Last updated: August 21, 2025
December in São Miguel do Iguaçu, Brazil, presents a warm and humid climate, characterized by maximum temperatures soaring to 37°C (99°F). The average temperature settles around a pleasant 26°C (79°F), making it a perfect time for outdoor activities, despite occasional rain. Visitors can expect about 138 mm (5.5 in) of precipitation over 12 rainy days, contributing to the lush landscapes that define this region. With humidity levels reaching 85%, it's advisable to stay hydrated and seek shade during peak hours while enjoying the vibrant local culture and stunning natural attractions.
In December, São Miguel do Iguaçu basks in a warm embrace, with temperatures ranging from a comfortable 15°C (59°F) at night to a balmy 37°C (99°F) during the day. This month marks the transition into summer, maintaining an average high of 26°C (79°F), which is consistent with the mild warmth seen in November. December continues the upward trend in temperatures seen since the cooler months of April and May, creating the perfect climate for travelers looking to explore the stunning Iguaçu Falls and vibrant surroundings. With such inviting weather, it's no wonder that this time of year attracts visitors seeking both adventure and relaxation in this beautiful part of Brazil.
In December, Sao Miguel do Iguacu experiences a significant increase in precipitation, with 138 mm (5.5 in) of rainfall accumulated over approximately 12 days. This marks a continuation of the wet season, following a notably rainy October which saw the highest monthly total of 180 mm (7.1 in). Compared to the drier months of July and August, December's conditions showcase a vibrant shift, as the region prepares for the summer months ahead. This trend of relatively high rainfall in December, juxtaposed with a substantial spike in January, suggests a robust pattern of seasonal precipitation that characterizes the area's climate. Overall, December serves as a pivotal transition month, where the lush landscapes are nourished and the region gears up for the peak of its rainy season.
As December rolls in Sao Miguel do Iguacu, Brazil, the humidity levels experience a notable increase, peaking at 85%. This rise reflects a broader trend throughout the year, where humidity starts relatively high in January and gradually decreases to its lowest point in August at 49%, only to climb again towards the year's end. The transition from the dry months of July and August to the wetter conditions of late spring and early summer highlights the region's fluctuating climate, with December standing out as particularly humid. This elevated moisture can contribute to the lush greenery that defines this beautiful area, making it a vibrant time for the local landscape.
In December, Sao Miguel do Iguacu experiences a UV Index of 14, categorizing it as extreme with a burn time of just 10 minutes. This trend continues from the previous months, where both January and November maxed out at a UV Index of 15, emphasizing the region's intense sun exposure during the peak summer months. Following a slight dip in April and May, the index rises again, reflecting a consistent pattern of high to extreme UV levels throughout the year. Residents and visitors alike should remain vigilant and prioritize sun protection, especially when the UV index is on the higher end. For more information on UV levels throughout the year, check out Sao Miguel do Iguacu UV Index.
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December in Sao Miguel do Iguacu is a true gem, boasting an impressive 346 hours of sunshine—the highest of the year. This radiant month follows November's already bright 320 hours, marking a splendid transition into the summer season. As days grow longer and warmer, December’s sunlight surpasses both the preceding months and the tail end of the year, setting the stage for a vibrant holiday season. In contrast, the earlier months, particularly the cooler June with only 232 hours, highlight the significant uplift in brightness this time of year brings. Overall, December serves as a shining testament to the region's sun-kissed allure, inviting visitors to bask in its warmth amidst stunning landscapes.
In December, Sao Miguel do Iguacu enjoys a delightful 74% chance of sunny weather, marking a peak in the sun's allure for the year. This trend indicates a significant shift from the more variable conditions seen earlier in the year, particularly October, which sees only a 41% chance of sunshine. As the year comes to a close, the likelihood of clear skies increases, following a consistent rise from November's 54% and echoing the sun-soaked warmth of the preceding months like July and February, both hitting 67%. This bright forecast makes December an ideal time for outdoor adventures and soaking in the stunning natural beauty of this Brazilian gem.
