Scorching Weather Warnings: BMKG Alerts of Continued Heavy Rainfall Across Indonesia
Jakarta, CNBC Indonesia – Volatile weather patterns are occurring across Indonesian regions during the period of 12-15 March 2026. In several areas, BMKG recorded rainfall with heavy intensity. For example in Central Sulawesi, Aceh, North Sumatra, South Papua, North Kalimantan, and East Java.
However, during the same period, several other areas are experiencing scorching weather. For instance in East Java where temperatures reached 35 degrees Celsius. Subsequently West Java at 37.2 degrees Celsius, Kalimantan at 36.4 degrees Celsius, and Banten at 36.2 degrees Celsius.
On its official page, BMKG stated that the “scorching heat” conditions occur alongside rainfall distribution that tends to shift towards eastern Indonesian regions, causing several other areas to experience reduced cloud cover and more optimal reception of solar radiation.
This is marked by positive OLR anomalies indicating relatively minimal cloud growth. Additionally, the sun’s apparent annual movement closer to the equatorial region also contributes to increased surface warming, such that during daytime conditions feel more intense in several regions.
Over the coming week, BMKG noted that several Indonesian regions will still experience rainfall with varying intensities, as detailed below, cited from BMKG’s official page, Tuesday (17/3/2026):
Period 17-20 March 2026
Alert for Light-Moderate Rainfall: Aceh, North Sumatra, West Sumatra, Riau, Jambi, South Sumatra, Bengkulu, Lampung, West Java, DI Yogyakarta, East Java, Bali, West Nusa Tenggara, West Kalimantan, Central Kalimantan, North Kalimantan, South Kalimantan, North Sulawesi, Gorontalo, Central Sulawesi, Southeast Sulawesi, North Maluku, Maluku, Southwest Papua, West Papua, and Papua.
Alert for Heavy-Very Heavy Rainfall: Bangka Belitung Islands, Central Java, East Java, East Nusa Tenggara, East Kalimantan, West Sulawesi, South Sulawesi, Central Papua, Highland Papua, and South Papua.
Strong Winds: West Nusa Tenggara, South Sulawesi, Central Sulawesi, North Maluku, Maluku, Southwest Papua, West Papua, Central Papua, Papua, Highland Papua, and South Papua.
Period 21-23 March 2026
Alert for Light-Moderate Rainfall: Jambi, South Sumatra, Bangka Belitung Islands, Bengkulu, Lampung, West Java, Central Java, DI Yogyakarta, East Java, Bali, West Nusa Tenggara, East Nusa Tenggara, West Kalimantan, Central Kalimantan, North Kalimantan, South Kalimantan, North Sulawesi, Central Sulawesi, West Sulawesi, Southeast Sulawesi, North Maluku, Maluku, Southwest Papua, West Papua, and Papua.
Alert for Heavy-Very Heavy Rainfall: East Kalimantan, South Sulawesi, Central Papua, Highland Papua, and South Papua.
Strong Winds: South Sulawesi, North Maluku, Maluku, West Papua, Central Papua, and South Papua.