August in Nasushiobara averages a daily high of 29.1°C. Expect roughly 15.6 wet days totalling 192.2mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Nasushiobara is May–June.
Based on SHIRAKAWA, JA (21.9km), 1995–2024. 25 years of August data.