Last updated: August 21, 2025
In December, Itanhaém, Brazil, experiences warm tropical weather, with maximum temperatures reaching 29°C (85°F) and an average of 24°C (75°F). Minimum temperatures hover around 19°C (67°F), providing a comfortable atmosphere for residents and visitors alike. While the humidity is notably high at 87%, the month also sees significant rainfall, with total precipitation reaching 162 mm (6.4 in) over approximately 19 days. This blend of warmth and moisture contributes to the lush landscapes characteristic of this charming coastal city.
In December, Itanhaém, Brazil, welcomes the summer heat with mild nights and warm days, setting a vibrant stage for holiday festivities. With minimum temperatures around 19°C (67°F) and averages peaking at 24°C (75°F), residents and visitors alike experience pleasant weather ideal for outdoor activities. The maximum temperatures, reaching up to 29°C (85°F), reflect a gradual rise towards the sweltering heat of January and February. This pattern is consistent as December serves as a transition into the hotter months, showcasing Itanhaém's inviting climate perfect for sun-seekers and beach lovers.
In December, Itanhaém experiences an average precipitation of 162 mm (6.4 in) over 19 days, marking a transition into the wetter summer months. Interestingly, December's rainfall is slightly lower than the peaks of the preceding months of February and March but remains consistent with the overall trend of increased rainfall from late spring into early summer. As the year comes to a close, the precipitation helps to nourish the lush coastal environment, setting the stage for a vibrant landscape in the new year. With the festive season coinciding with this mix of rain and warmth, December becomes an enchanting time where the beauty of the tropics truly shines through.
In December, Itanhaem experiences a notable resurgence in humidity, reaching 87%, a trend that echoes the higher moisture levels typical of earlier months. After a gradual decline through the drier months of October and August, where humidity dipped to as low as 76%, December marks a pivot back towards the more humid conditions seen at the year's start. This seasonal shift sees humidity levels maintain a close resemblance to those of February and November, suggesting a lush coastal climate that likely enhances the region's vibrant flora and contributes to a rich, tropical atmosphere during this time. The consistent humidity helps to create a warm, inviting environment perfect for enjoying the beauty of Itanhaem's beaches and natural landscapes.
In December, Itanhaem experiences an intense UV Index of 15, classified as extreme, with a quick burn time of only 10 minutes. This peak coincides with the highest levels recorded throughout the year, as January and February also showcase severe UV conditions with indices of 15 and 14, respectively. As the seasons shift from the sun-drenched summer months into autumn, the UV Index begins to gradually decrease, dipping to a very high level of 10 in April before stabilizing in the moderate range during the cooler months of June and July. However, December's harsh UV rays serve as a reminder for residents and visitors alike to prioritize sun safety. For a detailed view, check out the Itanhaem UV Index.
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As December arrives in Itanhaem, Brazil, the sun shines brighter than ever, with an impressive 328 hours of glorious sunshine, marking the peak of the year. This month stands out against the backdrop of the annual sunshine pattern, which showcases a gradual increase from the 258 hours in January to November's 301 hours. The steady climb in sunshine hours throughout the year culminates in December, highlighting the allure of summer in this coastal paradise. It’s a time when the vibrant beaches come alive, inviting locals and tourists alike to bask in the warmth and relish the long, sun-soaked days. As the year wraps up, December not only delivers abundant sunshine but also a promise of relaxation and joy underneath the clear blue skies.
As December approaches in Itanhaém, Brazil, residents can expect a 41% chance of sunny weather, keeping in line with the trends of the previous months. While this percentage is notably lower than the peak sunshine likelihood of 53% found in July, it still suggests a pleasant mix of sun and clouds as we transition into the summer season. Unlike the sunniest months of February and April, which boast chances above 40%, December offers a balanced outlook, inviting both residents and visitors to enjoy the festive charm of the coastal town. Overall, the consistency in sunny days throughout late spring and early summer positions December as a reliable, albeit slightly unpredictable, time for outdoor activities.
