Climate almanac
Rotterdam
New York, United States · 42.79°, -73.97°
What is the weather like in Rotterdam in September?
In September, Rotterdam is typically 74°F (23°C) during the day and 55°F (13°C) at night. The month brings about 4.5 in (115 mm) of precipitation in total.
- Average high74°F (23°C)
- Average low55°F (13°C)
- Precipitation4.5 in (115 mm)
- Clear or mostly clear days10
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)