December in Hyères averages a daily high of 12.7°C with nights around 7.5°C. Expect roughly 8.8 wet days totalling 76.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Hyères is May–September.
Based on CAP CEPET, FR (15.9km), 1995–2024. 25 years of December data.