Southwest Monsoon strengthens; rainy season begins in Western Luzon, Visayas

The country officially entered the rainy season in the western sections of Luzon and the Visayas on June 4, following several days of intermittent to frequent rainfall brought by the Southwest Monsoon, locally known as Habagat.

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Jan Gabrielle Visda

Author

1 min readJune 5, 2026
 Southwest Monsoon strengthens; rainy season begins in Western Luzon, Visayas

The country officially entered the rainy season in the western sections of Luzon and the Visayas on June 4, following several days of intermittent to frequent rainfall brought by the Southwest Monsoon, locally known as Habagat.

Weather observations over the past week showed a consistent presence of monsoon-driven rains, marking a clear signal that the seasonal transition has begun in affected areas.

These conditions are expected to continue influencing rainfall patterns across the western parts of the country. However, dry intervals or temporary pauses in rainfall—commonly referred to as monsoon breaks—may still occur and can last from several days to weeks before rain activity resumes.

Meteorological assessments also indicated that the developing El Niño phenomenon may further enhance Habagat-related rainfall at certain periods, particularly over western Luzon and the Visayas, potentially leading to episodes of heavier downpours during the season.

The Philippine Atmospheric, Geophysical, and Astronomical Services Administration (PAGASA) continues to closely monitor the country’s weather and climate conditions, advising the public to remain alert and take necessary precautions against possible hazards such as flooding, landslides, and other impacts associated with the rainy season and the Southwest Monsoon.


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Written by Jan Gabrielle Visda

Jan Gabrielle Visda is a dedicated campus journalist and contributor. Their insightful writing sparks meaningful conversations and keeps the community informed.

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