Last updated: August 21, 2025
Experience the vibrant climate of Guaratuba, Brazil in January, where the sun shines brightly and temperatures soar to a maximum of 36°C (97°F). With an average temperature of 26°C (79°F), this coastal gem offers warm days perfect for exploration. However, be prepared for a wet season, as precipitation totals around 237 mm (9.3 in) over 21 days, contributing to the region's lush greenery. Humidity levels hover around 86%, making it essential to stay hydrated and take breaks in the shade. Whether you're hitting the beach or indulging in local culture, Guaratuba's January weather sets the stage for an unforgettable experience.
In January, Guaratuba, Brazil, basks in warm tropical temperatures that set the stage for a vibrant summer atmosphere. With minimums around 19°C (67°F), the average temperature climbs to a comfortable 26°C (79°F), culminating in scorching highs of up to 36°C (97°F). This heat marks the peak of the summer season, offering perfect conditions for beach activities and outdoor exploration. As the year progresses into February and March, temperatures begin to slightly dip, with averages around 25°C (78°F) and 25°C (77°F), yet still embracing that quintessential warmth. Notably, as Guaratuba transitions towards the cooler months from April onward, a gradual decline is observed, with temperatures lowering to an average of 21°C (69°F) in May, and even further as winter settles in, bringing refreshing highs in the low 30s (°C). Nonetheless, January remains the epitome of warmth, creating unforgettable summer memories for locals and visitors alike.
In January, Guaratuba experiences a significant surge in rainfall, with an impressive 237 mm (9.3 in) of precipitation over 21 days. This marks the peak of the wet season, where the region sees its highest rainfall compared to the following months. As winter takes hold, precipitation levels gradually decrease, with February and March trailing closely at 213 mm and 203 mm, respectively, yet still maintaining a similar frequency of wet days. By the time April arrives, rainfall drops sharply to 115 mm (4.5 in) over 17 days, signaling the transition to a drier period. Notably, July records the lowest rainfall, with only 32 mm (1.2 in) across 7 days, showcasing a stark contrast to the January deluge. This pattern highlights Guaratuba’s dynamic climate, where heavy rains give way to a season of relative dryness as the year unfolds.
In January, Guaratuba, Brazil, experiences a high humidity level of 86%, setting the tone for a year marked by substantial moisture. This figure is slightly higher than the following month, February, which drops to 83%, but remains consistent at 85% for both March and April. As the year progresses, humidity fluctuates moderately, peaking again in November at 86% and reaching an annual high of 88% in December. The trend reveals that while the summer months maintain elevated humidity, there's a notable decrease from mid-winter to July, when it dips to 80%. Overall, the coastal charm of Guaratuba is defined by its consistently high humidity, lending to the lush environment and vibrant ecosystem throughout the year.
In January, Guaratuba, Brazil, experiences an extreme UV Index of 15, making sun safety a top priority with a quick burn time of just 10 minutes. As the summer month unfolds, the UV Index remains high, peaking at 14 in February before gradually decreasing towards 12 in March. This consistent extreme exposure emphasizes the importance of protection during these initial months of the year. By April, the UV Index drops to 10, categorized as very high, allowing for a slightly longer burn time of 15 minutes. As the year progresses into the colder months, the UV levels stabilize in the high category, where they hover around 6 to 8, yet still require mindful sun protection strategies. As the year wraps up, the final months see a resurgence, with UV Index levels climbing back to 14, reiterating the need for vigilance during outdoor activities in Guaratuba. For detailed insights on how to protect yourself under the sun, visit Guaratuba UV Index.
UV Risk Categories
January in Guaratuba, Brazil, welcomes the year with a generous 243 hours of sunshine, laying the groundwork for a bright start. As the summer unfolds into February, sunshine flourishes to 278 hours, and by March, it peaks at an impressive 289 hours, showcasing the region's vibrant energy. April maintains this sunny trend with 281 hours, but as the season transitions, hours decrease slightly to 247 in May. The charming coastal town sees a gradual decline through June with 219 hours, though the sunshine begins to bounce back in the following months, reaching a refreshing 256 hours in July. August and September experience more subtle shifts, with hours hovering around the low 240s. Notably, the year wraps up brilliantly, with November and December breaking records at 300 and 317 hours of sunshine, respectively, leaving a lasting impression of warmth and cheer that lingers well into the new year.
