Climate almanac
Olympia
Washington, United States · 47.04°, -122.90°
What is the weather like in Olympia in September?
In September, Olympia is typically 71°F (22°C) during the day and 54°F (12°C) at night. The month brings about 2.6 in (67 mm) of precipitation in total.
- Average high71°F (22°C)
- Average low54°F (12°C)
- Precipitation2.6 in (67 mm)
- Clear or mostly clear days8
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)