Last updated: August 21, 2025
January in São Francisco do Sul, Brazil, is marked by a dynamic climate that hosts a blend of warmth and moisture. With maximum temperatures soaring up to 38°C (101°F) and an average of 26°C (78°F), the heat is palpable, especially during sunny days. However, cooler evenings offer a pleasant respite, with temperatures dipping to a minimum of 18°C (64°F). Precipitation plays a significant role in this month's weather, with 264 mm (10.4 in) of rain falling over 21 days, creating a humid atmosphere that averages 86%. This combination of warmth and frequent rainfall shapes the vibrant ambiance and lush landscapes typical of January in this coastal paradise.
In January, São Francisco do Sul, Brazil, basks in warm tropical temperatures that set the tone for the summer season. With minimums reaching 18°C (64°F) and soaring maximums of 38°C (101°F), the average temperature rests comfortably at 26°C (78°F), making it the perfect month for beachgoers and outdoor enthusiasts. As the days progress into February, temperatures dip slightly, yet the warmth persists with averages around 25°C (77°F). A gradual cooling trend is observed in March, with temperatures ranging from 17°C (63°F) to a high of 35°C (94°F). Yet, the essence of summer lingers, as the following months transition into cooler averages. Notably, the temperatures drop significantly by June and July, where minimums can fall to 3°C (37°F), showcasing the region's diverse climate within a few months. Overall, January remains a vibrant highlight before cooler conditions envelop the beautiful coastal town.
In January, São Francisco do Sul experiences its wettest month of the year, with a substantial precipitation amount of 264 mm (10.4 inches) spread over an average of 21 rainy days. This notable rainfall sets the stage for a humid summer, contributing to the lush greenery that characterizes the region. Comparatively, February and March follow closely, with 204 mm and 199 mm of rainfall respectively, though the number of rainy days increases in March to 25, hinting at a more prolonged wet season. As the year progresses, precipitation levels gradually decline, with April and May experiencing significant drops to 108 mm and 112 mm, showcasing a shift towards drier conditions. By July, the region sees a stark contrast, with only 33 mm (1.3 inches) falling across just 7 days, marking a clear transition into the dry season that continues through August and September. This trend reveals a distinct seasonal pattern, where January's abundant rainfall gives way to drier months, reflecting the diverse climate dynamics in this picturesque coastal area of Brazil.
In January, Sao Francisco do Sul experiences high humidity levels, averaging a significant 86%, setting the tone for a season characterized by moisture. This trend continues into February, where humidity slightly decreases to 83% but remains comfortably high. Over the next few months, humidity stabilizes, hovering around 85% to 86% until June, implying a consistent coastal influence. As winter approaches, a gradual decline begins, with levels dropping to 80% in July and 79% in August, offering a brief respite from the heavy moisture. However, as spring nears, humidity begins to rise again, peaking at 88% in December. This cyclical pattern reflects the region's tropical climate, where humidity plays a pivotal role in defining the local weather throughout the year.
In January, Sao Francisco do Sul experiences its peak UV Index of 15, indicating extreme sun exposure, with a burn time of just 10 minutes—a warning for those eager to soak up the sun. This intensity is mirrored in February and March, where the UV Index remains high, although slightly decreasing to 14 and 12, respectively, continuing the trend of extreme exposure. As the seasons transition, April’s Index drops to 10, categorized as very high, allowing for a slightly longer burn time of 15 minutes. Moving into mid-year, the UV Index becomes more forgiving, ranging from 6 to 8, but still classifying as high or very high, with burn times extending up to 25 minutes. Notably, the Index spikes again in October and November, reaching back to extremes of 13 and 14, ensuring that sun protection remains essential throughout the year. As January sets the stage for the sun's powerful presence, it's crucial for locals and visitors alike to remain vigilant and prepared. For more insights on the UV Index throughout the year, visit Sao Francisco do Sul UV Index.
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In Sao Francisco do Sul, January greets the year with an impressive 240 hours of sunshine, laying a warm foundation for the months to follow. As the temperature rises, February adds a vibrant 285 hours, paving the way for March, which shines even brighter with 292 hours. The sun's embrace gradually softens in April to 277 hours, before dipping to 245 hours by May. June brings the year’s lowest sunshine at 220 hours, a brief intermission before a summer revival in July with 261 hours. This sunshine pattern oscillates, peaking dramatically in November with 296 hours and culminating in December, where the sun graces the landscape for a remarkable 318 hours. Overall, there’s a delightful fluctuation of light that not only defines the seasons but also paints a unique narrative of warmth and vitality throughout the year.
