May in Siracusa averages a daily high of 23°C with nights around 16.5°C. Expect roughly 3.5 wet days totalling 8.7mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Siracusa is April–June.
Based on COZZO SPADARO, IT (45.7km), 1995–2024. 19 years of May data.