JAKARTA - The Meteorology, Climatology and Geophysics Agency (BMKG) predicts that the majority of major cities in Indonesia have the potential to experience light to moderate rain on Monday, December 1.

In the BMKG weather early warning system, for Sumatra, big cities that have the potential to experience light to moderate rain are Medan, Tanjung Pinang, Jambi, Bengkulu, Palembang, Pangkal Pinang, and Bandar Lampung.

"Aceh and Padang are forecasted to run away. Pekanbaru is forecasted for heavy rain accompanied by lightning," said BMKG forecaster Afif Shalahuddin, quoted by Antara, Monday morning.

Light to moderate rain also has the potential to occur in Serang, Jakarta, Semarang, Yogyakarta, and Surabaya. Meanwhile, Bandung has the potential to experience heavy rain accompanied by lightning.

Likewise, Bali, Lombok, and Kupang are predicted to experience light rain.

On the islands of Kalimantan, Pontianak City and Banjarmasin have the potential to experience heavy rain accompanied by lightning. Meanwhile, Samarinda, Tanjung Selor, and Palangkaraya have the potential to experience light rain.

Meanwhile, on the island of Sulawesi, light to moderate rain is forecast evenly distributed throughout major cities, namely in Makassar, Mamuju, Palu, Gorontalo, and Kendari. Manado is predicted to experience heavy rain accompanied by lightning.

Moving to the easternmost areas, cities such as Ternate, Ambon, Sorong, Nabire, Jayapura, Jayawijaya, and Merauke are predicted to experience light to moderate rain. Meanwhile, Manokwari is forecasted to experience heavy rain accompanied by lightning.

Head of BMKG Teuku Faisal Fathani said that he is currently entering a period of increasing rainfall which marks the transition to the peak of the rainy season.

Based on the analysis of the last three months, rainfall continues to increase significantly, with most areas in the medium to high category.

Faisal explained that the weak La Nina phenomenon is currently underway and is predicted to last until March 2026. However, the impact on increasing rainfall is not considered too significant at the peak of the rainy season.

"Weak La Nina will last until the beginning of 2026, but at the peak of the rainy season the impact on increasing rainfall is not too significant. Even so, high rainfall in that period still needs to be watched out for," he said

BMKG urges local governments and the public to remain alert to the possibility of extreme weather and its impact on daily activities, especially in areas with high rainfall.


The English, Chinese, Japanese, Arabic, and French versions are automatically generated by the AI. So there may still be inaccuracies in translating, please always see Indonesian as our main language. (system supported by DigitalSiber.id)