Last updated: August 21, 2025
March in São Sebastião, Brazil, presents a warm and inviting climate, with maximum temperatures reaching 32°C (89°F) and an average temperature of 25°C (77°F). Nights are comfortably mild, dipping to a minimum of 19°C (66°F). However, potential visitors should prepare for frequent showers, as the month experiences 247 mm (9.7 in) of precipitation over 20 days. The tropical ambiance is further accentuated by high humidity levels, averaging around 87%, making it a perfect time for those who enjoy lush landscapes and vibrant beaches.
In March, Sao Sebastiao experiences a delightful transition as temperatures begin to dip slightly from the peak intensity of summer. The month starts with a comfortable minimum of 19°C (66°F) and maintains an average of 25°C (77°F), creating a pleasant atmosphere ideal for outdoor activities. With daytime highs reaching up to 32°C (89°F), the warmth remains inviting, though it's just a notch below the sizzling highs seen in January and February. This gradual cooling trend signals the approach of autumn, making March an exceptional time to enjoy the beautiful beaches and lush landscapes that define this vibrant coastal city. Overall, the mild temperatures provide a perfect backdrop for exploration and relaxation alike.
In March, São Sebastião experiences a substantial precipitation total of 247 mm (9.7 in), marking a slight decrease from the preceding month but still indicative of the region's wet season. With rainfall spread over 20 days, March continues the pattern of frequent showers typical of early autumn in this coastal area. This month serves as a bridge between the intense monsoonal rains of January and February and the tapering off of precipitation in April, highlighting a gradual transition in weather patterns. As summer fades, the rainfall contributes to the lush landscapes that characterize this vibrant region, making March a pivotal month in São Sebastião's climatic rhythm.
In March, Sao Sebastiao, Brazil, experiences a slight dip in humidity, averaging 87%, down from the consistently high levels of 88% observed in January and February. This gradual decline marks the beginning of a shift towards drier conditions as the months progress. The humidity continues to decrease, hitting 84% in April, and continues its descent, ultimately reaching a refreshing 50% by October. This trend highlights a transition from the humid summer months towards the more temperate conditions of late fall, making March a pivotal point in Sao Sebastiao’s annual climatic cycle.
In March, Sao Sebastiao experiences a UV Index of 12, categorizing the exposure as extreme with a critical burn time of just 10 minutes. This notably emphasizes the region's consistent trend of high UV levels that prevails from January through April, where the UV Index remains above 11. Following this peak, the UV Index gradually declines to 8 in May, still categorized as very high, but offering slightly more time before sunburn occurs. As spring unfolds into summer, it's essential for residents and visitors to be mindful of these UV levels and take protective measures. For more details, check the Sao Sebastiao UV Index.
UV Risk Categories
March shines brightly in São Sebastião, Brazil, as the sun graces the sky for a remarkable 305 hours this month, marking a peak in daylight that sets the tone for the delightful autumn ahead. Following the steady increase from January to February, the sunshine hours surge again in March, showcasing a vibrant trend of increasing daylight. This month outshines both the preceding and subsequent months, such as April with its 294 hours and May seeing 282 hours. As the sun's warmth continues to embrace the region, March stands as a radiant reminder of nature's beauty and the long, inviting days that characterize this coastal gem.
In Sao Sebastiao, March marks a notable shift in the likelihood of sunny weather, with the chance of sunshine reaching 41%—a significant increase from the earlier months of the year. As the seasons transition, this upward trend continues into April, providing even more opportunities for sun-soaked days. This pattern suggests that after the relatively cloudy start to the year, visitors can look forward to clearer skies and pleasant weather in March, setting the stage for enjoyable outdoor activities as the region braces for the sunnier months ahead.
In March, Sao Sebastiao experiences an average of 12 hours of daylight, maintaining consistency with February's duration. This trend of longer daylight persists from January's peak of 13 hours, gradually tapering off into the spring months. As the year progresses into April, daylight reduces to 11 hours, marking the beginning of a noticeable decline. Following this pattern, the period from May to July sees sustained shorter days, with only 10 hours of daylight. However, a gradual increase returns in August, signaling a shift back towards longer days as the year advances into the warmer months once again. This rhythmic ebb and flow of daylight not only shapes the local climate but also influences the vibrant lifestyle of this stunning coastal town.
