December in Girona averages a daily high of 14.4°C with nights around 2.1°C. Expect roughly 4.6 wet days totalling 41.4mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Girona is March–June.
Based on GIRONA COSTA BRAVA, SP (9.4km), 1995–2024. 30 years of December data.