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Live forecasts update automatically; written guidance last reviewed 23 June 2026 by the Australia Data Weather Desk. Data from the Bureau of Meteorology (BOM) and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
The live forecast above shows current conditions, but extreme waves in Bali are typically caused by large Southern Ocean swells during the dry season (May–September); these can exceed 4 metres along exposed southern coasts, creating dangerous surf for all but the most experienced surfers.
What makes Bali’s waves turn extreme?
When a strong low-pressure system develops south of Java, it can send powerful, long-period swells towards Bali’s south-facing beaches. The underwater topography off Uluwatu and Bukit Peninsula amplifies these swells, producing sudden, large waves that break heavily. The live forecast above will show a heightened swell period and height — anything above 3 metres at a 14-second interval signals extreme conditions. For the latest updates, check our Bali weather hub or the local Seminyak forecast.
How can you stay safe when waves become extreme?
Never turn your back on the ocean; extreme waves can sweep people off rocks and beaches without warning. Always check official warnings from BMKG (Indonesia’s meteorological agency) and use real-time tools such as a bali surf cam live feed or windguru uluwatu reports. If you are planning to surf, consult a bali surf forecast 14 days outlook and avoid reefs during peak swell. Remember that even experienced swimmers can be caught out by rip currents that accompany extreme swells.
When are Bali’s waves most likely to become extreme?
The dry season (May–September) brings consistent long-period swells from the Southern Ocean. The most dangerous waves often arrive after a low-pressure system intensifies south of Java, which can be seen in the live forecast above. November to March tend to be calmer, with smaller swells from the north-west.
Where can I find reliable surf forecasts for Uluwatu?
Many surfers check surf forecast uluwatu on Windguru or Magicseaweed’s bali surf forecast magicseaweed page; these models combine swell height, period, and wind direction. For a detailed outlook, a bali waves forecast from WillyWeather also incorporates BMKG warnings. Always cross-reference with live cams before heading out.
What should I do if I see a BMKG extreme wave warning?
Stay well back from the waterline, avoid rocky headlands, and never attempt to swim or surf. The live forecast above will likely show a steep rise in swell height. If you are inland, you are safe; if near the coast, move to higher ground immediately. Tourists should follow lifeguard instructions and check our severe weather warning page for safety tips.