Start of Dry Season in April 2026 in Indonesia: List of Affected Regions
The Indonesian Agency for Meteorology, Climatology, and Geophysics (BMKG) has released predictions for the start of the 2026 dry season in Indonesia, which will occur gradually beginning in April. This information is crucial for the public to prepare for agricultural activities, water availability, and anticipating dry weather conditions.
The forecast for the start of the dry season in April 2026 indicates that several regions in Indonesia will enter the dry period earlier than others. So, which regions are expected to begin the dry season in April 2026, and what is BMKG’s overall prediction?
Forecast for the Start of the 2026 Dry Season
BMKG, through its publication ‘Prediction of the Dry Season 2026 in Indonesia’, states that the start of the dry season in 2026 will occur gradually across various regions. Most of Indonesia is expected to enter the dry season during the April, May, and June 2026 period, beginning in Nusa Tenggara and expanding to other areas.
According to the BMKG publication, around 114 Seasonal Zones (ZOM), or 16.3% of the territory, are predicted to start the dry season in April 2026, followed by 184 ZOM in May and 163 ZOM in June. This forecast shows that the seasonal transition will occur gradually and not simultaneously across all of Indonesia.
Regions Entering the Dry Season Early in April
BMKG notes that the regions predicted to enter the start of the dry season in April 2026 include the northern coast of western Java, the northern and southern coasts of Central Java, most of the Special Region of Yogyakarta, parts of East Java, parts of Bali, West Nusa Tenggara, East Nusa Tenggara, and a small part of South Sulawesi.
Overall, the start of the dry season in Indonesia does not occur simultaneously. Out of a total of 699 ZOM, a small portion of regions will begin the dry season as early as February and March, while other areas will enter the dry period in subsequent months. This demonstrates the varying climate characteristics across Indonesia’s regions.
BMKG’s Prediction for the 2026 Dry Season
BMKG also predicts that most of Indonesia will experience the start of the dry season earlier than normal conditions. Approximately 46.5% of the territory is expected to have an earlier dry season compared to the climatological average for the 1991-2020 period.
Additionally, the peak of the dry season is forecasted to occur from July to September 2026, with most regions experiencing drier conditions than normal. This information serves as an important reference for the agriculture, water resources, energy, and disaster management sectors in preparing anticipatory measures against potential droughts.
The BMKG’s 2026 dry season prediction can serve as a reference for the public and local governments in facing the dry period starting from April. By understanding the regions that will enter the dry season first, anticipatory steps such as water management and activity adjustments can be taken earlier.