There's nothing like an all-inclusive vacation in Nananu-i-Ra to refresh you, especially when you know what to expect from the elements. Here's some info to help you choose when to book: The hottest months are usually February and March with an average temp of 81°F, while the coldest months are August and July with an average of 76°F. July and June are the driest months while March and December are the rainiest months.