May in Katori-shi averages a daily high of 20.8°C with nights around 14.9°C. Expect roughly 11.1 wet days totalling 147.5mm. 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. 21 years of May data.