Planning for the weather is an important factor for making your trip to Matsushima a success, especially when you’re splurging. The hottest months are usually August and July, with an average temperature of 22°C, while the coldest months are February and January, with an average of 3°C. The rainiest months in Matsushima are September, August, October and July, with each month seeing an average of 199 mm of rainfall.