Climate almanac
Ottawa
Kansas, United States · 38.62°, -95.27°
What is the weather like in Ottawa in September?
In September, Ottawa is typically 83°F (29°C) during the day and 63°F (17°C) at night. The month brings about 2.9 in (74 mm) of precipitation in total.
- Average high83°F (29°C)
- Average low63°F (17°C)
- Precipitation2.9 in (74 mm)
- Clear or mostly clear days17
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)