You'll likely spend much of your trip indoors, but if you want to see more of the area, taking a look at local weather data can help you. 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 2°C. The rainiest months in Sakata are July, August, December and September, with each month seeing an average of 225 mm of rainfall.