Last updated: August 21, 2025
Experience Sao Sebastiao's vibrant weather in August, where temperatures typically peak at a warm 31°C (88°F) and dip to a cooler 13°C (56°F), with an average temperature hovering around 19°C (67°F). This coastal gem witnesses about 116 mm (4.6 in) of rainfall spread over 11 days, contributing to the tropical humidity level of 65%. Ideal for beach lovers and nature enthusiasts alike, August offers a mix of sun and refreshing showers, making it a delightful time to explore the natural beauty of this Brazilian paradise.
In August, Sao Sebastiao experiences a notable shift in temperatures, with minimums dipping to a cool 13°C (56°F) and an average of 19°C (67°F). This is a transition to the heart of winter in Brazil, where residents enjoy mild days with maximum temperatures reaching 31°C (88°F). Compared to the warmer summer months of January through March, August offers a refreshing respite from the heat, making it ideal for outdoor activities. The cooler mornings and pleasant afternoons create a comfortable environment for exploring the scenic beauty of this coastal gem. As summer approaches once again, August serves as a gentle reminder of the seasonal ebb and flow, ensuring a delightful experience for both locals and visitors alike.
In August, São Sebastião experiences a notable shift in precipitation patterns, with a total of 116 mm (4.6 in) of rainfall spread over 11 days. This amount marks a slight increase compared to the relatively dry July, which recorded only 63 mm (2.5 in) of rain over just 6 days. The return of moisture in August is a sign that the dry spell of mid-year is coming to an end, as the area braces for the wetter months ahead. Following August, precipitation levels rise dramatically, with October typically bringing heavier rains, demonstrating the seasonal shift that characterizes this Brazilian coastal region. Overall, while August may not be the wettest month, it serves as a bridge between the drier summer and the impending wet season, highlighting the cyclical nature of rainfall in São Sebastião.
In August, Sao Sebastiao experiences a noticeable dip in humidity, dropping to 65%—the lowest level for the year. This decline continues the trend of decreasing moisture from the peak summer months of January and February, both at an impressive 88% humidity. As the year progresses towards the dry season, the humidity steadily declines each month, reaching its minimum in October at 50%. By September, the levels further decrease to 58%, indicating a shift towards drier conditions. This gradual decline not only enhances the ease of outdoor activities but also signals the onset of cooler and crisp air, making August an inviting month for both residents and visitors alike.
In August, Sao Sebastiao experiences a very high UV Index of 9, indicating that sun exposure can be harmful if precautions are not taken—burn times are estimated at 15 minutes. This month marks a slight increase from the previous months, where the UV Index was lower, but still significantly elevated compared to the mid-year readings. The trend shows that while UV levels fluctuate throughout the year, they remain notably high from January to April, dipping in May and June, before rising again as summer approaches. For sunseekers and outdoor enthusiasts, understanding this UV radiation intensity is crucial for safe sun practices. To learn more about the UV levels throughout the year, visit Sao Sebastiao UV Index.
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In August, Sao Sebastiao basks in an average of 263 hours of sunshine, marking a gentle decline from the sun-drenched heights of March with 305 hours. This month reflects a transitional phase as the city gradually shifts away from the vibrant summer peak. Following the warmth of July, which boasted 288 hours, August remains pleasantly bright yet hints at the onset of the cooler months. As the year progresses, September brings a slight resurgence with 290 hours, reminding locals and visitors alike of the sun's enduring presence even as the seasons change. The sunshine trend illustrates Sao Sebastiao’s Mediterranean charm, balancing warmth and vibrancy through its picturesque beauty.
In São Sebastião, Brazil, the likelihood of sunny weather in August is promising, with a 52% chance of clear skies. This month falls into a notable upward trend that begins in the winter months, as July boasts a 59% probability of sunshine, followed by a slight decrease in August. As the year progresses, the chances of sun fluctuate, starting from a low 17% in January to a robust 49% by April. Post-August, the chance of sunshine tapers off into September at 38%, suggesting that late winter and early spring are particularly favorable for basking in the sun. This makes August an appealing choice for travelers seeking warm and sunny days along the beautiful Brazilian coast.
