Weather will likely play an important role when you plan your trip to Batang, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually July and August, with an average temperature of 8°C, while the coldest months are January and December, with an average of -5°C. The rainiest months in Batang are July, June, August and September, with each month seeing an average of 265 mm of rainfall.