Raja Ampat experiences two main seasons: the dry season and the rainy season. The dry season typically runs from October to April, offering calmer seas and clearer skies, making it an ideal time for diving and other water activities. The rainy season occurs from May to September, characterized by increased rainfall and rougher seas, although diving is still possible during this time. It's important to note that weather patterns can vary, so it's always a good idea to check local forecasts before planning your trip.