Guiuan, Eastern Samar—The heat index in Guiuan soared to 50 degrees Celsius on Sunday, marking the second consecutive day of extreme temperatures after reaching 51°C the previous day.
According to Philippines News Agency, Geophysical and Astronomical Services Administration (PAGASA), the forecasted heat index was significantly lower, at 41°C for Sunday and projected to be 42°C on Monday.
Other regions also reported high temperatures, with Roxas City, Capiz, registering a heat index of 48°C. Metro Manila recorded heat indices ranging from 42°C to 44°C, accompanied by afternoon thunderstorms. The highest recorded actual temperature was in Muñoz, Nueva Ecija at 37.3°C, while Pasay City saw a maximum of 36.3°C.
This year's highest heat index so far was 53°C, reported on April 28 in Iba, Zambales. Other notable recordings include 50°C in Clark, Pampanga on May 6 and in Dagupan, Pangasinan on May 14.