Beware of Potential Coastal Flooding 12-27 March, Here is the List of Affected Areas!
Indonesia’s Meteorology, Climatology and Geophysics Agency (BMKG) has issued a coastal flooding (rob) warning for Indonesian coastal regions, effective from 12-27 March 2026.
According to BMKG’s official Instagram account, the occurrence of a New Moon phase on 19 March 2026 and Perigee on 22 March 2026 has the potential to increase maximum sea level heights. Based on water level monitoring data and tidal surge predictions, coastal flooding (rob) may occur in the following Indonesian coastal regions:
- North Sumatra Coast
- Dates: 18-23 March 2026
Locations: Medan Belawan, Medan Labuhan, and Medan Marelan
- West Sumatra Coast
- Dates: 18-21 March 2026
Locations: Padang City, Padang Pariaman District, Pesisir Selatan District, Agam District, Pasaman Barat District, and Mentawai Islands (Pagai, Siberut and Sipora Islands)
- Jambi Coast
- Dates: 23-26 March 2026
Locations: Eastern coast of Tanjung Jabung Barat District and Tanjung Jabung Timur District
- Lampung Coast
- Dates: 21-25 March 2026
Locations: Bandar Lampung, Tanggamus, South Lampung, Pesawaran, eastern Lampung and western Lampung
- Banten Coast
- Dates: 24 March 2026
Locations: Northern coast of Tangerang (Teluk Naga and Kosambi Districts)
- Dates: 21-25 March 2026
Locations: Western coast of Pandeglang (Labuan District)
- Dates: 20-26 March 2026
Locations: Southern coast of Pandeglang (Cikeusik District) and southern coast of Lebak (Bayah District)
- Central Java Coast
- Dates: 14-16 & 25-27 March 2026
Locations: Brebes, Tegal City, Tegal District and Pemalang
- Dates: 12-17 & 25-27 March 2026
Locations: Semarang City, Demak District, Pekalongan City, Pekalongan District, Batang District, Kendal District and Jepara District
- East Java Coast
- Dates: 12-22 March 2026
Locations: Western coast of Surabaya (Tuban, Lamongan, Gresik)
- Dates: 20-24 March 2026
Locations: Banyuwangi coast
- Bali Coast
- Dates: 19-25 March 2026
Locations: Southern coast of Bali (Gianyar, Badung, Denpasar, Tabanan, Klungkung and Jembrana)
- West Nusa Tenggara Coast
- Dates: 16-27 March 2026
Locations: Lombok and Bima coasts
- East Nusa Tenggara Coast
- Dates: 17-24 March 2026
Locations: Northern and southern coasts of Flores Island, Sumba Island coast, Sabu-Raijua Islands coast and Timor-Rote Islands coast
- North Kalimantan Coast
- Dates: 19-24 March 2026
Locations: Tarakan coast
- South Kalimantan Coast
- Dates: 12-15 & 24-27 March 2026
Locations: Barito Kuala, Banjar, Banjarmasin and Tanah Laut coasts
- Dates: 20-25 March 2026
Locations: Kotabaru and Tanah Bumbu coasts
- North Sulawesi Coast
- Dates: 19-23 March 2026
Locations: South Minahasa, North Minahasa and Southeast Minahasa coasts
- Dates: 19-22 March 2026
Locations: Manado Tua and Manado coasts
- Dates: 22-23 March 2026
Locations: Bitung and Kema coasts
- Maluku Coast
- Dates: 19-27 March 2026
Locations: Ambon coast
- Dates: 15-26 March 2026
Locations: Central Maluku coast
- Dates: 18-26 March 2026
Locations: Eastern Seram coast
- Dates: 18-27 March 2026
Locations: Kai Islands coast
- Dates: 17-27 March 2026
Locations: Aru Islands coast
- Dates: 16-26 March 2026
Locations: Tanimbar Islands coast
Impacts of Coastal Flooding
Coastal flooding generally affects community activities around ports and coastal areas, including:
Port loading and unloading operations
Coastal settlement activities
Salt farming and inland fishing activities
The public is urged to remain vigilant and prepared to anticipate maximum tidal surges and to monitor updates on maritime weather information from BMKG.