Jakarta, cartitleloans Indonesia
—
Head of the Meteorology, Climatology and Geophysics Agency (
BMKG
) Teuku Faisal Fathani reveals the current climate phenomenon
La Niña
appeared in Indonesia ahead of the peak of the rainy season.What is the impact?
According to Faisal, the weak La Nina phenomenon is currently ongoing and is predicted to last until March 2026. However, its impact on increasing rainfall is not very significant during the peak of the rainy season.
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“Weak La Nina will last until early 2026, but at the peak of the rainy season the impact on additional rainfall will not be very significant. However, high rainfall during that period still needs to be watched out for,” said Faisal, at a disaster preparedness call, Tuesday (4/11), reported on the official BMKG website.
A number of regions in Indonesia have entered the peak phase of the rainy season this November.This phase is predicted to last until February 2026.
According to BMKG records as of the end of October, 43.8 percent of Indonesia’s territory or the equivalent of 306 Season Zones (ZOM) has officially entered the rainy season.This season’s transition has the consequence of increasing the potential for extreme weather in various regions, ranging from heavy rain, strong winds, to the threat of tropical cyclones from the south of Indonesia.
Based on the agency’s analysis, in the last three months rainfall has continued to increase significantly, with most areas in the medium to high category.
BMKG noted that rainfall in the high to very high category has the potential to occur in southern Indonesia, including Java, Bali, West Nusa Tenggara, East Nusa Tenggara, South Sulawesi, and southern Papua.Meanwhile, from February to April 2026, most parts of Indonesia are predicted to experience medium category rainfall and gradually start to return to normal.
During the November-December 2025 period, most parts of Indonesia will still experience above normal rainfall, especially in northern Sumatra, northern Kalimantan, northern Sulawesi and North Maluku.
The combination of global and regional factors such as weak La Nina and negative Dipole Mode (-1.61) causes the atmosphere to remain unstable and supports the formation of convective clouds in a number of regions.This increases the potential for heavy rain accompanied by strong winds, especially in North Sumatra, West Java, Central Java, Yogyakarta, East Java, Banten, NTB and South Sulawesi.
BMKG also detected the presence of Tropical Cyclone Kalmaegi in the Indian Ocean southwest of Lampung as well as several other cyclonic circulations which also influence national weather dynamics.In the next week, 3-9 November, rain with moderate to heavy intensity has the potential to occur on the west coast of Sumatra, most of Java, Bali, Nusa Tenggara, Kalimantan, Maluku and Papua.
(dmi/dmi)
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