As March unfolds in São Sebastião, Brazil, the winds gently caress the coastline with an average speed of 2.1 m/s (5 mph), a slight dip from the preceding months of January and February. This tranquil breeze hints at the transition between the quieter summer conditions and the more invigorating winds to follow in the upcoming months. Notably, April sees a rise to 3.0 m/s (7 mph), signaling the onset of more dynamic weather patterns as autumn approaches. The gradual increase in wind speeds through the year, peaking in October at 4.1 m/s (9 mph), illustrates the shift towards a livelier atmosphere, inviting both locals and visitors to embrace the vibrant coastal life.
Weather in Sao Sebastiao varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in Sao Sebastiao, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between March and January, we find that March experiences slightly lower temperatures, with an average of 25°C (77°F) compared to January's 26°C (79°F). While both months see maximum temperatures reaching 32°C (89°F in March and 90°F in January), March is characterized by higher precipitation, totaling 247 mm (9.7 in) over 20 rainy days, compared to January's 206 mm (8.1 in) over 19 days. The humidity levels are quite similar, with March at 87% and January at 88%. For more details on January weather specifically, you can visit Sao Sebastiao weather in January.
In comparing the weather of March and February, it is evident that both months maintain a similar temperature range, with March showing a minimum temperature of 19°C (66°F) and an average of 25°C (77°F), which is slightly lower than February's minimum of 20°C (68°F) but similar in average. Both months peak at around 32°C (89°F to 90°F). However, March experiences a reduction in total precipitation, with 247 mm (9.7 in) over 20 days compared to February's higher 277 mm (10.9 in) over 21 days. Humidity levels are also very close, with March at 87% and February slightly higher at 88%. For more details on February's weather, you can visit Sao Sebastiao weather in February.
March and April exhibit notable differences in weather patterns. In March, the temperatures range from a minimum of 19°C (66°F) to an average of 25°C (77°F) and reach a maximum of 32°C (89°F). During this month, the region experiences significant rainfall, with 247 mm (9.7 in) of precipitation over 20 days, contributing to a high humidity level of 87%. In contrast, April sees slightly cooler temperatures, with a minimum of 17°C (64°F), an average of 23°C (74°F), and maintaining the same maximum of 32°C (89°F). Precipitation drops to 125 mm (4.9 in) over 15 days, resulting in a lower humidity of 84%. For more detailed information, you can check Sao Sebastiao weather in April.
In comparing the weather between March and May, March tends to be warmer and significantly wetter. With minimum temperatures reaching 19°C (66°F) and averaging around 25°C (77°F), March experiences maximum highs of 32°C (89°F). In stark contrast, May presents cooler conditions, with minimum temperatures dropping to 14°C (57°F) and an average of 21°C (70°F), while maximums only reach 28°C (83°F). Additionally, March sees considerable rainfall, totaling 247 mm (9.7 in) over 20 days, whereas May is drier with only 119 mm (4.7 in) over 11 days, leading to lower humidity levels of 79%. For a more detailed look at May's conditions, visit Sao Sebastiao weather in May.
In comparing the weather of March and June, March tends to be warmer with average temperatures reaching 25°C (77°F) and maximums soaring up to 32°C (89°F). This month also experiences significantly higher precipitation, with 247 mm (9.7 in) over 20 days, leading to a humidity level of 87%. In contrast, June brings cooler temperatures, with an average of 21°C (69°F) and a maximum of 30°C (86°F). Additionally, June is much drier, recording only 100 mm (4.0 in) of rain over 12 days and a lower humidity of 77%. For more detailed information, you can visit Sao Sebastiao weather in June.
