×

Indonesia forecasts wet season will start early November, later than expected

By Thomson Reuters Sep 21, 2026 | 11:25 PM

JAKARTA, Sept 22 (Reuters) – Indonesia is expected to experience a shorter than usual rainy season this year starting in November, the weather agency said ​on Tuesday, with the El Niño weather pattern ‌to last until the first quarter of 2027.

• The agency previously forecast it would come in October, when the wet season usually starts. About 61% of Indonesia’s land area will experience ‌the ​delayed rainy season, agency chief Teuku ⁠Faisal Fathani told a ⁠press conference.

• The wet season is estimated to come early November in most areas of Indonesia including some parts of Kalimantan and the islands of Sumatra, Java ​and Sulawesi, Teuku said.

• The extended dry season had contributed to Indonesia’s most intense wildfires in ⁠11 years as “super El Niño” weather drives ⁠up temperatures and causes droughts.

• Fires ​burned 202,000 hectares  (499,153 acres) of land between January and July, ​official figures show, while environmental group YKAN estimates ‌an additional 600,000 hectares were affected in August.

• The weather agency advised the food sector to adjust planting schedules and choose crop varieties with shorter growing cycles ⁠to anticipate the prolonged dry season.

• The wet season will peak in most parts of Indonesia in December, with ⁠heavy rain still ‌likely in January and February next ⁠year.

• The El Niño weather pattern was ​still ‌having a strong impact in most parts of ​Indonesia during September, ⁠another official Ardhasena Sopaheluwakan said, adding the phenomenon is estimated to last until the first quarter but its impact on drought will end when the wet season comes.

(Reporting by Ananda Teresia, Fransiska Nangoy; Editing by David ​Stanway, Martin Petty)