Southeast Asia Regional Profile
Indonesia
Sensitive Rain Seasons
- Dry season (June–October): Severely lengthened and intensified during El Niño; critical window for wildfire outbreaks.
- Wet season (November–March): Onset of the northwest monsoon is typically delayed by several weeks during strong warm events.
Primary Environmental Hazards
- • Widespread peatland, agricultural, and forest fires producing severe regional transboundary haze
- • Delayed rice planting and reduced staple agricultural production
- • Severe shortages of municipal drinking water and rural river navigability
- • Marine heatwaves triggering coral bleaching across the Coral Triangle
Current 2026–27 El Niño Context for Indonesia
With CPC projecting a very strong El Niño event, Indonesia faces prolonged dry spells, high wildfire danger, and delayed onset of the 2026–27 monsoon.
Major Monitored River Basins in Indonesia
Ciliwung River Basin
6.20° S, 106.82° EFlows through Jakarta; critical urban drainage sensitive to monsoon surges.
Kapuas River Basin
0.05° S, 109.33° ELongest river in Indonesia; draining vast West Kalimantan peat and rainforest landscapes.
Monitored Cities in Indonesia
Select any city below for real-time temperature, 7-day rainfall forecasts, and live flood risk score:
Jakarta
6.2° S, 106.8° ESurabaya
7.3° S, 112.8° EBandung
6.9° S, 107.6° EMedan
3.6° N, 98.7° ESemarang
7.0° S, 110.4° EMakassar
5.1° S, 119.4° EPalembang
3.0° S, 104.8° EHistorical El Niño Events in Indonesia
1997–98 Event
Unprecedented wildfires burned over 4.5 million hectares, releasing gigatons of CO2 and suffocating Southeast Asia in toxic smoke.
2015–16 Event
Severe drought and fires created a public health emergency affecting millions across Sumatra and Kalimantan.
2023–24 Event
Delayed monsoon onset and drought strained water supplies and stimulated forest fire hotspots.