In Guaratuba, Brazil, January presents a modest 15% chance of sunny weather, making it the least favorable month for sun-seekers. As the year progresses into February, the likelihood of sunshine dramatically increases to 41%, followed by a more moderate 30% in March. This upward trend continues through the spring months, peaking in July with an impressive 57% chance of sun, offering an ideal escape from the winter blues. However, as summer wanes, the chances of clear skies dip again, underscoring the distinct seasonal variations in this charming coastal town. Ultimately, for those craving sunshine, planning a visit from June to July would yield the brightest rewards!
In January, Guaratuba basks in a generous 13 hours of daylight, setting the tone for a vibrant summer. As the month transitions into February and March, the daylight slightly recedes to 12 hours, but the warm, inviting climate continues to draw visitors and locals alike. By April, daylight diminishes further to 11 hours, hinting at the approaching seasons. From May to July, the days stabilize at 10 hours, offering a unique opportunity to enjoy the cozy atmosphere of winter in Brazil. As August rolls in, daylight slowly starts to return, increasing to 11 hours, and by October, it climbs back up to 12 hours, indicating the advent of a warmer spring. November and December once again celebrate the return of longer days with 13 hours of sunlight, inviting festive gatherings as the year draws to a close. This cyclical dance of daylight showcases Guaratuba's climatic transitions, making each month a unique experience for all who visit.
In January, Guaratuba experiences a refreshing average wind speed of 3.0 m/s (7 mph), making it one of the brisker months in this coastal paradise. This invigorating breeze sets the tone for the year ahead, with February and March showing a slight drop to 2.3 m/s (5 mph), suggesting a calmer phase. As the seasons transition, wind speeds pick up again in April, returning to 3.0 m/s (7 mph), before moderating through the mid-year months. Notably, the wind picks up momentum again in October, reaching 3.3 m/s (7 mph), marking it as one of the windiest months. Overall, Guaratuba's wind patterns illustrate a rhythmic ebb and flow, blending tranquility with moments of lively gusts that are perfect for outdoor adventures along the stunning coastline.
Weather in Guaratuba varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Guaratuba, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, the weather is generally warmer with temperatures ranging from a minimum of 19°C (67°F) to a maximum of 36°C (97°F), and an average of 26°C (79°F). It also experiences higher precipitation levels at 237 mm (9.3 in) over 21 days, along with a humidity level of 86%. In contrast, February sees slightly cooler temperatures, with a minimum of 18°C (65°F), an average of 25°C (78°F), and a maximum of 34°C (94°F). The month has a reduced precipitation total of 213 mm (8.4 in) over 20 days, along with slightly lower humidity at 83%. For a closer look at the weather specifics, you can visit Guaratuba weather in February.
January and March exhibit notable differences in weather despite their proximity in the calendar year. January features warmer temperatures, with daily averages hovering around 26°C (79°F) and maximums reaching up to 36°C (97°F); in contrast, March is slightly cooler, averaging 25°C (77°F) with a maximum of 32°C (90°F). In terms of precipitation, January sees more rain, totaling 237 mm (9.3 in) over 21 days, while March has a lower total of 203 mm (8.0 in) across 24 days. Humidity levels remain similar, with January at 86% and March slightly lower at 85%. For a detailed overview of March's weather in Guaratuba, you can refer to Guaratuba weather in March.
In comparison to January, April experiences slightly cooler temperatures, with a minimum of 14°C (58°F) and an average of 23°C (73°F), compared to January's minimum of 19°C (67°F) and average of 26°C (79°F). The maximum temperature in April reaches 32°C (91°F), which is notably lower than January's maximum of 36°C (97°F). Precipitation decreases significantly in April to 115 mm (4.5 in) over 17 days, in contrast to January's 237 mm (9.3 in) over 21 days. Additionally, humidity levels remain relatively constant between the two months, with January at 86% and April at 85%. For more details on the conditions in April, you can visit Guaratuba weather in April.
In January, the weather is characterized by significantly warmer temperatures, ranging from a minimum of 19°C (67°F) to a maximum of 36°C (97°F), with an average temperature of 26°C (79°F). This month experiences high humidity at 86% and considerable rainfall, totaling 237 mm (9.3 in) over 21 days. In contrast, May brings much cooler conditions, with temperatures ranging from a minimum of 11°C (52°F) to a maximum of 29°C (84°F), averaging 21°C (69°F). The precipitation decreases to 127 mm (5.0 in) over 15 days while maintaining the same humidity level of 86%. For more detailed information about the conditions prevalent during this month, you can visit Guaratuba weather in May.
