BMKG Warns of Rougher Southern Waters Around Bali on Sept. 23

Bali — Bali’s weather on Wednesday, Sept. 23, 2026, is forecast to be generally clear to cloudy, with temperatures of 19–32 °C and humidity of 60–90 percent, according to the Meteorology, Climatology and Geophysics Agency (BMKG).

The forecast also places wave heights in southern Bali waters at 0.5–2.5 metres. BMKG issued an early warning that waves could reach 2 metres or more in the southern Bali Strait, Badung Strait, southern Lombok Strait and southern Bali waters.

Why the forecast matters to visitors and residents

For foreigners travelling or living in Bali, the warning applies most directly to activities and transport connected to the island’s southern coast and nearby straits. The forecast identifies a higher wave range in southern waters than in northern Bali waters, where waves are expected to measure 0.5–1.25 metres.

BMKG forecasts winds from the east to southeast at 4–30 kilometres per hour. Sunrise is forecast for 06:08 WITA (UTC+8), while sunset is forecast for 18:15 WITA.

The named areas include the southern section of the Bali Strait, the Badung Strait, the southern section of the Lombok Strait and the waters south of Bali. These are the locations covered by the wave warning, rather than a general closure or islandwide restriction.

BMKG’s public forecast is valid for Sept. 23, 2026. A separate report by Tribun Bali published on Sept. 22 describes the same broad conditions, including clear-to-cloudy weather, temperatures of 19–32 °C, humidity of 60–90 percent and the warning for waves of 2 metres or more in the specified southern waters.

Sources

• BMKG Region III Denpasar — government weather agency
• Tribun Bali — regional news organisation
• detik.com
• bali.idntimes.com