Last updated: August 21, 2025
In Porto Belo, Brazil, December ushers in a vibrant summer atmosphere characterized by warm temperatures and lush greenery. With maximum highs reaching 33°C (92°F) and an average temperature settling around 24°C (75°F), the warmth invites beachgoers and tourists alike to bask in the sun. However, the minimum temperature can dip to a refreshing 16°C (61°F) during the cooler evenings. Rainfall is also a defining feature this month, as the region experiences approximately 144 mm (5.7 in) of precipitation over 17 days, resulting in a humidity level of 88% that enriches the air and enhances the surrounding landscape. Embrace the dynamic weather of Porto Belo in December, where every day promises a new experience amid the tropical embrace of summer.
In December, Porto Belo, Brazil experiences a pleasant transition into summer, with temperatures ranging from a mild 16°C (61°F) at night to a warm 33°C (92°F) during the day. The average temperature settles around 24°C (75°F), making it an inviting time to enjoy the beautiful beaches and vibrant outdoor activities. As the year draws to a close, the warmth notably contrasts with the cooler months preceding it, particularly in July and June, when temperatures dipped into the single digits. With the steady increase in warmth from November’s highs of 31°C (88°F), December presents a perfect backdrop for relaxation and celebration under the sun.
In December, Porto Belo experiences notable precipitation, with an average rainfall of 144 mm (5.7 in) spread over 17 days. This marks a slight increase from November's 98 mm, as the region transitions from the drier months into a wetter, more tropical climate. Interestingly, December's rainfall is on par with February’s, indicating a consistent monthly pattern of precipitation during the summer months. The increase in rainy days compared to the preceding months hints at the development of thunderstorms typical for this time of year, contributing to Porto Belo's lush landscapes. As the year draws to a close, residents and visitors alike can expect dynamic weather, marked by vibrant rainfall that nourishes the region’s natural beauty.
In December, Porto Belo, Brazil experiences a notable rise in humidity, reaching 88%, the highest level of the year. This increase reflects a trend of heightened moisture that begins as winter transitions into the summer months. Following relatively consistent humidity levels throughout the fall, where averages hover around 82% to 86%, December marks a significant uptick, leading into the wetter summer season. As the year draws to a close, this gradual shift not only signifies the approach of warmer temperatures but also frames the lush, vibrant environment that defines Porto Belo during its peak tourist months.
In December, Porto Belo experiences one of its peak UV Index ratings at 15, categorizing exposure as extreme with a dangerously short burn time of just 10 minutes. This trend of high UV levels is consistent with the tail end of the year, where both November and October also registered extreme values of 14 and 12, respectively. As we move through the year, it’s clear that the summer months of January and February push UV levels to their highest, often hovering around 15 and 14. Interestingly, from May to July, the index drops significantly, entering a moderate to high range, offering some respite from the intense summer sun. However, as the year closes, residents and visitors should remain vigilant against the potentially harmful effects of UV radiation. For more insights on managing sun exposure, visit Porto Belo UV Index.
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December in Porto Belo, Brazil, shines as the sunniest month of the year, boasting an impressive 340 hours of glorious sunshine. This remarkable peak follows a gradual ascent from November’s 314 hours, reinforcing the idea of a radiant summer on the horizon. The preceding months reveal a pattern of fluctuating sunshine hours, with early months like January (251 hours) and May (253 hours) offering fewer sunlit days that gradually increase as the year progresses. As daylight grows longer, Porto Belo transforms into a vibrant paradise, making December not only the sunniest but also a symbolic celebration of the warm, tropical essence that defines this captivating coastal haven.
In December, Porto Belo experiences a 38% chance of sunny weather, marking a favorable increase as the year winds down. While January starts the year with a low 18% likelihood of sun, the probability steadily improves throughout the months, peaking at 57% in July. This upward trend illustrates that as summer approaches in the southern hemisphere, so does the sunshine, with December sitting comfortably above several months like January and November. Outdoor enthusiasts can expect a mix of sunny days amidst the festive atmosphere, making it a delightful time to enjoy the vibrant coastal scenery.