In March, the weather in Sao Sebastiao is significantly warmer, with average temperatures ranging from a minimum of 19°C (66°F) to a maximum of 32°C (89°F). This month also sees high humidity levels at 87%, and frequent rain, averaging 247 mm (9.7 inches) over approximately 20 days. In contrast, July experiences milder temperatures, with an average ranging from 11°C (52°F) to 29°C (85°F), and less rainfall at 63 mm (2.5 inches) over just 6 days, resulting in a lower humidity of 72%. This stark difference highlights how March is typically warmer and wetter compared to the cooler and drier conditions of July. For more details, you can check Sao Sebastiao weather in July.
March and August present contrasting weather patterns in terms of temperature and precipitation. In March, temperatures range from a minimum of 19°C (66°F) to a maximum of 32°C (89°F), with an average of 25°C (77°F). This month also experiences significant rainfall, with 247 mm (9.7 in) falling over 20 days, contributing to high humidity levels at 87%. In stark contrast, August sees cooler temperatures, with a minimum of 13°C (56°F) and an average of 19°C (67°F), peaking at 31°C (88°F). Precipitation is less frequent, totaling 116 mm (4.6 in) over just 11 days, and the humidity drops to a more comfortable 65%. For more details, refer to Sao Sebastiao weather in August.
March and September exhibit notable differences in weather patterns. In March, temperatures range from a minimum of 19°C (66°F) to a maximum of 32°C (89°F), with an average of 25°C (77°F). The month is also characterized by high humidity at 87% and considerable rainfall, accumulating 247 mm (9.7 in) over 20 days. In contrast, September sees cooler temperatures, with a minimum of 15°C (60°F) and a maximum of 34°C (93°F), averaging 21°C (70°F). Rainfall decreases significantly to 95 mm (3.7 in) over just 11 days, and humidity drops to 58%. For a more detailed look at the weather in September, you can check Sao Sebastiao weather in September.
March and October present contrasting weather conditions. In March, temperatures range from a minimum of 19°C (66°F) to a peak of 32°C (89°F), with an average of 25°C (77°F). The month experiences significant rainfall, totaling 247 mm (9.7 in) over 20 days, coupled with high humidity at 87%. In contrast, October features a more moderate temperature range, with a minimum of 16°C (61°F) and a maximum of 36°C (96°F), averaging around 22°C (71°F). Precipitation decreases to 161 mm (6.3 in) over 19 days and humidity drops to 50%. For more details, check out Sao Sebastiao weather in October.
March and November present distinct weather patterns in terms of temperature and precipitation. In March, temperatures range from a minimum of 19°C (66°F) to a maximum of 32°C (89°F), creating a warm average of 25°C (77°F). However, it is a notably wet month with 247 mm (9.7 in) of rainfall spread over 20 days, coupled with high humidity at 87%. In contrast, November features slightly cooler temperatures, with a minimum of 16°C (60°F) and an average of 22°C (72°F), peaking at 31°C (88°F). Precipitation in November is also less intense, totaling 176 mm (6.9 in) over 18 days, and the humidity is lower at 75%. For more detailed information, you can check Sao Sebastiao weather in November.
In March, the weather tends to be warmer, with temperatures ranging from a minimum of 19°C (66°F) to a maximum of 32°C (89°F), and an average of 25°C (77°F). This month also experiences higher precipitation, with 247 mm (9.7 in) falling over approximately 20 days, contributing to a humidity level of 87%. In contrast, December shows slightly milder 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 is lower at 197 mm (7.7 in) for the same 20 days, and humidity is more moderate at 80%. For more specific insights into December's weather, you can refer to Sao Sebastiao weather in December.
As March unfolds in São Sebastião, the weather showcases a delightful transition from the summer heat, with average temperatures around 25°C (77°F) making it pleasantly warm yet manageable. Unlike the drier months, March is marked by increased rainfall, receiving about 247 mm across 20 days, creating a lush and vibrant landscape. The high humidity of 87% adds a tropical touch, making the air feel warmer, especially during the peak temperatures nearing 32°C (89°F). This month stands apart from others as it balances the lingering warmth of summer with refreshing showers, making it an ideal time to experience the area's natural beauty. For a comprehensive overview of the climate patterns throughout the year, visit Sao Sebastiao Climate.