July in Siedlce averages a daily high of 25.1°C with nights around 12.7°C. Expect roughly 12.8 wet days totalling 71.2mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Siedlce is May–September.
Based on SIEDLCE, PL (9.5km), 1995–2024. 30 years of July data.