Last updated: August 21, 2025
Experience the vibrant weather of Sao Sebastiao in January, where temperatures soar with maximums reaching 36°C (96°F) and a pleasant average of 27°C (81°F). Enjoy the tropical embrace of the season, though be prepared for occasional rain, as 12 days of precipitation contribute to a total of 35 mm (1.4 in). The humidity level sits comfortably at 81%, adding to the lush, inviting atmosphere of this beautiful coastal destination. Embrace the sun, sea, and occasional showers that characterize Sao Sebastiao's January weather!
In Sao Sebastiao, January brings warm and inviting temperatures that set the tone for the summer months ahead. With a minimum of 22°C (71°F) and an average high reaching 36°C (96°F), it's no wonder this coastal paradise attracts sun-seekers. The month sees a consistent warmth, mirrored in the slight uptick of temperatures into February, where lows only rise to 23°C (73°F). As the summer progresses into March, you can expect a peak with a maximum temperature climbing to 37°C (99°F), showcasing the region's tropical climate. Overall, January is a thrilling start to the year, radiating the warmth that makes Sao Sebastiao a perfect escape for those looking to bask in sunshine and enjoy numerous beach activities.
In January, São Sebastião experiences a relatively mild start to the year, with precipitation measuring 35 mm (1.4 in) over 12 days. This marks the beginning of the rainy season, as the rainfall gradually increases in the following months. By February, precipitation rises to 49 mm (1.9 in), with a slight uptick in rain days. The trend continues into March and April, where rainfall reaches 91 mm (3.6 in) and 94 mm (3.7 in) respectively, showcasing a peak in both volume and frequency of rain. The monthly totals reach their highest in May and June, with 105 mm (4.1 in) and 109 mm (4.3 in) falling over 22 and 24 days, respectively. Following this peak, rainfall begins to taper off, with a significant drop in both amount and rainfall days during the latter half of the year, culminating in a dry October with just 26 mm (1.0 in) over 9 days. This cyclical pattern underscores the coastal climate's wet season influence on São Sebastião, offering a vivid reminder of nature’s rhythm as the year unfolds.
In Sao Sebastiao, Brazil, January ushers in the year with a notable humidity level of 81%, setting the tone for a tropical climate that remains relatively consistent throughout the first half of the year. As January transitions into February and March, humidity gradually creeps up, peaking at 84% in March. This trend of rising humidity continues into the warmer months of April and May, where it plateaus at 86%, creating a muggy atmosphere perfect for beach days. However, as winter approaches in June and July, humidity begins to ease back to 81%, reflecting a slight dip before settling into a lower average of 79% by September. By the time December rolls around, humidity slips to a comfortable 76%, marking the end of the year with a crisp clarity that contrasts with the high humidity experienced in the early months. This pattern illustrates how Sao Sebastiao experiences a refreshing cycle of humidity, balancing warmth and comfort throughout the year.
In January, Sao Sebastiao, Brazil, experiences a striking UV Index of 14, indicating extreme exposure levels that necessitate caution, as sunburn can occur in just 10 minutes. This trend continues through the following months, with February to April also boasting the same high UV readings, underscoring the need for sun protection. Even as the year progresses into May and June, the UV Index remains notably elevated, peaking at 15 in November before stabilizing again at 14 in December. The consistent exposure across the year highlights the importance of vigilance against UV radiation, especially from January through April and again in October and December. To further explore the UV Index trends throughout the year, visit Sao Sebastiao UV Index.
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In January, Sao Sebastiao, Brazil, basks in a delightful 288 hours of sunshine, setting the tone for the year ahead. As summer unfolds, February sees a welcoming increase to 324 hours, while March shines the brightest with an impressive 349 hours. The sun continues to grace the region generously into April and May, with 328 and 319 hours respectively, creating a warm, inviting atmosphere. However, as winter approaches, the sunlight gently wanes, dropping to 304 hours in June and stabilizing through July and August with 305 and 331 hours. The trend of abundant sunshine re-emerges in September and October, peaking at a radiant 355 hours, before settling at 346 in November and a robust 354 hours in December. This cyclical dance of sunlight not only enhances the island's beauty but also reflects the vibrant energy of its tropical paradise.
