Weather is probably a major factor when you plan your trip to Chosa, and keep 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 temp of 73°F, while the coldest months are January and February with an average of 37°F. The rainiest months in Chosa are July, August, June, and September, with each month seeing an average of 11 inches of rainfall.