Planning for the weather is a good way to make your trip to Cisarua relaxing and enjoyable, especially when you're splurging. 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.