In January, temperatures soar with a minimum of 19°C (67°F) and a maximum of 36°C (97°F), averaging around 26°C (79°F). The month is also characterized by high humidity at 86% and significant rainfall, with 237 mm (9.3 in) spread over 21 days. In contrast, June brings a much cooler climate, with temperatures ranging from a minimum of 9°C (48°F) to a maximum of 28°C (83°F), and an average of 19°C (67°F). Precipitation decreases to 113 mm (4.5 in) over 12 rainy days, while humidity remains relatively stable at 85%. Overall, January is marked by heat and frequent rain, whereas June offers a milder and drier climate. For more details, check out Guaratuba weather in June.
In January, the weather is significantly warmer, with temperatures ranging from a minimum of 19°C (67°F) to a maximum of 36°C (97°F), resulting in an average of 26°C (79°F). The month experiences high precipitation levels, totaling 237 mm (9.3 in) over 21 days, and humidity is relatively high at 86%. In contrast, July brings much cooler conditions, with temperatures dipping to a minimum of 7°C (44°F) and peaking at 29°C (84°F), averaging around 18°C (64°F). Rainfall decreases substantially to just 32 mm (1.2 in) over 7 days, and humidity is slightly lower at 80%. For more detailed insights into the weather patterns during July, check out Guaratuba weather in July.
In January, the weather is significantly warmer and more humid compared to August. With average temperatures soaring from a minimum of 19°C (67°F) to a maximum of 36°C (97°F), January experiences high humidity levels at 86% and considerable rainfall of 237 mm (9.3 in) over 21 days. In contrast, August boasts a cooler climate with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 28°C (82°F). The month is marked by lower precipitation levels of 72 mm (2.8 in) spread over just 11 days, along with a humidity level of 79%. For more detailed information, check out Guaratuba weather in August.
January and September present a stark contrast in weather. In January, temperatures soar with a minimum of 19°C (67°F), averaging 26°C (79°F), and peaking at a sweltering 36°C (97°F). The month sees considerable precipitation, totaling 237 mm (9.3 in) over 21 days, accompanied by high humidity levels at 86%. In contrast, September offers a cooler climate, with temperatures ranging from a minimum of 12°C (54°F) to an average of 20°C (68°F), and a maximum of 28°C (82°F). The precipitation drops significantly to 91 mm (3.6 in) over just 14 days, and the humidity decreases slightly to 82%. For more details on the conditions in September, check out Guaratuba weather in September.
January and October present notable differences in weather conditions. January boasts higher temperatures, with minimums at 19°C (67°F) and maximums reaching up to 36°C (97°F), resulting in an average temperature of 26°C (79°F). In contrast, October features cooler temperatures, with a minimum of 16°C (60°F) and a maximum of 31°C (89°F), leading to an average of 21°C (70°F). Precipitation is more intense in January, with 237 mm (9.3 in) over 21 days, while October sees lesser rainfall at 166 mm (6.6 in) across 19 days. Humidity levels are also slightly higher in January at 86% compared to 82% in October. For more detailed information, check out the Guaratuba weather in October.
In January, temperatures in Guaratuba tend to be warmer, with minimums around 19°C (67°F) and maximums reaching 36°C (97°F), resulting in an average temperature of 26°C (79°F). In contrast, November experiences cooler temperatures, with minimums of 15°C (60°F) and maximums of 32°C (89°F), leading to an average of 22°C (72°F). Both months see considerable precipitation, with January receiving 237 mm (9.3 in) over 21 days, compared to November's 153 mm (6.0 in) over 20 days. Notably, humidity remains consistent at 86% for both months. For more detailed information, you can check Guaratuba weather in November.
In comparing the weather of January and December, January tends to be warmer with average temperatures ranging from a minimum of 19°C (67°F) to a maximum of 36°C (97°F), while December has slightly cooler averages with a range of 18°C (64°F) to 32°C (89°F). Additionally, January experiences more precipitation, totaling 237 mm (9.3 in) over 21 days, compared to December's 193 mm (7.6 in) over 20 days. Humidity levels are quite high in both months, with January at 86% and December slightly higher at 88%. For a more detailed outlook on December weather, you can visit Guaratuba weather in December.
January in Guaratuba stands out with its warm temperatures and high humidity, creating a tropical atmosphere that feels vibrant yet sticky. Unlike the milder months that precede and follow it, January typically greets visitors with balmy highs reaching up to 36°C, encouraging beach outings and outdoor adventures. However, it also brings frequent rain, with precipitation appearing on over two-thirds of the month, making it one of the wettest times of the year. This dynamic weather nuances Guaratuba's charm, balancing sunshine with refreshing showers. For a deeper dive into what each month offers, explore the comprehensive details at Guaratuba Climate.