August in Chichibu averages a daily high of 31.5°C. Expect roughly 12.6 wet days totalling 169.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Chichibu is September–November.
Based on CHICHIBU, JA (1.2km), 1995–2024. 25 years of August data.