In Sao Francisco do Sul, Brazil, January is one of the least sunny months, with a mere 13% chance of experiencing sunny weather. This trend of limited sunshine marks a contrast to the subsequent months, particularly February, which sees a significant increase in sun exposure at 40%. The transition into the year showcases a gradual rise in sunny days through to May, where the likelihood peaks at 41%. From there, the chances fluctuate, with July offering the most sun at 57%, before tapering off again as the year progresses. Overall, January's modest sunshine signals the start of a shift toward brighter days as the summer months approach.
In Sao Francisco do Sul, Brazil, January shines with an impressive 13 hours of daylight, welcoming the summer season with ample sunlight. As the calendar flips to February and March, daylight hours gradually taper to 12 hours, creating a gentle transition into autumn. April sees a further reduction to 11 hours, while May through July maintain a consistent 10 hours of daylight, reflecting the cooler winter months. However, as August arrives, the days begin to lengthen once more, climbing back to 11 hours in both August and September. The cycle continues with October at 12 hours, and the return of longer days in November and December, each boasting 13 hours of daylight, inviting residents and visitors alike to relish in the extended evenings. This rhythm of light not only enhances daily life but also underscores the vibrant seasonal changes that define this beautiful coastal town.
In January, the winds of São Francisco do Sul whisper gently, averaging a mild 2.0 m/s (4 mph). This tranquility sets the tone for the early months of the year, with February and March experiencing slightly calmer breezes of 1.7 m/s and 1.6 m/s respectively. However, as the seasons shift into spring and summer, the wind begins to pick up again, reaching a pleasant 2.1 m/s (5 mph) by September and peaking at 2.2 m/s in the final quarter of the year. This gentle rise in wind speed not only enhances the coastal charm of the region but also invites residents and visitors alike to embrace outdoor activities against a backdrop of breathtaking coastal views. Overall, January's moderate winds signal the start of a year filled with progressively spirited breezes, creating a delightful atmosphere in this picturesque Brazilian town.
Weather in Sao Francisco do Sul varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Sao Francisco do Sul, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather of January and February, January typically experiences slightly warmer temperatures, with a minimum of 18°C (64°F) and a maximum reaching up to 38°C (101°F). On the other hand, February is a bit cooler, with a minimum temperature of 16°C (60°F) and a maximum of 36°C (98°F). Both months see a significant amount of rainfall, with January receiving 264 mm (10.4 in) and February allowing for a bit less at 204 mm (8.0 in), although both months experience precipitation on 21 days. Humidity levels are similar, with January at 86% and February slightly lower at 83%. For more details on the specific weather conditions in February, you can check Sao Francisco do Sul weather in February.
In comparing the weather between January and March, both months exhibit warm temperatures typical of the region. January features a warmer climate with minimum temperatures of 18°C (64°F) and average highs reaching up to 38°C (101°F), whereas March sees slightly cooler conditions with a maximum temperature of 35°C (94°F) and an average temperature of 24°C (76°F). Precipitation is more pronounced in January, totaling 264 mm (10.4 in) over 21 days, compared to March’s 199 mm (7.9 in) across 25 days. Humidity levels remain relatively similar, with January at 86% and March at 85%. For a more detailed look at March weather, visit Sao Francisco do Sul weather in March.
When comparing the weather in January and April, notable differences emerge in both temperature and precipitation. January experiences significantly higher temperatures, with minimums around 18°C (64°F) and maximums reaching up to 38°C (101°F), while April offers cooler conditions, with minimum temperatures dropping to 11°C (52°F) and maximums peaking at 34°C (93°F). Precipitation also varies, with January receiving a substantial 264 mm (10.4 in) over 21 days, compared to April's 108 mm (4.3 in) across 15 days. Humidity remains relatively constant, at 86% in January and 85% in April, but the overall climate feels more comfortable in April. For more detailed insights, refer to the Sao Francisco do Sul weather in April.
In January, the weather is significantly warmer, with temperatures ranging from a minimum of 18°C (64°F) to a maximum of 38°C (101°F), and an average of 26°C (78°F). This month also sees high precipitation levels at 264 mm (10.4 in) over 21 days, contributing to high humidity levels of 86%. In contrast, May experiences much cooler temperatures, with a minimum of 7°C (45°F) and a maximum of 31°C (88°F), averaging 20°C (67°F). Precipitation in May is notably lower, at 112 mm (4.4 in) across 15 days, while humidity remains consistent at 86%. For more details on the weather during this month, visit Sao Francisco do Sul weather in May.
The contrast between January and June weather is quite striking. In January, temperatures range from a minimum of 18°C (64°F) to a scorching maximum of 38°C (101°F), with an average temperature of 26°C (78°F). This month also brings a significant amount of precipitation, totaling 264 mm (10.4 in) over 21 days, paired with high humidity at 86%. In contrast, June sees much cooler conditions, with temperatures dropping to a minimum of 6°C (43°F) and peaking at 31°C (88°F), averaging around 18°C (65°F). Rainfall is notably less in June, totaling 108 mm (4.3 in) over just 11 days, while humidity remains relatively stable at 85%. For a more detailed overview of the weather conditions during this month, check out the Sao Francisco do Sul weather in June.
