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Overall Best Season: Dry Season Dominance (May-September)
The dry season, roughly spanning from May to September, is widely recommended as the most reliable period for excellent snorkeling conditions across Bali. During these months, the seas are typically calmer, and there is less rainfall, which significantly reduces freshwater run-off into coastal waters. This combination leads to consistently better underwater visibility, making it easier to spot reef fish, turtles, and the intricate coral structures. On Bali’s east and northeast coasts, including popular areas like Amed and Tulamben, these conditions are particularly stable. Snorkelers can expect more predictable experiences with less swell affecting boat trips or shore entries. Water temperatures remain comfortably warm, generally in the 26–29 °C range, meaning most people only need a rash guard or no wetsuit at all. This period sees many visitors, so while conditions are prime, some sites might experience more boat and shore traffic, which is worth considering. Many operators advise using bright snorkel floats or staying close to guides, especially in shared areas with divers.