Climate almanac
Renton
Washington, United States · 47.48°, -122.22°
What is the weather like in Renton in September?
In September, Renton is typically 71°F (22°C) during the day and 55°F (13°C) at night. The month brings about 2.9 in (74 mm) of precipitation in total.
- Average high71°F (22°C)
- Average low55°F (13°C)
- Precipitation2.9 in (74 mm)
- Clear or mostly clear days9
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)