BMKG Forecasts Moderate Rainfall in Jakarta and Bandung Today
The Meteorological, Climatological and Geophysical Agency (BMKG) has predicted moderate rainfall in Jakarta, Bengkulu, Bandung, Semarang and Tanjung Selor on Monday, 9 March 2026. Meanwhile, rainfall accompanied by lightning is forecast in Bandar Lampung and Banjarmasin.
“There is also potential for light rainfall in Medan, Padang, Pangkal Pinang, Palembang, Serang, Yogyakarta, Surabaya, Pontianak, Samarinda and Palangkaraya,” said BMKG forecaster Diahayu R, as monitored on Instagram on Sunday, 8 March 2026.
Diahayu continued that there is also potential for thick cloud cover and cloudy conditions in Banda Aceh, Tanjung Pinang, Pekanbaru and Jambi.
For eastern Indonesia, rainfall accompanied by lightning is forecast in Merauke. Moderate rainfall is predicted in Kupang, Mamuju and Makassar. Light rainfall is also possible in Denpasar, Mataram, Kendari, Palu, Gorontalo, Manado, Ambon, Ternate, Sorong, Manokwari, Dabire, Jayapura and Jayawijaya.
Diahayu stated that tropical cyclone precursor 93S, as of Sunday, 8 March 2026, is located in the Indian Ocean, south of Lampung. Wind speeds are approximately 30 knots with air pressure of 999 hectopascals, moving south-westward. However, the likelihood of this cyclone precursor developing into a full tropical cyclone within the next 48 hours is considered low.
Within 48–72 hours, its strength is forecast to weaken, with wind speeds dropping to approximately 25 knots and air pressure rising to 1000 hectopascals, continuing to move south-westward.
This cyclone precursor, according to Diahayu, triggers strong wind currents in the lower atmospheric layer over the Indian Ocean south of Lampung. This flow forms wind convergence and wind shear in the region. According to the official, these conditions could trigger rainfall cloud formation.
Additionally, tropical cyclone precursor 95W is located in the northern Pacific Ocean north of Papua. Wind speeds are approximately 15 knots with air pressure of 1006 hectopascals, moving north-westward.
Its potential to develop into a tropical cyclone within the next 48 hours is also low. Within 48–72 hours, this system is forecast to weaken and gradually dissipate. This cyclone precursor also causes strong wind currents and wind convergence in the northern Pacific region north of Papua up to northern West Papua and around Halmahera.
Additionally, wind vortices (cyclonic circulation) exist in waters west of Aceh and in the Sulawesi Sea. These systems form wind convergence zones from waters west of Aceh to the Aceh region, as well as in the Sulawesi Sea. These conditions can increase rainfall cloud growth in surrounding areas.
According to Diahayu, due to a combination of these atmospheric conditions, significant weather potential can occur in several Indonesian regions. There is potential for heavy to very heavy rainfall in Bengkulu, Lampung, West Java, Central Java, East Java and East Nusa Tenggara.