Climate almanac
Smyrna
Delaware, United States · 39.30°, -75.60°
What is the weather like in Smyrna in September?
In September, Smyrna is typically 79°F (26°C) during the day and 65°F (19°C) at night. The month brings about 3.9 in (100 mm) of precipitation in total.
- Average high79°F (26°C)
- Average low65°F (19°C)
- Precipitation3.9 in (100 mm)
- Clear or mostly clear days12
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)