5 things over the rainy season arrive earlier in Indonesia

Jakarta – The Meteorology Climatology and Geophysics Agency (BMKG) predicts the rainy season in Indonesia will come earlier this year. This condition differs from usually. This explanation was conveyed by the head of BMKG Dwikorita Karnati at a press conference last Friday (12/9). He said parts of Indonesia have started raining since August last year and will expand within the next few months. This prediction is a warning as well as an opportunity. On the one hand, the potential for hydrometeorological disasters such as floods and landslides should be expected. On the other hand, a faster rainy season can be used by the agricultural sector to increase productivity. Browse to continue with the content from the September-November Dwikorita Karnati, said that the beginning of the rainy season this year tends to progress in most parts of Indonesia. Based on data from 699 seasonal zone (zom), there are 294 zom or 42.1 percent, which is estimated to experience a faster rainy season than usual. “The rainy season is expected to take place from August 2025 to April 2026, with a variety of rain peaks, most of them took place in Sumatra and Kalimantan in November-December 2026, and January-February 2026 in Java, Sulawesi, Maluku and Papua,” Dwikorita said at a press conference. It is predicted that a total of 79 Zoms entered the rainy season in September 2025, followed by 149 Zom in October, and 105 Zom in November. Meanwhile, a small part of the region is expected to slow down the rainy season. The trigger factor came earlier, while deputy of the BMKG climatology Ardhasena explained Sopaheluwakan, global and regional factors also affected the acceleration of the rainy season this year. In August 2025, the phenomenon of El Niño-Southern Oscillation (ENSO) was recorded in a neutral state, so it did not have a significant effect. However, the Indian Ocean Dipole (IOD) is in the negative phase, which is an indication of the offer of additional water vapor from the Indian Ocean to Indonesia, especially the western part. In addition, the temperature of the sea level around Indonesian waters is also warmer than the average, which encourages the formation of more intensive rain clouds. Negative Jodes are expected to last until November 2025, while neutral ENSO will last until the end of the year. Potential threats of BMKG -Hydrometeorology estimate that the nature of rain in the period 2025/2026 is generally normal. But there are 193 zom or 27.6 percent of areas that have the potential to experience rainfall above normal, especially in Western Java, Central -java, various regions of Sulawesi, Maluku and Papua. “This condition must be watched because it increases the potential for floods, flash floods, landslides, to strong wind,” says Dwikorita. He emphasizes the need for mitigation steps from an early age, ranging from drainage improvement, reservoir management, to the readiness of the evacuation of the community in vulnerable areas. In addition to the hydrometeorological disaster, BMKG also reminded the health risks to it. Increased humidity in December 2025-January 2026 has the potential to cause the spread of tropical diseases, such as dengue-hemorrhagic fever (DHF). A positive impact on the agricultural and energy sector, although pose the risks, also offers a faster rainy season. BMKG assesses that this condition can be used by the agricultural sector to adjust the plant pattern earlier. “It can increase productivity while supporting food care efforts,” Ardhasena said. In addition to agriculture, the energy sector can also benefit from the optimization of reservoir filling since the beginning of the rainy season, so that the availability of water is maintained. Dwikorita added: Plantation management must also be adjusted. High humidity can increase pest attacks, so early control must be done. People should be willing to face the rainy season this year. BMKG calls on all stakeholders to be more vigilant. Expectation early in agriculture, energy, plantations, health, disaster is needed, so that negative consequences can be reduced. “BMKG has improved the climate and resistance services services through mobile applications, social media and direct communication with local governments. This information can be used for planning, mitigation and proper decision making,” Dwikorita said. The rainy season that comes faster is a reminder of the importance of preparedness. With the synergy of government, the community and related sectors, the threat of disasters can be minimized, and positive opportunities can be optimized. (Maa/maa)