Weather is probably a major factor when you plan your trip to Ponorogo, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually October and September with an average temp of 78°F, while the coldest months are August and July with an average of 76°F. The rainiest months in Ponorogo are February, March, January, and December, with each month seeing an average of 18 inches of rainfall.