If you're looking forward to lots of outings with your partner, check out these details about year-round temperatures in Cisarua: The hottest months are usually September and October with an average temp of 73°F, while the coldest months are July and August with an average of 72°F. The rainiest months in Cisarua are November, April, December, and March, with each month seeing an average of 18 inches of rainfall.