BMKG Ungkap Awal Musim Hujan 2026 Mundur, Ini Perkiraan Cuaca Minggu Ini

Summary

BMKG says Indonesia’s 2026–2027 rainy season is expected to begin later than usual in most areas and will not start nationwide at the same time. Some areas are forecast to enter the season in November 2026, while others will follow in December.

Compared with the climatological average, 529 seasonal zones—about 61.8% of the land area—are expected to have a later start. Only 11 zones are forecast to start early, and 26 to begin on schedule.

Despite the delayed onset, rainfall for the season is expected to be near normal in most of the country. BMKG also forecasts wetter-than-normal conditions in some areas and drier-than-normal conditions in others. The rainy season is expected to peak mainly between December 2026 and February 2027.

For October 2–5, 2026, BMKG expects generally sunny-to-cloudy weather, with light rain in some places. Moderate rain is possible in several provinces, while heavy to very heavy rain—with possible lightning and strong winds—is a concern in Aceh, North Sumatra, West Java, and mountainous Papua.

Strong winds are also possible in parts of Java, Nusa Tenggara, Sulawesi, Maluku, and Papua. BMKG urges residents to monitor updated forecasts as the seasonal transition approaches.

Presenters and Contributors

• Narrator, scriptwriter, video editor, and producer: Wiyudha Betha Dinaragis
• Writers: Afif Khoirul Muttaqin and Resa Eka Ayu Sartika
• Quoted BMKG official: Arda Sena Pahlebakan, Deputy for Climatology