Indonesia is heading into one of the hottest periods of the year following months of heavy rainfall and flooding across the country. April marks a turning point in the nation’s weather, as the rainy season ends and a prolonged dry season begins.
According to the Meteorology, Climatology, and Geophysics Agency (BMKG), this year’s dry season will be intense. April, in particular, is expected to bring soaring temperatures, especially as the La Niña phenomenon has officially ended.
“La Niña has ended. That means the dry season will return to normal. Hopefully, the weather stays stable,” said BMKG Head Dwikorita Karnawati on Saturday, April 12, 2025.
She explained that the dry season began gradually in March and will continue to expand in April. Regions across the country will start to experience drier days as weather patterns shift.
“The start of the dry season is closely related to the transition of the Asian monsoon, or land winds, shifting into the active Australian monsoon,” Dwikorita added.
Eastern Lampung, the northern coast of West Java, East Java’s coastal areas, parts of Bali, and both West and East Nusa Tenggara are among the regions entering the dry season this April. The dry spell will stretch further by May, covering parts of Sumatra, most of Central and East Java, South Kalimantan, Bali, and southern Papua.
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BMKG also forecasts that the peak of the 2025 dry season will hit in August, affecting most of the country’s seasonal zones (ZOM). The intensity and timing may either align with usual patterns or arrive earlier, but it will likely impact nearly all regions.
The duration of the dry season will vary across the archipelago. Some areas, such as parts of Sumatra and Kalimantan, may only experience about two months of dry weather. Others—like certain regions in Sulawesi—could face dry spells lasting more than eight months.
Over the last two years, April has consistently ranked among the hottest months both in Indonesia and globally. In April 2024, the country’s average temperature hit 27.74°C—the highest recorded in the past 40 years and the hottest since temperature records began.
With the season already unfolding, and April promising to be particularly hot, Indonesians are advised to brace for a period of extreme weather. Stay hydrated, stay safe, and be prepared for what could be one of the most intense dry spells in recent years.