In Sao Miguel do Iguacu, Brazil, the shifting daylight duration reflects the transition from summer to winter. January and December each bask in 13 hours of daylight, offering long, sunny days. As the year progresses, daylight gradually decreases, dipping to 12 hours in February and March, before reaching its annual low of 10 hours from May through July. The return to longer days highlights the region's revival, with daylight extending again to 11 hours in August and September and regaining strength as the year concludes. This gentle ebb and flow of daylight enhances the beauty of the landscape and invites both locals and visitors to revel in the natural light that defines this vibrant locale.
As December settles over São Miguel do Iguaçu, the wind speed gently averages around 2.5 m/s (6 mph), reflecting a decline from the breezier heights of earlier months. This month typically ushers in a mild transition, following a peak in September when winds reached 3.2 m/s (7 mph). In the heart of summer, from December's perspective, the winds seem to mellow, bringing a serene calm to the landscape. Over the past year, the wind patterns have ranged from a notable increase during the late winter months to a gentle tapering off as the year concludes, hinting at the dynamic interplay between the seasons in this vibrant Brazilian locale.
Weather in Sao Miguel do Iguacu varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Sao Miguel do Iguacu, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, temperatures in São Miguel do Iguaçu range from a minimum of 15°C (59°F) to a maximum of 37°C (99°F), with an average temperature of 26°C (79°F). The month experiences significant rainfall, totaling 138 mm (5.5 in) across 12 days, while humidity levels are relatively high at 85%.
In contrast, January sees a slight increase in temperature with a minimum of 17°C (62°F) and a maximum of 39°C (102°F), maintaining the same average of 26°C (80°F). Precipitation levels rise slightly to 142 mm (5.6 in) over 16 days, and humidity decreases to 82%. For more detailed information on January weather, visit Sao Miguel do Iguacu weather in January.
In December, the weather in Sao Miguel do Iguacu is characterized by warm temperatures, ranging from a minimum of 15°C (59°F) to a maximum of 37°C (99°F), with an average of around 26°C (79°F). The month experiences higher precipitation levels, with 138 mm (5.5 in) of rain over approximately 12 days, contributing to a humidity level of 85%. Conversely, February shares the same temperature range but sees a decrease in precipitation, with 99 mm (3.9 in) falling over just 9 days, resulting in slightly lower humidity at 79%. For more detailed information, you can check out Sao Miguel do Iguacu weather in February.
December and March showcase similar warm climates, but with some distinct differences. December experiences slightly higher temperatures, with an average of 26°C (79°F) and a maximum reaching up to 37°C (99°F), while March sees a minor drop to an average of 25°C (78°F) and a maximum of 36°C (96°F). Both months have considerable precipitation, with December recording 138 mm (5.5 in) over 12 days and March showing 109 mm (4.3 in) across 11 days. Additionally, humidity is higher in December at 85%, compared to March's 75%, contributing to a more humid feel at the end of the year. For more detailed information, you can check Sao Miguel do Iguacu weather in March.
When comparing the weather conditions of December and April, distinct differences emerge in temperature and precipitation levels. December features a warmer climate, with minimum temperatures around 15°C (59°F) and maximums soaring up to 37°C (99°F), resulting in a high average of 26°C (79°F). Additionally, the month is characterized by significant rainfall, totaling 138 mm (5.5 in) over roughly 12 days, coupled with high humidity levels at 85%. In contrast, April experiences milder temperatures, with a minimum of 9°C (48°F) and a maximum of 34°C (94°F), averaging 23°C (73°F). The rainfall in April is lower, at 83 mm (3.3 in) across only 6 days, and humidity is reduced to 74%. For a more detailed look at weather specifics, visit Sao Miguel do Iguacu weather in April.
December and May showcase contrasting weather patterns. In December, temperatures range from a minimum of 15°C (59°F) to a scorching maximum of 37°C (99°F), with an average temperature of 26°C (79°F). The month experiences significant rainfall, totaling 138 mm (5.5 in) over 12 days, coupled with high humidity at 85%. In contrast, May presents milder temperatures, with a minimum of 7°C (45°F), an average of 20°C (68°F), and a maximum of 32°C (91°F). Rainfall is slightly less at 134 mm (5.3 in) over 10 days, and humidity drops to 75%. For a closer look at the weather in May, you can visit Sao Miguel do Iguacu weather in May.
