The Philippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) issued a weather advisory early Saturday, warning that a combination of weather systems will continue to bring damp conditions to most parts of the country.
Multiple Weather Systems in Effect
In its 4 a.m. bulletin on January 3, 2026, the state weather bureau identified three key meteorological factors influencing the national forecast. The shear line, the northeast monsoon (amihan), and the easterlies are all active, leading to a complex weather pattern that will result in rains across numerous regions.
Regional Breakdown of Rain Forecast
The Visayas, along with the provinces of Catanduanes, Albay, Sorsogon, Masbate, and Palawan, are expected to experience cloudy skies with scattered rains and isolated thunderstorms. This weather disturbance is attributed to the shear line.
Meanwhile, the northeast monsoon will be the dominant system affecting Northern and Central Luzon. It is forecast to bring cloudy skies with rains over the Cordillera Administrative Region, Cagayan Valley, Aurora, Quezon, the rest of Mimaropa, and the remaining areas of the Bicol Region.
Metro Manila and the rest of Luzon will also feel the effects of the amihan, resulting in cloudy skies with light rains.
Down in Mindanao, the easterlies will be the primary cause of cloudy skies with light rains and possible thunderstorms.
Marine and Wind Conditions
PAGASA also issued warnings for sea travel. Strong to gale-force winds are expected to generate rough to very rough seas over the seaboards of Northern Luzon and the eastern sections of Central Luzon, Southern Luzon, and the Visayas. These conditions are considered risky for most sea vessels.
The rest of Luzon and the Visayas will experience moderate to strong winds coupled with moderate to rough seas. In contrast, Mindanao will have comparatively calmer conditions with light to moderate winds and slight to moderate seas.
The public, especially those in flood- and landslide-prone areas, is advised to stay vigilant and monitor updates from PAGASA and their local disaster risk reduction offices. Travelers, particularly by sea, should heed the latest maritime warnings.
