November in Gemlik averages a daily high of 16.7°C with nights around 5.8°C. Expect roughly 10.2 wet days totalling 73.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Gemlik is April–October.
Based on BURSA, TU (28.7km), 1995–2024. 19 years of November data.