Bali High Tide Warning: September 26-30

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September 24, 2026 — Indonesia’s meteorological agency, BMKG Region III Denpasar, has issued a Bali high tide warning for the island’s southern coast covering September 26–30, with the most dangerous conditions expected on September 26 during the full moon.

Travelers with beach plans on the south coast this week, including Kuta, Nusa Dua, Sanur and Tanah Lot, should check current conditions before swimming or walking close to the waterline.

Which areas are affected?

BMKG’s warning covers the coastal regencies and city along Bali’s south and southwest shoreline:

• Southern Jembrana
• Southern Tabanan (Tanah Lot area)
• Badung (Kuta, Seminyak, Nusa Dua, Jimbaran)
• Denpasar City (Sanur)
• Gianyar
• Southern Klungkung

How high will the waves get?

Forecast tidal wave heights vary by location along the coast:

• Nusa Dua and Sanur: up to 2 meters
• Tanah Lot: up to 1.5 meters
• Kuta: up to 1.25 meters
• Open waters south of Bali: up to 3 meters

According to BMKG Region III Denpasar head Cahyo Nugroho, the high tide is driven by the full moon phase combined with seasonal wind patterns, and could cause seawater to reach further inland than usual in low-lying coastal areas.

Why this matters for travelers

Bali’s high-tide warnings are a routine seasonal event, not a general travel restriction. Beaches remain open, and most hotels and restaurants along the coast operate normally. The risk is specifically about the water’s edge during peak tide windows.

Rip currents and unusually high waves are the main hazard, particularly for swimmers, and beachfront businesses in low-lying spots can see minor flooding at the highest tides. If you’re staying at a beachfront property in Nusa Dua or elsewhere along this stretch, ask staff about the day’s tide schedule.

What travelers should do

1. Avoid swimming close to the highest tide times, especially on September 26.
2. Keep a safe distance from the waterline when walking or taking photos on the beach.
3. Watch for local warning flags at patrolled beaches like Kuta and Sanur.
4. Check with your hotel if you’re staying directly on the beachfront in a low-lying area.
5. Follow official BMKG updates since tide forecasts can shift with weather conditions.

For a broader overview of Bali’s beaches and which ones suit different travel styles, see our Ultimate Bali Beaches guide.

Bottom Line

BMKG has warned of high tides along Bali’s south coast from September 26–30, 2026, peaking on September 26 during the full moon, with waves up to 2 meters at Nusa Dua and Sanur and up to 3 meters in open waters south of the island.

This is a routine seasonal advisory rather than a closure. Beaches and hotels remain open, but travelers should stay clear of the waterline during peak tide hours and follow local safety flags.

Sources

• ANTARA Bali — BMKG high-tide warning for southern Bali coast
• VOI — Bali high tide advisory, September 26–30
• JPNN Bali — High tide warning for Bali beaches
• BMKG Maritime — Official marine and tidal forecast