December in Ajaccio averages a daily high of 15.3°C with nights around 6°C. Expect roughly 10.8 wet days totalling 78.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Ajaccio is May–October.
Based on AJACCIO, FR (4.5km), 1995–2024. 30 years of December data.