The heat index in Taguig City, along with the southern part of Metro Manila, has once again reached a dangerous level, at 42 degrees Celsius, on Saturday, May 4, 2024.

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(Photo by Dek Terante)

Twenty-nine other areas in the country have also reached dangerous temperatures based on the heat index. The heat index measures the perceived temperature that a person experiences, which differs from the actual environmental temperature. It is calculated by taking into account both humidity and air temperature.

According to the Philippine Atmospheric Geophysical and Astronomical Services Administration (PAGASA), the highest heat index recorded on Saturday was in Dagupan City, Pangasinan, hitting 47°C.

The heat index reached 46°C in Aparri, Cagayan and 45°C in Laoag City, Ilocos Norte.

Areas with a heat index of 44°C included:
• Bacnotan, La Union
• Ba, Zambales
• Puerto Princesa City, Palawan
• Virac (Synop), Catanduanes
• CBSUA-Pili, Camarines Sur

The following areas hit 43°C:
• MMSU, Batac, Ilocos Norte
• Tuguegarao City, Cagayan
• Aborlan, Palawan
• Dumangas, Iloilo
• Catarman, Northern Samar
• Butuan City, Agusan Del Norte

The following locations had a heat index of 42°C:
• NAIA, Pasay City
• Sinait, Ilocos Sur
• ISU Echague, Isabela
• Casiguran, Aurora
• Cubi Pt., Subic Bay, Olongapo City
• Ambulong, Tanauan, Batangas
• Infanta, Quezon
• San Jose, Occidental Mindoro
• Cuyo, Palawan
• Masbate City, Masbate
• Roxas City, Capiz
• La Granja, La Carlota, Negros Occidental
• Borongan, Eastern Samar
• Guiuan, Eastern Samar
• Zamboanga City, Zamboanga del Sur
• Cotabato City, Maguindanao