January in Owariasahi averages a daily high of 9.3°C. Expect roughly 6.2 wet days totalling 37.5mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Owariasahi is April–May.
Based on NAGOYA, JA (7.3km), 1995–2024. 23 years of January data.