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Iwamizawa in January

January in Iwamizawa averages a daily high of -2.2°C. Expect roughly 22 wet days totalling 135.7mm. A hard month to visit for comfort alone.

Across the year, the best time to visit Iwamizawa is June–September.

Based on IWAMIZAWA, JA (2.6km), 1995–2024. 24 years of January data.

See all twelve months for Iwamizawa →