The Philippine Atmospheric, Geophysical and Astronomical Services Administration (Pagasa) reported that three distinct weather systems will continue to bring rain showers and thunderstorms to various parts of the country on Sunday, January 11, 2026.
Regional Weather Impacts and Forecast
In its 4 a.m. advisory, the state weather bureau detailed the specific effects across the archipelago. The northeast monsoon, locally known as amihan, is causing cloudy skies with light rains over Metro Manila, the Cordillera Administrative Region, and the rest of Cagayan Valley, as well as the provinces of Nueva Ecija, Bulacan, and Calabarzon. The exception in Calabarzon is the province of Quezon.
The Ilocos Region and other parts of Central Luzon will experience partly cloudy to cloudy skies with brief light rain, also due to the influence of the amihan.
Shear Line and Easterlies Bring Unsettled Conditions
Meanwhile, the shear line is affecting Quezon province, along with Cagayan, Isabela, and Aurora. These areas will have cloudy skies with scattered rain showers and thunderstorms.
The easterlies, or warm winds from the Pacific Ocean, are bringing similar conditions to the Bicol Region, Eastern Visayas, Dinagat Islands, Surigao del Norte, and Surigao del Sur. These regions will experience cloudy skies with scattered rains and thunderstorms.
The rest of the country can expect isolated rain showers or thunderstorms, also due to the easterlies.
Sea Conditions and Potential Low-Pressure Area
Pagasa also issued a gale warning for several seaboards. Northern Luzon and the eastern shores of Central Luzon will experience moderate to rough seas due to moderate to strong winds from the northeast.
The remaining coastal areas of Luzon, along with the eastern coasts of Visayas and Mindanao, will also have moderate to strong winds and moderate to rough seas. Other parts of the archipelago will experience light to moderate winds and waves.
As of the latest monitoring, Pagasa confirmed that no low-pressure area (LPA) was observed inside or outside the Philippine Area of Responsibility based on satellite imagery.
However, weather forecaster Obit Badrina noted there is a "possibility" that an LPA could form between Wednesday and Friday of the current week. If it develops, this potential weather disturbance could bring scattered rains over the eastern sections of Visayas and Mindanao, including the Bicol Region.
