Climate almanac
UC Irvine
California, United States · 33.64°, -117.84°
What is the weather like in UC Irvine in September?
In September, UC Irvine is typically 82°F (28°C) during the day and 65°F (18°C) at night. The month brings about 0.3 in (8 mm) of precipitation in total.
- Average high82°F (28°C)
- Average low65°F (18°C)
- Precipitation0.3 in (8 mm)
- Clear or mostly clear days22
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)