Taking the local weather in Petarukan into account is an important factor for planning your visit, especially if you plan to spend your trip by the pool. The hottest months are usually October and September, with an average temperature of 27°C, while the coldest months are July and August, with an average of 27°C. The rainiest months in Petarukan are January, February, December and March, with each month seeing an average of 477 mm of rainfall.