In Porto Belo, Brazil, December shines brightly with 13 hours of daylight, mirroring the longer days of January and November. This trend of ample daylight during the peak of summer fosters a vibrant atmosphere, perfect for beach outings and outdoor festivities. As the year progresses from February to April, daylight gradually decreases, dipping to a cozy 11 hours by April. The shorter days of winter from May to July hold steady at 10 hours, creating a serene ambiance ideal for relaxing evenings. However, as spring arrives in August, daylight bounces back to 11 hours, continuing the gentle ascent until reaching its zenith once again in December. This rhythmic fluctuation in daylight not only marks the changing seasons but also enriches the natural beauty of this coastal gem.
As December settles over Porto Belo, Brazil, the average wind speed registers at 3.7 m/s (8 mph), maintaining a steady breeze that's characteristic of the region. This month reflects a slight increase from the windier periods earlier in the year, particularly from October's peak of 3.9 m/s (9 mph). It's intriguing to note that the wind speeds throughout the year tend to fluctuate modestly, ranging from 2.7 m/s (6 mph) in the calmer July to 3.9 m/s (9 mph) in October, suggesting a dynamic climate influenced by seasonal shifts. The consistency of December's winds hints at an ideal environment for thoughtful beach strolls and invigorating outdoor activities, inviting both locals and visitors to embrace the warmth of summer alongside a gentle, refreshing breeze.
Weather in Porto Belo varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Porto Belo, focusing on differences in temperature, rainfall, humidity, and UV levels.
December weather in Porto Belo is characterized by a warm climate, with minimum temperatures around 16°C (61°F) and an average of 24°C (75°F), peaking at 33°C (92°F). The month experiences considerable rainfall, with 144 mm (5.7 in) spread over 17 days and humidity levels reaching 88%. In contrast, January sees slightly higher temperatures, with minimums of 19°C (67°F) and an average of 25°C (78°F), while maximum temperatures can climb to 35°C (96°F). Precipitation increases to 172 mm (6.8 in) over 18 days, accompanied by a humidity level of 86%. Overall, while both months are warm and humid, January is typically hotter and slightly wetter. For more detailed information, visit Porto Belo weather in January.
In December, the weather in Porto Belo features a minimum temperature of 16°C (61°F) and averages around 24°C (75°F), reaching a maximum of 33°C (92°F). The month experiences significant rainfall, totaling 144 mm (5.7 in) over 17 days, along with high humidity levels at 88%. In contrast, February shows a slight warming trend, with minimum temperatures at 17°C (63°F) and an average of 25°C (77°F), peaking at 35°C (95°F). While precipitation remains the same at 144 mm (5.7 in), it falls over one less day for the month, totaling 16 days, and humidity is lower at 83%. For more detailed information about the weather in February, you can check Porto Belo weather in February.
In December, the weather is characterized by warm temperatures, with a minimum of 16°C (61°F), an average of 24°C (75°F), and a maximum of 33°C (92°F). The month sees significant rainfall, with 144 mm (5.7 in) spread over 17 days and an average humidity of 88%. In contrast, March maintains a similar average temperature of 24°C (76°F) but experiences slightly higher minimums at 19°C (66°F) and a maximum of 32°C (91°F). While precipitation decreases to 134 mm (5.3 in) over 21 days, the humidity also drops a bit to 85%. For more detailed information on the conditions in March, you can check Porto Belo weather in March.
December weather in Porto Belo is characterized by warmer temperatures, with minimums around 16°C (61°F) and maximums reaching 33°C (92°F), making it one of the warmest months of the year. Additionally, December experiences higher humidity at 88% and significantly more precipitation, averaging 144 mm (5.7 inches) over about 17 days. In contrast, April brings milder conditions, with minimum temperatures around 13°C (57°F) and maximums near 30°C (87°F). Rainfall in April is also lower, totaling around 80 mm (3.1 inches) over 14 days, and humidity decreases slightly to 85%. For more information on April weather in Porto Belo, visit Porto Belo weather in April.
