Weather will likely play an important role when you plan your trip to Jepara, but bear 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 temperature of 28°C, while the coldest months are July and August, with an average of 27°C. The rainiest months in Jepara are January, December, February and March, with each month seeing an average of 417 mm of rainfall.