August in Shizuoka averages a daily high of 31.6°C. Expect roughly 11.2 wet days totalling 178.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Shizuoka is April–June.
Based on SHIZUOKA, JA (1.5km), 1995–2024. 25 years of August data.