September in Bauang averages a daily high of 23.2°C with nights around 16.1°C. Expect roughly 22.7 wet days totalling 476.5mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Bauang is January–March.
Based on BAGUIO, RP (35.2km), 1995–2024. 20 years of September data.