April in Retiro averages a daily high of 19.1°C with nights around 8.5°C. Expect roughly 8.8 wet days totalling 47.9mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Retiro is May–June.
Based on MADRID RETIRO, SP (0.5km), 1995–2024. 30 years of April data.