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January in Iwata averages a daily high of 10.4°C. Expect roughly 5.2 wet days totalling 50.2mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Iwata is April–June.
Based on HAMAMATSU, JA (12.3km), 1995–2024. 28 years of January data.
See all twelve months for Iwata →