In Sao Sebastiao, Brazil, January presents a 27% chance of sun, marking it as one of the months with the lowest likelihood of clear skies. This trend of lower sunshine continues into December but sees a notable rise as the year progresses, with February experiencing a jump to 37%. The peak occurs in March, where the sun shines on nearly half of the days. Following this high point, sunshine probabilities gradually decline towards the year’s end, with April and May maintaining moderate chances. Overall, as you plan a visit, you can anticipate more sunny days as summer approaches, but January is a time when rain can likely outshine the sun.
In Sao Sebastiao, Brazil, the daylight duration remains largely consistent throughout the year, with January serving as a prime example, featuring 12 hours of daylight. As summer transitions into autumn, daylight begins to taper slightly, dropping to 11 hours from April through August. However, this reduction is subtle, with the trend shifting back to an abundant 12 hours from September to December, reflecting the region's steady climatic rhythm. This balance of light not only cultivates a vibrant atmosphere but also creates a harmonious cycle of seasons, inviting residents and visitors alike to engage with the beauty of nature in every month.
In January, São Sebastião greets the new year with a gentle average wind speed of 3.2 m/s (7 mph), providing a refreshing breeze that complements the warm coastal weather. This tranquil start transitions into a slightly brisker February, where the winds pick up to 3.3 m/s (7 mph), hinting at the seasonal shift. As spring approaches, there’s a subtle decline in wind speed throughout March, dipping to 3.0 m/s (7 mph), before reaching its lowest point in April and May at 2.4 m/s (5 mph)—a calm period that invites leisure and relaxation by the beach. However, the winds begin to regain momentum in the latter half of the year, gradually increasing to 3.7 m/s (8 mph) in November and December. This trend showcases a cyclical nature of breezy conditions, allowing visitors to relish a blend of serenity and vitality as they enjoy the vibrant charm of São Sebastião.
Weather in Sao Sebastiao varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Sao Sebastiao, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between January and February, January tends to be slightly warmer overall, with average temperatures reaching 27°C (81°F) compared to February's average of 28°C (82°F). However, February experiences a marginal increase in minimum temperature, rising from 22°C (71°F) in January to 23°C (73°F). Precipitation also increases in February, totaling 49 mm (1.9 in) over 13 days, compared to January's 35 mm (1.4 in) over 12 days. Humidity levels remain relatively stable, with January at 81% and February slightly higher at 82%. For more detailed insights, you can check out Sao Sebastiao weather in February.
In January, the weather in Sao Sebastiao features a warm and humid climate with temperatures ranging from a minimum of 22°C (71°F) to a maximum of 36°C (96°F), while average temperatures hover around 27°C (81°F). Precipitation is relatively modest at 35 mm (1.4 in) over 12 days, resulting in a humidity level of 81%.
By March, temperatures see a slight increase, with a maximum of 37°C (99°F) and a similar average of 27°C (81°F). However, March experiences significantly higher precipitation, reaching 91 mm (3.6 in) over 17 days, contributing to a slightly increased humidity of 84%. This shift indicates a transition into a wetter season, contrasting with the relatively drier January. For more detailed insights, check out the Sao Sebastiao weather in March.
In January, the weather in Sao Sebastiao features a warm range, with minimum temperatures around 22°C (71°F) and average highs reaching up to 36°C (96°F). Precipitation is relatively low at 35 mm (1.4 in) over approximately 12 days, and the humidity sits at 81%. In contrast, April experiences slightly cooler temperatures, with minimums of 21°C (71°F) and average highs of 34°C (93°F). However, this month sees a significant increase in rainfall, totaling 94 mm (3.7 in) over about 20 days, along with a rise in humidity to 86%. For more details, you can check out Sao Sebastiao weather in April.
In comparing the weather between January and May, January tends to be slightly warmer, with average temperatures reaching 27°C (81°F) compared to May's 25°C (78°F). However, May experiences significantly higher precipitation, totaling 105 mm (4.1 in) over 22 days, compared to January's 35 mm (1.4 in) over 12 days. Humidity also increases in May, reaching 86% compared to January's 81%. For more detailed information, you can check out Sao Sebastiao weather in May.
In January, the weather is characterized by higher temperatures, with a minimum of 22°C (71°F) and an average reaching 27°C (81°F), peaking at 36°C (96°F). Conversely, June offers a cooler climate, with a minimum temperature of 18°C (65°F) and an average of 24°C (76°F), culminating in a maximum of 30°C (87°F). Precipitation also significantly differs between the two months; January experiences 35 mm (1.4 in) of rain over 12 days, while June sees a substantial increase, with 109 mm (4.3 in) of rainfall across 24 days. Despite the slightly higher humidity in June at 83%, January's humidity remains notably high at 81%. For more details, you can check Sao Sebastiao weather in June.
