Taking the local weather in Pelangi Island 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 October and May, with an average temperature of 28°C, while the coldest months are July and August, with an average of 28°C. The rainiest months in Pelangi Island are February, December, January and March, with each month seeing an average of 278 mm of rainfall.