In Sao Sebastiao, Brazil, August marks a transition as daylight duration begins to rise again, averaging 11 hours—a slight increase from the 10 hours observed in the mid-winter months of June and July. This gradual return to longer days resembles a gentle hug of sunlight that extends as the year progresses. The trend continues into September, where daylight remains consistent at 11 hours, before climbing further in October and November, reaching a peak of 13 hours by the end of the year. The shifting daylight not only reflects the changing seasons but also hints at the vibrant life and activities that flourish in this beautiful coastal town as summer approaches.
In August, São Sebastião welcomes a noticeable shift in wind dynamics, with an average wind speed of 3.1 m/s (7 mph), which marks a gentle increase from the preceding months. This uptick continues into September, where the winds pick up slightly more to 3.3 m/s (7 mph), signaling a transition towards the breezier conditions typical of the later months. The wind's gradual intensification, peaking at 4.1 m/s (9 mph) in October, enhances the coastal charm, making it an ideal time for water sports and outdoor adventures. Thus, August stands as a pivotal month in the annual wind trend, bridging the calmer summer breezes and the invigorating winds of early fall that define the region's dynamic coastal climate.
Weather in Sao Sebastiao varies notably across the year, with each month offering distinct climate conditions. This page compares August’s weather to other months in Sao Sebastiao, focusing on differences in temperature, rainfall, humidity, and UV levels.
In August, the weather features milder temperatures, with a minimum of 13°C (56°F) and an average of 19°C (67°F), reaching a maximum of 31°C (88°F). This month experiences moderate rainfall, totaling 116 mm (4.6 in) over approximately 11 days, combined with a humidity level of 65%. In contrast, January brings warmer conditions, starting at a minimum of 20°C (69°F) and averaging 26°C (79°F), peaking at 32°C (90°F). However, it also sees significantly more precipitation with 206 mm (8.1 in) over 19 days and higher humidity at 88%. For a detailed look at January's weather conditions, you can visit Sao Sebastiao weather in January.
When comparing the weather in August and February, notable differences emerge in temperature and precipitation patterns. August features a milder temperature range, with minimums around 13°C (56°F) and maximums reaching 31°C (88°F), while February offers warmer conditions with minimums of 20°C (68°F) and maximums peaking at 32°C (90°F). Additionally, February experiences significantly higher rainfall, accumulating 277 mm (10.9 in) over 21 days compared to August's 116 mm (4.6 in) spread over 11 days. The higher humidity in February, averaging 88%, contrasts with August's 65%, contributing to a more tropical feel. For more detailed insights, check out Sao Sebastiao weather in February.
The weather in August and March presents a notable contrast. August typically features milder temperatures, with averages around 19°C (67°F) and highs reaching up to 31°C (88°F), while experiencing some humidity at 65%. In contrast, March tends to be warmer, with minimums starting at 19°C (66°F) and daily averages around 25°C (77°F), or peaking at 32°C (89°F). However, March also sees significantly higher precipitation, averaging 247 mm (9.7 in) over 20 days, compared to August's 116 mm (4.6 in) across 11 days. For more detailed information, you can check Sao Sebastiao weather in March.
When comparing the weather in August and April, notable differences in temperature and humidity emerge. August tends to have lower average temperatures, ranging from a minimum of 13°C (56°F) to a maximum of 31°C (88°F), with an average of 19°C (67°F). In contrast, April generally experiences warmer conditions, with temperatures ranging from a minimum of 17°C (64°F) to a maximum of 32°C (89°F) and an average of 23°C (74°F).
Moreover, April sees higher humidity levels at 84%, compared to August's 65%, contributing to a more humid atmosphere. Rainfall is also more prevalent in April, with precipitation recorded on 15 days, totaling 125 mm (4.9 in), compared to August's 116 mm (4.6 in) over 11 days. For more detailed insights, you can check out Sao Sebastiao weather in April.
When comparing the weather in August and May, we see some interesting contrasts. In August, temperatures typically range from a minimum of 13°C (56°F) to a maximum of 31°C (88°F), with an average of 19°C (67°F). In contrast, May tends to be slightly warmer overall, featuring a minimum of 14°C (57°F) and a maximum of 28°C (83°F), averaging around 21°C (70°F). Both months see a similar amount of precipitation, with August receiving 116 mm (4.6 in) and May recording 119 mm (4.7 in), although May's humidity is noticeably higher at 79% compared to August's 65%. For more detailed information on May weather specifically, you can check out Sao Sebastiao weather in May.
