São Sebastião

What is the climate like in São Sebastião?

The best time to visit São Sebastião is typically May – September, with trip comfort peaking in July (9.3/10). São Sebastião is warmest in September, when daily highs average 88°F (31°C), and coolest in July, when lows fall to about 56°F (13°C). The wettest month is typically December and the driest is July; the year sees roughly 43 in (1087 mm) of precipitation.

• Best time to visitMay – September — comfort peaks in July (9.3/10)
• Warmest monthSeptember — average high 88°F (31°C)
• Coolest monthJuly — average low 56°F (13°C)
• Wettest monthDecember (8.7 in (220 mm))
• Driest monthJuly (0.0 in (0 mm))
• Annual precipitation43 in (1087 mm)
• Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
• Records fromBrasilia, 21 km away (1974-2000)