Climate almanac
São Sebastião
São Paulo, Brazil · -23.76°, -45.41°
What is the weather like in São Sebastião in September?
In September, São Sebastião is typically 73°F (23°C) during the day and 66°F (19°C) at night. The month brings about 3.4 in (87 mm) of precipitation in total.
- Average high73°F (23°C)
- Average low66°F (19°C)
- Precipitation3.4 in (87 mm)
- Clear or mostly clear days9
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)