December in Zaragoza averages a daily high of 11.1°C with nights around 3.4°C. Expect roughly 6.7 wet days totalling 20.8mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Zaragoza is April–May.
Based on ZARAGOZA AEROPUERTO, SP (10.9km), 1995–2024. 30 years of December data.