Climate almanac
Keyport
New Jersey, United States · 40.43°, -74.20°
What is the weather like in Keyport in September?
In September, Keyport is typically 77°F (25°C) during the day and 64°F (18°C) at night. The month brings about 3.6 in (92 mm) of precipitation in total.
- Average high77°F (25°C)
- Average low64°F (18°C)
- Precipitation3.6 in (92 mm)
- Clear or mostly clear days11
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)