December in León averages a daily high of 8.2°C with nights around 0.2°C. Expect roughly 10.8 wet days totalling 59mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit León is June–September.
Based on LEON VIRGEN DEL CAMINO, SP (6.6km), 1995–2024. 30 years of December data.