If you’re hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Silang: The hottest months are usually May and April with an average temp of 81°F, while the coldest months are January and February with an average of 77°F. The rainiest months in Silang are July, September, August, and June, with each month seeing an average of 19 inches of rainfall.