BMKG Forecasts Most of Indonesia's Regions Will Be Cloudy to Rain with Strong Winds

JAKARTA - The BMKG issued an early warning in the form of the potential for light, moderate, and heavy rain, which may be accompanied by lightning and strong winds in various major cities in Indonesia on Saturday.

Quoting Antara, Prakirawan Diah Ayu explained that in general, the convergence area extends in the southern Arafuru Sea, South Papua, the west coast of the North Pacific Ocean of Halmahera Island and the Northwest Pacific Ocean of Papua.

This condition is able to increase the potential for rain cloud growth along the areas that are passed by convergence or confluence.

Therefore, his party estimates that several major cities will have the potential to experience moderate to heavy rain accompanied by lightning and strong winds, the Jakarta, Serang, Denpasar, Jayapura, and Merauke regions.

Meanwhile, several other major cities will experience light to moderate rain, namely Tanjung Pinang, Palembang, Bandung, Semarang, Yogyakarta, Tanjung Selor, Mataram, Kupang, Mamuju, Makassar, Kendari, Manokwari, Nabire, and Jayawijaya.

Meanwhile, several other major cities are expected to only experience cloudy conditions today, including the Banda Aceh, Medan, Pekanbaru, Jambi, Bengkulu, Bandar Lampung, Pangkal Pinang, Surabaya, Pontianak, Palangkaraya, Banjarmasin, Samarinda, Palu, Gorontalo, Manado, Ternate, Ambon, and Sorong regions.

Previously on Friday (23/1), the central government asked provincial and district/city governments that were on alert and alert levels for potential hydrometeorological disasters to activate disaster standby posts and emergency handling command systems.

"The BMKG early warning document must be a direct reference for regional heads and all regional devices in activating the readiness system," said Coordinating Minister for Human Development and Culture (PMK) Pratikno.

The Meteorology, Climatology, and Geophysics Agency (BMKG) has issued an Early Warning for Indonesian Weather and a Weekly Weather Outlook for the period of January 23-29, 2026.

Based on the official BMKG document, in the period from January 23 to 25, 2026, a number of areas were included in the Alert to Warning level for heavy to extreme rain. For January 23, 2026, BMKG set the warning level (very heavy-extreme rain) namely Banten, DKI Jakarta, East Java.