October in Giresun averages a daily high of 20.1°C with nights around 15.4°C. Expect roughly 17.2 wet days totalling 204.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Giresun is May–October.
Based on GIRESUN, TU (0.4km), 1995–2024. 15 years of October data.