September in Narbonne averages a daily high of 25.9°C with nights around 16.3°C. Expect roughly 5.4 wet days totalling 35.2mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Narbonne is April–June.
Based on PERPIGNAN, FR (50.8km), 1995–2024. 30 years of September data.