela weather in August.
In December, the weather tends to be warmer and more humid compared to September, with average temperatures ranging from a minimum of 19°C (67°F) to a maximum of 29°C (85°F). This month's humidity is notably high at 80%, contributing to a more tropical feel, while precipitation averages 144 mm (5.7 in) over 14 days, making it one of the wetter months. In contrast, September experiences milder temperatures with a minimum of 16°C (61°F) and a maximum of 30°C (86°F), accompanied by lower humidity at 58%. Additionally, September sees less rainfall, with a total of 101 mm (4.0 in) over 12 days. For a detailed look at the weather patterns in September, you can check Ilhabela weather in September.
In comparing December and October weather, December tends to be slightly warmer with average temperatures ranging from a minimum of 19°C (67°F) to a maximum of 29°C (85°F). In contrast, October experiences lower average temperatures, with a minimum of 17°C (63°F) and a maximum of 32°C (91°F). While December has higher humidity at 80%, October boasts a much lower humidity level of 50%, making it feel more comfortable despite slightly higher precipitation levels—144 mm (5.7 in) in December versus 160 mm (6.3 in) in October. Additionally, October sees rain over 19 days, compared to 14 days in December. For more details, you can visit Ilhabela weather in October.
In December, the weather remains warm, with average temperatures ranging from a minimum of 19°C (67°F) to a maximum of 29°C (85°F), slightly warmer than November, which sees a minimum of 18°C (65°F) and the same maximum of 29°C (84°F). While both months experience significant humidity, December has a slightly higher rate at 80%, compared to November's 75%. Precipitation is also notable; December receives 144 mm (5.7 in) over 14 days, while November has a greater rainfall of 171 mm (6.7 in) across 17 days. This means that although December is somewhat drier and warmer, both months reflect the tropical climate typical of the region. For more details on November weather, visit Ilhabela weather in November.
As the festive spirit of December rolls in, Ilhabela transforms into a tropical paradise, characterized by warmer temperatures and a lively atmosphere. This month stands out with its average highs reaching a pleasant 29°C, making it an ideal time for beachgoers and outdoor enthusiasts alike. However, December also brings increased humidity and occasional rainfall, with about 14 days experiencing some form of precipitation. This combination creates a lush, vibrant environment that encourages lush greenery and vibrant wildlife, distinguishing December’s weather from the cooler, drier months that precede it. To explore more about the unique climate patterns of this enchanting island, visit Ilhabela Climate.