Planning for the weather is an important factor for making your trip to Kotohira a success, especially when you’re splurging. The hottest months are usually August and July, with an average temperature of 24°C, while the coldest months are January and February, with an average of 7°C. The rainiest months in Kotohira are June, July, September and August, with each month seeing an average of 227 mm of rainfall.