Tonga is a Year-Round Destination
Let's face it: you're not booking a tropical vacation to spend it freezing and unpleasant. Tonga, fortunately, has pleasant weather all year round, albeit there are some seasons with more rainfall and humidity. As a result, it would be wise to consider the season with the desired weather before making travel plans. It is one of the reasons to visit Tonga.
While numerous activities are available throughout the year in Tonga, some periods of the year are preferable to others for a select few. For instance, when humpback whales are in Tonga's seas from July to October, whale watching and swimming cruises are only offered during those months. Due to the fact that many tourists visit Tonga for this purpose, some other tours and lodgings close their doors when there aren't many visitors, especially in Vava'u and Ha'apai.