As the year draws to a close, December in Itanhaém, Brazil, boasts an ample 13 hours of daylight, matching the brightness of January and November. The graph of daylight duration shows a gentle decline from the summer months, with 12 hours in February and March, tapering down to a more modest 10 hours during the winter months of May through July. With an increase in hours from August onwards, December not only welcomes the summer solstice come summer but also transitions seamlessly from the shorter days of late autumn. This rhythm of bright days highlights the unique climatic shifts in Itanhaém, where daylight serves as a vibrant backdrop to the holiday season.
In December, Itanhaem, Brazil, experiences a gentle breeze with an average wind speed of 3.4 m/s (8 mph). This marks a subtle decrease from the gusty conditions of October, which boasted the highest wind speeds at 4.6 m/s (10 mph). As the year comes to a close, December's winds remain consistent, reflecting a trend of moderate breezes that have been building since the milder months of January through July, when average speeds hovered around 2.7 to 3.1 m/s (6 to 7 mph). The overall climatic shift toward higher wind speeds in late spring and early summer gradually settles into balanced conditions in December, making it a delightful time for outdoor enthusiasts to enjoy the refreshing air along the beautiful coastline.
Weather in Itanhaem varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Itanhaem, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January both feature warm temperatures, but January tends to be slightly hotter. 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). In contrast, January sees a minimum of 21°C (70°F) and can reach up to 32°C (89°F), with an average temperature of 26°C (79°F). Precipitation levels also increase slightly from December, with December recording 162 mm (6.4 in) over 19 days, while January has 175 mm (6.9 in) spread over 20 days, resulting in higher humidity levels in January at 89% compared to December's 87%. For more detailed information, you can check Itanhaem weather in January.
In comparing the weather of December and February in Itanhaém, we observe a noticeable increase in temperatures. December features a minimum temperature of 19°C (67°F) and a maximum of 29°C (85°F), with an average of 24°C (75°F). In contrast, February sees slightly warmer conditions, with minimums reaching 21°C (70°F) and maximums climbing to 31°C (88°F), averaging 25°C (78°F). Additionally, February experiences higher precipitation at 253 mm (10.0 in), compared to December's 162 mm (6.4 in), and more days of rainfall, with 21 days in February versus 19 in December. Humidity remains constant at 87% for both months. For a detailed look at February weather in Itanhaém, check out Itanhaem weather in February.
In December, the weather features a warm average temperature of 24°C (75°F), with a maximum of 29°C (85°F) and a minimum of 19°C (67°F). This month experiences considerable rainfall, totaling 162 mm (6.4 in) over 19 days, coupled with high humidity at 87%. In contrast, March tends to be slightly warmer, with an average temperature of 25°C (77°F) and daytime highs reaching 32°C (90°F). However, it also sees increased precipitation, amounting to 236 mm (9.3 in) and rainfall on 22 days, while maintaining a similar humidity level of 86%. To explore more about the climate during this time, check out Itanhaem weather in March.
When comparing the weather in December and April, both months exhibit warm temperatures, but there are some notable differences. December has a slightly higher average maximum temperature of 29°C (85°F) compared to April's 30°C (87°F), while its minimum temperature averages around 19°C (67°F), just a degree warmer than April’s 18°C (66°F). In terms of precipitation, December receives a bit more rainfall, totaling 162 mm (6.4 in) over 19 days, whereas April sees 154 mm (6.0 in) spread over 16 days. Humidity levels are also slightly higher in December at 87% compared to April's 84%. For those interested in more specific weather details for April, you can check out Itanhaem weather in April.
In December, the weather tends to be warmer and more humid compared to May, with average temperatures reaching 24°C (75°F) and daily highs peaking at 29°C (85°F). This month also experiences significant rainfall, totaling 162 mm (6.4 in) over 19 days, resulting in a humidity level of 87%. In contrast, May brings slightly cooler temperatures, with an average of 21°C (71°F) and a maximum of 28°C (84°F). The precipitation in May is less, at 138 mm (5.4 in) over 13 days, and the humidity is a touch lower at 84%. For more detailed weather information, you can visit Itanhaem weather in May.
