By GMA News Published May 24, 2026 8:52pm + Add GMA on Google Make this your preferred source to get more updates from this publisher on Google. The state weather bureau, PAGASA, said a total of 44 areas across the country are expected to experience ‘danger’ level heat index on Monday, May 25, 2026. (File photo) The state weather bureau, PAGASA, said a total of 44 areas across the country are expected to experience ‘danger’ level heat index on Monday, May 25, 2026. According to their five-day heat index forecast, the following areas may record heat index levels ranging from 42°C to 47°C:47°CDagupan City, Pangasinan46°CAparri, Cagayan Tuguegarao City, Cagayan CLSU Muñoz, Nueva Ecija45°CISU Echague, Isabela Baler (Radar), Aurora Casiguran, Aurora Cubi Pt., Subic Bay, Olongapo City Sangley Point, Cavite City, Cavite San Jose, Occidental Mindoro Puerto Princesa City, Palawan44°CDMMMSU Bacnotan, La Union Iba, Zambales San Ildefonso, Bulacan TAU Camiling, Tarlac Ambulong, Tanauan, Batangas Alabat, Quezon CBSUA-Pili, Camarines Sur Roxas City, Capiz Iloilo City, Iloilo Catarman, Northern Samar Borongan, Eastern Samar43°CNAIA Pasay City, Metro Manila Sinait, Ilocos Sur Laoag City, Ilocos Norte MMSU, Batac, Ilocos Norte Hacienda Luisita, Tarlac City Romblon, Romblon Legazpi City, Albay Virac (Synop), Catanduanes Mambusao, Capiz Dumangas, Iloilo Catbalogan, Western Samar Dipolog, Zamboanga Del Norte42°CCalayan, Cagayan NVSU Bayombong, Nueva Vizcaya Infanta, Quezon Mulanay, Quezon Calapan, Oriental Mindoro Coron, Palawan Cuyo, Palawan Daet Camarines Norte Masbate City, Masbate Zamboanga City, Zamboanga Del SurMeanwhile, 31 areas are expected to experience “extreme caution” heat index levels ranging from 35°C to 41°C.The following areas are expected to record “not hazardous” heat index levels, or below 27°C:Baguio City, Benguet - 26 °C BSU, La Trinidad, Benguet - 26 °C Benguet Radar, Tuba, Benguet - 22 °CThe heat index refers to the temperature felt by the human body when relative humidity is combined with actual air temperature. High humidity slows the evaporation of sweat, making it more difficult for the body to cool down.PAGASA advised the public to limit their time outside and use umbrellas or caps when outdoors. It also recommended drinking lots of water and avoiding the intake of tea, coffee, alcohol, and sodas. —Lyjah Tiffany Bonzo/LDF, GMA News