Warning: Thunderstorms Could Hit Major Indonesian Cities; See the Forecast

Indonesia’s Meteorology, Climatology and Geophysics Agency (BMKG) has forecast varied weather across the country on Monday, ranging from light rain to possible thunderstorms.

BMKG forecaster Puji S said thunderstorms were possible in Tanjung Pinang, while moderate rain was expected in parts of Medan.

Light rain was forecast in Banda Aceh, Padang, Jambi, Palembang, Bandar Lampung and Pangkalpinang, while Pekanbaru and Bengkulu were expected to experience hazy conditions.

Across Java, most areas were forecast to receive light rain, although people in Bandung were advised to be alert to the possibility of moderate rain.

In Bali and Nusa Tenggara, Denpasar and Kupang were forecast to be mostly cloudy to cloudy, while hazy conditions were possible in Mataram.

For Kalimantan, BMKG issued an early warning about the potential for extreme weather in several major cities.

“Be alert to the possibility of thunderstorms in parts of Pontianak and Banjarmasin,” Puji said on Monday (26 October 2026).

Light rain was also forecast in Palangkaraya, Samarinda and Tanjung Selor.

On Sulawesi, light rain was possible in parts of Mamuju, Makassar and Gorontalo.

“Manado, Palu and Kendari are forecast to experience hazy conditions,” Puji said.

In eastern Indonesia, BMKG forecast haze in Ambon and Sorong, mostly cloudy skies in Ternate and Manokwari, and moderate to light rain in Nabire, Jayawijaya, Jayapura and Merauke.