Last updated: August 21, 2025
Experience the vibrant October weather of Sao Francisco do Sul, Brazil, where temperatures can soar to a sizzling 37°C (99°F) during the day, with a comfortable average of 21°C (70°F). As the month progresses, expect a refreshing drop to a cool 12°C (54°F) at night. However, be prepared for the rain, as this month sees 166 mm (6.5 in) of precipitation spread over 20 days, contributing to the area's lush landscape and high humidity levels of 82%. Embrace the blend of warmth and moisture that makes October a unique time to explore this beautiful coastal city.
In October, the weather in Sao Francisco do Sul, Brazil showcases a delightful transition as it approaches the warmer months. With minimum temperatures around 12°C (54°F) and a pleasant average of 21°C (70°F), it offers a comfortable climate for outdoor activities. However, the season's true warmth is felt through a maximum of 37°C (99°F), hinting at the lingering summer heat. Compared to previous months, there's a notable rise from September's cooler averages, marking October as a month where the days grow longer and more vibrant, inviting both locals and visitors to enjoy the sun-soaked charm of this coastal gem.
In October, São Francisco do Sul experiences a notable increase in precipitation, receiving 166 mm (6.5 inches) over 20 days of rain. This marks a significant rise from the preceding months, aligning with a trend observed as the year progresses towards the wetter summer season. Compared to the more arid months of July and August, which saw just 33 mm and 70 mm respectively, October's rainfall sustains the region's lush landscape. Additionally, it serves as a precursor to even more substantial rainfall in November and December, suggesting that the coastal town is transitioning into its peak rainy period, characterized by both increased volume and frequency of precipitation. As such, October plays a crucial role in replenishing the local ecosystem, setting the stage for the vibrant growth that accompanies the summer months.
In Sao Francisco do Sul, Brazil, the humidity levels throughout the year exhibit notable trends, with October typically showcasing a comfortable 82%. Following the peak of 88% in December, humidity begins to recede slightly, marking a transition from the more intense humidity of the earlier months. This gradual decline continues through the latter half of the year, with July and August demonstrating the lowest values at 80% and 79%, respectively. By the time October arrives, humidity levels stabilize, providing a pleasant environment that is comparatively lower than the earlier months. Overall, while the air remains consistently humid, October offers a balanced reprieve as one of the drier months on the yearly spectrum, paving the way for a more temperate transition into the summer months ahead.
In October, Sao Francisco do Sul experiences a UV Index of 13, classifying it as an extreme exposure category with a burn time of just 10 minutes. This uptick in UV levels marks a continuation of the intense sun exposure seen in the preceding months, as both September and November also reflect high UV indices of 10 and 14, respectively. Notably, the trend towards more extreme UV conditions characterizes the spring months in this coastal region, leading to a consistent warning for sun safety. As the sun's rays become increasingly potent, it's essential to stay vigilant about protection. For more detailed information about the UV index throughout the year, check out the Sao Francisco do Sul UV Index.
UV Risk Categories
October in São Francisco do Sul shines brightly with 243 hours of sunshine, contributing to the region's overall appeal as the days start to transition to the end of the year. This month marks a slight dip compared to the peak summer months of March and November, which boast impressive totals of 292 and 296 hours respectively. As temperatures begin to cool, October still offers ample sunlight, outperforming the mid-year slump seen in June with only 220 hours. Interestingly, sunshine hours appear to be gradually increasing from the waning days of winter, suggesting that October remains a charming time to enjoy the natural beauty of this coastal paradise. With its warm, inviting rays, October sets the stage for the longer, sunnier days that December promises, ensuring this Brazilian gem stays vibrant and lovely throughout the year.
In Sao Francisco do Sul, Brazil, the likelihood of sunny weather in October tends to dip, with a mere 12% chance of sunshine. This represents a notable decline compared to the preceding months, particularly the 57% in July, which boasts the best prospects for clear skies. The transition into fall sees a general trend of reduced sunlight opportunities, as summer's vibrancy gives way to the more overcast conditions typical of later in the year. Although October is less favorable for sun seekers, it still offers the allure of mild weather, making it a pleasant time for visitors who appreciate the charm of Brazil's coastal beauty despite the lower chances of sunshine.
