July in Siirt averages a daily high of 37.7°C with nights around 24.8°C. Rain is rare — about 0.8 wet days and 1.8mm across the month. Generally workable, with some weather to plan around.
Across the year, the best time to visit Siirt is April–May.
Based on SIIRT, TU (1.6km), 1995–2024. 12 years of July data.