You might spend a lot of your holiday inside, but if you're planning to venture beyond the casino, taking a look at local weather data can help you. The hottest months are usually August and July, with an average temperature of 20°C, while the coldest months are February and January, with an average of 0°C. The rainiest months in Shinjo are July, August, December and September, with each month seeing an average of 234 mm of rainfall.