In comparing the weather conditions of January and July, a stark contrast emerges. January boasts a much warmer climate, with temperatures ranging from a minimum of 18°C (64°F) to a blistering maximum of 38°C (101°F) and an average temperature of 26°C (78°F). However, this warmth comes with significant rainfall, totaling 264 mm (10.4 in) over 21 days, and high humidity levels at 86%. In contrast, July experiences a cooler but pleasant climate, with temperatures ranging from a chilly 3°C (37°F) at night to a comfortable maximum of 31°C (88°F), averaging around 17°C (63°F). The precipitation during this month is notably lower at just 33 mm (1.3 in) over 7 days, and humidity is slightly reduced at 80%. For more detailed information about July weather in this region, visit Sao Francisco do Sul weather in July.
In January, the weather is quite warm, with temperatures ranging from a minimum of 18°C (64°F) to a scorching maximum of 38°C (101°F) and an average of 26°C (78°F). This month also sees significant precipitation, with 264 mm (10.4 in) falling over 21 days, contributing to a high humidity level of 86%. In contrast, August experiences much cooler temperatures, with a minimum of 5°C (41°F) and a maximum of 31°C (88°F), averaging at 18°C (64°F). The precipitation is significantly lower, totaling 70 mm (2.7 in) over just 10 days, and the humidity is slightly reduced at 79%. For more specific details on August weather, you can check Sao Francisco do Sul weather in August.
The weather in January and September shows a stark contrast in temperature and precipitation. January sees much warmer temperatures, with minimums around 18°C (64°F) and maximums reaching up to 38°C (101°F), while September offers a cooler climate, with temperatures ranging from 9°C (49°F) to a maximum of 31°C (87°F). Additionally, January experiences significantly higher rainfall, with 264 mm (10.4 in) over 21 days, compared to September's 106 mm (4.2 in) over just 14 days. Humidity levels are relatively high in both months, but January is slightly more humid at 86% compared to 82% in September. For more detailed information, you can check out Sao Francisco do Sul weather in September.
In January, the weather is notably warmer, featuring minimum temperatures of 18°C (64°F) and average highs reaching up to 38°C (101°F). The month experiences significant rainfall, with 264 mm (10.4 in) spread over 21 days and high humidity levels at 86%. In contrast, October brings cooler temperatures, with a minimum of 12°C (54°F) and an average temperature of 21°C (70°F), alongside maximums of 37°C (99°F). While it remains relatively wet with 166 mm (6.5 in) of precipitation over 20 days, the humidity is slightly lower at 82%. For more detailed information, check out Sao Francisco do Sul weather in October.
In January, weather conditions are notably hotter, with temperatures ranging from a minimum of 18°C (64°F) to a maximum of 38°C (101°F), resulting in an average temperature of 26°C (78°F). This month also experiences significantly higher precipitation, with 264 mm (10.4 in) of rain over 21 days, maintaining high humidity levels at 86%. In contrast, November sees cooler temperatures, with a minimum of 13°C (56°F) and a maximum of 35°C (95°F), and an average temperature of 22°C (72°F). Precipitation in November is lower at 145 mm (5.7 in), also spread across 21 days, yet humidity remains consistent at 86%. For more details on November weather, visit Sao Francisco do Sul weather in November.
In January, the weather in Sao Francisco do Sul is generally warmer and wetter compared to December. January sees minimum temperatures around 18°C (64°F) and maximums reaching up to 38°C (101°F), with an average temperature of 26°C (78°F). In contrast, December features slightly cooler temperatures, with a minimum of 15°C (59°F), an average of 24°C (75°F), and a maximum of 36°C (96°F). Rainfall also increases in January, with 264 mm (10.4 in) of precipitation over 21 days, compared to December's 209 mm (8.2 in) during the same number of days. Humidity remains high in both months, though slightly higher in December at 88% compared to January's 86%. For more information, you can check out Sao Francisco do Sul weather in December.
January in Sao Francisco do Sul is characterized by a warm and humid atmosphere, setting it apart from other months. With temperatures reaching their peak, the average warmth brings a lively energy to the coastal city. However, the high humidity and frequent rain showers—spanning about two-thirds of the month—contrast with the drier, cooler winter months. This blend of heat and moisture creates a lush environment, ideal for enjoying the natural beauty of the region. For more detailed insights into the climatic conditions throughout the year, check out Sao Francisco do Sul Climate.