Climate almanac
Cayenne
Guyane, French Guiana · 4.94°, -52.33°
What is the weather like in Cayenne in September?
In September, Cayenne is typically 87°F (31°C) during the day and 78°F (26°C) at night. The month brings about 1.6 in (40 mm) of precipitation in total.
- Average high87°F (31°C)
- Average low78°F (26°C)
- Precipitation1.6 in (40 mm)
- Clear or mostly clear days15
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)