August in Morioka averages a daily high of 28.6°C. Expect roughly 13.3 wet days totalling 187.3mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Morioka is May–June.
Based on MORIOKA, JA (1.5km), 1995–2024. 19 years of August data.