Weather will likely play an important role when you plan your trip to Mihara, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually August and July, with an average temperature of 23°C, while the coldest months are January and February, with an average of 5°C. The rainiest months in Mihara are July, June, August and September, with each month seeing an average of 248 mm of rainfall.