Indonesia's Meteorological, Climatological, and Geophysical Agency (BMKG) predicts light rain across much of the country on Tuesday, January 6, 2026—continuing the rainy season pattern seen in prior forecasts like December 11, 2025. Moderate rain is expected in Kendari, thunderstorms possible in select areas, clear skies only in Yogyakarta, and cloudy conditions elsewhere including Jakarta.
Light-intensity rain is forecast for major cities including Ambon, Banda Aceh, Bandar Lampung, Bandung, Denpasar, Gorontalo, Makassar, Manado, Medan, Palangka Raya, Pangkal Pinang, Samarinda, Semarang, Serang, Sofifi, Sorong, Surabaya, and Tanjung Pinang.
Moderate rain is expected in Kendari, with potential thunderstorms in Banjarbaru, Kupang, Merauke, and Tanjung Selor. Clear skies are limited to the Special Region of Yogyakarta (DIY).
Cloudy conditions prevail in Bengkulu, Jambi, Jakarta, Jayapura, Jayawijaya, Mamuju, Manokwari, Mataram, Nabire, Padang, Palembang, Palu, Pekanbaru, and Pontianak.
BMKG advises vigilance for sudden changes, adjusting activities to avoid risks like minor flooding or transport issues. No major discrepancies with other sources.