April in Pasadena averages a daily high of 24.7°C with nights around 11.2°C. Expect roughly 3.5 wet days totalling 29.2mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Pasadena is March–June.
Based on PASADENA, CA US (0.1km), 1995–2024. 30 years of April data.