Bora Bora in August

May through October gives you the sweet spot — dry season with trade winds keeping things comfortable. July and August see the most crowds and highest prices, but also the most reliable weather. The wet season from November to April brings humidity, occasional cyclones, and afternoon downpours that can last for days. But here's the upside: hotel rates drop by 30-40% and you'll have beaches mostly to yourself. September hits that perfect balance of good weather and slightly lower crowds. Just avoid March entirely — it's cyclone season and many tour operators shut down. Water temperature stays around 80°F year-round, so swimming is always perfect.