As October arrives in São Francisco do Sul, residents can enjoy a pleasant 12 hours of daylight, marking a transition into a season of moderate brightness. Following the brighter months of January and November, which each boast 13 hours of daylight, October maintains a balance that echoes the shorter daylight seen in April and May. This gradual shift from the darker days of winter brings a renewed vibrancy to the landscape, as daylight gradually increases from the tail end of the cold months. The trend reveals a harmonious cycle of light, with the community savoring the comfortable glow before the longer days of summer return.
As October arrives in São Francisco do Sul, the gentle embrace of the wind begins to pick up, with average speeds reaching 2.2 m/s (about 5 mph). This marks a delightful trend as the winds gradually strengthen after a notably calm winter, with speeds historically peaking in October, November, and December. The transition into spring brings a refreshing change, creating a perfect backdrop for leisurely beach strolls and vibrant outdoor activities, all enhanced by the invigorating breeze that characterizes this beautiful coastal town. The slightly increased wind speed not only adds a sense of dynamism to the atmosphere but also invites locals and visitors alike to revel in the charm of October along the picturesque shores.
Weather in Sao Francisco do Sul varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Sao Francisco do Sul, focusing on differences in temperature, rainfall, humidity, and UV levels.
October and January present contrasting weather patterns, each with its unique characteristics. In October, temperatures range from a minimum of 12°C (54°F) to a maximum of 37°C (99°F), averaging around 21°C (70°F). The month sees a substantial amount of precipitation, with 166 mm (6.5 in) spread across 20 days and an average humidity of 82%.
Conversely, January experiences warmer temperatures, with a minimum of 18°C (64°F) and a maximum touching 38°C (101°F), averaging 26°C (78°F). It also brings higher precipitation levels, totaling 264 mm (10.4 in) over 21 days, and slightly increased humidity at 86%. For more detailed insights about the weather in January, check out Sao Francisco do Sul weather in January.
In October, the weather in Sao Francisco do Sul tends to present a range of temperatures, with a minimum of 12°C (54°F), an average of 21°C (70°F), and a maximum reaching up to 37°C (99°F). During this month, rainfall is significant, with 166 mm (6.5 in) of precipitation typically spread over 20 days, and humidity levels remain high at 82%. In contrast, February experiences slightly warmer temperatures, with a minimum of 16°C (60°F) and an average of 25°C (77°F), peaking at a maximum of 36°C (98°F). Precipitation increases to 204 mm (8.0 in) over 21 days, and humidity remains fairly constant at 83%. For a closer look at February's weather patterns, you can visit Sao Francisco do Sul weather in February.
When comparing the weather in October and March, October tends to be slightly cooler with an average temperature of 21°C (70°F) and a maximum of 37°C (99°F). In contrast, March features a warmer average of 24°C (76°F), peaking at 35°C (94°F). Precipitation is higher in March, with 199 mm (7.9 in) over 25 days, compared to October’s 166 mm (6.5 in) over 20 days. Humidity levels are also relatively high during both months, with October at 82% and March at 85%. For more detailed insights on March weather, you can visit Sao Francisco do Sul weather in March.
When comparing the weather in October and April, we find that October typically experiences a slightly wider range of temperatures, with a minimum of 12°C (54°F) and a maximum of 37°C (99°F), compared to April's range of 11°C (52°F) to 34°C (93°F). The average temperature in April is just a degree higher at 22°C (72°F), offering a mild climate. Precipitation is more significant in October, with 166 mm (6.5 in) of rainfall over approximately 20 days, while April sees less rainfall at 108 mm (4.3 in) over around 15 days. Humidity levels are slightly higher in April at 85%, compared to October's 82%. For a closer look at April’s conditions, you can check out Sao Francisco do Sul weather in April.
When comparing the weather in October to that of May, October tends to be warmer overall, with average temperatures reaching 21°C (70°F) and maximums peaking at 37°C (99°F). In contrast, May has milder temperatures, with an average of 20°C (67°F) and a maximum of 31°C (88°F). Additionally, October experiences more precipitation, totaling 166 mm (6.5 in) over 20 days, compared to May's 112 mm (4.4 in) across 15 days. Both months have high humidity levels, with October at 82% and May slightly higher at 86%. For a closer look at the specifics of May weather, you can check Sao Francisco do Sul weather in May.
