Judul : Although Indonesia has entered the dry season, BMKG reveals the reasons why most areas are experiencing extreme rain
link : Although Indonesia has entered the dry season, BMKG reveals the reasons why most areas are experiencing extreme rain
Although Indonesia has entered the dry season, BMKG reveals the reasons why most areas are experiencing extreme rain
Best for you - The Indonesian Meteorological, Climatological, and Geophysical Agency (BMKG) stated that although Indonesia has entered the dry season climatologically, most regions of the country are still experiencing extreme rainfall.
The head of BMKG, Dwikorita Karnawati, explained that this phenomenon is the result of a series of atmospheric and oceanic anomalies that have occurred since May 2025.
"Monthly rainfall prediction results show that the rainfall anomaly that has been occurring since May 2025 will continue, with above-normal rainfall conditions in most parts of Indonesia until October 2025," said Dwikorita in a virtual press conference titled "Weather and Climate Development," on Monday (7/7).
Dwikorita explained that the weakening of the Australian Monsoon, which usually brings dry air during the dry season, contributes to the warm sea surface temperatures in southern Indonesia. This triggers increased evaporation and the formation of rain clouds in many areas.
In addition, active Kelvin waves crossing the northern coast of Java, wind deceleration and deflection in western and southern Java, as well as wind convergence cause accumulation of air mass, accelerating the formation of rain. BMKG together with several global climate centers also recorded that the ENSO phenomenon in the Pacific Ocean and the IOD in the Indian Ocean are in a neutral condition.
"This strengthens the prediction that most regions of Indonesia will experience a wet dry season, still accompanied by high rainfall," said Dwikorita.
BMKG previously predicted that this year's dry season would experience a delay of about 29 percent of the rainy season zone (ZOM), especially in Lampung, Java Island, Bali, NTB, and NTT. Data up to the end of June 2025 shows that only 30 percent of ZOM have truly entered the dry season, much lower than the climatological average of 64 percent at the same time.
Dwikorita highlighted that extreme weather has recently affected several densely populated areas and tourist destinations.
"On July 5, 2025, heavy rain of more than 100 mm per day occurred in Bogor, Mataram, and some areas of South Sulawesi, causing floods, flash floods, and landslides," he said.
She said, the Jakarta and Tangerang areas were also hit by heavy rain, causing puddles and traffic disruptions.
Therefore, BMKG warns that the potential for extreme weather remains high in the next week, especially in the western and central parts of Java, East Kalimantan, South Sulawesi, NTB, Maluku, and Papua.
"From July 10-12, 2025, significant rainfall is expected to shift to central and eastern parts of Indonesia as atmospheric disturbances shift," he said.
Meanwhile, Tri Handoko Seto, Deputy of Weather Modification Sector of BMKG, stated that his agency has conducted Weather Modification Operation (OMC) together with BNPB and DKI Jakarta Provincial Government. The weather modification is expected to reduce the rainfall in the areas around Jabodetabek.
"OMC in Jakarta and West Java has started today until July 11. We continue to coordinate with the local government and BNPB regarding funding and field implementation," he concluded.
BMKG urges the community to remain alert to the potential of heavy rain accompanied by lightning, thunder, and strong winds, and to enhance preparedness for threats from hydro-meteorological disasters. The public is requested to regularly monitor current weather information through the InfoBMKG application, the official BMKG website (www.bmkg.go.id), official social media, or call center 196.
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