Climate almanac
Port Antonio
Portland Parish, Jamaica · 18.18°, -76.45°
What is the weather like in Port Antonio in September?
In September, Port Antonio is typically 84°F (29°C) during the day and 79°F (26°C) at night. The month brings about 4.4 in (113 mm) of precipitation in total.
- Average high84°F (29°C)
- Average low79°F (26°C)
- Precipitation4.4 in (113 mm)
- Clear or mostly clear days9
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)