Climate almanac
Hilo
Hawaii, United States · 19.73°, -155.09°
What is the weather like in Hilo in September?
In September, Hilo is typically 78°F (26°C) during the day and 73°F (23°C) at night. The month brings about 4.7 in (119 mm) of precipitation in total.
- Average high78°F (26°C)
- Average low73°F (23°C)
- Precipitation4.7 in (119 mm)
- Clear or mostly clear days7
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)