August in Katori-shi averages a daily high of 28.8°C with nights around 23.2°C. Expect roughly 7.7 wet days totalling 107.9mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Katori-shi is May–October.
Based on CHOSHI, JA (36.5km), 1995–2024. 22 years of August data.