July in Semey averages a daily high of 28.6°C with nights around 15°C. Expect roughly 9.7 wet days totalling 45.4mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Semey is August–September.
Based on SEMEJ, KZ (3.6km), 1995–2024. 30 years of July data.