In December, the weather tends to be warmer and more humid compared to June, with average temperatures ranging from a minimum of 19°C (67°F) to a maximum of 29°C (85°F). December also experiences more rainfall, accumulating about 162 mm (6.4 in) over 19 days, and maintaining high humidity levels at 87%. In contrast, June sees slightly cooler temperatures, with lows of 15°C (59°F) and an average high of 29°C (85°F), while precipitation is lower at 135 mm (5.3 in) across 13 days. Humidity is also reduced in June, averaging 82%. For detailed insights on June weather, visit Itanhaem weather in June.
In December, the weather is notably warmer, 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). However, it is also a much wetter month, experiencing 162 mm (6.4 in) of precipitation over 19 days, along with high humidity at 87%. In contrast, July features cooler temperatures, with minimums of 11°C (52°F) and an average of 19°C (67°F), peaking at 29°C (84°F). Rainfall is significantly lower in July, with only 76 mm (3.0 in) occurring over 8 days, and humidity at 80%. For a closer look at July's weather specifics, you can visit Itanhaem weather in July.
In December, the weather is typically warmer and more humid compared to August. December boasts minimum temperatures around 19°C (67°F) and averages around 24°C (75°F), while August has a cooler minimum of 14°C (57°F) and an average of 19°C (66°F). Both months can reach a maximum of 29°C (85°F), but December experiences significantly higher humidity at 87%, compared to August's 78%. Additionally, December receives more precipitation, averaging 162 mm (6.4 in) over 19 days, whereas August sees about 120 mm (4.7 in) over 12 days. For a detailed overview of August weather, you can visit Itanhaem weather in August.
In comparing the weather of December and September, December tends to be warmer and more humid. The average temperature in December is around 24°C (75°F), with highs reaching up to 29°C (85°F), while September has a slightly cooler average of 20°C (69°F) and can peak at 31°C (88°F). December also experiences significantly more rainfall, with 162 mm (6.4 in) over 19 days, compared to September's 88 mm (3.5 in) over 13 days. Additionally, the humidity is higher in December at 87%, versus 78% in September. For more details about the weather in September, you can visit Itanhaem weather in September.
When comparing the weather in December to October, December experiences slightly warmer temperatures, with an average of 24°C (75°F) compared to October’s average of 22°C (71°F). However, October can have hotter days, reaching a maximum of 31°C (88°F) versus December’s maximum of 29°C (85°F). Precipitation is also notable in both months, but October has higher totals, with 184 mm (7.2 in) over 20 days, while December totals 162 mm (6.4 in) across 19 rainy days. Additionally, December has a higher humidity level at 87% compared to October's 76%. For more detailed insights, check out the link: Itanhaem weather in October.
In December, the weather in Itanhaém is characterized by slightly warmer temperatures, with a minimum of 19°C (67°F) and an average of 24°C (75°F), compared to November's minimum of 17°C (63°F) and average of 22°C (72°F). The maximum temperatures also rise, reaching 29°C (85°F) in December versus 27°C (82°F) in November. Precipitation increases in December to 162 mm (6.4 in) over 19 days, which is a bit higher than November’s 134 mm (5.3 in), also spread across 19 days. Humidity remains relatively high in both months, with December at 87% and November slightly lower at 85%. For a detailed overview of the weather during November, you can check Itanhaem weather in November.
December in Itanhaém ushers in a delightful shift in weather, characterized by warmer temperatures that reach a comfortable average of 24°C (75°F). Unlike the cooler months preceding it, December offers a notable increase in humidity, making the air feel more vibrant and alive. Although it experiences considerable rainfall, with precipitation on about 19 days throughout the month, it's a crucial part of the region's lush landscape. This blend of warmth and moisture sets December apart, encouraging an outdoorsy spirit and vibrant local festivities. For a more detailed understanding of Itanhaém's weather patterns, explore Itanhaem Climate.