Taking into account the local weather in Tenghilan is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually June and May with an average temp of 74°F, while the coldest months are February and January with an average of 71°F. The rainiest months in Tenghilan are May, June, November, and January, with each month seeing an average of 20 inches of rainfall.