December in Kuşadası averages a daily high of 15°C with nights around 9.4°C. Expect roughly 10.2 wet days totalling 114.3mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Kuşadası is April–May.
Based on SAMOS AIRPORT, GR (34.8km), 1995–2024. 12 years of December data.