September in Nikšić averages a daily high of 23.1°C with nights around 11.8°C. Expect roughly 9.1 wet days totalling 138mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Nikšić is June–October.
Based on NIKSIC, MJ (1.5km), 1995–2024. 21 years of September data.