When comparing the weather in December and May, significant differences become apparent. December experiences warmer temperatures, with a minimum of 16°C and an average high of 33°C, whereas May is cooler, with a minimum of 10°C and a maximum of 30°C. Precipitation is more abundant in December, totaling 144 mm across 17 days, compared to May's 103 mm over 13 days. Additionally, the humidity level in December is slightly higher at 88%, compared to May's 86%. For further details on May weather, you can check Porto Belo weather in May.
When comparing the weather in December and June, December tends to be much warmer and more humid. In December, temperatures range from a minimum of 16°C (61°F) to a maximum of 33°C (92°F), with an average of 24°C (75°F), accompanied by high humidity at 88%. In contrast, June sees much cooler temperatures, with a minimum of 8°C (46°F) and a maximum of 28°C (83°F), averaging at 18°C (65°F). Precipitation also varies, as December experiences 144 mm (5.7 in) over 17 days, while June receives 116 mm (4.6 in) across 11 days. For a detailed look at June's climate, visit Porto Belo weather in June.
In December, the weather in Porto Belo is considerably warmer and more humid, with afternoon temperatures soaring up to 33°C (92°F) and an average of 24°C (75°F). This month also experiences higher precipitation, with 144 mm (5.7 in) spread over 17 days, resulting in a humid atmosphere of 88%. In contrast, July brings a much cooler climate, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 27°C (81°F), and only 45 mm (1.8 in) of rain over six days. The humidity is slightly lower at 80%. For more information, check out Porto Belo weather in July.
When comparing the weather in December and August, it’s evident that December experiences warmer temperatures with a significant average of 24°C (75°F) compared to August's cooler average of 17°C (63°F). While December's max temperature can reach as high as 33°C (92°F), August peaks at a more moderate 27°C (80°F). Additionally, December is characterized by higher humidity levels at 88% and more frequent rainfall, totaling 144 mm (5.7 in) over 17 days, compared to August's 63 mm (2.5 in) accumulated across just 9 days. For further details about weather patterns in August, please visit Porto Belo weather in August.
In comparing the weather of December and September, December tends to be significantly warmer, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 33°C (92°F), compared to September's milder range of 12°C (53°F) to 27°C (81°F). Additionally, December experiences more precipitation, with 144 mm (5.7 in) falling over 17 days, while September sees less rainfall at 85 mm (3.3 in) across 12 days. Humidity levels are also higher in December at 88%, compared to September's 82%, making December feel more humid overall. For a more detailed look at September's weather, you can visit Porto Belo weather in September.
In comparing the weather between December and October, December exhibits slightly warmer temperatures, with a minimum of 16°C (61°F) and an average of 24°C (75°F), while October has a minimum temperature of 13°C (57°F) and an average of 21°C (70°F). The maximum temperatures are also higher in December, reaching up to 33°C (92°F) compared to October's peak of 31°C (89°F). Both months experience significant rainfall, with December receiving 144 mm (5.7 in) of precipitation over 17 days, slightly more than October's 127 mm (5.0 in) over 16 days. Additionally, December has a higher humidity level at 88%, while October sits at 82%. For more details, check out Porto Belo weather in October.
In December, the weather in Porto Belo is typically warmer compared to November, with minimum temperatures rising to 16°C (61°F) and average highs reaching 33°C (92°F). Conversely, November offers slightly cooler temperatures, with lows around 14°C (57°F) and a maximum of 31°C (88°F). Additionally, December experiences more precipitation, totaling 144 mm (5.7 in) over 17 days, compared to November's 98 mm (3.9 in) over 15 days. The humidity is also slightly higher in December at 88%, compared to 86% in November. For a more detailed look at the weather in November, visit Porto Belo weather in November.
As December rolls into Porto Belo, the weather transforms into a delightful blend of warmth and humidity, setting the stage for a vibrant summer atmosphere. With temperatures reaching their peak and a higher chance of rainfall, it’s a month where the town comes alive with lush greenery and festive spirit. While the average warmth encourages beachgoers to bask in the sun, the frequent rain showers remind us of nature's refreshing cycle. The high humidity, typical of the season, creates a tropical ambiance unlike any other month. For a deeper understanding of how Porto Belo's weather fluctuates throughout the year, explore more at Porto Belo Climate.