Heavy Rainfall to Persist Over Benguet, Parts of Luzon Through September 1

Excerpt: PAGASA said Benguet and several parts of Luzon may receive 100 to 200 millimeters of rain during multiple 24-hour periods from August 29 through September 1 as the Southwest Monsoon continues to bring heavy rainfall.

The Southwest Monsoon, or Habagat, is expected to continue bringing significant rainfall over Benguet and several other areas in Luzon through the start of September, according to PAGASA Weather Advisory No. 27 issued at 11:00 a.m. on Saturday, August 29, 2026.

Benguet is included among the areas forecast to receive 100 to 200 millimeters of rainfall in all three rainfall outlook periods covered by the advisory.

PAGASA cautioned that rainfall amounts may be even higher in mountainous and elevated areas. The effects of additional rain may also be worsened in places that have already experienced significant rainfall in recent days.

Rainfall Outlook: August 29 to August 30 Noon

From Saturday, August 29 until noon of Sunday, August 30, the following areas may receive:

100 to 200 mm

• Ilocos Sur
• Pangasinan
• La Union
• Benguet
• Bataan
• Zambales
• Tarlac
• Pampanga

50 to 100 mm

• Ilocos Norte
• Abra
• Apayao
• Kalinga
• Ifugao
• Mountain Province
• Nueva Vizcaya
• Nueva Ecija
• Bulacan
• Metro Manila
• Rizal
• Cavite
• Laguna
• Batangas
• Occidental Mindoro
• Oriental Mindoro

Rainfall Outlook: August 30 Noon to August 31 Noon

From noon of Sunday, August 30 until noon of Monday, August 31:

100 to 200 mm

• Ilocos Norte
• Ilocos Sur
• La Union
• Pangasinan
• Abra
• Benguet
• Zambales
• Bataan

50 to 100 mm

• Apayao
• Kalinga
• Ifugao
• Mountain Province
• Nueva Vizcaya
• Tarlac
• Nueva Ecija
• Pampanga
• Bulacan
• Metro Manila
• Rizal
• Cavite
• Batangas
• Occidental Mindoro

Rainfall Outlook: August 31 Noon to September 1 Noon

From noon of Monday, August 31 until noon of Tuesday, September 1:

100 to 200 mm

• Ilocos Norte
• Ilocos Sur
• La Union
• Pangasinan
• Abra
• Benguet
• Zambales

50 to 100 mm

• Batanes
• Apayao
• Kalinga
• Ifugao
• Mountain Province
• Nueva Vizcaya
• Tarlac
• Nueva Ecija
• Bataan
• Pampanga
• Bulacan
• Metro Manila
• Cavite

Higher Rainfall Possible in Mountainous Areas

PAGASA emphasized that actual rainfall may be higher in mountainous and elevated locations.

This is particularly important for areas such as Benguet and other parts of the Cordillera, where terrain can influence rainfall distribution.

The weather bureau also warned that impacts may be aggravated by significant antecedent rainfall, or rain that has already fallen in previous days. Saturated soil and already elevated water levels can make additional rainfall more consequential.

Local disaster risk reduction and management offices have been advised to take necessary measures to protect lives and property.

PAGASA Regional Services Divisions may also issue more localized Heavy Rainfall Warnings, Thunderstorm Advisories, and other severe weather information when necessary.

Weather Advisory vs. Heavy Rainfall Warning

A Weather Advisory and a Heavy Rainfall Warning serve different purposes.

A Weather Advisory provides a broader rainfall outlook covering approximately 24-hour periods and identifies affected areas mainly at the provincial level. It helps communities and local authorities prepare for rainfall that may occur over the succeeding days.

A Heavy Rainfall Warning, meanwhile, focuses on rainfall expected within the next few hours and may provide information down to the municipal or city level. These warnings use real-time observations, including Doppler radar data, to provide more immediate information about rainfall intensity and possible flooding.

Because Heavy Rainfall Warnings provide shorter-term and more localized information, the public should monitor advisories issued by the PAGASA Regional Services Division responsible for their area, particularly when making decisions related to classes, work, flooding, or other immediate safety concerns.

PAGASA said the next Weather Advisory will be issued at 5:00 p.m. today, August 29, 2026, unless significant changes occur earlier.