Taking into account the local weather in Tiga Island is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually May and April with an average temp of 81°F, while the coldest months are February and March with an average of 80°F. The rainiest months in Tiga Island are November, January, May, and December, with each month seeing an average of 12 inches of rainfall.