Climate almanac
Waterville
Maine, United States · 44.55°, -69.63°
What is the weather like in Waterville in September?
In September, Waterville is typically 70°F (21°C) during the day and 55°F (13°C) at night. The month brings about 2.9 in (73 mm) of precipitation in total.
- Average high70°F (21°C)
- Average low55°F (13°C)
- Precipitation2.9 in (73 mm)
- Clear or mostly clear days11
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)