December in Tanba averages a daily high of 10.5°C. Expect roughly 17.5 wet days totalling 154mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Tanba is May–June.
Based on MAIZURU REGIONAL MET HQ, JA (41.8km), 1995–2024. 22 years of December data.