Freediving conditions
in the Philippines

Each region gets a single 0–10 score, refreshed daily from marine and weather forecast data. The biggest factor is how calm or wavy the sea is (wave height), followed by wind, estimated visibility and water temperature. If waves, wind or current cross safe limits, a hard hazard cap overrides the score and flags the region as unsafe for entry.

Estimated visibility is modeled, not measured — no marine weather service reports underwater clarity directly. We estimate it from recent rainfall (runoff and plankton), near-shore wind-wave height (which stirs up sediment) and swell period (long-period groundswell leaves the water cleaner than short wind chop). Treat it as a guide, and always confirm with your local host.

You can freedive in Anilao and the wider Batangas coast year-round — the water rarely drops below 26°C and sits around 28–30°C for much of the year, comfortable in a thin wetsuit. What shifts with the calendar is how calm and clear the sea is, and that comes down to the two monsoons that shape Philippine weather.

The amihan (northeast monsoon, roughly November to February) brings cooler, drier air and settled conditions to the sheltered coves of the Verde Island Passage — mornings are often glassy and visibility opens up. The hot transition months of March to May are typically the calmest and clearest of all, which is why they're the peak freediving window for Anilao, Bagalangit, Talaga and San Teodoro.

The habagat (southwest monsoon, roughly June to September) is the wetter, rougher stretch: southwest swell pushes onto west-facing Batangas coves and heavy rain stirs up runoff, which is the main reason estimated visibility drops in those months. Diving doesn't stop, though — calm windows still open between weather systems, and that's exactly what today's score and the 7-day outlook above are built to help you catch. When in doubt, pick a Good or Perfect day and confirm with a local host before you go.