If you’re hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Sikao: The hottest months are usually March and April with an average temp of 81°F, while the coldest months are January and February with an average of 79°F. The rainiest months in Sikao are September, October, November, and May, with each month seeing an average of 12 inches of rainfall.