Taking the local weather in Koror into account is an important factor for planning your visit, especially if you plan to spend your trip by the pool. The hottest months are usually May and June, with an average temperature of 28°C, while the coldest months are February and March, with an average of 28°C. The rainiest months in Koror are July, June, May and August, with each month seeing an average of 398 mm of rainfall.