Weather is probably a major factor when you plan your trip to Kamenari, 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 74°F, while the coldest months are January and February with an average of 47°F. The rainiest months in Kamenari are November, December, January, and March, with each month seeing an average of 12 inches of rainfall.