Tuesday, September 9, 2025

BMKG: Unusual Rains during Bali Dry Season Expected Through September

Agnes Valentina Christa
July 9, 2025 | 3:17 pm

Water agency workers clear mud left by flooding in Jati Padang, South Jakarta, on Monday, July 7, 2025. (Berita Satu Photo/Joanito De Saojoao)


Jakarta. The Meteorology, Climatology and Geophysics Agency (BMKG) warns of unusually heavy rainfall during what is typically the dry season, with weather anomalies expected to bring extreme rain across parts of the country from July to September.

The unseasonal downpours, already hitting parts of Java and Papua, are being driven by a combination of warmer sea surface temperatures, weakening Australian monsoon winds, and active short-scale atmospheric waves, according to Indra Gustari, Head of Climate Index Prediction at BMKG.

“Rainfall this July, August, and September will be higher than average for the dry season due to these anomalies,” Indra said during a briefing in Jakarta on Wednesday. While rainfall volumes will still be lower than during the wet season, they are significantly above normal dry-season levels, he added.

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