In comparing the weather of August and June, August generally experiences slightly cooler temperatures, with average highs reaching 31°C (88°F) compared to June's 30°C (86°F). However, June has a higher minimum temperature of 15°C (60°F) versus August's 13°C (56°F), making June feel milder overall. Both months see significant rainfall, with August receiving 116 mm (4.6 in) over 11 days and June slightly less at 100 mm (4.0 in) over 12 days. Additionally, June has a higher humidity level at 77%, compared to August's 65%, contributing to a more humid feel during that month. For more details, you can check Sao Sebastiao weather in June.
In comparing the weather between July and August, August tends to be warmer overall, with temperatures ranging from a minimum of 13°C (56°F) to a maximum of 31°C (88°F), averaging at 19°C (67°F). In contrast, July has slightly cooler temperatures, with a minimum of 11°C (52°F) and a maximum of 29°C (85°F), averaging at 20°C (67°F). Additionally, August experiences significantly higher precipitation, totaling 116 mm (4.6 in) over 11 days, compared to July's 63 mm (2.5 in) over just 6 days. Humidity levels are also notably different, with August at 65% and July slightly higher at 72%. For more detailed information, you can check Sao Sebastiao weather in July.
In comparing the weather between August and September, September generally exhibits slightly warmer temperatures, with an average rising to 21°C (70°F) compared to August's 19°C (67°F). Furthermore, September sees higher maximum temperatures, reaching up to 34°C (93°F), while August peaks at 31°C (88°F). Although both months experience 11 days of precipitation, September receives less rain overall, totaling 95 mm (3.7 in) compared to August's 116 mm (4.6 in). Additionally, September has a lower average humidity at 58%, while August maintains a humidity level of 65%. For more details, check out Sao Sebastiao weather in September.
In August, the weather tends to be cooler with a minimum temperature of 13°C (56°F) and an average of 19°C (67°F), reaching a maximum of 31°C (88°F). This month experiences significant rainfall, totaling 116 mm (4.6 in), over approximately 11 days, coupled with a humidity level of 65%. In contrast, October sees a rise in temperatures, with a minimum of 16°C (61°F), an average of 22°C (71°F), and a peak of 36°C (96°F). However, it also faces increased precipitation, totaling 161 mm (6.3 in) over 19 days, though the humidity drops to 50%. For more detailed statistics, you can check Sao Sebastiao weather in October.
In August, the weather typically presents a cooler and drier profile with average temperatures ranging from a minimum of 13°C (56°F) to a maximum of 31°C (88°F) and total precipitation of 116 mm (4.6 in) over about 11 days. The humidity stands at a comfortable 65%, making it a pleasant month for outdoor activities. In contrast, November sees slightly warmer temperatures, with a minimum of 16°C (60°F) and an average of 22°C (72°F), while still reaching the same maximum of 31°C (88°F). However, November experiences increased rainfall, totaling 176 mm (6.9 in) across 18 days and higher humidity at 75%, which can make the atmosphere feel more humid and damp. For more detailed insights, you can check out Sao Sebastiao weather in November.
In comparing the weather of August and December, notable differences emerge. August experiences a cooler range of temperatures, with a minimum of 13°C (56°F) and an average of 19°C (67°F), while December is warmer, with a minimum of 18°C (64°F) and an average of 24°C (75°F). Both months see a maximum temperature of 31°C (88°F), but December tends to be more humid at 80% compared to August's 65%. Furthermore, December witnesses a significant increase in precipitation, totaling 197 mm (7.7 in) over 20 days, compared to August's 116 mm (4.6 in) spread across only 11 days. For more detailed insights, you can check the Sao Sebastiao weather in December.
In August, Sao Sebastiao experiences a unique blend of weather characteristics that set it apart from other months. With an average temperature hovering around 19°C (67°F), it offers a comfortable respite from the hotter summer months while still reaching maximums of 31°C (88°F). The 116 mm of rainfall spread over 11 days contributes to a humid atmosphere, typically around 65%, which is a noteworthy contrast to the drier spells of spring and early summer. This combination of mild temperatures and noticeable precipitation makes August an intriguing time to experience the region's lush landscapes. For a deeper understanding of the climate trends throughout the year, visit Sao Sebastiao Climate.