September in Cilacap averages a daily high of 29.6°C. Rain is rare — about 1 wet days and 0.7mm across the month. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Cilacap is July–October.
Based on CILACAP, ID (1.1km), 1995–2024. 19 years of September data.