January and July in Sao Sebastiao present a notable contrast in weather conditions. January is warmer with average temperatures ranging from a minimum of 22°C (71°F) to a maximum of 36°C (96°F), while July is cooler, boasting averages from 17°C (63°F) to 30°C (86°F). Additionally, January experiences less rainfall, with 35 mm (1.4 in) over 12 days, compared to July's considerable 108 mm (4.2 in) of precipitation over 24 days. Despite similar humidity levels at 81%, January offers a sunnier, hotter climate, making it ideal for beachgoers, while July's cooler temperatures and increased rain may deter outdoor activities. For more specific details, you can check Sao Sebastiao weather in July.
In January, the weather in São Sebastião is notably warmer, with temperatures ranging from a minimum of 22°C (71°F) to a maximum of 36°C (96°F) and an average of 27°C (81°F). The month experiences about 35 mm (1.4 in) of precipitation spread over 12 days, accompanied by high humidity levels at 81%. In contrast, August sees cooler temperatures, with a minimum of 18°C (64°F), an average of 24°C (75°F), and a maximum of 31°C (88°F). Precipitation increases to 62 mm (2.5 in) over 20 days, while humidity remains fairly consistent at 80%. For a detailed look at the August weather patterns, you can check Sao Sebastiao weather in August.
In January, the weather is notably warmer, with average temperatures reaching 27°C (81°F) and highs peaking at 36°C (96°F). The month experiences relatively low precipitation of 35 mm (1.4 in) over about 12 days, accompanied by high humidity at 81%. In contrast, September sees cooler temperatures, with an average of 24°C (76°F) and a maximum of 33°C (91°F). However, this month has higher precipitation at 52 mm (2.1 in) over 18 days, while humidity remains slightly lower at 79%. The shift from January's heat to September's mild conditions highlights a transition in climate, making each month distinct in its weather patterns. For more detailed insights, check out Sao Sebastiao weather in September.
January typically features slightly warmer temperatures compared to October, with an average of 27°C (81°F) and a maximum of 36°C (96°F), while October sees an average temperature of 26°C (79°F) with a peak at 35°C (95°F). Precipitation levels are higher in January, receiving 35 mm (1.4 in) over approximately 12 days, compared to October's 26 mm (1.0 in) over 9 days. Additionally, January experiences higher humidity at 81%, while October has a slightly lower humidity level of 77%. For more specific insights, you can check Sao Sebastiao weather in October.
In comparing the weather of January and November, both months exhibit similar average temperatures, with January reaching a minimum of 22°C (71°F) and a maximum of 36°C (96°F), while November sees slightly lower extremities, ranging from 21°C (71°F) to 35°C (96°F). January, however, tends to be a bit wetter, receiving 35 mm (1.4 in) of precipitation over 12 days compared to November's 28 mm (1.1 in) over just 8 days. Additionally, humidity levels are higher in January at 81%, versus November's 76%. For a more detailed look at the climate during this month, you can explore Sao Sebastiao weather in November.
In comparing the weather of January and December, both months exhibit warm temperatures, with January featuring a minimum of 22°C (71°F) and averaging 27°C (81°F), while December shares similar averages and minimums. However, January sees slightly higher maximum temperatures reaching up to 36°C (96°F), compared to December's peak of 36°C (97°F). Precipitation levels in January are also marginally higher, with 35 mm falling over 12 days, whereas December records 28 mm over just 8 days. Humidity is notably higher in January at 81%, compared to December's 76%. For a more detailed look at December weather, you can check Sao Sebastiao weather in December.
January in São Sebastião sets itself apart with warm tropical temperatures that often soar, creating a vibrant atmosphere. While the average warmth provides a pleasant escape, it also brings higher humidity levels and a notable chance of rain, with precipitation occurring on about half the days of the month. Compared to other months, this combination of heat and dampness encourages lush landscapes and vibrant seaside activities, but also reminds visitors to stay prepared for sudden showers. For a deeper look at how January weather stacks up against the rest of the year, check the detailed insights at Sao Sebastiao Climate.