January in Alcorcón averages a daily high of 10.9°C with nights around 2.2°C. Expect roughly 7.3 wet days totalling 35.4mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Alcorcón is April–June.
Based on MADRID CUATROVIENTOS, SP (4.7km), 1995–2024. 30 years of January data.