December in Izumo averages a daily high of 11.1°C. Expect roughly 21.4 wet days totalling 161.2mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Izumo is May–June.
Based on MATSUE, JA (28.8km), 1995–2024. 20 years of December data.