Weather can make or break a roadtrip, so we’ve gathered some data about year-round temperatures in Miya to help you plan yours. The hottest months are usually August and July with an average temp of 75°F, while the coldest months are January and February with an average of 41°F. The rainiest months in Miya are July, August, June, and September, with each month seeing an average of 9 inches of rainfall.