August in Giresun averages a daily high of 27.9°C with nights around 22.4°C. Expect roughly 11.3 wet days totalling 67.6mm. 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 August data.