When comparing the weather in October and June, notable differences arise in both temperature and precipitation patterns. October experiences a broader temperature range with minimums around 12°C (54°F) and maximums soaring up to 37°C (99°F), while June's temperatures are milder, ranging from 6°C (43°F) to a maximum of 31°C (88°F). Additionally, October sees significantly higher precipitation, with 166 mm (6.5 in) over 20 days, compared to June's 108 mm (4.3 in) over just 11 days. Humidity levels are quite similar, with October at 82% and June at 85%, but the overall heat and rainfall in October create a more intense climate. For more specific details about rain patterns in June, check out Sao Francisco do Sul weather in June.
October and July display contrasting weather patterns. In October, temperatures range from a minimum of 12°C (54°F) to a scorching maximum of 37°C (99°F), with an average of 21°C (70°F). The month is also quite wet, experiencing approximately 166 mm (6.5 in) of rainfall over 20 days, coupled with high humidity at 82%. In contrast, July is much cooler, with temperatures ranging from a minimum of 3°C (37°F) to a maximum of 31°C (88°F) and an average of 17°C (63°F). The precipitation in July is significantly lower, at around 33 mm (1.3 in) over just 7 days, and humidity hovers around 80%. For a more detailed look at July's weather, check out Sao Francisco do Sul weather in July.
In comparing the weather of October and August, October experiences a warmer temperature range with minimums around 12°C (54°F) and maximums reaching up to 37°C (99°F), while August has cooler temperatures, with minimums of 5°C (41°F) and maximums peaking at 31°C (88°F). Additionally, October is significantly wetter, receiving 166 mm (6.5 in) of precipitation over about 20 days, compared to August's much lighter rainfall of 70 mm (2.7 in) spread over only 10 days. Humidity levels are slightly higher in October at 82%, compared to 79% in August, creating a more humid atmosphere in the later month. For more details, you can check Sao Francisco do Sul weather in August.
In comparing the weather between September and October, we see notable differences in temperature and precipitation. October tends to be warmer, with minimum temperatures starting at 12°C (54°F) and averaging 21°C (70°F), while September has a slightly cooler minimum of 9°C (49°F) and an average of 20°C (68°F). The maximum temperatures also rise significantly in October, reaching up to 37°C (99°F), compared to September's peak of 31°C (87°F). Additionally, October experiences more precipitation, with 166 mm (6.5 in) over 20 days, compared to September's 106 mm (4.2 in) across 14 days. Both months share the same humidity level of 82%, but October's higher temperatures and increased rainfall can significantly change the overall outdoor experience. For more detailed information, you can check Sao Francisco do Sul weather in September.
In comparing the weather between October and November, we see a slight increase in average temperature, from 21°C (70°F) in October to 22°C (72°F) in November. The maximum temperature also remains relatively high, with November peaking at 35°C (95°F), slightly lower than October's maximum of 37°C (99°F). Precipitation decreases in November, totaling 145 mm (5.7 in) compared to October's 166 mm (6.5 in), despite November having one extra day of recorded rain. Humidity also rises somewhat, going from 82% in October to 86% in November. For more detailed insights on November weather, visit Sao Francisco do Sul weather in November.
In October, temperatures in Sao Francisco do Sul range from a minimum of 12°C (54°F) to a maximum of 37°C (99°F), with an average of 21°C (70°F). The month sees significant rainfall, totaling 166 mm (6.5 in) over 20 days, and humidity levels are quite high at 82%. In contrast, December brings slightly warmer temperatures, with a minimum of 15°C (59°F) and an average high of 36°C (96°F), averaging 24°C (75°F). Precipitation increases to 209 mm (8.2 in) over 21 days, accompanied by even higher humidity at 88%. The overall weather shift from October to December indicates a trend towards warmer temperatures and increased rainfall. For more detailed insights, check out Sao Francisco do Sul weather in December.
As October unfolds in Sao Francisco do Sul, the weather begins to usher in a shift that sets it apart from other months. With an average temperature of 21°C, the warmth can peak to a steamy 37°C, providing a stark contrast to the cooler nights that dip to 12°C. October brings significant rainfall, averaging around 166 mm over approximately 20 days, making it one of the wetter months of the year. This combination of high humidity at 82% and frequent showers creates a lush, vibrant atmosphere, ideal for those who appreciate nature's beauty. For a deeper dive into the climatic patterns of this coastal gem, explore Sao Francisco do Sul Climate.