In comparison, the weather in December is significantly warmer than in June. With average temperatures ranging from a minimum of 15°C (59°F) to a maximum of 37°C (99°F) and high humidity at 85%, December presents a tropical climate. Conversely, June experiences much cooler temperatures, with averages between 2°C (37°F) and 30°C (87°F), along with lower humidity levels at 70%. While precipitation in December is slightly less frequent, with rain over 12 days totaling 138 mm (5.5 in), June has 9 rainy days but slightly more total precipitation at 142 mm (5.6 in). For more details, you can check Sao Miguel do Iguacu weather in June.
December and July exhibit stark contrasts in weather conditions. In December, temperatures soar with a minimum of 15°C (59°F) and an average high reaching a scorching 37°C (99°F), accompanied by high humidity at 85% and substantial rainfall totaling 138 mm (5.5 in) over 12 days. In contrast, July experiences much cooler weather, with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 31°C (88°F), much lower humidity at 61%, and only 37 mm (1.5 in) of precipitation spread over just 4 days. For a deeper look into July's climate specifics, visit Sao Miguel do Iguacu weather in July.
When comparing the weather in December and August, the differences are quite striking. December features a much warmer temperature range, with a minimum of 15°C (59°F) and an average of 26°C (79°F) compared to August's cooler minimum of 3°C (38°F) and average of 19°C (67°F). The maximum temperatures in December can soar to 37°C (99°F), while August peaks at a more moderate 34°C (94°F). Additionally, December experiences higher levels of precipitation, with 138 mm (5.5 in) over about 12 days, versus August's 84 mm (3.3 in) across just 7 days. Humidity levels also differ significantly; December's humidity is around 85%, making it feel more oppressive, while August's 49% offers a drier atmosphere. For more detailed insights, check out Sao Miguel do Iguacu weather in August.
In comparing the weather between December and September, December is generally warmer and more humid. With minimum temperatures around 15°C (59°F), an average of 26°C (79°F), and maximums reaching 37°C (99°F), December experiences higher temperatures than September, which ranges from a minimum of 10°C (50°F) to a maximum of 38°C (100°F) and an average of 23°C (74°F). Additionally, December has significantly more rainfall, with 138 mm (5.5 in) over about 12 days, compared to September's 78 mm (3.1 in) across just 6 days. This increased precipitation contributes to December's higher humidity level of 85%, while September boasts a much drier 52%. For more details on September weather, you can visit Sao Miguel do Iguacu weather in September.
In comparing the weather between December and October, December tends to be warmer with average temperatures reaching 26°C (79°F), while October has a slightly lower average of 24°C (75°F). However, October can experience extreme highs of up to 40°C (105°F), compared to December's maximum of 37°C (99°F). Precipitation levels are notably higher in October, with 180 mm (7.1 in) recorded, compared to 138 mm (5.5 in) in December, although both months see rainfall on approximately 12 days. Additionally, December boasts a higher humidity of 85%, whereas October has a more comfortable humidity level of 55%. For more detailed insights on October weather, you can refer to Sao Miguel do Iguacu weather in October.
In comparing the weather of December and November, December tends to be slightly warmer, with average temperatures reaching 26°C (79°F) compared to November's 25°C (77°F). The maximum temperature in December can soar to 37°C (99°F), which is a degree higher than November's maximum of 36°C (97°F). However, December also sees increased precipitation, with 138 mm (5.5 in) recorded over 12 days, while November experiences slightly less with 111 mm (4.4 in) over 9 days. Additionally, the humidity rises significantly in December to 85%, compared to November's 73%. For more detailed insights on November weather, you can visit Sao Miguel do Iguacu weather in November.
As December rolls in, Sao Miguel do Iguacu experiences a vibrant shift in weather, marked by higher temperatures and increased humidity that sets it apart from other months. With the average temperature reaching a balmy 26°C, days are often sizzling, peaking at a sweltering 37°C. This month is also characterized by a significant uptick in precipitation, with rain gracing the area on about 12 days, contributing to a lush environment despite the steamy conditions. The increased humidity, hovering around 85%, adds a tropical flair to the atmosphere, making December a distinctly lively time in this beautiful Brazilian locale. For more detailed insights into the region's weather patterns, explore Sao Miguel do Iguacu Climate.