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Angat Dam water level surges 40 meters after weeks of monsoon rains

Heavy precipitation from the southwest monsoon and two typhoons has dramatically increased water levels at the Philippines' critical water supply facility. The Angat Dam reservoir reached 191.53 meters above sea level on Monday, marking a significant rise after nearly a month of continuous rainfall.

LSN Philippines · 24 August 2026

The water level at Angat Dam in Bulacan has climbed substantially following an extended period of heavy rains that battered the region over the past weeks. According to the Bulacan Provincial Disaster Risk Reduction Management Office, the reservoir rose more than 40 meters as successive weather systems brought persistent precipitation to the area.

Typhoons Maymay and Luis, combined with the ongoing southwest monsoon, dumped significant rainfall across the watershed feeding the critical infrastructure. The continuous weather disturbances contributed to the dramatic increase in the dam's water storage, with the facility registering 191.53 meters above sea level as of Monday.

Angat Dam serves as a crucial source of water supply for Metro Manila and surrounding provinces. The rise in water levels provides relief after periods of lower reserves, though authorities continue to monitor conditions as the monsoon season persists. The PDRRMO has been tracking water levels and potential impacts on communities downstream of the facility.